A kind of lightweight autoclaved aerated concrete and its preparation method
An autoclaved aeration and concrete technology, applied in ceramic products, other household appliances, household appliances, etc., can solve the problems of low compressive strength, high material shrinkage, and difficulty in producing low-density products, and achieve improved compressive strength. , to solve the effect of low intensity
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Embodiment 1
[0032] A lightweight autoclaved aerated concrete, characterized in that: in parts by weight, its raw material ratio is: 65 parts of quartz sand, 20 parts of lime, 10 parts of cement, 3 parts of gypsum, 0.30 parts of aluminum powder paste, inorganic fiber 0.5 parts, 5 parts of grinding aid.
[0033] Described inorganic fiber is medium-alkali glass fiber;
[0034] The density of the light autoclaved aerated concrete is 300kg / m 3
[0035] Its concrete preparation steps are:
[0036] (1) take each raw material in proportion, for subsequent use;
[0037] (2) Add water to the quartz sand and add grinding aid therein, and wet-grind it with a ball mill to obtain quartz mortar; the fineness of quartz mortar is 0.08mm square hole sieve remaining 9%, and the density is 1480kg / m 3 .
[0038] (3) After the lime block is crushed with a jaw crusher, it is ground with a ball mill to obtain lime powder; the lime powder has a fineness of 0.08mm square hole sieve with 5% remaining and an ef...
Embodiment 2
[0048] A lightweight autoclaved aerated concrete, characterized in that: in parts by weight, its raw material ratio is: 65 parts of quartz sand, 20 parts of lime, 10 parts of cement, 3 parts of gypsum, 0.3 parts of aluminum powder paste, inorganic fiber 0.5 parts, 5 parts of grinding aid.
[0049] Described inorganic fiber is medium-alkali glass fiber;
[0050] The density of the light autoclaved aerated concrete is 315kg / m 3
[0051] Its concrete preparation steps are:
[0052] (1) take each raw material in proportion, for subsequent use;
[0053] (2) Add water to the quartz sand and add grinding aid therein, and wet-grind it with a ball mill to obtain quartz mortar; the fineness of the quartz mortar is 10% of the 0.08mm square hole sieve, and the density is 1600kg / m 3 .
[0054] (3) After the lime block is crushed with a jaw crusher, it is ground with a ball mill to obtain lime powder; the lime powder is a fineness of 0.08mm square hole sieve with a residue of 7%, and a...
Embodiment 3
[0064] A lightweight autoclaved aerated concrete, characterized in that: in parts by weight, its raw material ratio is: 70 parts of quartz sand, 25 parts of lime, 13 parts of cement, 2.0 parts of gypsum, 0.32 parts of aluminum powder paste, inorganic fiber 0.6 parts, 5.5 parts of grinding aids.
[0065] Described inorganic fiber is medium-alkali glass fiber;
[0066] The density of the light autoclaved aerated concrete is 325kg / m 3
[0067] Its concrete preparation steps are:
[0068] (1) take each raw material in proportion, for subsequent use;
[0069] (2) Add water to the quartz sand and add grinding aid therein, and wet grind it with a ball mill to obtain quartz mortar; the fineness of the quartz mortar is 0.08mm square hole sieve and the remaining 8%, and the density is 1500kg / m 3 .
[0070] (3) After the lime block is crushed with a jaw crusher, it is ground with a ball mill to obtain lime powder; the lime powder is 10% fineness of 0.08mm square hole sieve, and 82% ...
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