ASTM D159 − 27 Specification for Crushed Stone and Crushed Slag for Bituminous Macadame Base and Surface Courses of Pavements (Withdrawn 1938)

STANDARD SPECIFICATIONS

FOR

HROKEN SLAG FOR BITUMINOUS MACADAM WEARING

. COURSE1

Serial Designation: D 159-27

These spt!cifications are issued under the fixed designation D 159; the final
m\mbcr indicates the year of original adoption as standard or, in the case ol revision,
the year of last rt."Vision.

Scope. Issmm AS TnNTATIVH, 1923; Aoonau IN A•tuNDE.D Fmnr, 1927.

General 1. These specifications cover t to t-in., li to ~-in., and 2! to
Character· 1~-in. or 3! to 2l-in. size slag to be used in the construction of a bitu-

i~tics. minous macadam wearing course in which the bituminous material is
applied by the penetration method. The maximum si1.e of 3~ in.
Wei&ht. specified for the wearing course is on the basis of a course 2~ to 3! in.
in thic.kness after consolidation. TJ1e Ii to ~-in. size should be used
t to t.o fill the surface voids after the:: first application of bituminous
material, aud the ~ to ~-in. size after the application of the seal coat.
~-in. Sit.to.
2. The broken slag shall be air-cooled blast-furnace slag and shall
consist of angular fragments reasonably uniform in density and
quality, and reasonably free from thin, elongaled or glassy pieces,
dirt or other objectionable matter.

.3. The weight per cubic foot or each si:.~c specified shall not he

less than 70 lb.
4. The 1to i-in. size is that portion of the product of the crusher,

which, when tested by means of laboratory screens, shall meet the
following req1.1ireme~ts:

Passing l-in. screen.. . . . . . . . . . . . .... . ..... not less than 95 per cent
Passing i·in. screen...... , .. . ...... .. . . ..... . ... . .25 to 75 "
Passing t-in. screen .................. . .. . not more than 1.5

1} to 5. The It to i-in. size is that portion of the pro which, when tested by means of laboratory screens, shall meet the
l-in. Size. following req1.1irements.

Pnssing li·in. screen . . .......... . ........ not less than 95 per cent
Passing 1-io. screen....... . ...... .. ............•. 25 to 75 "
J>assing f-in. screen ........... . .... . .. ~ .. not more than 15 ''

1 Under the: st.andat•ttita lton proeedurc: o f the Societ1·. th~se ~~ci lic:nttons Ate under the jurisdic-

tion ol the A.s:r.M. Cnmntittce D-1 on Rood a nd l'a •int~ Matcrinls.

(458)

SERIAL DESIGNATION: D 159-27 -- 459

6. The 2t to Ii-in. and 3! to 2!-in. sizes are that portion of the 2! to If-in.
product of the crusher, which, when tested by means of laboratory ~¥~:\~~e.

screens, shall conform to one of the following requirements:

Passing 2!-in. screen ....... _.............. not less than 95 per cent
Total passing H-in. screen ....... _... _.... not more than. 15 "

Passing 3i-in. screen ... _... _.............. not less than 95 per cent
Total passing 2!-in. screen ................ not more than 15 "

NoTE.-One of the above alternate sizes for coarse slag should be specified to
best suit the local and service conditions.

7. Weight per Cubic Foot.-The weight per cubic foot shall be Methods of
Testing.
determined in accordance with the Standard Method of Test for
Sampling.
Unit Weight of Aggregate for Concrete (Serial Designation: C 29)

of the American Society for Testing Materials.l

8. The method of sampling shall conform to the Standard

Methods of Sampling Stone, Slag, Gravel, Sand and Stone Block for

Use as Highway Materials, Including Some Material Survey Methods

(Serial Designation: D 75) of the American Society for Testing

Materials.2 ·

1 Seep. 120.

2 Seep. 473.