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High-strength concrete and preparation process thereof

A preparation process and concrete technology, which is applied in the field of concrete, can solve the problems of poor bonding and low overall structural strength, and achieve the effects of increased overall structural strength, improved bonding, and high production efficiency

Active Publication Date: 2019-03-01
上海兆捷实业发展有限公司
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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 low due to poor bonding between the raw materials of the various components, the first object of the present invention is to provide a high-strength concrete, by adding rock wool, expanded perlite and Fiber filler, and make it have a good matching effect, in order to solve the above technical problems, it has a high density, so that it has good structural strength

Method used

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  • High-strength concrete and preparation process thereof
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  • High-strength concrete and preparation process thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0052] Embodiment 1: A kind of high-strength concrete, each component and its corresponding parts by weight are shown in Table 1, and are prepared through the following steps:

[0053] Step 1: Stir and mix Portland cement, medium sand, gravel, mineral powder, fly ash and expanded perlite in a drying barrel at a speed of 600 rpm for 40 minutes and control the temperature at 90 °C, forming a mixture;

[0054] Step 2, adding rock wool and polypropylene fibers in corresponding parts by weight to the mixture, stirring and drying in a drying barrel, the temperature is controlled at 50°C, the time is 30min, and the stirring speed is 500rpm to obtain the base material;

[0055] Step 3, adding sodium tripolyphosphate and sodium lignosulfonate in corresponding parts by weight into water, and putting them into a mixing tank for stirring for 10 minutes at a stirring speed of 500 rpm to obtain a mixed solution;

[0056] Step 4: Pour the mixed solution into the base material in three parts...

Embodiment 2-8

[0057] Example 2-8: a high-strength concrete, the difference from Example 1 is that each component and its corresponding parts by weight are shown in Table 1.

[0058] Each component and parts by weight thereof in table 1 embodiment 1-8

[0059]

[0060]

Embodiment 9

[0061] Embodiment 9: A kind of high-strength concrete. The difference from Embodiment 1 is that step 1 specifically includes the following steps, the corresponding parts by weight are 350 parts of Portland cement, 480 parts of medium sand, 720 parts of Stones, 60 parts of mineral powder, 55 parts of fly ash, 50 parts of expanded perlite and 20 parts of metal ore aggregate are mixed in a drying barrel. The metal aggregate is composed of hematite ore and ilmenite ore Composition, and the weight ratio of hematite ore and ilmenite ore is 1:1.5, the rotation speed of the drying barrel is 600rpm, the time is 40min, and the temperature is controlled at 90°C to form a mixture.

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Abstract

The invention discloses high-strength concrete and a preparation process thereof and relates to the technical field of concrete. The problem is solved that poor binding property of component raw materials in concrete causes lower overall structural strength. The high-strength concrete comprises, by weight, the following components: 190-210 parts of water, 330-350 parts of Portland cement, 480-520parts of medium sand, 720-790 parts of cobbles, 30-60 parts of rock wool, 50-80 parts of expanded perlite, 4-6 parts of a retarder, 2.5-3.5 parts of water reducing agent, 60-80 parts of ore powder, 45-55 parts of pulverized fuel ash and 18-26 parts of fiber filler. The high-strength concrete has higher compactness and thus has good structural strength.

Description

technical field [0001] The invention relates to the technical field of concrete, more specifically, it relates to a high-strength concrete and a preparation process thereof. Background technique [0002] Concrete refers to the cement concrete obtained by using cement as the cementitious material, sand and stone as the aggregate, 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 with the notification number CN107188466A, a concrete formula is disclosed, which is made of the following components in proportion by weight: 100-150 parts of cement; 5-25 parts of iron powder; 760-880 parts of sand; 50-70 parts of coal ash; 15-34 parts of burning material in waste section; 15-30 parts of admixture; 170-190 parts of slurry; 36-85 parts of aggregate; 520 parts; gravel 1050-1100 parts. [0004] In the above-mentioned patents, slurry water, miner...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/04
CPCC04B28/04C04B2201/50C04B14/06C04B14/02C04B14/46C04B14/185C04B22/16C04B24/18C04B18/08C04B16/0633C04B18/12
Inventor 朱亚楠
Owner 上海兆捷实业发展有限公司
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