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High-strength concrete and preparation process thereof

A concrete, high-strength technology, applied in the field of concrete, can solve problems such as easy fracture, and achieve the effect of improving the overall structural strength, long life, and improving the density

Inactive Publication Date: 2019-04-16
上海练定新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] Aiming at the problem in the prior art that the overall structural strength of the concrete after solidification and molding is low, which causes it to easily break when it is subjected to a large impact, the first purpose of the present invention is to provide a high-strength concrete. A network structure composed of metal oxides and metal fibers is formed inside to solve the above technical problems. It has good structural strength after curing and molding, and it is not easy to break when it bears a large impact

Method used

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  • High-strength concrete and preparation process thereof

Examples

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Effect test

Embodiment 1

[0049] 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:

[0050] Step 1: Stir and dry the stones, medium sand, fly ash, Portland cement, and mineral powder in the drying barrel with the corresponding parts by weight. The temperature is controlled at 100°C, the time is 120min, and the stirring speed is 1500rpm. get the mixture;

[0051] Step 2, adding metal powder composition and metal fiber in corresponding parts by weight to the mixture, stirring and drying, the temperature is controlled at 50°C, the time is 40min, and the stirring speed is 800rpm, to obtain the base material;

[0052] Step 3, putting water, water-soluble polyaniline and sodium tripolyphosphate in corresponding parts by weight into a mixing tank for stirring for 10 minutes at a stirring speed of 600 rpm to obtain a mixed solution;

[0053] Step 4: Pour the base material into the mixed solut...

Embodiment 2-8

[0055] 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.

[0056] Each component and parts by weight thereof in table 1 embodiment 1-8

[0057]

Embodiment 9

[0058] Embodiment 9: A kind of high-strength concrete. The difference from Embodiment 1 is that the metal powder composition in step 2 is composed of iron powder, copper powder and aluminum powder, and the weight parts of iron powder, copper powder and aluminum powder The number ratio is 1:1:2.5, and the particle diameter of the metal powder composition is 6 μm.

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Abstract

The invention discloses high-strength concrete and a preparation process thereof, relates to the technical field of concrete and solves the problem that concrete is easily broken when subjected to large impact since the overall structural strength of the concrete after curing and molding is low. The concrete is prepared from, by weight, 230-240 parts of Portland cement, 170-190 parts of water, 750-800 parts of medium sand, 1,100-1,200 parts of cobbles, 50-70 parts of fly ash, 70-90 parts of mineral powder, 40-60 parts of metal fibers, 3-8 parts of water-soluble polyaniline, 10-16 parts of a metal powder composition, 5-8 parts of a reinforcing agent and 2-3 parts of a retarder. The high-strength concrete has high structural strength after curing and molding and is unlikely to be broken whensubjected to large impact.

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] A Chinese invention patent with the notification number CN108285309A discloses a permeable concrete and its preparation method. The powder required for the permeable concrete consists of: 35% to 50% cement, 25% to 40% fly ash, and 10% to 25% concrete ash. %, latex powder 1-3%, water-retaining agent 0.2-0.4%, water-reducing agent 0.1-0.3%. The permeable concrete powder is used according to the following composition and weight percentage: 10-20% of permeable concrete powder, 60-70% of aggregate,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/04
CPCC04B28/04C04B2201/50C04B14/06C04B14/02C04B18/08C04B14/48C04B14/34C04B24/28C04B14/4643C04B22/16C04B14/42
Inventor 刘斌
Owner 上海练定新材料科技有限公司
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