The effects of cement-based permeable crystalline waterproof material(CCCW)with different content on water retention,mechanical properties,impermeability,chloride penetration resistance and setting time of concrete were studied.At the same time,scanning electron microscopy was used to observe and analyze its microstructure.The experimental results show that an appropriate amount of cement-based permeable crystalline waterproof material can significantly improve the water retention and mechanical properties of concrete,and the best effect is achieved when the addition amount is 0.8%.Cement-based permeable crystalline waterproof material also improves the impermeability and chloride ion permeability of concrete.When the addition amount is 1.0%,the impermeability pressure ratio increases more obviously,and the Electric flux is the lowest.It can be observed that as the amount of cement-based permeable crystalline waterproofing material increases,the setting time of concrete also decreases;SEM images show that the addition of CCCW promotes the hydration reaction between cracks and voids,generating branched crystals,making the concrete more dense and improving its mechanical properties and permeability.
关键词
水泥基渗透结晶型防水材料/混凝土/保水性/力学性能/抗渗性/抗氯离子渗透性
Key words
CCCW/concrete/water retention/mechanical properties/impermeability/resistance to chloride ion penetration
维普
万方数据