Thixotropic and self-curing material for slip-form construction concrete and preparation method thereof

A technology of concrete and self-curing, which is applied in the preparation of the thixotropic and self-curing materials, and in the field of thixotropic and self-curing materials for slip-form construction concrete, which can solve the problems of difficult-to-shape concrete in slip-form construction, pockmarked concrete structures, and To prevent problems such as cracking, to achieve the effect of easy rapid prototyping of sliding mold, reduction of manual maintenance process, and good thixotropic performance

Active Publication Date: 2019-02-22
河北久联建筑工程有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, compared with similar foreign equipment, domestic equipment generally has the disadvantage of insufficient power
At the same time, due to the lack of understanding of the rapid prototyping mechanism of slipform concrete, the concrete structure using slipform construction is prone to defects such as pockmarks, cracks, orange peel, swelling, and collapsed edges, and the slipform construction of concrete is not easy. forming
At the same time, at present, the maintenance of concrete after slipform construction needs to be covered with a film, which will cause some pollution to the environment

Method used

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  • Thixotropic and self-curing material for slip-form construction concrete and preparation method thereof
  • Thixotropic and self-curing material for slip-form construction concrete and preparation method thereof
  • Thixotropic and self-curing material for slip-form construction concrete and preparation method thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] Thixotropic and self-curing materials are formulated as follows:

[0038] 20% polycarboxylate superplasticizer masterbatch: 12kg;

[0039] Sodium lauryl sulfate: 0.8kg;

[0040] Sodium dodecylbenzenesulfonate: 5kg;

[0041] Xanthan gum: 0.4kg;

[0042] Hydroxyethyl methyl cellulose ether: 1kg;

[0043] Warm rubber: 0.18kg;

[0044] Water: 980.62kg.

[0045] The preparation process is as follows: the xanthan gum, hydroxyethyl methyl cellulose ether and Wenlun gum in the components are first added to the water through sieve analysis and feeding method and stirred to dissolve evenly, and then polycarboxylate superplasticizer is added , Sodium dodecylsulfate and sodium dodecylbenzenesulfonate continue to stir, mixing and stirring for 50 minutes, until they dissolve into a uniform solution without agglomeration.

[0046] The slip form construction process is as follows:

[0047] (1) The C40 concrete mix ratio for the 1.18-meter-high anti-collision barrier is as follow...

Embodiment 2

[0063] Thixotropic and self-curing materials are formulated as follows:

[0064] 40% polycarboxylate superplasticizer masterbatch: 5kg;

[0065] Sodium lauryl sulfate: 0.5kg;

[0066] Sodium dodecylbenzenesulfonate: 3kg;

[0067] Xanthan gum: 0.2kg;

[0068] Hydroxypropyl methylcellulose ether: 0.7kg;

[0069] Modified starch ether: 0.05kg;

[0070] Water: 990.55kg.

[0071]The preparation process is as follows: the xanthan gum, hydroxypropyl methyl cellulose ether and modified starch ether in the components are first added into water by sieve analysis and feeding method, stirred to make them uniformly dissolved, and then polycarboxylate water-reducing The agent, sodium dodecylsulfate and sodium dodecylbenzenesulfonate continue to stir for 40 minutes until they dissolve into a uniform solution without agglomerates.

[0072] The slip form construction process is as follows:

[0073] (1) The C35 concrete mix ratio of 0.5m high drainage ditch is as follows:

[0074] P.O42...

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Abstract

The invention relates to a thixotropic and self-curing material for slip-form construction concrete. The material comprises, by mass parts, 3-15 parts of polycarboxylate water reducing agent; 0.2-1 part of lauryl sodium sulfate; 2-6 parts of sodium dodecyl benzene sulfonate; 0.1-0.5 part of xanthan gum; 0.5-1.2 parts of cellulose ether; 0.02-0.2 part of internal curing agent; the balance water. The invention also relates to a preparation method of the thixotropic and self-curing material. The thixotropic and self-curing material can effectively overcome the defects such as pitting, cracking, orange peel, bulging, collapse and slipping of the slip-form construction concrete structure, and is smooth and level in appearance, capable of achieving slip-form molding rapidly and capable of achieving concrete self curing.

Description

technical field [0001] The invention relates to the technical field of slip-form construction, in particular to a thixotropic and self-curing material for concrete in slip-form construction and a preparation method for the thixotropic and self-curing material. Background technique [0002] For the construction of cement concrete anti-collision barriers, the traditional prefabrication and then installation process is still used in China, while the new technology of slip-form construction has been widely used abroad. The anti-collision guardrail constructed by sliding form has the advantages of good rigidity, high strength, smooth surface, beautiful linearity, uniform color and uniform cutting seam, etc. Compared with the prefabrication process, the slip form construction can save the prefabrication site and prefabrication molds, without the need for handling and hoisting procedures, and the construction speed is greatly improved. Not only that, slipform construction can be e...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B24/38
CPCC04B40/0039C04B2103/0085C04B2103/302C04B24/16C04B24/20C04B24/38C04B24/383
Inventor 高礼雄谭文君崔皓
Owner 河北久联建筑工程有限公司
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