APPROVED AS AMERICAN STANDARD BY THE AMERICAN STANDARDS ASSOCIATION ASA NO.: A37.74-1951 UDC 625.82:691.5 Standard S pecijications for MATERIALS FOR CEMENT GROUT FILLER FOR BRICK AND STO
Trang 1AMERICAN SOCIETY FOR TESTING MATERIALS
1916 RACE ST., PHILADELPHIA 3, PA
Reprinted from Copyrighted Book of A';TM Standards, Part 4
APPROVED AS AMERICAN STANDARD
BY THE AMERICAN STANDARDS ASSOCIATION
ASA NO.: A37.74-1951 UDC 625.82:691.5
Standard S pecijications for
MATERIALS FOR CEMENT GROUT FILLER FOR BRICK
AND STONE BLOCK PAVEMENT1
ASTM Designation: D 57 - 20
ADOPTED, 1920.2
This Standard of the American Society for Testing Materials is issued under
the fixed designation D 57; the final number indicates the year of original
adoption as standard or, in the case of revision, the year of last revision
NoTE-These specifications were editorially revised and rearranged in 1939
Scope
1 These specifications cover the
ma-terials (sand, portland cement, and
water) for use in cement grout filler
for brick and stone block pavements
SAND General Characteristics
2 The sand shall consist of clean,
hard, durable stone particles, preferably
siliceous, free from lumps of clay and
objectionable foreign matter
Grading
3 (a) The sand shall be well graded
from coarse to fine and when tested by
I Under the standardization procedure of the
Society, these specifications are under the
juris-diction of the ASTM Committee D-4 on Road
and Paving Materials
2 Prior to adoption as standard these
specifi-cations were published as tentative from 1919
to 1920
means of laboratory sieves shall conform
to the following requirements:
Sieve
No 10 (2000-micron) •
No 20 (840-micron) not less than ••
No 200 (74-micron) not more than
Percentage Passing
100
80
5
(b) The sieve analysis of the sand shall be made in accordance with the Method of Test for Sieve Analysis of Fine and Coarse Aggregates (ASTM Designation: C 136).3
Mortar Strength
4 (a) The sand shall be mixed with portland cement conforming to the re-quirements for type I of the Specifica-tions for Portland Cement (ASTM Designation: C 150),3 in the proportion
of 1 part of cement to 3 parts of sand,
3 Appears in this publication, see Contents
in Numeric Sequence of ASTM Designations at front of book
754
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Trang 2SPECIFICATIONS FOR CEMENT GROUT FILLER (D 57- 20) 755
by weight, according to the standard
method of making 1:3 mortar briquets
The resulting mortar at the age of 7 and
28 days shall have a tensile strength of at
least 75 per cent of that developed in the
same time by mortar of the same
con-sistency, made of 1 part of the same
ce-ment and 3 parts of Ottawa sand
(b) Preliminary acceptance samples
shall be subjected to mortar strength
tests at both 7 days and 28 days, and
acceptance based thereon Samples
tested during the progress of the work
will be accepted on the basis of the 7-day
test
(c) The tests for mortar strength shall
be made in accordance with the Method
of Test for Tensile Strength of Hydraulic
Cement Mortars (ASTM Designation:
c 190).3
NOTE.- The portland cement used in testing
the proposed sand should preferably be that
used or to be used in the work
Sampling
5 The sand shall be sampled for
testing at the source of supply, if
re-quired Samples shall also be taken for testing from time to time, at the place
of use prior to and during the laying of the pavement, whenever desired by the engineer
Inspection
6 The sand shall be subject to inspec-tion after delivery at the place of use, prior to and during the laying of the pavement
PoRTLAND CEMENT
Cement
7 Portland cement for use in cement grout filler shall conform to the re-quirements for type I of the Specifica-tions for Portland Cement (ASTM Designation: C 150).3
WATER
Water
8 The water used shall be clean and free from harmful amounts of oil, acid, alkali, organic, or vegetable matter
1ll-8