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

Importancia y uso:

4.1 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.

4.2 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.

Subcomité:

C09.68

Referida por:

C1107_C1107M-20, C1090_C1090M-23, C1107_C1107M-20

Volúmen:

04.02

Número ICS:

91.100.10 (Cement. Gypsum. Lime. Mortar)

Palabras clave:

cementitious mixtures; change in height; concrete; expansion; grout height change; mortar; paste; shrinkage ;