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我厂在1959年试制成功了一种新型的具有良好隔热性能、容重轻、成本低廉的粘土木屑轻砖.它的容重为400公斤/立米,抗压强度达到25-40公斤/平方厘米,抗折强度12-16公斤/平方厘米.粘土木屑轻砖是在制砖原料的粘土中掺入一定数量的木屑制坯烧得的.坯体中的木屑在焙烧时燃尽而形成许多小孔洞,从而获得了容重较轻的制品.用它代替泡沫混凝土作承受自重的隔热材料,可以节省大量的水泥. 制作粘土木屑轻砖,首先要用孔径为0.5-1.0厘米的筛子除去木屑内较大的木片木块等物;要选择含铁量较少的黄粘土作原料较为合适,因为含铁量过多的粘土在焙烧时易于熔化而造成废品.当原料土和木屑处理好以后,按一定比例(干粘土粉与木
In 1959, our factory successfully produced a new kind of clay wood chip light brick with good heat insulation performance, light weight density and low cost. Its bulk density is 400 kg/m3, and its compressive strength is 25-40 kg/cm2. The flexural strength is 12-16 kg/cm2. The clay wood chips are made by adding a certain amount of sawdust to the clay of the brick raw material. The wood chips in the blank burn out and form many small holes. , In order to obtain a lighter weight product, use it instead of foamed concrete as a heat-resistant material to withstand weight, you can save a lot of cement. To produce clay wood chips, first use a sieve with a pore size of 0.5-1.0 cm to remove wood chips. Large pieces of wood chips, etc.; to choose yellow clay with less iron as raw material is more appropriate, because clay with too much iron is easy to melt when roasting, resulting in waste. When raw materials and wood chips are processed, press A certain percentage (dry clay powder and wood