孙友康,庞超明,王少华,徐世豪
轻骨料多孔混凝土的制备与性能
孙友康,庞超明,王少华,徐世豪
摘 要:研究了轻骨料种类、粒径、掺量对轻骨料多孔混凝土抗压强度、导热系数、吸水率、干燥收缩的影响。研究结果表明,轻骨料的筒压强度越高,轻骨料多孔混凝土的抗压强度越高;粒径较小的轻骨料在浆体中分布更为均匀,不易出现上浮现象,抗压强度更高;适量的轻骨料可增加轻骨料混凝土的抗压强度、降低多孔混凝土的导热系数;轻骨料的合理使用可以降低多孔混凝土吸水率与干燥收缩值,提高轻骨料多孔混凝土的耐久性。
Abstract: The effect of lightweight aggregate type, particle size, content on the compressive strength, thermal conductivity, water absorption, drying shrinkage of the lightweight aggregate porous concrete were studied. Compared with lightweight aggregate concrete, the results showed that, the compressive strength of lightweight aggregate is increased with the increase of the cylinder pressure strength of the lightweight aggregate porous concrete. The light aggregate with smaller particle size distributes uniformly can increase the compressive strength. Appropriate lightweight aggregate concrete can increase the compressive strength of lightweight aggregate concrete and reduce the thermal conductivity of porous concrete. The reasonable use of lightweight aggregate can reduce the water absorption and drying shrinkage of the porous concrete and improve the durability of lightweight aggregate concrete.
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