Factory execution method

TECHNIQUE AND PROGRESS CONTENT
A.I:EXECUTION METHOD EXPLANATION
A.I.1: INTRODUCTION
Project: Hanoi sky lake resort golf club house
Location: Chuong My town- Ha Tay province
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Content of bidding package

Construction work is built on the area of golf court in Chuong My town Ha Tay province
Work area: Building all the club building
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Scale
Architecture solution

– Construction work is 3 floor building and 1 pit floor, concreted roofing with art tile
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Structure solution

– Construction work is designed body structure solution using column, beam, and 250#
reinforced concrete floor
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Execution method:

– Construction work is 3 floor building and 1 pit floor, built and belong to central area,
thus, execution method must guarantee following factors:
– Execution method must meet standards about noise, safety, cleaning and next

construction works, ensure not affect to surrounding
– Transportation means must be cleaned, not dirty tires, no garbage on the street
A.I.2: PREPARATION WORK
Contractor confirms preparation with large decision to quality of construction. After
searching for drawing contractor sees that this work requires high quality art, these are
some preparation of contractor before execution
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Document

After searching for contractor’s drawing which manage quality work, setting up legal
document management is through out from company to construction site such as:
employee document includes labor contract, labor safety commitment; material
equipment management file includes tested material quality results, checking


equipment; completion certificate. In Contractor office, there a team of skillful engineer
who sets up solution method execution progress for each work in details. Pursuant to
execution progress file, contractor has planed to prepare manpower, materials, and
construction equipments. Document is proceeded by contractor and finished when
starting execution.
2. 2. Human Resource. Contractor will appoint a vice director who controls
execution directly.

_ Technology department of contractor has an experienced team of staff who regularly
follows up quality of construction work
_ Manpower: Contractor has been executing many project of Taiwan, China, Korea and
Japan, so contractor has a skillful and responsible team in construction work. However,
contractor still confirm quality of human resource to the success of contractor. Hence,
staffs are still trained to enhance ability and especially, 100% of workers are must work

with good health skills and safety.
_ Human resource: Contractor arranges human resource depend on work, especially
main work like concrete building, plaster will be guaranteed for production line.
Professional labor team divided into plaster, building, plaster, steel, concrete, electricity,
water supply, equipment installation is combined tightly with each other in execution to
ensure progress.
3. Material, equipment

_ Material and supply: Investor must test material before using, quality of main material
must be tested. Material must be estimated to be suitable for progress and construction
plan in each period. In this work contractor focuses on concerning about things for high
quality and artic construction work.
_ Equipment: Contractor has plan to use equipment reasonably, depends on work
amount and progress, to supply on execution time, right standard
4. Plan

Plan preparation affects to execution progress and construction work quality
significantly. To arrange reasonable plan, contractor will proceed survey and search for
plane, confirming plan of execution, set up execution progress in detail for each
category to define office location, store, material ground, mixing machine area and
entrance during execution time


Contractor proceeds preparation such as locating construction, calculating material
transport road, transport land, necessary area for mixing concrete ground, small
structure, installation, mixing mortar, brick ground and formworks, steel ground and
ensure arranged reasonable plan.
After calculating for necessary, contractor proceed to protect from dust for environment


Main requirement

After calculating above floor limiting fallen materials as well as dust.
After executing floors, Contractor will proceed to spread

A.I.3-ARRANGE PLAN
Plan must be installed electricity, water supply, control office, tent, depot, other tents are
arranged to be convenient for execution
Construction concrete is fresh concrete and use concrete pump
1. Requirements when arranging execution plan

When arranging the execution plane, contractor will calculate to ensure following
factors:
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Offices and depots: Ensure enough area, satisfy functions of office.
Store floor is embanked high and chocked for damp-proof to cement
Inflammable materials are put separately and packet in buckets
Fire extinguishers in offices and depots
Security office: Near the entrance and observable to everywhere in the
construction site. Fixed telephone, fire extinguishers, security equipments in
security office
Reinforcement executing ground: Tent floor is built high and have satchels

Formwork assembling ground: Contractor uses most of corrugated ion formwork.
The system to support formwork is log of wood and steel log. Contractor is
responsible for maintaining formwork.

Contractor also uses both steel and wooden formwork. Thus, processed formwork must
be far away from depots


1. Water supply

Contractor must contact with investor and local government to have water for execution
Water supply system is tight in the ground and far from road
1. Sewage system

Contractor installs a temporary sewage system, connect water from many areas and
pump water to gas hole.
1. Electricity

Contractor supplies electricity and private wire to electricity box. Moreover, contractor
prepares generator to guarantee electricity. Using rubber covered cables with 3 phases
or 4 cores. There is electricity clock to measure electricity numbers
There are 2 main power sources:
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For equipments and machines
For other activities

Contractor installs tension pole across roads, wire is larger than or equal 4 m
1. Lighting system

Contractor installs headlights around the work, Light system to protect and serve for
execution at night
Moreover, contractor supplies another dynamo.40KVA ensures lighting of work and
serve machines in case of power cut or executing process at night
Arrange plan, contractor guarantee the standard of work, environment, security and
safety.
A.I.4. EXECUTION METHOD
GENERAL REQUIREMENT
Guarantee execution steps as same as design
Guarantee safety for people, machines and work
Guarantee surrounding environment
Avoid making noise
Clean transport means when leaving the work
Contractor covers the boot of bike when going out the wor


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Execution method

Base on the drawing, contractor gives the method presented following
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Survey method

Contractor surveys when beginning executing work. Survey engineers help experiences
and take part in many works
In order to set up, maintain figures in work correctly, survey team receives a border line
and investor’s standard (receivable certificate). Then, team is responsible for defending

border line and fix.
Base on border line high standard to main pivot, set up pitch system to confirm the
pivot. Setting up pitch by: each pitch is confirmed by center point. This point is set up to
use easily and exactly, not affect to execution. In execution, contractor bases on pitch
and height to execute according to requirement of investor and drawing
Survey is always checked and noted in detail. Figures are announced to investor
A.I.4.1 FOUNDATION EXCUTION METHOD
1)Excavation method
Due to large amount of land, we use both method of machine and manuals. Excavating
by machine is used regularly, using manuals to fix foundation hole. Excavating and
fixing foundation hole follow to designed depth.
Around hole, drainage ditches and arrange pump to absorb water continuously in case
of rain.
Excavation process is suitable for restriction to guarantee the stability of roof. In case of
less stable place, we process to build stake.
Dimension, form, height of foundation hole must be suitable for design. Taking over
before going on next work.
* Risk of excavation
Digging in the heavy rain causes soil fall. After rain, filling in hole, change 15cm in hole
in comparison to designed level. After fixing each ground layer, replacing foundation by
concrete bricks.
There is “underground rock” or other, replace by mixing sand and crushed rock.
Filling up foundation hole
After executing foundation concrete, filling foundation hole.
* Technical requirement in filling land
When covering sand, guarantee that foundation sand has moisture in restricted area.
Dry sand needs to be watered; reduce moisture for much humid sand.
Cover sand and distribute into each layer and stamp.

*Technical method
Use compactor and worker.
Stamp layer to another tightly
Fill sand by line
2. Foundation work

After finishing foundation, place and fix it.
Pour the lean concrete layer for foundation. Use survey machine to confirm centre and
mark on the surface of middle layer concrete. Proceeding steel installation when the
concrete commit to the hardness. Use block for small concrete with the same depth as
concrete layer for steel. Label of this is equal to one of foundation concrete.
After reinforcement assembling, installing casing used iron formwork. Foundation
formwork commit to designed type. Foundation casing is kept by steel column which is
wrapped and wooden column. It is important for contractor to guarantee stability of
formwork.
Checking steel formwork and cleaning before pouring concrete.
Pour foundation concrete: Replace mixed concrete into concrete pump. Material of
concrete commits to clean standard.
Use stamping concrete d=45-60mm to stamp concrete. The concrete is poured into
each layer and damped following to technique. Surface of foundation is smooth by
hawk, guarantee flat degree and designed level.
Covering foundation is only proceeded after maintaining concrete following technique
finishing, underground work and accepted by investor.
A.I.4.2: CONCRETE EXECUTION METHODS FOR BODY PART
RAW MASONARY
1. Execution of wall, concrete, steel, pit floor

Base on structure design contractor estimate, design using casing and recycling during
work.
Reinforcement assembling

Tie block concrete with the same thickness as protected concrete and grade as one of
structure concrete.
Preliminary acceptance for reinforcement
Drill concrete floor to hammer steel to fix wall thickness
Formwork assembling in one side only
Pour concrete for wall


2. Reinforcement assembling

Before install steel for the wall, contractor uses survey machine to define centre of
pivots on the concrete floor
Base on pointed centre on the concrete, check the right position of steel, tight steel to
other steel in case of right position
* Wall reinforcement procedure
– Drill to create roughness of wall foot concrete and clean
– Adjust straight ahead steel bar, ensure distance between steel bar
– Connect straight steel bars with another
– Install cross-bar
– Adjust steel bars to guarantee size and distance between bar
– Tie steel and concrete block into one side, the number of block mass ensure to make
steel stable and unbroken.
– After finishing work, investor checks steel. Contractor only proceeds to combine
formwork if it reaches requirement.
1. Wall formwork combination

Contractor confirms: Formwork combination must make wall straight, flat, smooth. Thus,
formwork must be hermetic, stable. Corrugated iron formworks have the same size as
structure size.
In case of missing corrugated iron formworks, contractor uses wooden formwork.

Contractor cleans and paints a petrol layer before using to untie easily.
* Formwork assembling procedure
Base on defined centre of pivot. Line 2 lines to wall edge.
Drilled hole D12, distance 1.5m per 1 hole.
Hammer steel pieces D12 following to line in order to become bolt inside formwork
Combine one side corrugated iron form work.
Install steel boxes into 3 lines:
Line 1: 20cm from bottom of concrete wall
Line 2: 60cm from Line 1
Line 3: 15cm from wall surface
Boxes control thickness of concrete wall. If thickness of wall always commit to standard,
casing will not be deformed.
After installing and fixing boxes bar, conducting to tie concrete block into other steel wall
side. Then, clean wall foot and combine casing.


After combining, casings are propped up by length control machine. Contractor uses
D12 cable with control machine to control and to pull casing inverse to propulsive force
of pulled bar in order to balance pressing force on casing, guarantee stability of casing
and control wall casing to the right or the left easily.
After combining casing, contractor invites investor to check. Next, contractor prepares to
pour concrete.
1. Pit floor concrete wall pouring.
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Method

By concrete pump
Concrete is poured on the partition with the thickness of 30cm with many times to
guarantee solid and adhesive degree.

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Pit floor wall concrete stamping method

Before pouring concrete wall, contractor uses pump to water wall foot brick and pour a
cement layer with rate ½ and mix additive for damp-proof. After pouring mortar, pouring
concrete immediately.
Wall concrete has 14cm- landslide, distance between wall steel is large. Thus,
contractor uses stamping machine with diameter D50, radius is equal as 1/3 as length
of power hammer. When covering next layer on previous layer, power hammer is staked
out with the depth of more than 5cm.
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Concrete pour requirements

Avoid changing position of steel, formwork and guarantee the depth of protected
concrete layer.
Pouring concrete continuously in oder to avoid separately of concrete until finishing any
structure following to design.
The height of falling concrete is smaller than 1.5m to avoid classifying. If it is higher than
1.5m, pour concrete by sloping conduit or movable pipe. Material conduit must be
smooth and hermetic. Material conduit width is as 3.5 times as the largest diameter of
reinforcement. Slope of conduit is guaranteed for concrete not stuck.
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Pouring concrete note:

Formwork, scaffold and reinforcement are tested tightly in case of trouble.

Concrete is stamped by stamping machine. All position is stamped in the right way.
Canvas is available to cover concrete when rain. Concrete is not poured because of
problems, wait until it reaches at 25kg/cm2. Before pouring, roughness flat is handled,
pour solid cement, mix additive for damp-proof.
Thickness of concrete layer bases on concrete supply, transport distance, type of
stamping power, characteristic of structure and it doesn’t exceed standards:
Straight stamping: Length of each layer <= 1.25 length of stamping
Across stamping: Length of each layer is 12- 20cm.
Following and noting contents in periods of pouring concrete:
Beginning and ending time
Concrete grade, depression
Concrete amount in each period
Check concrete sample
Temperature
Concrete temperature
Concrete maintenance: Useful for developing speed of concrete according to design
requirement, method, and concrete maintenance procedure TCVN 5592-1991. “Heavy
concrete requires natural warm maintenance”. Moisture maintenance procedure divided
into 2 periods: first maintenance and following maintenance. 2 periods is continuous.
+ First maintenance: cover concrete surface by humid material to keep water for
concrete.
+ Following maintenance: proceed after following maintenance until stopping. Watering
for concrete surface regularly, times per day depend on temperature, weather to keep it
humid. Maintenance times last from 5 to 6 days.
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Reinforcement concrete column execution method

1. Casing, reinforcement

Reinforcement column belong to system that burden all loading capacity of work, thus,
contractor concern about seriously
Base on size of each structure, contractor uses casing of contractor as formwork
column.
To executing column, contractor gives execution order:
Use Theologize to place centre of pivot
Confirm size of column circumference
Drill and hammer D12 onto edge
Install reinforcement concrete column


Tie steel concrete block
Acceptance for column reinforcement
Combine 3-size formwork of column
Adjust, fix 3-size formwork box on the right position
Adjust straight reinforcement column, block to guarantee protected layer for
reinforcement around column
Clean pivot foot
Combine other size of formwork
Adjust; prop up formwork in the centre of pivot and straight
Acceptance for column formwork
Method of propping up and adjusting formwork column
When pouring the floor concrete, contractor calculate to place anchor on the floor
surface to be point to hook cable.
To control column, contractor estimates to prop up
First line is next to floor surface
Second line is 1.4m from floor
Third line is 50 cm from column
(Base on specific height of each column, contractor adjusts distance of 2 columns)
To balance force and pull in or pull out easily, contractor uses column to pull by steel

and cable with diameter 8-12mm.
To check vertical of formwork column, contractor equips plumb bob for each team,
combine with survey team to check straight level of formwork.
The column with the height of more than 1.5m, contractor arranges concrete door
across formwork column so that height of concrete <= 1.5m. Concrete door is next to
the largest. In column foot, contractor arranges 1 toilet door to clean that.
Contractor install waiting steel to combine wall
After taking quality of formwork column, contractor invites investor to check and conduct
to pour concrete.
Contractor swept a petrol layer to prevent formwork to absorb cement to untie casing
easily.
1. Concrete column execution

Contractor waters column foot then close cleaning door in column foot.
Avoid separating concrete; contractor pours a yellow sand layer mortar with rate 1/2 in
foot column before pouring concrete.


With high concrete column, contractor pours concrete into many layers. Thickness of
layer <= 40cm. After finishing, contractor continues to pours other. When stamping,
power-hammer is staked out into previous layer to guarantee separation.
Contractor knocks surrounding casing so that concrete surface is smooth besides
stamping.
To control the height of concrete column, contractor uses theodolite to confirm stamping
bottom. Stamping bottom is used to pour concrete column. Contractor marks red paint
line on the surface of formwork column as control landmark for height.
Concrete column requirements
After untying casing, concrete surface must be smooth solid.
Untied column has square sharp, angles aren’t changeable.
Right position for column

Column must be straight
1. Formwork combination notices

If there is any leaky hole, it needs maintaining and preparing casing.
1. Reinforcement , casing and concrete floor beam

Execution order this procedure affects to progress and quality of work. Contractor gives
casing execution procedure so that execution procedure is circulated:
Use survey machine to check beam
Install beam untie system
Adjust top column to beam bottom
Install satchel
Cover corrugated-iron formwork as beam formwork
Use survey machine to check or beam bottom
Adjust beam bottom according to design
Check beam bottom casing
Install beam steel
Install formwork into beam
Install column to prop up floor
Cover formwork into floor formwork
Check casing and beam
Install floor reinforcement
Check floor beam casing and floor beam steel installation


1. Floor beam casing execution

General requirement
Casing and column structure bases on casing structure, commit to following
requirement:

– Guarantee right size and sharp
– Guarantee tight to avoid loss of cement
This affects to execution progress and work quality significantly.
Contractor uses Pal and Minh Khai scaffold casing combining with wooden formwork so
that work gets high quality and execution process. The system is installed to guarantee
the high stability. These materials are used to execute the following casings:
– The system of propping scaffold combining steel column constriction.
– The combination between U steel cross bar and wooden satchel.
– The combination among casing corrugated iron and wooden pressing casing.
* Preparation steps:
– Contractor calculates the height of scaffold which is used for the propping straight for
each girder, floor system based on the building height.
– Calculate the capacity which presses into wooden satchel in order to define the height
it.
– Define the general height of all materials:
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The height of scaffold.
The height of wooden satchel of girder and floor.
The thickness of corrugated – iron formwork.

Contractor arranges the executing formwork team based on the amount of work.
The system of PAL and Minh Khai scaffold will be put upon the jack system to adjust
height. The foot jack will be put upon the thick casing to avoid its concentrating force to
concrete casing.
Minh Khai scaffold will be used to plaster and build work.
Contractor uses steel bar alternated wooden propping to ensure safety and right
techniques for stair execution.

Contractor will put the parts of materials available in concrete such as bolt, iron hook…
to use for the works of later parts, pipe other materials following design.
Floor casing is installed by fixing steel casing which connects to each other to form a
large part. The system of casing will be put upon the system of steel satchel and PAL
scaffold.


Adjust the system of casing, floor according to design. Contractor uses foot jack, top
jack of scaffold system which can be adjusted up and down with the check of measuring
devices.
Contractor will organize to take over casing to avoid later unfortunate mistake before
installing reinforcement. The take- over content includes rechecking centre, rod, the
height of casing according to design. Check shape, size, smooth, clean, stability of
casing. Check the stability of casing, scaffold and floor.
Contractor ensures the right time, ensure concrete attain the right volume and
contractor also ensure to have enough take-over note which attain the result.
1. Reinforcement and casing execution

Contractor proceeds installing reinforcement upon the system of already finished casing
right after installing them.
The type of reinforcement will be put at least 45cm high from the floor and stay in the
roof factory area before and after being curved. Reinforcement must be ensured to be
cleaned before pouring concrete without oil or other poisonous substance.
Contractor will arrange enough materials, machine which serve for processing cool
curving, installing reinforcement according to design which is registered by investor and
TCVN 8874-91.
Reinforcement work will be processed right at construction and
then installed at right position according to design and located reliably. Constructor
arranges each steel team which is delivered the specific works with different
department.

Floor reinforcement, stair are installed right upon the system of floor casing. Constructor
will install main reinforcement beam right after installing the system of bottom casing
beam. Constructor will install secondary reinforcement beam outside and then locate at
beam’s design position.
Reinforcement is connected with each other soft steel line (0.8-1mm) to ensure the
stability when pouring concrete. Nut and code connect surely to straight steel by tying or
wielding. Wielding reinforcement work will be processed according to TCVN 572493(VN STANDARD 5724-93). The wielded beams are suitable with necessary demand
and they will not be crust over and swollen.
Contractor will cast the
concrete mortar blocks which has the height equal to reinforcement protection concrete
of each structure according to design to ensure the later pouring concrete work .
Contractor follows all the reinforcement work according to design notice and investor.
Contractor will invite investor’s technical supervisor to take over and sign the papers
about reinforcement.


1. Floor concrete beam execution

Concrete work is processed right after taking over reinforcement installation, the takeover documents are complete. Contractor also does the check of casing system,
scaffold to ensure the stability in pouring concrete process before officially pouring
concrete.
Concrete beam, floor use commodity concrete poured by pamp.
Contractor calculates to pour each concrete within a day. Concrete will calculate to
guarantee technical demands about circuit.
Execution circuit and execution circuit method.
Concrete must be stopped pouring according to restriction about circuit if the pause time
of pouring concrete is up to 90min in any circumstances.
Contractor will commit to TCVN 4453-95 standard about concrete pouring circuit.
Floor concrete pouring circuit is 1/3 span to the perpendicular direction to short side and
to the pouring concrete direction.

Circuit must have 1mm flexible steel net to connect later section; it must be blocked so
that concrete will not be flown.
After stopping pouring concrete, if the next block concrete is poured, the circuit contact
must be carved roughly and watered by solid cement, at this point, we use washer
water proof and glue layer. Contractor will pour a mortar layer with rate 1:2 with damp
proof additive.
Notice when pouring concrete contacts with circuit:
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Concrete at circuit can not mixed with large rock or in pouring concrete process
rocks are concentrated in circuit, they must be given away.
Stamping carefully without any mistake.
Concrete pouring method for floor
Divide pouring
concrete part: Concrete part is defined for each small pour so that the pouring
time is not up to 60min after being finished. This method is to cut concrete
pouring work in order to not be concentrated; therefore, concrete will not be
separated. Moreover, after pouring the later concrete layer, the previous begins

Pour the floor concrete, contractor applies myriopod method. When pouring each layer,
contractor uses stick to cover in order to the thickness of concrete is 1 cm bigger than
one of floor. Then, compacting carefully until there is an appearance of concrete
layer .This the time, contractor stops compacting and conducting to complete the
concrete surface.


To confirm the thickness of floor concrete, contractor uses a stick connected to a
bar .The thickness of concrete commits to standard when when concrete surface meets

the bar. Besides checking method, contractor arranges a survey machine to combine
flat level and high level in pouring
concrete.
Maintenance method after pouring
concrete:
Contractor needs to prepare satchel, casing to prevent rain or sunlight which affects to
the quality of concrete
Concrete maintenance is an important part to have stable concrete and prevent
structure surface from split. To guarantee the quality of concrete, contractor maintain
concrete after 7 hours. For the floor, contractor focuses on damp-proof.
After pouring concrete and complete concrete surface, contractor prevent work from
radiation of the sun according to requirements and TCXDVN: 318-2004 about
maintenance and concrete structure
Concrete needs maintaining at least 7 days continuously and watered during that time
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Requirements in concrete execution of the work

Before using, contractor gives investor quality certificate to guarantee no alkali reaction
After designing concrete, contractor gets the sample to check. Materials with standard is
kept in the construction site to compare with other
In case of the rain, contractor covers against water
Concrete experiment:
After pouring concrete, contractor gets concrete samples in the work .The sample must
have date, month, year, work name .Each sample group includes 6 pieces.3 pieces
have age of 7 days and 3 pieces of 28 days.
Contractor guarantees experiment equipments in the construction site and maintains
during execution time:
+ Standard screen system
+ Suitable weighbridge, equipments to identify moisture

+ Gauge glass
+ Concrete test equipments:
Cudgel and beam
16 metal patterns with 150mm to try cube sample
Cistern 1. 2*1.2*0.6 to maintain concrete
Shovel
Steel ruler 300mm


Contractor maintains experiment to check work quality during execution time.
Experiment results are restored in work
After maintenance, contractor and investor check concrete
4. Construction
5. Material requirement

Construction is very important in execution. Thus, contractor conducts maintenance
methods to guarantee techniques from the beginning.
Bricks must be solid, not separated and reach the standard. Half baked bricks, brickbats
are rejected.
Mortar commits to design. Using mixing mortar after 30 minutes, not using mixing
mortar for a long time.
1. Preparation

In the construction, contractor puts lead of waited steel to connect wall to reduce
plasticity of construction blocks and concrete structure. Thus, there is no leak between
concrete blocks and concrete structure.
1. Execution order and methods

Base on the centre of column when conducting to place column in the formwork
combination and concrete pour process .Mark ink border lines

Clean the wall foot by watering
Stretch the horizontal line .Building fontanels
Stretch vertical line (Use plum line)
1. Construction method

Stretch mortar on the bricks, near to wall edges 1-1.5 cm
The length of mortar layer leads to length of each brick (in the drawings)
Knock on the brick to subside the mortar
Put the brick on the subsided mortar layer. Thickness of mortar vein is 1.2-1.5 cm.
Thickness of mortar vein is 1.5 cm. Use trowel to dredge two veins of wall to make it
deeper 0.5 cm.
1. Construction blocks demands:


Contractor ensures all construction block to be built at right position according to design
and stop point restriction.
The construction block must be put stably, tight across and straight circuit, must be
straight perpendicular to floor. Across wall beam, door beam must have right geometric
shape, structure and position according to height, smooth design.
In building process, let holes, water pipe drains, air-ducts and decorating position,
unnecessary position can not be let holes to weaken walls.
Crossing, contact position of construction blocks must be built at the same time.
Contractor will put perpendicular measure and plumb line to at least 2directions, the
height of each construction period is about 50-60cm after drying mortar, build the next.
When building pillar next to wall, do not let pillar have straight circuit.
Only after building pressing force structure of downstairs, we will build the upper stairs.
Do not collide with already built wall in order to fallen it or affect the stability of wall
structure.
Already built wall after 8 hours must be watered maintain layer so that the mortar have
enough water to participate in physicochemical reaction; therefore, it will not be brittle,

which ensures the construction volume.
Contractor will use standard steel plumb line to check the vertical degree, and wooden
or aluminum alloy measurer which have parallel and straight sides (2-2.5m) to check the
smooth of construction blocks. Contractor will use angle protractor to check the angle of
construction blocks before building.
Contractor will equip protractor for each team, it is a light alloy which marks construction
lines, beam position, windows and other parts.
Already building walls, mortar layer is not unit degree when raining. Contractor will use
canvases to cover the mortar layer.
Technical engineer guides directly and checks regularly in construction during the daily
building process.
A.I.4.3. COMPLETION METHODS FOR FINISHING WORK
1. Plaster

Mortar of wall which has been kept for a long time. Then, conducting to mortar to
guarantee quality of mortar and affect to surrounding work.
Before conducting mortar, contractor invites investor to check column centre, wall flat
degree, tight mortar pulse.
Contractor conducts to mortar, contractor waters on walls, make wall surface and
mortar adhesive. Mortar layer do not elastic
Mortar follows to design, thickness depends on structure


Create drainage ditches to sink wire column and technical box.
Mortar surface must be equal and solid
Type of mortar and thickness of mortar base on design standard 15-20mm and divide
mortar into 2 periods. Vertical deviation is 0.5% and horizontal deviation is 0.8%
General requirements
Mortar surface is smooth
Angle has square shape

Guarantee structure standards
Contractor is responsible for mortar and completion. In mortaring angles, contractor
uses angle ruler to check straight and square shape
Contractor maintains mortar layer after plastering 24 hours
Engineer team completes and are in works regularly
2. Pressing and plastering work:
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Plaster brick is up to the following factors:

Contractor’s title are up to these following parameters:
Absorbent degree Hp<0,2%.
Pressing degree Rn>500kg/cm2.
Curving degree Ru>500n/mm2
Abrasion degree Mn<130mm2.
Durable degree with acid, base, not mouldy surface.
Bricks used must be brand new.
When carrying bricks to rooms for plastering, Contractor will put them along with the
wall side in order not to affect structure.
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Plastering work:

Plastering work begins when structure work is finished. The plaster floor is smooth and
clean.
Plaster material is in right sizes, colors, design. Plaster brick is at high standard. Cut
bricks must be smooth.
Plaster floor is smooth, not rough. Checked by 2m long protractor. Slots between
plaster floor and protractor <=2mm. Slopping degree and direction are at right design.
Between plaster floor and bricks is full of mortar. Check solid degree by knocking lightly

on the plaster floor.


The thickness of cement layer <=15mm. The circuit between bricks is pure cement and
water.
At compulsory positions about damp-proof, check the damp-proof layer and other
details before plastering.
Plaster floor must be built according to design about pattern color, height, smooth,
plopping, connection to floor degree.
Pressing and plastering work will be ensured the whole enamel surface of producer by
the contractor after being finished.


Pressing work:

Pressing work is installed after building and taking over electricity and water
departments and other underground parts.
Press structure surface is according to straight direction. Across pressing circuit needs
being full of mortar building pressing and building producer.
Clean the press floor after pressing each part or all parts. Cleaning the press floor is
processed only after pressing circuit gets hard.
Press floor must be followed the following demands:
General press floor is ensured the right shape and geometric size. The color must be
the same.
Across and straight mortar circuit is sharp, straight, regular.
Mortar between structure and pressing bit is solid.
There is no stained point of paint and lime. When checking by 2m protractor, slot
between pressing bit and protractor is <= 2mm.
3. Painting work:

After checking that all walls are so smooth, we do the painting. In painting process,
check every angle by lights. All mistakes must be corrected at once.
Painting layer surface is smooth, not rough.
Protection method must be made in crowded areas.
4. Glazing execution:

Structure is stable, no dirty, oil before Glazing.
To guarantee the connection between smooth mortar layer and floor, the smooth
surface needs watering. If having the lined smooth layer divides 10 – 15cm areas.


The last smooth layer uses cement sand mortar with maximum material rod<= 2mm.
After 4-6 hours, depending on the weather, moisture and air temperature, we finish by
spreading a concrete line or thin mortar concrete.
The smooth surface must be guaranteed about surface finish according to design.
Grinding process is done at the same time with mending general tit and tear surface.
Thread bend work is done right after painting. Thread line need regular about weight,
depth and sharpness. If use roller with anti-smooth material, roll right after color cement
layer is not solid.
Areas and positions have demand about high damp-proof such as: toilet, water tank,
conduit….must process damp-proof layer according to design.
Quality of smooth surface must guarantee about taper, plane ness.
5. Door installation:

– Wooden doors and aluminum-glass frame doors are manufactured in workshop
according to design and rechecked through practical execution. Contractor will give
product quality certification to investor before execution.
– Contractor guarantees installing with right technique and experienced team. Check
carefully straight, door frame smooth degree when installing.
-Aluminum-glass frame doors are checked by high pressure pump. The connection

between door and wall is processed by glue and damp-proof.
– Coefficient of hardness of door must be high and no deformation.
– Detail installing must be accuracy. Doors must move smoothly. Bolt lock, hinge are
tight, fine art.
– Door surface must be smooth, no cement mortar or closed chemical on it.
– Glass is up-to standard product, no ripple.
– The filled connection is used with transparent and good silicon glue which is not
changed color when sun and rain.
– Installing windows and doors are processed late. It is guaranteed not to spoil already
work such as ceiling, wall…
– Hinge must have good incompetence and be installed tightly and accuracy. Handgrip,
door lock must be installed tightly and accuracy.
– All door and glass wattle must have good incompetence, against windstorm according
to design.
6. Electricity, thunder protection

Electricity execution