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Preparation method of high-strength, anti-cracking and anti-seismic concrete

A concrete, high-strength technology, applied in the field of seismic concrete preparation, high-strength, and crack resistance, can solve problems such as difficulty in meeting construction requirements, and achieve the effects of not easy cracking, enhanced strength, and improved compressive strength and tensile strength.

Inactive Publication Date: 2020-06-19
广东承沐建设工程有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The compressive strength of existing ordinary concrete can only reach about 30-40MPa, and it is difficult to meet the construction requirements in some bridges and other engineering constructions with high strength requirements. Therefore, there is still room for improvement

Method used

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  • Preparation method of high-strength, anti-cracking and anti-seismic concrete
  • Preparation method of high-strength, anti-cracking and anti-seismic concrete

Examples

Experimental program
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Effect test

Embodiment 1

[0039] The preparation method of high-strength, crack-resistant, and earthquake-resistant concrete. The components and mass parts of the high-strength, crack-resistant, and earthquake-resistant concrete are shown in Table 1.

[0040] The preparation of high-strength, crack-resistant, and earthquake-resistant concrete includes the following steps:

[0041] S1. Preparation of the first mixture: In a stirring tank, add corresponding parts by mass of water and cement, and stir to prepare the first mixture. The stirring speed is 100 r / min, and the stirring time is 5 minutes. In this step, the stirring tank can be a cement mixer, but not limited to a cement mixer.

[0042] S2. Preparation of the second mixture: add corresponding parts by mass of water reducer and mixed fibers to the first mixture while stirring, and stir evenly to obtain the second mixture.

[0043] S3. Preparation of the third mixture: In the gravel mixer, under normal temperature conditions, add the corresponding...

Embodiment 2

[0046] The difference between the preparation method of high-strength, crack-resistant, and earthquake-resistant concrete and that of Example 1 is that the components and mass parts of the high-strength, crack-resistant, and earthquake-resistant concrete are shown in Table 1.

[0047] The preparation of high-strength, crack-resistant, and earthquake-resistant concrete includes the following steps:

[0048] S1. Preparation of the first mixture: In a stirring tank, add corresponding parts by mass of water and cement, and stir to prepare the first mixture. The stirring speed is 120 r / min, and the stirring time is 7 minutes. In this step, the stirring tank can be a cement mixer, but not limited to a cement mixer.

[0049]S2. Preparation of the second mixture: add corresponding parts by mass of water reducer and mixed fibers to the first mixture while stirring, and stir evenly to obtain the second mixture.

[0050] S3. Preparation of the third mixture: In the gravel mixer, under n...

Embodiment 3

[0054] The difference between the preparation method of high-strength, crack-resistant, and earthquake-resistant concrete and that of Example 2 is that the components and mass parts of the high-strength, crack-resistant, and earthquake-resistant concrete are shown in Table 1.

[0055] The preparation of high-strength, crack-resistant, and earthquake-resistant concrete includes the following steps:

[0056] S1. Preparation of the first mixture: In a stirring tank, add corresponding parts by mass of water and cement, and stir to prepare the first mixture. The stirring speed is 150 r / min, and the stirring time is 8 minutes.

[0057] S2. Preparation of the second mixture: add corresponding parts by mass of water reducer and mixed fibers to the first mixture while stirring, and stir evenly to obtain the second mixture.

[0058] S3. Preparation of the third mixture: In the gravel mixer, under normal temperature conditions, add the corresponding mass parts of coarse aggregate and fin...

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Abstract

The invention relates to the field of concrete preparation, in particular to a preparation method of high-strength, anti-cracking and anti-seismic concrete, which comprises the following components inparts by mass: 40 to 55 parts of water, 86 to 108 parts of cement, 220 to 300 parts of fine aggregate, 100 to 148 parts of coarse aggregate, 62 to 70 parts of fly ash, 25 to 30 parts of mixed fibersand 5 to 12 parts of a water reducing agent. The preparation method of the high-strength, anti-cracking and anti-seismic concrete comprises the following steps: S1, preparing a first mixture, S2, preparing a second mixture, S3, preparing a third mixture, and S4, preparing concrete. The concrete has the advantage that the compressive strength of the concrete is improved.

Description

technical field [0001] The invention relates to the technical field of concrete preparation, more specifically, it relates to a preparation method of high-strength, crack-resistant and shock-resistant concrete. Background technique [0002] The term concrete refers to the cement concrete obtained by using cement as the cementitious material, sand and stone as the aggregate, mixed with water in a certain proportion, stirred, shaped and maintained, also known as ordinary concrete, which has become the most widely used in modern construction projects. Wide range of building materials. [0003] The compressive strength of the existing ordinary concrete generally can only reach about 30-40MPa, and it is difficult to meet the construction requirements in some bridges and other engineering constructions with high strength requirements. Therefore, there is still room for improvement. Contents of the invention [0004] The object of the present invention is to provide a method for...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/06C04B40/00C04B20/02C04B14/28C04B111/20
CPCC04B28/065C04B40/0028C04B20/023C04B2201/50C04B2201/52C04B2111/2038C04B18/027C04B14/06C04B14/28C04B14/068C04B18/08C04B16/0633C04B14/48C04B2103/302
Inventor 诸允诺
Owner 广东承沐建设工程有限公司
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