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High-strength concrete and production process thereof

A technology of high-strength concrete and ceramsite, applied in the field of concrete, can solve the problems of self-shrinking cracking of concrete, reduction of water-cement ratio, hidden dangers of safety, etc., and achieve the effect of promoting cement hydration, reducing influence and increasing speed.

Active Publication Date: 2021-07-20
乐陵山水水泥有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In view of the above-mentioned related technologies, the inventor believes that in the related technologies, in order to increase the strength of concrete, the amount of cement added is chosen to increase, which leads to a decrease in the water-cement ratio in the concrete. Self-shrinking and cracking, which poses a safety hazard

Method used

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

Examples

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Effect test

preparation example 1

[0035] S1. Sieve the ceramsite, the particle size of ceramsite is D 90 =5mm, mix 10kg of ceramsite with 25kg of infiltration water, and make water storage ceramsite after ceramsite absorbs water for 3 hours;

[0036] S2, the water-storage ceramsite is fished out from the soaking water and mixed evenly with 3kg of water-absorbent resin to prepare the water-storage material;

[0037] S3, first mixing the water storage material with 5kg of unsaturated resin, and then filtering and separating the water storage material sticking to the unsaturated resin from the unsaturated resin, thereby preparing the bonding material;

[0038] S4, mixing the bonding material with 18kg of pressed prismatic steel fibers to prepare a water replenishing material.

preparation example 2

[0040] S1. Sieve the ceramsite, the particle size of ceramsite is D 90 =10mm, mix 15kg of ceramsite with 25kg of infiltration water, and make water storage ceramsite after ceramsite absorbs water for 4.5h;

[0041] S2, the water-storage ceramsite is fished out from the soaking water and mixed evenly with 5kg of water-absorbent resin to prepare the water-storage material;

[0042] S3, first mixing the water storage material with 10kg of unsaturated resin, and then filtering and separating the water storage material sticking to the unsaturated resin from the unsaturated resin, so as to prepare the bonding material;

[0043] S4. Mix the bonding material with 20kg of pressed prismatic steel fibers to prepare a water replenishing material.

preparation example 3

[0045]S1. Sieve the ceramsite, the particle size of ceramsite is D 90 =15mm, mix 20kg of ceramsite with 45kg of infiltration water, and make water storage ceramsite after ceramsite absorbs water for 6 hours;

[0046] S2, the water-storage ceramsite is fished out from the soaking water and mixed evenly with 7kg of water-absorbing resin to prepare the water-storage material;

[0047] S3, first mixing the water storage material with 15kg of unsaturated resin, and then filtering and separating the water storage material sticking to the unsaturated resin from the unsaturated resin, so as to prepare the bonding material;

[0048] S4. Mix the bonding material with 22kg of pressed prismatic steel fibers to prepare a water replenishing material.

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Abstract

The invention relates to the field of concrete, and particularly discloses high-strength concrete and a production process thereof. The high-strength concrete is prepared from the following raw materials: 910 to 1030 parts of stone, 520 to 620 parts of sand, 385 to 455 parts of cement, 125 to 155 parts of fly ash, 170 to 200 parts of stirring water, 7 to 15 parts of an additive and 190 to 270 parts of a water replenishing material, wherein the water replenishing material is formed by bonding a bonding material and steel fibers. The production process comprises the following steps: mixing the stone with the sand, and simultaneously adding the powder prepared from the cement and the fly ash, the stirring water, the additive and the water replenishing material into a concrete stirring tank for stirring and mixing. The high-strength concrete disclosed by the invention has the advantage of effectively reducing self-shrinkage cracking of the concrete in an early strength process; and in addition, the production process has the advantages that the preparation method is simple, and a finished product is easy to obtain.

Description

technical field [0001] This application relates to the field of concrete, more specifically, it relates to a high-strength concrete and its production process. Background technique [0002] High-strength concrete refers to concrete with a strength grade of C60 and above. It is a concrete obtained by conventional production of raw materials such as cement, sand, stone, and water-reducing agent or mixture. As an energy-saving, environmentally friendly and green building material, high-strength concrete is widely used in high-rise building structures, long-span bridge structures and some special structures due to its advantages of high compressive strength, strong deformation resistance, high density and low porosity. Applications. [0003] In the related art, the Chinese invention patent application with the publication number CN105819779A discloses a C60-grade high-strength recycled concrete and its preparation method. This C60-grade high-strength recycled concrete is prepar...

Claims

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Application Information

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IPC IPC(8): C04B28/04C04B20/10C04B18/02
CPCC04B28/04C04B20/1033C04B18/027C04B2201/50C04B18/08C04B14/02C04B14/06C04B2103/302C04B14/48C04B24/26C04B2103/44
Inventor 章俊峰宋承瑄张国卫
Owner 乐陵山水水泥有限公司
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