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Commercial concrete and preparation process thereof
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A technology of commercial concrete and mixed sand, which is applied in the field of building materials, can solve problems such as cracks in concrete, and achieve the effects of increasing concrete strength, good crack resistance, and saving cement consumption
Inactive Publication Date: 2020-08-28
河南恒发建筑材料有限公司
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Abstract
Description
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Problems solved by technology
[0005] The purpose of the present invention is to: provide a commercial concrete and its preparation process, to solve the problem that cracks will appear in the above-mentioned existing concrete
Method used
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Examples
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Effect test
Embodiment 1
[0031] A commercial concrete, by weight percentage, said commercial concrete comprises the following components: 120-500 parts of cement, 947 parts of mixed sand, 986 parts of stones, 63 parts of mineral powder, 79 parts of fly ash, 6.5 parts of admixture, ore 63 parts of powder, 79 parts of fly ash, the additives include polycarboxylate high-performance water reducer, polymethacrylic acid, polyethylene glycol, hair powder, modified shell powder, rice husk ash and white sugar, poly The mass ratio of carboxylic acid-based high-performance water reducer, polymethacrylic acid, polyethylene glycol, hair powder, modified shell powder, rice hull ash and white sugar is 4:2:3:1:2:2:0.01.
[0032] The water-cement ratio is 0.65, and the sand rate is 49.
[0033] A commercial concrete preparation process, comprising the steps of:
[0034] (1) Soak the shell powder in tap water for 4-10 hours, constantly stirring and cleaning the surface sludge of the shell powder;
[0035] (2) Natural...
Embodiment 2
[0039] A commercial concrete, by weight percentage, said commercial concrete comprises the following components: 233 parts of cement, 836 parts of mixed sand, 1022 parts of stone, 45 parts of mineral powder, 69 parts of fly ash, 8.7 parts of admixture, 45 parts of mineral powder parts, 69 parts of fly ash, the additives include polycarboxylate high-performance water reducer, polymethacrylic acid, polyethylene glycol, hair powder, modified shell powder, rice husk ash and white sugar, polycarboxylate The mass ratio of high-performance water reducer, polymethacrylic acid, polyethylene glycol, hair powder, modified shell powder, rice husk ash and white sugar is 7:4:4:2:3:7:0.03.
[0040] The water-cement ratio is 0.49, and the sand ratio is 45.
[0041] The preparation process is as described in Example 1.
Embodiment 3
[0043] A commercial concrete, by weight percentage, said commercial concrete comprises the following components: 295 parts of cement, 731 parts of mixed sand, 1046 parts of stone, 67 parts of mineral powder, 85 parts of fly ash, 11.6 parts of admixture, 67 parts of mineral powder parts, 85 parts of fly ash, the additives include polycarboxylate high-performance water reducer, polymethacrylic acid, polyethylene glycol, hair powder, modified shell powder, rice husk ash and white sugar, polycarboxylate It is a high-performance water reducer, polymethacrylic acid, polyethylene glycol, hair powder, modified shell powder, rice husk ash and sugar in a mass ratio of 10:6:6:3:4:12:0.05.
[0044] The water-cement ratio is 0.38, and the sand rate is 41.
[0045] The preparation process is as described in Example 1.
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Abstract
The invention discloses commercial concrete and a preparation process thereof, belongs to the field of building materials, is used for building construction, and solves the problem that existing concrete cracks. The concrete is prepared from the following components in parts by weight: 300 parts of cement, 891 parts of mixed sand, 1005 parts of stones, 46 parts of mineral powder, 67 parts of fly ash and 7.6 parts of additives, wherein the additives comprise a polycarboxylate-type high-performance water reducing agent, polymethacrylic acid, polyethylene glycol, hair powder and modified shell powder. The polymethylacrylic acid enables the strength of the concrete to be rapidly increased under a low-temperature condition to obtain good strength; polyethylene glycol is used as a thickening agent, the hair powder can improve the adhesion of the concrete and can improve the toughness of the concrete.The shell powder takes natural shells as raw materials, has natural characteristics of natureand environmental protection, the main component is calciumcarbonate, the shell powder plays a role of reinforcing ribs, and with reasonable matching of aggregate, powder, polymethacrylic acid, polyethylene glycol, hair powder and modified shell powder, the prepared commercial concrete has good anti-cracking performance.
Description
technical field [0001] The invention belongs to the technical field of building materials, and in particular relates to commercial concrete and a preparation process thereof. Background technique [0002] Commercial concrete refers to concrete that is used for commercial purposes, such as concrete that can be sold or purchased. Commercial concrete is used in most of the current building construction. [0003] A general term for engineering composite materials in which aggregates are cemented into a whole by cementitious materials. The term concrete usually refers to cement as cementing material, sand and stone as aggregate; mixed with water (with or without admixtures and admixtures) in a certain proportion, obtained by stirring, molding and curing Cement concrete, also known as ordinary concrete, is widely used in civil engineering. [0004] The article "Reflections on Concrete Science and Technology" pointed out: "Concrete materials have developed so far, and there have...
Claims
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Application Information
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