Standard Specification for
Silica Fume Used in Cementitious Mixtures
AASHTO Designation:M 307-07
ASTM Designation:C 1240-05
SCOPE
This specification covers silica fume for use in concrete and other systems containing hydraulic cement.
1.2.In the cases of slurried or densified silica fume, perform the tests on the raw silica fume from which these products have been made.
The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only.
The following safety hazards caveat pertains only to the test methods portions, Section 10, of this specification:
This standard does not purport to addressall of the safetyconcerns, if any, associated with its use.
It is the responsibility of the user of this standard to establish appropriate safetyand health practices and to determine the applicability of regulatory
limitationsprior to use. Read the material safety data sheets for materials used.
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