Method Statement of Brickwork

CÔNG TY CỔ PHẦN XÂY LẮP THƯƠNG MẠI 2
Architects & Construction Service Corporation

METHOD STATEMENT
SMC Manufacturing (Vietnam) Factory-phase 1 Project

BRICK WORK & PLASTER WORK
FACTORY No.1

Ref No:

SMC-ACS-MS-01-BRW-001 Rev 02

ACSC- CONG TY CO PHAN XAY LAP THUONG MAI 2

SMC-Factory No.1/MS-Brickwork

Page 1


CÔNG TY CỔ PHẦN XÂY LẮP THƯƠNG MẠI 2
Architects & Construction Service Corporation

Revision History
Revision
01
02

Date of issue
07/12/2015
12/12/2015

Purpose of issue (approved/ revision)
For Approval
Revised ITP & Checklist

Submitted by ACSC
Prepared by
Reviewed by
Approved by

Name
Lê Long Hậu
Nguyễn Hoàng Trinh
Nguyễn Văn Trung

Position
Site Engineer
Site Manager
Project Manager

Date

Signature

Approved by KOA
Checked by
QA-QC
QA-QC
HSE
KDA

Position

Date

Signature

Reviewed by
Approved by

Approved by Client Name
Prepared by
Reviewed by

SMC-Factory No.1/MS-Brickwork

Position

Page 2

Date

Signature


CÔNG TY CỔ PHẦN XÂY LẮP THƯƠNG MẠI 2
Architects & Construction Service Corporation

Contents

1. INTRODUCTION
1.1. PURPOSE
This method statement describes the methodology for brick wall and plastering on brick walls of
Factory No.1.
Brickwork will be carried out after all constructions of relevant concrete structures such as slab,
columns completed. The concrete work constructions were covered by the other submittals,
therefore they will no longer be discussed in this method statement.
Most of brickwork are for walls of Utilities Building and will be applied from the ground to 1st floor of
building. All walls will close the spaces between concrete structures of column to column and slab to
slab, therefore they are classified in non-load-bearing walls.
There will be some openings on the brick wall at location of doors and windows. Around these
openings, reinforcement concrete stiffener and lintel beams will be cast before to carry out the brick
walls.
After brick walls have been completed, the plastering will be applied on both sides of them, if any.

1.2. DEFINITIONS:
PROJECT PARTICULARS:
Project name

: SMC MANUFACTURING (VIET NAM) FACTORY-PHASE 1 PROJECT

Address

: Long Duc Industrial Park, Long Duc Ward, Long Thanh District, Dong Nai Province,
Viet Nam.

PARTY:
Client/ Owner : SMC MANUFACTURING VIETNAM CO., LTD
Contractor

: KAJIMA OVERSEAS ASEA PTE LTD.
Responsible for the supervision of Contractors who will construct the podium and all
related activities as outlined in this procedure.

SCOPE OF WORK
The works to be carried out by Sub-Contractor (ACSC) and shall apply for works at Factory No.1 of SMC
MANUFACTURING (VIET NAM) FACTORY- PHASE 1 PROJECT.
1. Construction Reinforcement Concrete Structure works included:
a. Pile head treatment
b. Earth work
SMC-Factory No.1/MS-Brickwork

Page 3


CÔNG TY CỔ PHẦN XÂY LẮP THƯƠNG MẠI 2
Architects & Construction Service Corporation
c. Formwork
d. Reinforcement Steel Rebar work.
e. Concrete work
2. Finishing works included:
a. Brick work.
b. Plaster work.
c. Painting work.
d. Tiling work (Wall & Floor).

2. BUILDING DESCRIPTION:
Location:
Factory No.1 are located at the corner of Road No.D5 &N2-5 in Long Duc Industrial park as below

Factory No. 1
Description:
-

Building purpose : Factory
Foundation
: Spun piles (D300, 350, 400 mm)
Structure
: RC structures + steel rafter; Slab on grade.
Dimensions:
o Factory
 140m long (14x10m); 60 (4x15m) - 69m wide
 Ground Floor (FL. 0.00m); 1st Floor (FL. +7.25m)

SMC-Factory No.1/MS-Brickwork

Page 4


CÔNG TY CỔ PHẦN XÂY LẮP THƯƠNG MẠI 2
Architects & Construction Service Corporation

o

 Height : 11.40m
Utilities area: 2 x (120m long, 4.5m wide).

GROUND FLOOR PLAN

-

Floor load:
o Factory Ground Floor
o WC Ground Floor
o Stair case
o Storage/Utilities

-

Slab thickness:
o Factory Ground floor slab
: 300 mm thk.
o Storage/Utilities Ground Floor slab : 150 mm thk.
o 1st Floor slab
: 140 mm thk.

-

Area:
o

o

: 40 KN/m2.
: 2 KN/m2.
: 3 KN/m2
: 10 KN/m2

Ground floor
+ Factory area

+ Storage/Utilities area
1st Floor

SMC-Factory No.1/MS-Brickwork

: 9561 m2
: 8400 m2
: 1161 m2
: 9561 m2

Page 5


CÔNG TY CỔ PHẦN XÂY LẮP THƯƠNG MẠI 2
Architects & Construction Service Corporation
GUTTER

CORRIDOR ZINC ROOF SHEET

DOWN SPOUT

C OR R ID O R ZIN C R OO F SH EET

T .R.BEAM
GFL+13.650

1 / 20

T .O.BEAM
GFL+11.900

1 750

1/ 20

CANOPY; STEEL BEAM

F AC TO R Y -02

1FL
GFL+7.250
1 3650

C ON N E C T ION
C OR R ID OR

4 650

STEEL KICKER

GFL
GFL±0

4 800

4800

7 250

9 500

1 1600

LOADING BAY

GUARD POST ( 100?, H=1500)
4 500

1 5000

1 5000

1 5000
6 0000

SMC-Factory No.1/MS-Brickwork

Page 6

1 5000

4 500

1 2000


CÔNG TY CỔ PHẦN XÂY LẮP THƯƠNG MẠI 2
Architects & Construction Service Corporation
TYPICAL CROSS SECTION

SMC-Factory No.1/MS-Brickwork

Page 7


CÔNG TY CỔ PHẦN XÂY LẮP THƯƠNG MẠI 2
Architects & Construction Service Corporation

3. ORGANIZATION CHART
3.1. Organization Chart (Factory No.1)
Project Manager
NGUYỄN VĂN TRUNG (MP: 090 330 7742)


Site Manager
NGUYỄN HOÀNG TRINH (MP: 090 2911235)


Deputy Site Manager 1

Deputy Site Manager 2

NGUYỄN TRÍ KHOA (MP: 0937 229 680)

LÊ LONG HẬU (MP: 093 734 3055)

Site Engineers

QA&QC

Nguyễn Minh Tuấn (MP: 098 314 5069)

Phan Quốc Trường (MP: 0906 027 797)


Nguyễn Văn Hào (MP: 0938.722.730)

Shop Drawings
Safety Supervisors

Hoàng Văn Hải (MP:908 818 1059)

Đỗ Vũ Quyền Anh (MP:090 853 1908)

Construction teams
Phương Phương Việt Company

SMC-Factory No.1/MS-Brickwork

Page 8


CÔNG TY CỔ PHẦN XÂY LẮP THƯƠNG MẠI 2
Architects & Construction Service Corporation

3.2. Assignment

Position
Deputy Site manager
Site Engineer
QA&QC Engineer
Safety Supervision

Factory No.1
NGUYỄN TRÍ KHOA

Factory No.9
TRẦN AN TOÀN

NGUYỄN MINH TUẤN
NGUYỄN VĂN HÀO
PHAN QUỐC TRƯỜNG
ĐỖ VŨ QUYỀN ANH

LÊ VĂN TUẤT
BÙI CÔNG HUYNH
BÙI THANH HẢI
PHẠM VĂN MẠNH

4. SCHEDULE
Construction Schedule of Brick work and Plaster work is attached in Appendix-1.

5. SPECIFIC STANDARD
Brick work and plastering works shall be carried out in accordance with the requirements of:
-

SMC MANUFACTURING (VIET NAM) FACTORY-PHASE 1 PROJECT Specification for Concrete works.

Current Vietnamese Construction Standards.

1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
11.
12.
13.

TCVN 7572 & 7570
TCXD 127:
TCVN 2682:2009
TCVN 5438:
TCVN 9202:
TCVN 6260: 2009
TCVN 4506:2013
TCVN 5992: 1995
TCVN 6492: 1999
TCVN 2671: 1978
TCVN 4560: 1988
TCVN 3118: 993
TCVN 9115: 2012

14. TCVN 1450: 2009
15. TCVN 1451: 1998
16. TCVN 6477: 2011

Test method & Acceptance for Coarse & Fine Aggregates.
1985 Fine sand for concrete and mortar, use of fine sand.
Specification for Portland Cement.
Cements – Terminology and Definitions.
2012 Cement for brick work and plastering work- Masonry Cement.
Portland Cement Mixtures – Technical Requirements.
Water used for mixing concrete & cement mortar.
Sampling water for testing.
Determination of pH of water.
Determination of organic contaminants in water.
Determination of total dissolved salt content in water.
Method for determination of concrete strength.
Assembled concrete and reinforced concrete structures Practice for erection -and acceptance.
Hollow burnt clay bricks.
Solid burnt clay solid bricks.
Concrete blocks.

17. TCVN 5593 : 1991

Building engineering work - Permissible tolerances in geometry

18. TCVN 9377-2:2012

Finishing work- Construction and acceptance- Part 2: Plastering work

19. TCVN 3121-1:2003

20 TCVN 3121-2:2003

Mortar for masonry - Test methods Part 1: Determination of
maximum
of aggregate.
Mortar for particle
masonrysize
- Test
methods Part 2: Sampling and

21 TCVN 4314: 2003

preparation
of sample
Mortar
for masonry
– Specifications

22 TCVN 6355-2:2009

Bricks – Test Methods Part 2: Determination of
compressive
strength – Part 3: Determination of bending
Bricks – Test Methods

23 TCVN 6355-3:2009
25 TCVN 4085:2011

strength
Bricks – Test Methods – Part 4: Determination of water

absorption
Masonry structures - Code for construction and acceptance

26 TCVN 4459:1987

Cement mortar mixing and use of cement mortar

24 TCVN 6355-4:2009

SMC-Factory No.1/MS-Brickwork

Page 9


CÔNG TY CỔ PHẦN XÂY LẮP THƯƠNG MẠI 2
Architects & Construction Service Corporation

6. SCOPE OF WORKS:
The brick walls of Factory No.1 include the perimeter walls of factory and the inside/outside walls of
Utilities area on Ground and 1st floors.
4500

E1
C

E

F
15000

F

F

60000

15000

D

F

15000

C

15000

B

4500

A
F

C

F

C

F

F

F

F

F

A1
3000

10000

10000

10000

10000

10000

10000

10000

10000

10000

10000

10000

10000

10000

10000

4000

140000

1A

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

15A

GROUND FLOOR WALL LAYOUT

12000

A1.

4500

E1

15000

E

15000

C

60000

15000

D

15000

B

C

4500

A
F

F

A1
3000

10000

10000

10000

10000

10000

10000

10000

10000

10000

10000

10000

10000

10000

10000

4000

140000

1A

1

2

3

4

5

6

7

8

9

10

1st FLOOR WALL LAYOUT

SMC-Factory No.1/MS-Brickwork

Page 10

11

12

13

14

15

15A


CÔNG TY CỔ PHẦN XÂY LẮP THƯƠNG MẠI 2
Architects & Construction Service Corporation
Based on the characteristics of walls, they are divided into the types as below:
Type MW + B80a & MW+DW 75i:
80mm thk. ,1.10m high.
WALL TYPE LEGEND
PLASTER
w/ CERAMIC TILE

Wg

1
5

1
2
.5

7
5
1
0
0

5
0
5
0
U
P
T
O
C
E
IL
IN
G

BRICK WALL
PLASTER w/PAINT

80
15 15

FFL

1A

LGS 75
FLASHING

250
500

1
2
.5

1
5
1
8
0

1
5

1
0
0
0

80
FFL 15 15

STEEL PANEL
W/POWDER COATING

CH

METAL
SIDING

FLASHING
BRICK WALL
PLASTER w/PAINT

1
2
0
0

U
P
T
O
B
E
A
M

1
0
0
0

80

FFL 15 15

BRICK WALL
PLASTER
W/PAINT

E1,

STEEL PARTIT ION

INSULATION
GLASS WOOL
(12.5 kg/ m³)t 50
w/ PAINT

U
P
T
O
C
E
IL
IN
G

METAL
SIDING
BIRDNET

805

LGS 75
GYPSUMBOARD 12.5THK
*UP TO SLAB

BRICK WALL
PLASTER w/PAINT

2
0
0

METAL
SIDING
FLASHING

GYPSUM BOARD 12.5 THK

ST 100

INSIDE

500

R.C LINTEL
80x200
PLASTER
w/ PAINT

2

0
0
1
1
0
0

80
FFL 15 15

8
0

PLASTER w/PAINT
MW+DW 75i

INSIDE

METAL
SIDING

(FIRE RATED WALL)
PLASTER w/PAINT

BRICK WALL

1
5

BRICK WALL

MW+B80c

FLASHING

BRICK WALL
PLASTER
W/PAINT

9
5

BRICK WALL

1
1
0
0

INSIDE

8
0 1
5
5
5

1
3
0

8
0

INSIDE

PLASTER w/PAINT

PLASTER w/TILE

PLASTER w/PAINT
MW+B80b

250
500

-

1
5

BRICK WALL

BRICK WALL
MW+B80a

R.C LINTEL
80x200 PLASTER
w/ PAINT

1
5

BRICK WALL+ PLASTER B80P1 BRICK WALL+ PLASTER B180P1 BRICK WALL+ PLASTER DW75i LGS 75+GYPSUM BOARD

PLASTER
w/ CERAMIC TILE

1
5

BRICK WALL+ TILE B80P0

PLASTER
w/ CERAMIC TILE

1
5

BRICK WALL+ TILE B80T2

PLASTER
w/ CERAMIC TILE
8
0

BRICK WALL+ TILE B80T1

8
0

1
0
5

B80T0

1
2
0

Mostly this type is applied for the perimeter walls
combined with metal siding or insulation walls:
o On Ground floor: mostly placed on grid A1,
15, 15A.
o On 1st Floor: mostly placed on grid A1, E1, 15,
& 15.

1
0
0
0

-

100

FFL

400

Wg

Wg

Wg

Type MW+B80b:
80 mm thk, full height from the ground floor to the
ceiling.
This type is mostly applied for the walls around the
stair cases between grid A-A1 & E-E1.

WALL TYPE LEGEND
BRIC K WALL+ TILE B80T2

BRIC K WALL+ TILE B80P0

BRICK WALL+ PLASTER B80P1 BRICK WALL+ PLASTER B180P1 BRIC K WALL+ PLASTER DW75i LGS 75+GYPSUM BOARD

PLASTER
w/ CERAMIC TIL E

PLASTER
w/ CERAMIC TIL E

PLASTER
w/ CERAMIC TILE

PLASTER
w/ CERAMIC TIL E

METAL
SID ING

2
0
0

250
500

250
500

Wg

-

BRICK WALL
PLASTER
W/PAINT

FFL 15 15

Wg

STEEL PARTITION

STEEL PANEL
W/POWDER COATING

CH

METAL
SID ING
LGS 75
BRIC K WALL
PLASTER w/PAINT
80
15 15

FFL

7
5
1
0
0

5
0
1
2
.5
5
0

ST 100
INSULATION
GLASS WOOL

(12.5 kg/ m³)t 50
w/ PAINT

1
2
.5

1
5

1
5
1
5

8
0

1
8
0

LGS 75
GYPSUMBOARD 12.5THK
*UP TO SLAB

BRICK WALL
PLASTER w/PAIN T

FLASHING

BRICK WALL
PLASTER w/PAINT
80

1
0
0
0

80

FFL 15 15

FLASHING

1
2
0
0

U
P
T
O
B
E
A
M

BRIC K WALL
PLASTER
W/PAINT

1
0
0
0

1
1
0
0

1
0
0
0

80

1
5

METAL
SID ING
BIRDNET
805

FFL 15 15

BRIC K WALL
PLASTER w/PAIN T

INSID E

500

GYPSUM BOARD 12.5 THK

U
P
T
O
C
E
IL
IN
G

IN SIDE
R.C LINTEL
METAL 80x200
SIDING PLASTER
w/ PAINT
FLASHING

FLASHING

(FIRE RATED WALL)

PLASTER w/PAINT

MW+DW 75i

U
P
T
O
C
E
IL
IN
G

IN SIDE

BRICK WALL

MW+B80c

2
0
0

INSID E
R.C LINTEL
80x200 PLASTER
w/ PAINT

BRICK WALL

PLASTER w/TILE

1
1
0
0

MW+B80b

PLASTER w/PAIN T

8
0 1
5
5
5
9
5

8
0

BRIC K WALL
PLASTER w/PAINT

BRICK WALL
MW+B80a

1
3

0

1
2
0

1
5

8
0

1
5

1
5

BRICK WALL+ TILE B80T1

8
0 1
5
1
0
5

B80T0

100

FFL

400
Wg

Wg

Type B80T0/T1/T2/P0/P1:
80 mm thk, full height from floor to the ceiling.

These wall types are mostly applied for the inside and dividing walls of the rooms in Office,
Utilities area on ground and 1st floor.
Depending on the finishing, these walls will be applied with plastering, painting or tiling.
WALL TYPE LEGEND

METAL
Type B180P1:
SIDING

80
15

15

BRICK WALL
PLASTER
W/PAINT

BIRDNET

Page 11

80
15

15

BRICK WALL
PLASTER
W/PAINT

805

FLASHING
BRICK WALL
PLASTER w/PAINT

1200

1000

1100

200

SMC-Factory No.1/MS-Brickwork

METAL
SIDING

FLASHING

1000

FLASHING

METAL
SIDING

UP TO BEAM

-

INSIDE

500

R.C LINTEL
80x200
PLASTER
w/ PAINT

15 180 15

PLA

80
15

15

INSULATION
GLASS WOOL
(12.5 kg/ m³)t 50
w/ PAINT

UP TO CEILING

INSIDE

R.C LINTEL
80x200 PLASTER
w/ PAINT

BRICK

(FIRE RATED WA
PLA

MW+DW 75i

METAL
SIDING

200

INSIDE

MW+B80c

LGS 75
FLASHING
BRICK WALL
PLASTER w/PAINT

1100

INSIDE

BRICK WALL
PLASTER w/PAINT

1000

MW+B80b

BRICK WALL

PLASTER w/TILE

PLASTER w/PAINT

MW+B80a

BRICK WALL

15 80 15

BRICK WALL

BRICK WALL+ PLASTER B180P1
PLASTER w/PAINT

PLASTER
w/ CERAMIC TILE

80 15
55

15 80 15

80 15
105
BRICK WALL

BRICK WALL+ PLASTER B80P1

PLASTER
w/ CERAMIC TILE

PLASTER
w/ CERAMIC TILE

80 15

PLASTER
w/ CERAMIC TILE

BRICK WALL+ TILE B80P0

95

BRICK WALL+ TILE B80T2

130

BRICK WALL+ TILE B80T1

120

B80T0

80
15

15


CÔNG TY CỔ PHẦN XÂY LẮP THƯƠNG MẠI 2
Architects & Construction Service Corporation
180 mm thk, full height from floor to the ceiling.
WALL TYPE LEGEND
BRICK WALL+ PLASTER B80P1 BRICK WALL+ PLASTER B180P1 BRICK WALL+ PLASTER DW75i LGS 75+GYPSUM BOARD

PLASTER
w/ CERAMIC TILE

PLASTER
w/ CERAMIC TILE

80
15 15

FFL

15

LGS 75

200

80
FFL 15 15

FLASHING
BRICK WALL
PLASTER w/PAINT

80
15 15

FFL

400
Wg

Wg

50

12.5

75
100

50

STEEL PARTITION

STEEL PANEL
W/POWDER COATING

CH

METAL
SIDING

250
500
Wg

12.5

15
180

15
80

INSULATION
GLASS WOOL
(12.5 kg/ m³)t 50
w/ PAINT

FLASHING
BRICK WALL
PLASTER w/PAINT

LGS 75
GYPSUMBOARD 12.5THK
*UP TO SLAB

PLASTER w/PAINT

U
PTOCE
ILIN
G

BRICK WALL
PLASTER
W/PAINT

1000

U
PTOBE
AM

1000

1000

BIRDNET

805

250
500

Page 12

METAL
SIDING

GYPSUM BOARD 12.5 THK

BRICK WALL

ST 100

INSIDE

500

R.C LINTEL
80x200
PLASTER
w/ PAINT

FLASHING

200

FLASHING

Wg

95

INSIDE
METAL
SIDING

(FIRE RATED WALL)
PLASTER w/PAINT

MW+DW 75i

U
PTOC
EILIN
G

INSIDE

BRICK WALL
PLASTER
W/PAINT

15

MW+B80c

METAL
SIDING

BRICK WALL
PLASTER w/PAINT

1200

INSIDE
R.C LINTEL
80x200 PLASTER
w/ PAINT

PLASTER w/PAINT

BRICK WALL

1100

MW+B80b

80
FFL 15 15

SMC-Factory No.1/MS-Brickwork

BRICK WALL
PLASTER w/TILE

PLASTER w/PAINT

MW+B80a

130

120

BRICK WALL

BRICK WALL

80 15
55

BRICK WALL+ TILE B80P0

PLASTER
w/ CERAMIC TILE
80 15

BRICK WALL+ TILE B80T2

PLASTER
w/ CERAMIC TILE

15 80 15

BRICK WALL+ TILE B80T1

80 15
105

B80T0

1100

This wall type is applied for the inside wall of Electric room
on Ground floor and the wall at connection corridor on 1 st
floor.

100

FFL


CÔNG TY CỔ PHẦN XÂY LẮP THƯƠNG MẠI 2
Architects & Construction Service Corporation

7. FLOW CHART AND DIRECTION OF WORK
The work sequence of Brick work and Plastering works are shown at the following flow chart.

1. RC Structures (Columns, slab, wall)
construction

Start of Brickwall

2. Installing wall ties from columns

3. Positioning wall by marking on slab, column

4. Preparing working scaffolding & platform

5. Preparing brick & mortar

6. Laying brickwork

6. Curing brickwork

7. Plastering brick wall surface

8. Curing plaster

End

SMC-Factory No.1/MS-Brickwork

Page 13

Covered by previous submittal


CÔNG TY CỔ PHẦN XÂY LẮP THƯƠNG MẠI 2
Architects & Construction Service Corporation

8. PREPARATION WORKS

A. Masonry Units
Clay brick to be used for brick wall have been approved by Consultant. Product data, certificate,
test report have been submitted and approved and no longer discussed in this method statement.
Dimension of solid brick and hollow brick are of 4x8x18 cm and 8x8x18 (cm) respectively. Half
brick unit will be created by saw cut.

HOLLOW BRICK

SOLID BRICK

All brick units shall be moistened by water 1- 2 hours before executing the construction.
C. Mock-ups
Before proceed construction of brick wall for Factory No.1, contractor will provide a sample
wall mock-up for all types of masonry units and plastering.
Build each sample wall panel mock-up on the site of full thickness and approximately 1.2m
high by 1.2m long, indicating the proposed range of color, texture and workmanship to be
expected in the completed work.
D. Scaffolding preparation:
+ Scaffolding will be installed aside the wall and be propped/braced securely.
+ Install platform and handrail on each story of scaffolding.
+ Provide the ladder on scaffolding from the ground to the working level.

9. CONSTRUCTION METHOD
9.1. Brick work:
1. Mortar & mixing mortar
Sand for mixed mortar shall be natural sand free from any deleterious materials such as
clay, flaky or elongated particles, mica, shale or other laminated materials, organic impurities,
iron pyrites. Sand shall be clean, hard, durable, crushed. It shall be thoroughly washed and all
dirt, shells etc. removed before use.
Water for brick work shall be clean and uncontaminated potable water from the city

main supply or any other approved source free from harmful matter.
Mortar type to be used shall be sand-cement mortar, class mark #100 (28days compressive
strength 10 Mpa) with its proportion: 1 part of cement: 3 part of sand in volume
The mortar proportion will be verified with the result of trial mix on site and testing prior to be
use.

SMC-Factory No.1/MS-Brickwork

Page 14


CÔNG TY CỔ PHẦN XÂY LẮP THƯƠNG MẠI 2
Architects & Construction Service Corporation
Mortar will be mixed by mixer which has capacity of 100 liters on site. Material of mortar will
be measured in containers with defined volume to maintain control and accuracy of proportion.
Mix by placing one-half the water and sand in operating mixer. Then add cement and
remainder of sand and water. Mix batch for not less than 3 minutes after all ingredients are in the
mixer.
Workability or consistency of mortar on the board shall be sufficiently wet to be worked under
the trowel. Water for tempering shall be available on the scaffolding at all time. Mortar which has
begun “set” two (2) hours after initial mixing will be discarded.

2. Wall ties (Dowel bars):
Dowel bars shall be installed at the spacing of 400mm for each skin of wall (one layer for
single wall and 2 layers for Double wall).
Wall ties are made of steel bars of D6, 400mm long (100mm embedded in concrete, 300 mm
exposed). The diameter of drilled holes in RC items for installation shall be 8.0mm
Wall ties will be inserted in the columns by drilling and applying of bonding agent (Sikadur
731). The diameter, depth of drilling as well as application of bonding agent will strictly follow the
instruction of manufacturer.

300

400

100

400

RC Column

400

400

D6@400

Filled with
Sikadur 731

With the stiffeners, what will be cast after laying brick wall, the wall ties will be placed in the
brick wall during construction. Then these wall ties will be embedded in the concrete of stiffeners.

3. Brick wall construction method:
a) Preparation:

SMC-Factory No.1/MS-Brickwork

Page 15

CÔNG TY CỔ PHẦN XÂY LẮP THƯƠNG MẠI 2
Architects & Construction Service Corporation
Clean top surface of concrete slab of dirt, projection and laitance before starting masonry
construction. Clean brick of all dust and dirt before laying.
Setting out by marking on slab and column the border lines of the wall with theodolite.
Spray water on sub-base before starting construction. Laying cement mortar 12mm thick as
damp-proof course on the slab.
b) Brick wall forming:
Laying brick course by course to build the wall. On every course of straight wall as well as at
intersection of them, their brick units will be staggered with the previous course to avoid
coincidence of vertical joint in brick block.
The first course and top course of brick walls shall be of solid bricks.
Mortar will be laid to form joints between courses of brick . The width of horizontal and
vertical joints shall be 10.0 mm wide and joint shall be fully filled with cement mortar and
compressed by steel trowel.
Horizontal joints shall be level and neatly pointed around as the work proceeds within
tolerance of ±10 mm / 5m. Vertical joints shall be plumb and in alignment from top to bottom
of wall within a tolerance of ±5 mm / 3m.
•

Single Skin Brick Walls
The bricks for single skin walls shall be hollow bricks and the wall thickness shall be of
80.0mm thick.

•

Double Skin Brick Walls
Bricklaying shall be 1 course of headers to 5 courses of stretchers in order.
The gap between skins shall be filled up with mortar before laying the headers.
The bricks for double skin brick walls shall be hollow bricks for stretchers and solid

bricks for headers, the wall thickness shall be 180.0mm thick with a 20mm gap
between two skins.

SMC-Factory No.1/MS-Brickwork

Page 16


CÔNG TY CỔ PHẦN XÂY LẮP THƯƠNG MẠI 2
Architects & Construction Service Corporation

LAYER 1st

SOLID BRICK
HOLLOW BRICK

LAYER 2nd

200 MM THICK HOLLOW BRICK WALL

LAYER 3rd, 4th, 5th, 6th

LAYER 7th

All work shall be carried up in a uniform manner with no one portion being raised more than 1
meter above another at one time. With the surface of walls which are subject to plastering or
tiling, the joints are to be raked out as the work proceeds to form key for the plaster.
Prior to resuming masonry work, remove loose units and loose mortar, clean exposed surfaces
of set masonry and wet units lightly.
c) Application:

Brick will be generally laid in running bond.
-

Form bed joints of thick layer of mortar slightly furrowed or battered.
Bevel or pyramid the bed mortar.
Form head joints by applying a full coat of mortar on the brick to be laid.
First layer will be solid brick.
Lay closure brick with mortar on each bedding surface of unit to be laid and units in place.
Place brick carefully without colliding to brick previous laid.
Strike flush joints. Tool vertical joints first then brush joints to remove all loose and excess
mortar.
Repeat this sequence for next course.
d) Cleaning, curing and protection:

-

Remove immediately concrete scum, mortar and grout stain on the wall during construction.

-

After the wall is constructed it should not be saturated with water for curing or any other
purposes.

SMC-Factory No.1/MS-Brickwork

Page 17


CÔNG TY CỔ PHẦN XÂY LẮP THƯƠNG MẠI 2
Architects & Construction Service Corporation

-

When or where the atmosphere is dry, the masonry wall shall have its surface dampened with
water during a curing period for the mortar of 3 (Three) days.

-

Protect completed work:
(a) Keep completed walls clean and protect from staining.
(b) Cover top of walls with waterproof covering or membrane to prevent rain or
mortar stain.
(c) Do not apply uniform loads for at least 12 hours or concentrated loads for at least
72 hours after masonry is constructed.

4. RC lintel & siffener
On the wall, there will be some openings to fix the door or window later. Dimensions of these
openings will be set by adding the dimensions of door (or window) a tolerance of about 2,5 cm
for installation.
Openings on brick wall will be formed and supported by Reinforced concrete stiffener and
lintel around its boundary.
Stiffener beams and columns shall also be provided to wall for each 15 m2:



Where the length of wall is longer than 5.0m (Stiffener columns)
Where the height of wall is higher than 3.0m (Stiffener beams)

Typical section of stiffener (columns and beams) in Factory No.1 building will be:


For single skin: Dimensions: 8 x 20 (cm), reinforced with main bar of 2D12 and stirrup
of D6@200.



For double skin: Dimensions: 18 x 20 (cm), reinforced with main bar of 4D12 and
stirrup of D6@200.



Concrete for R.C stiffeners shall be site mixed and of the grade of B15 .The 28 days
compressive strength of concrete shall not be less than 20 Mpa.



All RC stiffener and lintel beams shall be cast after laying the wall with brickwork.

TYPICAL STIFFENER SECTION
200
200

4D12

180

80

2D12
D6@200

SINGLE SKIN WALL

SMC-Factory No.1/MS-Brickwork

D6@200

DOUBLE SKIN WALL

Page 18


CÔNG TY CỔ PHẦN XÂY LẮP THƯƠNG MẠI 2
Architects & Construction Service Corporation

5. Work sequence:
 Step 1: Cleaning
- All rubbish, hardened mortar & concrete stuck on slab surface must be removed before work
begins.
 Step 2: Line making for brick wall
- Base on marked gridlines checked by Kajima’s surveyor ,ACSC surveyor will carry out line
marking work for brick walls as below:

-

- The lines of wall sides lines also to be marked on RC column surface by using laser machine.
All offset lines will be checked by surveyor and inspection by KOA’s engineer. ACSC shall provide the
protection to floor surface and marked lines on floor for other finishing works by installing PVC
sheets to floor surface.
 Step 3: Wall ties installation & roughening concrete surface
- After line marking inspected and accepted by Kajima, carry out the drilling work for dowel bar

installation.
- Drill holes of 8mm diameter with depth of 10cm ,then remove all drill dust inside drilled holes
with air compressor
- Insert dowel bars (ϕ6) into concrete column by Sikadur 731
- Mix 2 components of Sikadur 731 & apply it into drilled holes
- Install dowel bars into hole at depth of 10cm of the end without bituminous paint
- Cure for 24 hours
- Roughening concrete surface by hammer.

-

Step 4: Brick Laying
Brick must be clean & wet with water before laying.
First layer of brick to be laid for adjustment of level with one layer of solid brick.
Lay brick layer by layer with join width 8-15mm thick.
The height of brick wall for each stage allowed is:
+ Single brick wall: 1.0m to 1.50
+ Double brick wall: 1.50m to 2.0m

SMC-Factory No.1/MS-Brickwork

Page 19


CÔNG TY CỔ PHẦN XÂY LẮP THƯƠNG MẠI 2
Architects & Construction Service Corporation

-

Where there is not enough space for laying whole width of brick, the half- brick or cut brick

will be used at length to fit the actual space. Breaking brick by trowel, hammer not allowed.
Fill in joint with mortar & joint must be full of mortar
After laid, mortar joint must be checked for thickness, crack, looseness…

 Step 5: Preparation and casting stiffener columns & beams
- During laying of brick wall, the space for stiffeners will be formed.
- Install the steel rebar connecting to the starter bars installed during casting ground
beams/slab.
- Fix the rebar in the right position with spacers and tie wires.
- Apply the formwork both sides of wall and fix them securely.
- Casting concrete grade B15 and vibrate well.
- Apply the same method with the lintels on the top of laid walls.
- Dimension of stiffeners, lintels and their reinforcement will comply with the typical design in
shop drawings.
 Step 6: Curing
SMC-Factory No.1/MS-Brickwork

Page 20


CÔNG TY CỔ PHẦN XÂY LẮP THƯƠNG MẠI 2
Architects & Construction Service Corporation
-

Curing period : within 3 days after laid
Curing materials: water spraying

 Step 7: Cleaning
Masonry faces shall be washed and cleaned free from mortar and cement stains after finish
daily work.

- Washing and cleaning shall be done using fresh water and fiber brushes or wooden scrapers
- Metal implements and excessive water shall not be permitted.

9.2. Plastering work:
1 Mortar & mixing mortar
Sand for mixed mortar shall be natural sand free from any deleterious materials such as
clay, flaky or elongated particles, mica, shale or other laminated materials, organic impurities,
iron pyrites. Sand shall be clean, hard, durable, crushed. It shall be thoroughly washed and all
dirt, shells etc. removed before use. Size modulus Ms of sand for mortar mixing to be used
for render and plastering works shall be from 1.5 to 2.0.
Mortar type to be used shall be sand-cement mortar, class mark #75 (28days compressive
strength 7.5 Mpa) with its proportion 1 part of cement: 4 parts of sand.
Mixed mortar must have stand a Pot life of hour, exceeds must be rejected
The mortar proportion will be verified with the result of trial mix and testing before
application.
Mortar will be mixed by mixer which has capacity of 100 liters on site. Material of mortar will
be measured in containers with defined volume to maintain control and accuracy of proportion.
Mix by placing one-half the water and sand in operating mixer. Then add cement and
remainder of sand and water. Mix batch for not less than 3 minutes after all ingredients are in the
mixer.
Workability or consistency of mortar on the board shall be sufficiently wet to be worked under
the trowel. Water for tempering shall be available on the scaffolding at all time. Mortar which has
begun “set” one (1) hour after initial mixing shall be discarded.

2 Construction method:
a.

Brick wall & RC member surface preparation

With Brick wall surface

• Brick wall after laid & stiffener column & beams casted must be cured for 3 days &
inspected by Kajima.
• The brick wall surface must be generally cleaned up, free from the dirt substances
by water jet that be affected to cohesion of layers of plaster such as dust, grease,
oil, mortar laitance, excess mortar…
• The joints between bricks must be checked carefully for crack.
• The joints must be kept free from the dirt by brush.
• The excess edge of steel wire mesh exposed should be cut out or bended inward.
• The M&E installed conduits in the brick wall must be filled with non-shrink grout or
mortar.
• Corner beads shall be set and secured at ends with mortar.
• The horizontal corner beads shall be installed perfectly level and vertical corner beads
shall be plumb and straight, taking into account proper plaster thickness.
• Plaster stop beads shall be installed where indicated on the shop drawings or as required
SMC-Factory No.1/MS-Brickwork

Page 21


CÔNG TY CỔ PHẦN XÂY LẮP THƯƠNG MẠI 2
Architects & Construction Service Corporation
•
•
•

to stop plaster surfaces against a dissimilar material to form a neat and definite joint.
The plaster stop beads shall be of correct dimensions and shall be installed to correct
leveled, shall be plumb, square and true to line to provide the full thickness of plaster
specified.
Leveling peg must be provided. Line markings must clear horizontally & vertically to

achieve plumbness & levelness each 2m.
The surface of brick wall must be water-sprayed to keep damp avoiding the bricks to
absorb the water of plaster mortar.

With RC members surface:
•
•
•
•
•
•
•
•
•
•
•
•
•

The RC member surface must be checked carefully to clarify the crack, honeycombs
or tie rods holes.
For the cracks & honeycomb must be investigated to find out the reason and treat it
with the approved method.
For the tie rod holes at the external RC elements must be plugged by suitable wall
plug for water tightness avoiding (The water plugging sample will be submitted
later) the penetration of water.
The ceiling & RC members surface must be kept free from concrete laitance, excess
concrete, grease…by water jet & steel brush
For mortar laitance, blinder, deformation or convex surface must be taken out for
flat by handy chisel or steel brush.

Taking out all timber, concrete debris, rivet, nail to have ready to receive plastering
surface.
Corner beads shall be set and secured at ends with mortar.
The horizontal corner beads shall be installed perfectly level and vertical corner beads
shall be plumb and straight, taking into account proper plaster thickness.
All concrete defects must be repaired with approved MS & materials and to be inspected
& approved by Kajima
Plaster stop beads shall be installed where indicated on the shop drawings or as required
to stop plaster surfaces against a dissimilar material to form a neat and definite joint.
The plaster stop beads shall be of correct dimensions and shall be installed to correct
leveled, shall be plumb, square and true to line to provide the full thickness of plaster
specified
Leveling peg must be provided. Line markings must clear horizontally & vertically to
achieve plumbness & levelness.
Cleaning up the M&E utility point, repair it if defect occurred. The holes or cracks
around the M&E services must be evaluated and treat it by suitable non shrink
grout or mortar.

b. Bonding coat & spatter dash
•

The surface of RC members must be brushed with stiff wire brush to remove all
traces of loose concrete. All concrete surfaces to be saturated with water before
applying slurry.

•

Slurry to be mixed with the proportion by volume:
Cement: Sand: Liquid= 1: 1: 1
Liquid: 1 part of Sika Latex + 1 part Water

•

Cement & sand shall be properly mixed until attaining uniform color, and correct
amount of liquid (water & SIKA Latex) will be added to achieve workability.

SMC-Factory No.1/MS-Brickwork

Page 22


CÔNG TY CỔ PHẦN XÂY LẮP THƯƠNG MẠI 2
Architects & Construction Service Corporation

c. Plaster lines & plan marking
Internal wall
•

From 200mm offset lines marked for brickwork, use laser machine for installation of
level pegs at interval of 1.8m for both ways( 2 directions)

•

The first finish plaster line of wall will be ink marked on the floor, this line will be
offset out to 0.5 to 1m from real position of its (Root of wall) to avoid the loss or
hiding by mortar during plastering.

•

Laser machines/plumb will be used to position the second plaster line on the top of

wall.

Exterior wall
•

From 200mm offset lines marked from the wall, use plumb & Theodolite for
installation of level pegs at interval of 1.8m for both ways( 2 directions)

•

The first finish plaster line of wall will be ink marked on the floor, this line will be
offset out to 0.5 to 1m from real position of its (Root of wall) to avoid the loss or
hiding by mortar during plastering.

•

Laser plumb/laser machines will be used to position the second plaster line on the
top of wall.

d. Wire mesh reinforcement at connections of RC structures and brick wall
•

The joint between the concrete members & brick wall such as lintels, RC column, and
around door, window openings…200mm strip of wire mesh be installed to cover the joint
prior to plastering, the wire mesh to be fixed by nails not to exceed 300mm intervals, the
head of nails must be treated with the bitumen before applying plaster (external wall)

•

At the joint of stiffener, intermediate column (250mm or under) and brick wall,

400mm strip of wire mesh shall be installed

SMC-Factory No.1/MS-Brickwork

Page 23


CÔNG TY CỔ PHẦN XÂY LẮP THƯƠNG MẠI 2
Architects & Construction Service Corporation

•

The joint around M&E points utility, electric wire duct on the brick wall must be also
covered by wire mesh with 200mm.

e. Plastering
Internal wall
•

Spraying water into brick wall surface to keep wetted prior to plastering

•

The plastering work should be carried out from up to down, from the middle to
corner.

•

The mortar will be applied higher than the pegs level of plaster plan, and spread out
and make flat by float & aluminum straight ruler, the thickness of plaster internal is

1.5cm. First line of plaster to be applied (Refer to figure 04)

SMC-Factory No.1/MS-Brickwork

Page 24


CÔNG TY CỔ PHẦN XÂY LẮP THƯƠNG MẠI 2
Architects & Construction Service Corporation

•

Remove level pegs right after finish trowel of surface & patch up removed level peg areas

•

During the plastering work, the 3 or 5m straight bar must be used to control the flatness.

•

In all corner the plumb of corner beads must prevail

External wall
•

Spraying water into brick wall surface to keep wetted prior to plastering

•

For groove area stiff timber will be used to assure the correct dimension &

straightness of the groove.

•

The plastering work should be carried out from up to down, from the middle to
corner.

•

The mortar will be applied higher than the pegs level of plaster plan, and spread out
and make flat by float & aluminum straight ruler, the thickness of plaster internal is
1.5cm. First line of plaster to be applied.

f. Curing for plaster wall
•
•
•

Each mortar layer must be cured with water for three (3) days.
Curing material : burlaps and PVC sheets, water spraying.
Use chalk to mark the date of plastered wall on plaster surface for monitoring & curing

6. Work sequence:
-

a/ Preparation:
Wall surface shall be prepared to be free of all dirt, loose material, grease or oil and well
damped before applying the plaster coat.
Scaffolding shall be installed adequately to meet the requirement of mason operation.
Cover the floor with plastic sheet or similar material to protect the floor surface.

b/ Setting out and marking:

-

Using theodolite to set up the location mesh for thickness and flatness in the vertical and
horizontal direction of true plane of plastering at spacing of around 2.5x2.5 m.
c/ Installation of PVC Plaster Bead:

-

PVC corner beads shall be installed to exposed outer wall corners, internal door openings up to
the level of 2.20m from the floor finish level. PVC beads shall be fixed to brick walls and concrete
by mortar at interval 400mm.
d/ Installation mesh:
-

Install meshes at the connections of RC structures (stiffeners, lintels) and on the M&E
conduits.
Apply band of Ø1mm steel mesh 5x5mm, 120 mm wide at any joint on flush surface
between brick wall and RC columns or stiffeners to prevent crack of shrinkage. Any groove

SMC-Factory No.1/MS-Brickwork

Page 25