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Concrete de-molding agent

A technology of concrete release agent and auxiliary agent, which is applied in the field of concrete, can solve the problems of reducing the strength of concrete, and achieve the effects of enhancing surface strength, increasing specific surface area, and increasing contact area

Active Publication Date: 2018-11-23
西安龙宾立强环保科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is to provide a concrete release agent for the problem that the concrete strength will be reduced after the use of the current concrete release agent

Method used

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Effect test

preparation example Construction

[0032] Excipients: Mix sodium citrate, potassium chloride, and sodium secondary alkyl sulfonate at a mass ratio of 5:1~2:1 to obtain the excipients. A preparation method for a cross-linked complex, comprising the steps of:

[0033] (1) Mix polyether polyol and mannitol according to the mass ratio of 4:1~2, dehydrate at 110~125°C and 0.1MPa for 2~4 hours, then cool down to 40~55°C to obtain the pretreated product, take Add diphenylmethane diisocyanate to the pretreated substance at a mass ratio of 5:1~2 and mix, react at 80~90°C for 3~5h, cool down to 40~65°C, add mixed oil with 40~60% of the pretreated substance, Mix the silane coupling agent with 10~15% of the pretreatment substance, stir at 250~350r / min for 20~40min, and let it stand for 3~6h to obtain a prepolymer for later use;

[0034](2) According to the mass ratio of 1:0.5~0.8:12~18, take carbomer, polyallylamine, and water, mix and stir in the container, let it stand at room temperature for 4~8h, at 65~80℃, at 300~450...

Embodiment 1

[0045] Auxiliary: Mix bentonite, kaolin and zeolite at a mass ratio of 5:1:1 to obtain the auxiliary.

[0046] Grinding aid: triethanolamine.

[0047] Silane coupling agent: silane coupling agent KH550.

[0048] Mixed oil: Mix castor oil, rapeseed oil, and olive oil in a mass ratio of 4:1:1 to get mixed oil.

[0049] Activation medium: in parts by mass, take 20 parts of glucose, 30 parts of peptone, 20 parts of potato, 1 part of Na 2 HPO 4 , 1 part of NaH 2 PO 4 , 20 parts of agar, 900 parts of water, and sterilized at 121°C for 15 minutes to obtain the activated medium.

[0050] Fermentation medium: in parts by mass, take 20 parts of glucose, 30 parts of peptone, 30 parts of yeast powder, 2 parts of citric acid, and 1 part of Na 2 HPO 4 , 1 part of NaH 2 PO 4 , 20 parts of agar, 900 parts of water, and sterilized at 121°C for 15 minutes to obtain the fermentation medium.

[0051] Excipients: mix sodium citrate, potassium chloride, and sodium secondary alkyl sulfonat...

Embodiment 2

[0064] Auxiliary: Mix bentonite, kaolin and zeolite at a mass ratio of 5:1:2 to obtain the auxiliary.

[0065] Grinding aid: Triisopropanolamine.

[0066] Silane coupling agent: silane coupling agent KH560.

[0067] Mixed oil: Mix castor oil, rapeseed oil and olive oil according to the mass ratio of 6:1:2 to get the mixed oil.

[0068] Activation medium: in parts by mass, take 40 parts of glucose, 55 parts of peptone, 30 parts of potato, 4 parts of Na 2 HPO 4 , 4 parts NaH 2 PO 4 , 30 parts of agar, 1000 parts of water, and sterilized at 121°C for 20 minutes to obtain the activated medium.

[0069] Fermentation medium: by mass parts, take 40 parts of glucose, 55 parts of peptone, 50 parts of yeast powder, 5 parts of citric acid, 4 parts of Na 2 HPO 4 , 4 parts NaH 2 PO 4 , 30 parts of agar, 1000 parts of water, and sterilized at 121°C for 20 minutes to obtain the fermentation medium.

[0070] Excipients: mix sodium citrate, potassium chloride, and sodium secondary al...

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Abstract

The invention discloses a concrete de-molding agent and belongs to the field of concrete. According to the concrete de-molding agent, polyether polyol, mannitol and the like are used as raw materials,and are dehydrated and crossly linked to prepare a pre-polymer; the pre-polymer is matched with activated steel slag, gaps of slurry can be filled and a micro-structure at a transition period is improved; a hydration process is accelerated; kerosene and a grinding aid are matched to use so that the ball milling efficiency can be improved, the porosity in the steel slag is further enriched and thespecific surface area is enlarged; then active substances, which can participate in hydration, in a system can be sufficiently exposed; the de-molding effect is remarkably improved and the surface strength of the concrete is enhanced. Added carbomer can form gel under an alkaline environment of the system and excellent water retention and water holding performance of the gel can ensure that hydration reaction is sufficient and complete in a utilization process; CO2 is introduced so that the pH (Potential of Hydrogen) of the system is reduced and part of the carbomer is transformed into a dissolved state from a gel state again, and furthermore, the de-molding effect in an acting process of the concrete is facilitated. By adopting the concrete de-molding agent, the problem that the strengthof the concrete is reduced after an existing concrete de-molding agent is used is solved.

Description

technical field [0001] The invention belongs to the field of concrete, and in particular relates to a concrete release agent. Background technique [0002] Prefabricated concrete components are building components prefabricated in factories with concrete as the basic material. Including beams, slabs, columns and building decoration accessories, etc., for assembly on the construction site, which is the material basis for the industrialization of construction. It has the following characteristics: good structural performance, the use of factory production can effectively ensure the mechanical properties of the structure, and small discreteness. Especially for the production of standard shaped components, the prefabricated component factory has stable construction conditions and standardized construction procedures, which is easier to guarantee quality than cast-in-place components. The construction speed is fast, which can prepare for the construction in advance. During the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10M159/12C10M167/00B28B7/38C10N30/06C10N40/36
CPCB28B7/38C10M159/12C10M167/00C10M2201/05C10M2201/062C10M2201/081C10M2201/087C10M2201/103C10M2201/16C10M2203/10C10M2207/022C10M2207/40C10M2207/402C10M2209/084C10M2209/103C10M2209/12C10M2215/042C10M2215/14C10M2217/022C10M2223/10C10M2227/04C10N2030/06C10N2040/36C10N2010/04
Inventor 王敏陈建春胡晓玉
Owner 西安龙宾立强环保科技有限公司
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