Logo

ASTM C827-01a(2005)

Current Reaffirmation

Standard Test Method for Change in Height at Early Ages of Cylindrical Specimens of Cementitious Mixtures

$73.00

$73.00

$131.40


Sub Total (1 Item(s))

$ 0.00

Estimated Shipping

$ 0.00

Total (Pre-Tax)

$ 0.00


...

1.1 This test method covers the determination of change in height of cylindrical specimens from the time of molding until the mixture is hard.

1.2 This test method covers height change measurements at early ages for cementitious mixtures of paste, grout, mortar, and concrete.

1.3 This test method is intended for determination of changes in height that occur from the time of placement until the specimen is fully hard. These include shrinkage or expansion due to hydration, settlement, evaporation, and other physical and chemical effects.

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

1.5 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.

1.6 The text of this test method references notes and footnotes that provide explanatory information. These notes and footnotes shall not be considered as requirements of the test method.


This test method provides a means for comparing the relative shrinkage or expansion of cementitious mixtures. It is particularly applicable to grouting, patching, and form-filling operations where the objective is to completely fill a cavity or other defined space with a freshly mixed cementitious mixture that will continue to fill the same space at time of hardening. It would be appropriate to use this test method as a basis for prescribing mixtures having restricted or specified volume change before the mixture becomes hard.

This test method can be used for research purposes to provide information on volume changes taking place in cementitious mixtures between the time just after mixing and the time of hardening. However, the specimen used in this test method is not completely unrestrained so that the measurements are primarily useful for comparative purposes rather than as absolute values. Further, the degree of restraint to which the specimen is subjected varies with the viscosity and degree of hardening of the mixture.


FIG. 1 Apparatus for Early Change in Height

SDO ASTM: ASTM International
Document Number C827
Publication Date July 1, 2005
Language en - English
Page Count 4
Revision Level 01a(2005)
Supercedes
Committee C09.68
Publish Date Document Id Type View
Nov. 10, 2001 C0827-01A Revision
Nov. 10, 2001 C0827-01 Revision
Jan. 1, 1997 C0827-95AR97E01 Revision
July 1, 2005 C0827-01AR05 Reaffirmation
Nov. 10, 2001 C0827-95AR97 Reaffirmation