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１陶粒保温砂浆１．１原料特点及辅料选择（１）陶砂的粒度如表１所示。其松散密度为０．７９８ｇ／ｃｍ３,堆积密度为０．８９９ｇ／ｃｍ３,空隙率６５%～７５% ,热导率为０．１１Ｗ／（ｍ·Ｋ）。表１陶砂粒度粒度／ｍｍ含量／ %１．２５～０．７６４２＜０．７６（２）选用?
1 ceramsite insulation mortar 1.1 raw material characteristics and accessories selection (1) ceramic sand particle size shown in Table 1. Its bulk density is 0.798g / cm3, bulk density is 0.899g / cm3, porosity is 65% ~ 75%, thermal conductivity is 0.11W / (m · K). Table 1 Ceramsite particle size / mm content /% 1.25 ~ 0.7642 <0.76 (2) Selection?