低温下砂浆的抗压强度试验研究

为研究低温下含气量对水泥砂浆抗压强度的影响,通过抗压强度试验测定了不同含气量下水泥砂浆的抗压强度。试验结果表明:砂浆的抗压强度随着龄期的增长而增大,且在同龄期时,低温养护下砂浆的抗压强度均低于标养下砂浆的抗压强度;随着含气量的增大,砂浆的抗压强度逐渐减小,标养和低温养护下A-1和A-2砂浆的抗压强度基本相同,可见含气量在一定范围内,砂浆的抗压强度变化不大。

For the study of low temperature air content on the compressive strength of cement mortars, the influence of compressive strength tests under different air content determination of the compressive strength of cement mortar.The test results show that the compressive strength of mortar increases as the growth of the age, and in the same period, low temperature curing under compressive strength of mortar is lower than the standard raise the compressive strength of mortar;With the increase of air content, compressive strength of cement mortar decreased gTadually, the raising and under the low temperature curing and A -1 and A-2 have the same compressive strength of mortar, visible air content within A certain range, the compressive strength of mortar.