今年3月,在四川省召开了由省建材局地方企业处和广汉县灰砂砖厂研制成功的灰砂硅酸盐混凝土成果鉴定会。这种材料是以生石灰和砂子为主要原料,经配料、搅拌、加压振动成型,带模蒸压养护而成的。一年多来,他们通过几百次配方试验,现已使试件立方体抗压强度基本稳定在400公斤/厘米~2 In March of this year, a lime-silicate concrete results appraisal meeting was successfully held in Sichuan Province by the Local Enterprise Department of the Provincial Building Materials Bureau and the Guangsha County lime sand brick factory. This material is made of quicklime and sand as the main raw material, formed by mixing, stirring, pressure and vibration molding, with mold autoclaved curing. Over the past year or so, they passed hundreds of formula tests, and now the compressive strength of the cubes has basically stabilized at 400 kg/cm~2.