ASTM C1240 − 14 Standard Specification for Silica Fume Used in Cementitious Mixtures

ASTM C1240 − 14 Standard Specification for Silica Fume Used in Cementitious Mixtures

Scope
1.1 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.

1.3 The units stated in SI are to be regarded as the standard.

1.4 The following safety hazards caveat pertains only to the test methods portions, Sections 10 – 19 of this specification-: This standard does not purport to address all of the safety concerns, if any, associated with its use.

It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.

Read the material safety data sheets for materials used.

ASTM C1240 − 14 Standard Specification for Silica Fume Used in Cementitious Mixtures

Sampling
7.1 When the purchaser desires that the silica fume be sampled and tested to verify compliance with this

specification, perform the sampling and testing in accordance with Practice C183, modified as described in 7.3.

NOTE 1—Exercise caution in the interpretation of Practice C183, since there is a difference between the continuous manufacture of hydraulic cement and the generation and collection of silica fume.

To a great extent, storage is dictated by the design of the silica-fume collection system.

The design of silica-fume collection systems may not have provided for sampling points and practices.