低温养护下石粉含量对混凝土强度影响的试验研究

Experimental Study on Influence of Stone Powder Content on Concrete Strength under Low Temperature Curing

将不同含量的石粉掺入到混凝土中,研究低温水养条件下,石粉含量对混凝土力学性能和工作性能的影响。试验结果表明:混凝土中适量的石粉可以起到晶核效应、填充效应和化学作用等,有利于混凝土强度提高,能够改善混凝土工作性能,但其掺入量存在一个最优值,超过之后会对混凝土强度造成不利影响。

The effect of the content of stone powder on the mechanical properties and working properties of concrete was studied.The test results show that the appropriate amount of stone powder in concrete can play a role of crystal core effect,filling effect and chemical action,which is conducive to the improvement of concrete strength and concrete performance,but there is an optimal value of its incorporation,beyond which the concrete strength will be adversely affected.