CN1122273A - Concrete demoulding spacing agent - Google Patents
Concrete demoulding spacing agent Download PDFInfo
- Publication number
- CN1122273A CN1122273A CN 94113814 CN94113814A CN1122273A CN 1122273 A CN1122273 A CN 1122273A CN 94113814 CN94113814 CN 94113814 CN 94113814 A CN94113814 A CN 94113814A CN 1122273 A CN1122273 A CN 1122273A
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- China
- Prior art keywords
- concrete
- spacing agent
- formwork
- demoulding
- parts
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
The spacing agent is compounded with starch, talcum powder and aqueous soup solution in certain proportion. Being a kind of white emulsion, it is easy to spread evenly on formwork. It forms a layer of powder between concrete component and formwork and this makes demoulding and formwork cleaning easy. The present invention is suitable for depositing concrete with various kinds of formwork and esp for steam-cured fabrication of concrete components.
Description
The present invention relates to a kind of concrete demoulding spacing agent.
Available coagulation soil demoulding spacing agent often occurs some in actual applications and is unfavorable for the demoulding and influences phenomenon such as quality of concrete members, prefabricated components particularly, as large-scale beam slab of Bao Fuliang, concrete roof truss and bridge etc., these members are when lifting, cleaning is quite taken a lot of work, and needs a lot of labor cleanings to be bonded at loose tool on the member, and the crane corresponding work intermittent time is longer, influence installation progress, failure costs is very high.In order to solve the amount of asking of the difficult demoulding of concrete component, a kind of concrete parting agent and preparation technology thereof are disclosed in CN1064698A, its releasing agent is the aqueous formulation that is mixed with by mould oil, regeneration machine oil or used oil, food plant oil foot soap, water, but because of easy reinforcing bar and concrete components of polluting such as the machine oil in its coating, during formwork, easily be sticky with, still influence demoulding quality.
The purpose of this invention is to provide a kind of cheaply, preparation is simple, is convenient to the demoulding, can improve the concrete demoulding spacing agent of demoulding quality.
Concrete demoulding spacing agent of the present invention share by weight ratio is: 0.7～2.8 part of starch, 1.5～4.5 parts of talcum powder, 8～12 parts of aqueous soup solution.
Above-mentioned aqueous soup solution, its concentration is counted 15～20Be ' by gravity Baume.
Below provide embodiments of the invention:
Embodiment one: get 1 part of starch, and 2 parts of talcum powder, 10 parts of aqueous soup solution (its concentration is 17Be '), formulated in combination becomes demoulding spacing agent.
Embodiment two: get 2 parts of starch, and 3 parts of talcum powder, 11 parts of aqueous soup solution (its concentration is 18Be '), formulated in combination becomes demoulding spacing agent.
Embodiment three: get 2.5 parts of starch, and 4 parts of talcum powder, 12 parts of aqueous soup solution (its concentration is 20Be '), formulated in combination becomes demoulding spacing agent.
The concrete preparation method of concrete demoulding spacing agent of the present invention is:
Earlier soap is dissolved in 70～85 ℃ the hot water, reaches the concentration that provides in the various embodiments described above, take out the share of regulation, to be cooled during to 15～25 ℃, add starch and the talcum powder of respectively stipulating share, stir, can use.
The present invention has the following advantages:
1, preparation is simple, with low cost.
2, be easy to brushing, available mechanically spraying because of its colloidal that is white in color, can make the module surface coating all Even.
3, stripping result is good: demoulding spacing agent of the present invention is in the brushing process, coating produces micro gasification, during cast concrete, member greatly weakens the absorption affinity of template, and form lining is done the rear surface and formed the harder porous interlayer of one deck, behind placing concrete, because the concrete heat of hydration, become a crisp top layer, cohesive force is little, the easily demoulding.
4, nontoxic, there is not corrosion, do not pollute, be convenient to flushing; Surface of concrete structure after the demoulding forms a kind of powder, very easily water flushing, the regular shape of retaining member.
That demoulding spacing agent of the present invention is applicable to is cast-in-place, prefabricated, steel form, plank sheathing or ground fetal membrane (mortar face, concrete surface), particularly is applicable to the steamed concrete member.
Claims (2)
1, a kind of concrete demoulding spacing agent is characterized in that the weight share meter, consists of: 0.7～2.8 part of starch; 1.5～4.5 parts of talcum powder; 8～12 parts of aqueous soup solution.
2, concrete demoulding spacing agent as claimed in claim 1, the concentration that it is characterized in that aqueous soup solution is 15～20Be '.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94113814 CN1122273A (en) | 1994-11-04 | 1994-11-04 | Concrete demoulding spacing agent |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94113814 CN1122273A (en) | 1994-11-04 | 1994-11-04 | Concrete demoulding spacing agent |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1122273A true CN1122273A (en) | 1996-05-15 |
Family
ID=5036830
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 94113814 Pending CN1122273A (en) | 1994-11-04 | 1994-11-04 | Concrete demoulding spacing agent |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1122273A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101544018B (en) * | 2009-05-11 | 2011-08-10 | 杨进林 | Concentrated parting agent for prestressed cored slab |
| CN101544019B (en) * | 2009-05-11 | 2011-08-10 | 杨进林 | Concentrated mold release agent for cement encaustic tile |
| CN103059619A (en) * | 2013-02-12 | 2013-04-24 | 浙江力源化工有限公司 | Isolating agent for reclaimed rubber |
| CN103343038A (en) * | 2013-06-27 | 2013-10-09 | 海安山河建材有限公司 | Preparation method of concrete member release agent |
-
1994
- 1994-11-04 CN CN 94113814 patent/CN1122273A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101544018B (en) * | 2009-05-11 | 2011-08-10 | 杨进林 | Concentrated parting agent for prestressed cored slab |
| CN101544019B (en) * | 2009-05-11 | 2011-08-10 | 杨进林 | Concentrated mold release agent for cement encaustic tile |
| CN103059619A (en) * | 2013-02-12 | 2013-04-24 | 浙江力源化工有限公司 | Isolating agent for reclaimed rubber |
| CN103343038A (en) * | 2013-06-27 | 2013-10-09 | 海安山河建材有限公司 | Preparation method of concrete member release agent |
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