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一、灰土为什么论步?建筑业通常把灰土的厚度单位叫步,一步为15厘米。灰土为什么论步呢?追根溯源,早在宋朝李诫编撰的《宋式营造法式》中,就详细记载了灰土和三合土的作法:“每布土厚五寸,筑实厚三寸,每布碎砖及石碴等厚三寸,筑实一寸五分”。其中“布”字是指分布的意思,也就是灰土虚铺一次的厚度。布与步同音,过去师傅带徒弟多为口传心授,流传下来,就成步
First, why is the lime soil? The construction industry usually refers to the unit of thickness of lime soil, one step is 15 centimeters. Why did the lime soils be traced? As far back as the roots, as early as in the “Song-style construction method” compiled by Song Li’s Li Song, the practice of lime soil and triadic soil was described in detail: “Every cloth is five inches thick and three-inch thick is built. Cloth bricks and stone mortars are three inches thick, and they are built in five inches.“ Among them, the word ”cloth" refers to the meaning of distribution, that is, the thickness of a gray soil shop. Cloths and steps are homophonic. Past masters and apprentices have given oral instructions and passed down.