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陶粒无砂大孔混凝土空心小砌块(以下简称陶粒空心砌块),是采用经级配优选的粘土陶粒掺入适量水泥配制而成。其规格为高250 mm,长600mm,厚分别为125、150、200、250、300mm等五种,与加气混凝土砌块的规格基本相同。陶粒空心砌块的物理性能经中国建筑科学研究院测定,其各项指标为:抗压强度(MPa):2,62抗折强度(MPa): 0.77容重(kg/L): 0.57空心率(%):51.5吸水率(%): 9.08砌体轴压强度(MPa):1.96砌体抗剪强度(MPa): 0.20抗冻性:经15次冻融循环后强度无损失
Ceramsite sand-free large-hole concrete hollow block (hereinafter referred to as ceramsite hollow block) is prepared by blending appropriate grades of clay ceramsite with proper amount of cement. Its specification is 250 mm in height, 600 mm in length, and the thickness is 125, 150, 200, 250, 300mm, etc. These specifications are basically the same as those of aerated concrete blocks. The physical properties of the ceramsite hollow block were measured by China Academy of Building Research, and its indexes were: compressive strength (MPa): 2,62 flexural strength (MPa): 0.77 bulk density (kg/L): 0.57 hollow rate (%): 51.5 Water absorption (%): 9.08 Masonry axial compression strength (MPa): 1.96 Masonry shear strength (MPa): 0.20 Frost resistance: no loss of strength after 15 freeze-thaw cycles