Technical requirements, autoclaved lime-sand bricks are ordinary lime-sand bricks made of sand and lime as the main raw materials, pigments and admixtures are allowed, prepared from blanks, pressed into shape, and cured by high-pressure steam
①The silica content in the sand should be greater than 65%
②The clay content in the sand should be less than 15%
③The total amount of potassium oxide and sodium oxide in the sand shall not exceed 2.5%
④The sand should not contain organic impurities such as gravel, grass roots, and bark.
⑤The moisture content of the sand shall not exceed 6%.
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