论文部分内容阅读
混凝土是一种多孔材料,在其内部有各种毛细管、裂缝和孔隙。防水混凝土就是通过采取适当的措施,有目的地调整混凝土内毛细管的构造,减少相互连通的毛细管,以提高混凝土的密实度来达到防水目的的。本文介绍影响防水混凝土抗渗能力的因素。一、透水通道混凝土受压力水作用时,水从其中的孔隙或组成材料本身中通过,若水流孔隙是连续的,则造成混凝土渗漏。因此防水混凝土的骨料——石子和砂子应质地坚实、致密、形状整齐、吸水小,本身要有很高的抗渗性能。混凝土中的骨料一般能满足上述要求,
Concrete is a porous material with various capillaries, cracks and pores inside. Waterproof concrete is to achieve the purpose of waterproofing by adopting appropriate measures to purposely adjust the structure of the capillary tubes in the concrete and reduce the number of interconnected capillary tubes to increase the compactness of the concrete. This article describes the factors that affect the impermeability of waterproof concrete. 1. Permeable Channel When concrete is subjected to pressure water, water passes through the pores or the constituent material itself. If the water flow pores are continuous, the concrete leaks. Therefore, the aggregate of waterproof concrete - stone and sand should be solid, compact, neat shape, small water absorption, itself must have high impermeability. Concrete aggregates generally meet the above requirements.