水泥基渗透结晶型防水剂对不同水灰比混凝土的影响研究

Study on Effect of Cementitious Capillary Crystalline Waterproofing Agent on Concrete with Different Water Cement Ratios

研究了水泥基渗透结晶型防水剂对水灰比为0.60、0.50、0.38的3种混凝土力学性能、孔隙结构以及耐久性的影响。结果表明:渗透结晶型防水剂可以增大不同水灰比混凝土的抗压强度和抗折强度;可以改善不同水灰比混凝土的孔径分布,降低有害孔的占比,提升无害孔的占比;加入渗透结晶型防水剂后,不同水灰比混凝土的电通量大幅下降,抗氯离子渗透能力得到提升。

The effect of cementitious capillary crystalline waterproofing agent on the mechanical properties,pore structure and durability of three types of concrete with water cement ratios of 0.60,0.50 and 0.38 is studied.The results show that the capillary crystalline waterproofing agent can increase the compressive strength and bending strength of concrete with different water cement ratios;it can improve the pore size distribution of concrete with different water cement ratios,reduce the proportion of harmful pores,and increase the proportion of harmless pores;after adding capillary crystalline waterproofing agent,the electric flux of concrete with different water cement ratios decreased significantly,and the chloride ion penetration resistance is improved.