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Preparation process of high-strength concrete

A preparation process and concrete technology, which are applied in the field of high-strength concrete preparation technology, can solve the problems of reducing concrete strength, accelerating concrete corrosion rate, unsatisfactory overall strength and stability of concrete structure, etc., so as to save usage and improve strength , Improve the effect of various comprehensive performance

Inactive Publication Date: 2020-06-05
北京古运混凝土有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The above-mentioned existing technical solutions have the following defects: the strength of the concrete is increased by adding steel fibers, carbon fibers and sepiolite fibers in the formula of the concrete, and the water-based acrylic polyurethane is used to block each other. To damage or failure, accelerate the rate of concrete corrosion, thereby gradually reducing the strength of concrete
Therefore, the overall strength and stability of the concrete structure of the building is not ideal

Method used

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  • Preparation process of high-strength concrete
  • Preparation process of high-strength concrete

Examples

Experimental program
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Effect test

Embodiment 1

[0037] refer to figure 1 , figure 2 , is a kind of preparation technology of high-strength concrete disclosed by the present invention, comprising the following construction steps:

[0038] S1, preparing cement: Put cement clinker, raw gypsum, fly ash, coal gangue, and calcium stearate into a heating and stirring tank in sequence according to the weight ratio of 11:9:1.2:0.3:0.15, and heat to 100 ~120°C and keep warm for 0.5~1h, then put the mixture into a fine grinder for refining treatment, and then get cement for use;

[0039] S2, preparation of concrete additives: sodium p-hydroxybenzenesulfonate, triphenyl phosphite, modified chitosan, barium stearate, and dibutyltin laurate in sequence in a weight ratio of 14:12:6:2.5:0.02, Put them together in the mixing tank for full mixing, then you can get the concrete additive for use;

[0040] S3, preparation of concrete: Put the cement and concrete additives prepared in the above steps together with water, fine aggregate, anti...

Embodiment 2

[0044] refer to figure 1 , figure 2 , is a kind of preparation technology of high-strength concrete disclosed by the present invention, comprising the following construction steps:

[0045] S1, preparation of cement: Put cement clinker, raw gypsum, fly ash, coal gangue, and calcium stearate into the heating and stirring tank in sequence according to the weight ratio of 10:8:1:0.2:0.1, and heat to 100 ~120°C and keep warm for 0.5~1h, then put the mixture into a fine grinder for refining treatment, and then get cement for use;

[0046] S2, preparation of concrete additives: sodium p-hydroxybenzenesulfonate, triphenyl phosphite, modified chitosan, barium stearate, and dibutyltin laurate in sequence in a weight ratio of 10:10:5:2:0.01, Put them together in the mixing tank for full mixing, then you can get the concrete additive for use;

[0047] S3, preparing concrete: put the cement and concrete additives prepared in the above steps into the concrete mixer together with water,...

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Abstract

The invention relates to a preparation process of high-strength concrete. The preparation process comprises the following construction steps: S1, preparing cement; S2, preparing a concrete additive; S3, preparing concrete; S4, pouring concrete; and S5, curing concrete; a supporting frame is arranged along the outer side of the concrete; gaps between all the surfaces of the concrete and the supporting frame are filled with the inflatable air bags respectively, air inlets of the inflatable air bags are connected with a pressure hot air source through air guide pipes, the inflatable air bags abutagainst the surface of the concrete, the supporting frame on the outer side of the concrete is detached after 0.8 d to 1.5 d, and then the high-strength concrete is obtained. The raw materials of theconcrete are reasonable in proportion, the chemical properties of the raw materials are stable, the curing process of the concrete is further optimized, the overall strength parameter of the concreteis improved, and the service life of the concrete is prolonged.

Description

technical field [0001] The invention relates to the technical field of building materials, in particular to a preparation process of high-strength concrete. Background technique [0002] Concrete is referred to as concrete for short, which refers to the cement concrete obtained by using cement as the cementitious material, sand and stone as the aggregate; mixed with water (may contain admixtures and admixtures) in a certain proportion, and stirred. , which is widely used in civil engineering. Concrete is one of the commonly used materials in modern construction projects, but the strength of ordinary concrete structures is limited, and it is difficult to meet the needs of some special projects, so there is still room for improvement. [0003] The Chinese invention patent No. CN110577390A discloses a concrete preparation process in the prior art. Coarse aggregates, fiber fillers and water are added to the second mixture, and after uniform stirring, the third mixture is obtain...

Claims

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Application Information

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IPC IPC(8): C04B28/14C04B40/02B28B1/14B28B11/24
CPCB28B1/14B28B11/245C04B28/14C04B40/0259C04B2201/50C04B7/00C04B18/18C04B18/12C04B24/085C04B24/20C04B24/003C04B24/38C04B24/40C04B2103/302C04B22/142C04B22/143C04B22/06C04B24/383
Inventor 马大勇郝欣伟刘树刚雷长庚
Owner 北京古运混凝土有限公司
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