Green high-strength concrete and preparation technology thereof

A preparation process and high-strength technology, applied in sustainable waste treatment, solid waste management, climate sustainability, etc., can solve the problems of uneven strength and poor stability of concrete structures, and achieve improved strength, good stability, and guaranteed Environmentally friendly effects

Inactive Publication Date: 2019-04-12
杭州申华混凝土有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Aiming at the problem in the prior art that the overall structural strength of the concrete is not uniform and the stability is poor due to the poor stability of the recycled concrete aggregate in the concrete, the first purpose of the present invention is to provide a green high-strength concrete, by improving The compactness and structural strength of recycled concrete aggregates to solve the above technical problems, it has good stability and structural strength, and the overall structural strength is uniform

Method used

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  • Green high-strength concrete and preparation technology thereof
  • Green high-strength concrete and preparation technology thereof
  • Green high-strength concrete and preparation technology thereof

Examples

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Effect test

Embodiment 1

[0050] Embodiment 1: a kind of green high-strength concrete, each component and its corresponding parts by weight are shown in Table 1, and are prepared through the following steps:

[0051] Step 1, the corresponding parts by weight of stones, medium sand, fly ash, Portland cement, and mineral powder are stirred and mixed in a drying barrel, the rotating speed is 700 rpm, the time is 30 min, and the temperature is controlled at 90 ° C to obtain the mixing. material;

[0052] Step 2, adding silicon powder and waste steel slag in corresponding parts by weight into the mixture, stirring and drying, the temperature is controlled at 80°C, the time is 20min, and the stirring speed is 600rpm to obtain the base material;

[0053] Step 3, put the corresponding parts by weight of water, water glass, sodium thiosulfate and sodium lignosulfonate into the stirring tank for stirring, the time is 10min, and the stirring speed is 400rpm to obtain a mixed solution;

[0054] Step 4: Immerse th...

Embodiment 2-8

[0056] Example 2-8: a green high-strength concrete, which is different from Example 1 in that each component and its corresponding parts by weight are shown in Table 1.

[0057] Each component and its parts by weight in the embodiment 1-8 of table 1

[0058]

[0059]

Embodiment 9

[0060] Embodiment 9: a kind of green high-strength concrete, the difference from embodiment 1 is that the recycled concrete aggregate in step 4 is mainly composed of fine material with a particle size of 1 mm and a coarse material with a particle size of 8 mm, and the fine The weight ratio of raw material and coarse material is 1:1.5.

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Abstract

The invention discloses green high-strength concrete and a preparation technology thereof, and relates to the technical field of concrete production. The problems are solved that since recycled concrete aggregate in concrete is poor in stability, the overall structural strength of the concrete is not uniform, and the stability is poor. The green high-strength concrete includes, by weight, 180-220parts of water, 450-550 parts of cobbles, 751-800 parts of medium sand, 250-260 parts of Portland cement, 40-70 parts of pulverized fuel ash, 90-100 parts of mineral powder, 120-160 parts of recycledconcrete aggregate, 61-80 parts of abandoned steel slag, 20-35 parts of water glass, 8-10 parts of sodium thiosulfate, 16-20 parts of intensifying filling and 3-5 parts of a water reducing agent. Thegreen high-strength concrete has good stability and structural strength, and is uniform in overall structural strength, realizes greening in production, and has good applicability.

Description

technical field [0001] The invention relates to the technical field of concrete production, more particularly, to a green high-strength concrete and a preparation process thereof. Background technique [0002] Concrete refers to the cement concrete that uses cement as cementitious material, sand and stone as aggregate, and is mixed with water, admixtures and admixtures in a certain proportion, and is also called ordinary concrete. It is widely used in civil engineering. . [0003] In the Chinese invention patent publication number CN103771782A, a porous concrete prepared from waste concrete aggregates and a method thereof are disclosed. The components and mass ratio of the porous concrete prepared from waste concrete aggregates are: polypropylene fiber 1~ 4 parts, 250-300 parts of cement, 1,200-1,500 parts of recycled aggregate, 130-160 parts of sand, 90-110 parts of water and 3-6 parts of admixtures, the admixtures are composed of polycarboxylate water reducer 20-160 parts...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/26C04B20/02C04B18/16C04B14/04
CPCC04B20/026C04B28/26C04B2201/52C04B7/02C04B14/02C04B14/06C04B18/08C04B18/141C04B18/16C04B18/142C04B22/14C04B18/146C04B24/18C04B14/42Y02W30/91
Inventor 周华
Owner 杭州申华混凝土有限公司
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