- 劉 立，趙順增，李長成，賈福杰
引用本文摘 要：采用新型雙膨脹源膨脹劑以及不同密度等級、不同類型的輕骨料配制輕質自防水混凝土，并對其工作性、物理力學、變形等性能進行了研究。研究結果表明，輕質自防水混凝土的工作性與輕骨料吸水率、形貌、級配、密度等性質密切相關；相同水膠比下，抗壓強度取決于輕骨料的筒壓強度；輕骨料的吸水特性對膨脹劑有增益作用，在膨脹劑與輕骨料的相互作用下，輕質自防水混凝土限制膨脹率大幅提高，干燥收縮得到明顯抑制。 Abstract: Lightweight self-waterproof concrete (LSWC) was made by double expansion resource expansive agent and lightweight aggregate (LA) of different density degree and type. Workability, physical mechanics, and deformation of LSWC were investigated. The results show that workability of LSWC is closely related to water absorption, shape, gradation, and density of LA. Compressive strength of LSWC depends on cylinder compressive strength of LA when with a fixed water to binder ratio. Water absorption of LA can result in prolonging of expansion rate. In the interrelationship between expansive agent and LA, restrained expansion rate of LSWC grows significantly, and drying shrinkage is obviously inhibited.