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1.表观密度免烧砖的袭观密度是指材料在自然状态下单位表观体积的质量,因其原材料不同而差异甚大。据统计结果,平均为2.29g/cm~3,变化于1.8～2.3g/cm~3间。烧结砖为1.8～1.9g/cm~3。2.密实度与孔隙率免烧砖系加压成型,制品密实,孔隙率比烧结砖小,吸水率也小,其中毛细孔只占总孔的16%。3.耐水性①烧结红砖浸水1h 就接近饱和,吸水率达24%。免烧砖浸水8h 后才基本稳
1. Apparent density Burning brick view density refers to the material in the natural state of the apparent volume of the unit mass, because of their raw materials vary greatly. According to the statistics, the average is 2.29g / cm ~ 3, varying between 1.8 ~ 2.3g / cm ~ 3. Sintered brick 1.8 ~ 1.9g / cm ~ 3.2. Density and porosity Unburned brick press molding, compact, porosity smaller than the sintered brick, water absorption is also small, of which only the total pore pores 16%. 3. Water resistance ① sintered red brick immersion 1h close to saturation, water absorption rate of 24%. Unburned brick flooding after 8h basically stable