Preparation method of light composite concrete panel
A concrete and plate technology, which is applied in the field of preparation of lightweight composite concrete plates, can solve the problems of micro-cracks, inability to meet building structure, broken and other problems
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[0019] The present invention also provides a method for preparing the lightweight composite concrete slab, comprising the following steps:
[0020] (1) Soak the waste rubber particles in an acidic solution with a pH of 6-6.5 for 3-5 hours to obtain acidified rubber, mix the acidified rubber and maleic anhydride in water evenly, and then stir and react at 80-120°C for 1-2 hours , to obtain modified rubber;
[0021] (2) 25-45 parts by weight of slag powder, 15-35 parts by weight of cement, 15-30 parts by weight of fine sand, 5-12 parts by weight of diatomaceous earth, 3-15 parts by weight of light calcium carbonate, polyaluminum chloride 3-12 parts by weight, 15-48 parts by weight of light aggregate, and 1-5 parts by weight of reinforcing fiber are uniformly mixed under mechanical stirring conditions to obtain a powder mixture;
[0022] (3) Disperse 0.5-1.5 parts by weight of water reducer and 0-5 parts by weight of other additives in water evenly, then add them to the above po...
Embodiment 1
[0026] (1) Soak 4 parts by weight of waste rubber particles in an acidic solution with a pH of 6 to 6.5 for 4 hours to obtain acidified rubber. After mixing the acidified rubber and 10 parts by weight of maleic anhydride in water, stir and react at 100°C for 1 hour , to obtain modified rubber;
[0027] (2) 35 parts by weight of slag powder, 25 parts by weight of cement, 23 parts by weight of fine sand, 8 parts by weight of diatomaceous earth, 8 parts by weight of light calcium carbonate, 6 parts by weight of polyaluminum chloride, and 10 parts by weight of clay ceramsite (1~5mm), 10 parts by weight of pumice stone (1~5mm), 10 parts by weight of polyethylene foam, 5 parts by weight of polypropylene fiber and modified rubber are uniformly mixed under mechanical stirring conditions to obtain a powder mixture;
[0028] (3) 1.2 parts by weight of polycarboxylate superplasticizer (model PASP-Ca, purchased from Shandong Yuanlian Chemical Co., Ltd.), 1 part by weight of sodium dodecyl...
Embodiment 2
[0031] (1) Soak 3 parts by weight of waste rubber particles in an acidic solution with a pH of 6 to 6.5 for 3 hours to obtain acidified rubber. After mixing the acidified rubber and 9 parts by weight of maleic anhydride in water, stir and react at 120°C 1h, obtain modified rubber;
[0032](2) 25 parts by weight of slag powder, 35 parts by weight of cement, 15 parts by weight of fine sand, 12 parts by weight of diatomaceous earth, 5 parts by weight of polyethylene foam (1 ~ 5mm), 10 parts by weight of castor stalk, polymerized 12 parts by weight of aluminum chloride, 1 part by weight of polyhexamethylene adipamide fiber and modified rubber are uniformly mixed under mechanical stirring to obtain a powder mixture;
[0033] (3) 1.5 parts by weight of polycarboxylate water reducer (model PASP-Ca, purchased from Shandong Yuanlian Chemical Co., Ltd.), 1 part by weight of sodium dodecylbenzenesulfonate, 1 part by weight of calcium stearate, 1 part by weight of hydroxyethyl methyl rei...
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