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Green high-performance concrete

A high-performance concrete and green technology, applied in the field of concrete production, can solve the problems of poor impact resistance, low mechanical properties, and inability to directly apply high-performance retarder, so as to increase component content, improve interface performance, and improve stability. performance effect

Active Publication Date: 2017-07-07
南宁市嘉大混凝土有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Among today's waste resources, ABS engineering plastics are a kind of resources that are difficult to handle. The waste ABS engineering plastics produced every year is about 2 million tons. Directly applied to the preparation of high-performance retarded concrete, such as directly applied to the preparation of high-performance concrete, will have a great influence on the strength of concrete. Therefore, it is necessary to improve the waste ABS engineering plastics so that it can be applied to high-performance concrete. Concrete production to realize rational recycling of waste resources

Method used

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Examples

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Effect test

Embodiment 1

[0055] A kind of green high-performance concrete, it is made according to the raw material of following weight fraction:

[0056] 280 parts of cement;

[0057] 160 parts of water;

[0058] 340 parts of fine aggregate;

[0059] Coarse aggregate 1250 parts;

[0060] 42 parts of fly ash;

[0061] Viscosity-reducing polycarboxylate superplasticizer 11.5 parts;

[0062] 220 parts of graft modified waste ABS engineering plastic particles;

[0063] 0.2 parts of defoamer;

[0064] 20 parts of nano silicon carbide;

[0065] Since this embodiment contains nano-silicon carbide, it has good scalability and water resistance, can cover small cracks, and has a self-repairing effect on micro-cracks, so it has great impact on the strength, hardness, aging resistance, durability, etc. of concrete. The performance has been significantly improved; at the same time, due to the low water-cement ratio of this embodiment, the strength, impermeability, and durability of the concrete after hardeni...

Embodiment 2

[0087] A kind of green high-performance concrete, it is made according to the raw material of following weight fraction:

[0088] 305 parts of cement;

[0089] 180 parts of water;

[0090] 375 parts of fine aggregate;

[0091] 1285 parts of coarse aggregate;

[0092] 45 parts of fly ash;

[0093] Viscosity-reducing polycarboxylate superplasticizer 12.1 parts;

[0094] 275 parts of graft modified waste ABS engineering plastic particles;

[0095] 0.7 part of defoamer;

[0096] 25 parts of nano silicon carbide.

[0097] Since this embodiment contains nano-silicon carbide, it has good scalability and water resistance, can cover small cracks, and has a self-repairing effect on micro-cracks, so it has great impact on the strength, hardness, aging resistance, durability, etc. of concrete. The performance has been significantly improved; at the same time, due to the low water-cement ratio of this embodiment, the strength, impermeability, and durability of the concrete after har...

Embodiment 3

[0119] A kind of green high-performance concrete, it is made according to the raw material of following weight fraction:

[0120] 330 parts of cement;

[0121] 200 parts of water;

[0122] 410 parts of fine aggregate;

[0123] Coarse aggregate 1320 parts;

[0124] 48 parts of fly ash;

[0125] Viscosity-reducing polycarboxylate superplasticizer 12.7 parts;

[0126] 430 parts of graft modified waste ABS engineering plastic particles;

[0127] 1.2 parts of defoamer;

[0128] 30 parts of nano silicon carbide.

[0129] Since this embodiment contains nano-silicon carbide, it has good scalability and water resistance, can cover small cracks, and has a self-repairing effect on micro-cracks, so it has great impact on the strength, hardness, aging resistance, durability, etc. of concrete. The performance has been significantly improved; at the same time, due to the low water-cement ratio of this embodiment, the strength, impermeability, and durability of the concrete after harde...

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Abstract

The invention discloses a green high-performance concrete, which is prepared from the following raw materials in parts by weight: 280-330 parts of cement, 260-300 parts of water, 340-410 parts of fine aggregate, 1250-1320 parts of coarse aggregate, 42-48 parts of fly ash, 11.5-12.7 parts of viscosity reducing polycarboxylate superplasticizer, 220-430 parts of grafted waste ABS engineering plastic particles, 0.2-1.2 parts of antifoaming agents, and 20-30 parts of nanosilicon carbide. According to the invention, the waste ABS engineering plastics can be reasonably utilized to produce the concrete, and the produced concrete is high in strength; thus, reasonable recycling of waste resources is realized. The scheme can be applied to the technical field of concrete production.

Description

technical field [0001] The invention relates to the technical field of concrete production, in particular to a green high-performance concrete. Background technique [0002] In many civil engineering constructions, concrete is widely used and used so many times, especially in recent years, a relatively new concrete technology is developing rapidly and applied to many practical engineering projects, that is high performance concrete. High-performance concrete is considered to be the most comprehensive concrete in the world due to its excellent properties such as high durability, high workability, high strength and high volume stability. It has been used in many important projects so far, especially In bridges, high-rise buildings, harbor buildings and other projects. High-performance concrete has excellent properties that ordinary concrete cannot match. Research on high-performance concrete is one of the hottest topics in civil engineering today. If high-performance concret...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/04C08F279/04C08F222/06C04B111/20
CPCC04B28/04C04B2111/00017C04B2111/00146C04B2111/00293C04B2111/20C04B2201/50C08F279/04C08F222/06C04B14/02C04B18/08C04B18/20C04B14/324C04B20/008C04B2103/302C04B2103/50
Inventor 王育宏李健苏华升
Owner 南宁市嘉大混凝土有限公司
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