Construction technology for compensation for anti-crack special concrete

A construction technology and concrete technology, applied in the treatment of formwork, the treatment of building materials, and the preparation of building components on site, can solve the problem of reducing the crack resistance, impermeability and durability of concrete, and cannot guarantee the use of buildings. functions, the inability to obtain social benefits, etc., to achieve the effect of reducing the difficulty of disassembly, low cost, and avoiding environmental pollution

Inactive Publication Date: 2020-02-07
KUNMING RAILWAY CONSTR COMPANY OF CHINA RAILWAY NO 8 ENG GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, in the existing concrete pouring process, the operation steps are rough or concentrated after large-volume concrete pouring, even if the anti-cracking agent is added, cracks will still occur, which will increase labor costs for repairing cracks (including digging, shoveling concrete, and waterproofing) , repairing concrete, backfilling soil), due to crack repair material costs, mechanical costs and other costs; the generation of concrete cracks will reduce the crack resistance, impermeability and durability of concrete, which cannot guarantee the use function of the building, and cannot obtain good results. social benefits

Method used

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  • Construction technology for compensation for anti-crack special concrete
  • Construction technology for compensation for anti-crack special concrete
  • Construction technology for compensation for anti-crack special concrete

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Embodiment 1

[0032] The invention provides a construction technique for compensating crack-resistant special concrete, wherein the main materials used include the following raw materials in parts by weight: 35-40 parts of cement, 30-45 parts of medium sand, 10-15 parts of fine sand, water 18-22 parts, 1-5 parts of anti-cracking agent, the auxiliary materials include 75wt%-80wt% of waste engine oil and 20wt%-25wt% of waste engine oil emulsifier by weight percentage;

[0033] And specifically in the present embodiment: wherein the main material used comprises the raw material of following parts by weight: 35 parts of cement, 30 parts of medium sand, 10 parts of fine sand, 18 parts of water, 2 parts of anti-cracking agent, described auxiliary material according to In terms of weight percentage, it includes 78wt% of waste engine oil and 22wt% of waste engine oil emulsifier;

[0034] The specific steps of the process are as follows:

[0035] a) Formwork: Formwork is performed on the model of t...

Embodiment 2

[0047] The invention provides a construction technique for compensating crack-resistant special concrete, wherein the main materials used include the following raw materials in parts by weight: 35-40 parts of cement, 30-45 parts of medium sand, 10-15 parts of fine sand, water 18-22 parts, 1-5 parts of anti-cracking agent, the auxiliary materials include 75wt%-80wt% of waste engine oil and 20wt%-25wt% of waste engine oil emulsifier by weight percentage;

[0048] And specifically in the present embodiment: wherein the main material used comprises the raw material of following parts by weight: 35 parts of cement, 30 parts of medium sand, 10 parts of fine sand, 18 parts of water, 2 parts of anti-cracking agent, described auxiliary material according to In terms of weight percentage, it includes 78wt% of waste engine oil and 22wt% of waste engine oil emulsifier;

[0049] The specific steps of the process are as follows:

[0050] a) Formwork: Formwork is performed on the model of t...

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Abstract

The invention discloses a construction technology for compensation for anti-crack special concrete, and particularly relates to the field of engineering construction. Adopted main materials comprise,by weight, 35-40 parts of cement, 30-45 parts of medium sand, 10-15 parts of fine sand, 18-22 parts of water and 1-5 parts of an anti-crack agent. Auxiliary materials comprise, by weight, 75%-80% of used oil and 20%-25% of a used oil emulgator. The technology comprises the following specific steps of modeling, level measurement, oil film brushing, pouring of the first time, plate dismounting, pouring of the second time, form removal and maintaining. According to the construction technology, through the manner of adopting different reinforcers for carrying out pouring on different concrete buildings, the technology can adapt to pouring of concrete buildings of different specifications, cracks are prevented from being generated to formed concrete, the regional and layered pouring manner is adopted, the possibility of mold expansion or vibration or cracks brought by large-volume concrete pouring can be effectively avoided, and therefore social benefits are improved.

Description

technical field [0001] The invention relates to the technical field of engineering construction, and more specifically, the invention relates to a construction technique of compensating crack-resistant special concrete. Background technique [0002] Special concrete refers to the special-purpose cement concrete made of new materials, industrial waste or new technology. Such as: 1. lightweight aggregate concrete (lightweight concrete, lightweight aggregate concrete); It will cause cracking of the building body, affecting the appearance or normal use of the building body; adding anti-cracking agent in the process of concrete production can effectively solve the difficulty of surface plastering caused by the smooth surface of polystyrene board and non-absorbent water, and Easy cracking and other problems, adding anti-cracking agent to cement mortar and concrete can greatly reduce the occurrence of cracks and hollowing in mortar and concrete, increase the strength of mortar, an...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E04G21/02E04G21/24E04G19/00C04B28/00
CPCC04B28/00E04G19/00E04G21/02E04G21/246C04B14/06C04B24/001
Inventor 祁俊魏焰朱伯东苏培生喻忆文
Owner KUNMING RAILWAY CONSTR COMPANY OF CHINA RAILWAY NO 8 ENG GRP
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