Significance and Use

Since the potential for expansion, under conditions of controlled restraint, of concrete made with shrinkage-compensating cement cannot always be satisfactorily predicted from tests of mortars made in accordance with Test Method C 806 , a need has been recognized for a test method in which concrete specimens are tested.

This test method can also be adapted readily to studies of expansion involving degrees of restraint, comparisons of cements, effects of cement contents, mixture proportions, schedules, or environmental treatments that differ from the standard procedures prescribed by this test method.

1. Scope

1.1 This test method covers the determination of the expansion of concrete made with shrinkage-compensating cement.

1.2 The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems may result in non-conformance with the standard.

1.3 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. ( Warning Fresh hydraulic cementitious mixtures are caustic and may cause chemical burns to skin and tissue upon prolonged exposure. )

2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.

ASTM Standards

C125 Terminology Relating to Concrete and Concrete Aggregates

C192/C192M Practice for Making and Curing Concrete Test Specimens in the Laboratory

C219 Terminology Relating to Hydraulic Cement

C490 Practice for Use of Apparatus for the Determination of Length Change of Hardened Cement Paste, Mortar, and Concrete

C670 Practice for Preparing Precision and Bias Statements for Test Methods for Construction Materials

C806 Test Method for Restrained Expansion of Expansive Cement Mortar

C845 Specification for Expansive Hydraulic Cement

ACI Standards and Committee Reports

Keywords

expansion; restrained expansion; shrinkage compensating concrete; Concrete construction materials/applications; Concrete test specimens; Cylindrical concrete specimens; Expansion--concrete materials/applications;

ICS Code

ICS Number Code 91.100.30 (Concrete and concrete products)

DOI: 10.1520/C0878_C0878M-09

ASTM International is a member of CrossRef.

ASTM C878 / C878M