Lightweight concrete

Abstract

The invention relates to the technical field of concrete, in particular to lightweight concrete.The lightweight concrete is prepared from 32-48 parts of cement, 6-8 parts of natural gypsum, 4-8 parts of oil shale ash, 1.2-4.8 parts of EPS particles, 5-10 parts of ceramic particles, 8-15 parts of pumice stone, 2.4-6.2 parts of hydrolyzed protein, 1.8-5.4 parts of Arabic gum, 5-10 parts of expanded perlite fine aggregate, 3.6-5.8 parts of phosphorus gypsum, 6-10 parts of glass fibers, 8-12 parts of an acrylic acid organic thickening agent, 1.2-5 parts of a water reducing agent, 1.8-4.8 parts of a rare earth stabilizing agent, 1.2-3.6 parts of a coagulation agent and 2.4-5.6 parts of an early-strength agent.The lightweight concrete is light in weight and convenient to construct, meanwhile has good heat-preserving performance and is low in cost; the heat resistance degree is high; heat resistance of a cement inorganic material can reach 500 DEG C or above, no thermal decomposition exists, and therefore service life is longer, and it is avoided that heat preservation loses efficacy; the lightweight concrete is environmentally friendly and free of toxin and harm; using cost is lower, and construction speed is high.

Description

technical field [0001] The invention relates to the technical field of concrete, in particular to lightweight concrete. Background technique [0002] Lightweight concrete is a new type of building energy-saving material that is environmentally friendly, energy-saving, inexpensive and non-combustible. Foamed concrete is a concrete product that contains a large number of closed pores and has considerable strength by introducing air or nitrogen, carbon dioxide, nitrogen and other gases into the concrete slurry according to the application needs through chemical or physical means, and after reasonable maintenance and molding. . The production of foamed concrete is usually prepared by mechanical means to prepare foaming agent aqueous solution into foam, and then add the foam to the slurry composed of siliceous material, calcium material, water and various admixtures, etc., after mixing and stirring, pouring and molding , A porous material made of curing. [0003] 201410609480....

AI Technical Summary

Problems solved by technology

[0003] 201410609480.1 discloses a lightweight concrete made of the following raw materials in parts by weight: 30-50 parts of cement, 7-11 parts of quicklime, 6-10 parts of natural gypsum, 3-9 parts of oil shale ash, foam stabilizer 4-8 parts, 6-8 parts of fly ash, 1-5 parts of EPS polystyrene particles, 7-10 parts of slag, 5-8 parts of silica sand, 7-9 parts of silica fume, 5-11 parts of calcium carbonate, construction 60-90 parts of waste residue, 5-10 parts of foaming agent; it has the effects of light weight, convenient construction, and low cost, but there are still technical deficiencies in thermal insulation effect

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