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碎砖三合土碎砖三合土是砖基础或实铺地坪垫层的一种材料。由白灰、砂子、碎砖加水拌和而成,体积比为1:3:6,施工时要求铺平拍实。灰土灰土是北方地下水位较低的地区,一般平房基础或地坪垫层常用
Broken brick Sanhe soil broken brick Sanhe soil is a kind of material for brick foundation or solid floor cushion. It is made up of white ash, sand, broken bricks and water. The volume ratio is 1:3:6. Lime-soil is a region with low groundwater level in the north. It is commonly used in cottage foundations or floor cushions.