Specification for Emulsified Asphalt (Withdrawn 1949)

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ASTM D631-46 - Specification for Emulsified Asphalt (Withdrawn 1949)
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Standard Specifications for
SLOW-SETTING EMULSIFIED ASPHALT'
FOR FINE AGGREGATE MIXES
A.S.T.M. Designation: D 631-46
2
ADOPTED, 1943; REVISED, 1946.
This Standard of the American Society for Testing Materials is issued under
the fixed designation D 631; the final number indicates the year of original
adoption as standard or, in the case of revision, the year of last revision.
Modified miscibility ,;~th
0
Scope
water .-- . . . . difference of asphalt residue
not more than 4.5 per cent
Cement mixing test not more than 2.0 per cent
1. These specifications cover a slow­
setting emulsified asphalt for fine aggre­
• If the sample of emulsified asphalt being tested fails
to conform to this requirement for modified miscibility,
gate mixes in which a substantial quan­
the sample shall be tested lor 5-day settlement and for
miscibility, and if the numerical difference between the
tity of aggregate ·passes a h-in. sieve
average percentages of asphaltic residue in the 5-day
setllement test is less than 3, and if the standard misci­
and a .portion may pass a No. 200 (74-
bility test shows no appreciable coagulation in 2 hr., then
micron) sieve. the emulsified asphalt shall be considered as conforming
to these specifications and shall be accepted.
(c) Residue.-Tbe residue obtained
Properties and Tests
from distillation shall conform to the
2. (a) Emulsified asphalt shall be
following requirements:
homogeneous. It shall show no separa­
Penetration at 25 C. (77 F.),
100 g., 5 sec . 100 to 200
tion of asphalt after thorough mixing,
Soluble in carbon disulfide:
Petroleum asphalts . not less than 97.0 per cent
within 30 days after delivery, provided
Native asphalts . . not less than 95 per cent
separation bas not been caused by Ash . . . not more than 2 per cent
Ductility at 25 C. (77 F.) . not less than 60 em.
freezing.
Specific gravi ty at 25 C.
(77 F.) . not less than 1.00
(b) Emu
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