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The study of mass loss of cement systems under compression

Abstract

The study of mass loss of cement systems under compression

Galkin Yu.Yu., Udodov S.A.

Incoming article date: 14.03.2017

The article deals with the effect of force compression of cement stone on the magnitude of mass loss in differential thermal analysis. Theoretical aspects concerning the issues of qualitative change in the state of the liquid phase in a cement stone under load are discussed. Changes in adsorption and chemically bound water were studied by varying the water-cement ratio, the sample size, and the type of cement used. The value of the applied load was taken as the experiment constant.The data obtained show an increase in the total mass loss in compressed samples in 87% of the experiments. This fact may indicate a qualitative change in the form of water bonds in the structure, as well as take into account the influence of the factors under consideration on this process.

Keywords: Cement stone, compressive stresses, early loading, adsorption-bound water, chemically bound water, mass loss, differential-thermal analysis, water-cement ratio, sample size, alumina cement, Portland cement