Hardening of sand cement with different water-cement ratio in thermal gradient conditions

Abstract

The paper focuses on studying the strength properties of a sand cement rod with the different water-cement (W/C) ratio, which hardens for 2 days under thermal gradient conditions. It is shown that the strength accumulation along the rod axis occurs rather non-monotonically. Depending on the distance, the yield stress and the shear modulus of sand cement rods with the different W/C ratio increase by 1.1–1.2 times. The ELCUT Pro modeling shows that in the investigated temperature range and during the curing process, the thermal stress level is insignificant in comparison with the experimentally values of the yield stress.