渗透结晶型材料对混凝土抗压强度影响试验研究

Experimental Research on the Influence of Permeable Crystalline Materials on Concrete Compressive Strength

水泥基渗透结晶型材料能够改善混凝土材料的渗透性、密实性,进而有效提升其耐久性能,而该材料对混凝土强度影响的研究相对较少。本试验采用不同设计强度配制4种混凝土,通过对比试验研究水泥基渗透结晶型材料对混凝土抗压强度的影响。结果表明,喷涂水泥基渗透结晶型材料7 d龄期对混凝土强度增强作用明显,平均增强率达3.95%;喷涂水泥基渗透结晶型材料对不同设计强度的混凝土强度影响存在明显差异,对于设计强度C30混凝土增强效果最为明显,平均增强1.66 MPa。将水泥基渗透结晶型材料应用于工程可提高混凝土强度,且施工方便、环保无污染,具有良好的应用前景。

The cement-based permeable crystalline materials can improve the permeability and compactness of concrete materials,thereby effectively improving their durability,but there is little research on the effect of this material on concrete strength. In this experiment, four types of concrete were prepared with different design strengths. Comparative experiments were conducted to study the effect of the cementitious capillary crystalline waterproofing materials on the compressive strength of concrete. The results show that spraying cement-based permeable crystalline materials have an obvious effect on the strength of concrete at the age of 7 d,and the average enhancement rate is up to 3. 95%;the effect of spraying cement-based permeable crystalline materials on the strength of concrete with different design strengths is significantly different,for concrete with a design strength of C30,the enhancement effect is the most obvious,with an average enhancement of 1. 66 MPa. The application of cement-based permeable crystalline materials in engineering can improve the strength of concrete,is convenient for construction,environmentally friendly and pollution-free,and has good application prospects.