铺贴地砖沙子水泥用量取决于以下因素:1.地面面积:需要铺贴的地面面积越大,所需的沙子和水泥量也就越多。2.砖的尺寸:不同尺寸的砖需要不同的沙子和水泥量。3.砖的厚度:砖的厚度越大,所需的沙子和水泥量也就越多。4.砖与地面之间的间隙:砖与地面之间需要填充一定的沙子和水泥,以确保砖与地面之间的粘合力。一般来说,铺贴地砖所需的沙子和水泥比例为3:1,即每3份沙子需要1份水泥。具体用量可以根据上述因素进行计算,或者咨询专业的瓦工。
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