CN1103887A - Strip agent for concrete - Google Patents
Strip agent for concrete Download PDFInfo
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- CN1103887A CN1103887A CN 93120015 CN93120015A CN1103887A CN 1103887 A CN1103887 A CN 1103887A CN 93120015 CN93120015 CN 93120015 CN 93120015 A CN93120015 A CN 93120015A CN 1103887 A CN1103887 A CN 1103887A
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Abstract
The concrete parting agent is composed of organic adhesive of carboxy-methyl sodium cellulose or starch alkali adhesive or polyvinyl alcohol or urea formaldehyde adhesive or polyvinyl alcohol-formaldehyde adhesive, and grey mineral powder, water, antifreezer, antiseptics and antirusting agent. The parting agent features easy demoulding without sticking of form, firm adhered concrete finish, able to be used under temp. lower than 0 deg.C, suitable colour, and low cost. Each kg of it may coat 10-15 m2, and when used in concrete construction and production, it has higher tecnical and economic benefits than prior art parting agent.
Description
The present invention relates to that a kind of what do not contain mineral or fatty oil is the aqueous separating agent of main component with macromolecular compound and grey breeze.
The effect of concrete parting agent is to be applied to before concrete depositing on the template, bonds mutually to prevent hardened concrete and template.In prior art, normally adopt hydrophobic substance as releasing agent, as (giving up) machine oil, paraffin solution, the solution of oily wax emulsion and soap.Its shortcoming is to immerse oily matter at concrete surface, makes the bonding of architectural concrete insecure; Oily matter also can reduce the bond stress between reinforcing bar and the concrete; Oil wax emulsion can also lose efficacy by breakdown of emulsion under subzero temperature; And releasing agent cost height.In addition, also have a kind of releasing agent, with polyvinyl formal binding agent and talcous mixture, also because of the form removal difficulty, be white in color, shortcomings such as cost height fail to be used widely.
The objective of the invention is to overcome the pollution of the materials such as oiliness that exist in the prior art to concrete surface, cause the bonding of fitting up insecure, subzero temperature uses shortcomings such as restricted and form removal difficulty, a kind of new releasing agent is proposed, make the bonding of architectural concrete firm, the demoulding is laborsaving, and color is suitable, sub-zero zero can be used, and low price.
Concrete parting agent of the present invention mainly contains soluble organic adhesive, grey breeze and other additives.Additive is meant when the construction demoulding during at subzero temperature (temperature under the zero degree) environment, need contains frostproofer, to reduce the freezing point of the aqueous solution; The releasing agent that is used for punching block need contain rust-preventive agent, is perishable material as the organic binder bond of selecting for use in addition, needs to add sanitas.Through a large amount of screening studies, concrete parting agent composition of the present invention is made up of organic binder bond, water, grey breeze, frostproofer, sanitas and rust-preventive agent, and its composition (weight) content is:
Soluble organic adhesive (solid content) 1-12 part
Grey breeze 10-100 part
100 parts in water
Frostproofer 0-40 part
Sanitas 0-5 part
Rust-preventive agent 0-10 part
The present invention realizes as follows: be mixed with the organic binder bond aqueous solution by described content, add additives such as frostproofer, sanitas, rust-preventive agent as required in the aqueous solution, adding specific surface area at last again is 2000-10000 centimetre
2The grey breeze of/gram with mortar mixer, stirring 10-15 minute, stirs into uniform mixture, promptly is mixed with concrete parting agent of the present invention
Soluble organic adhesive in the mold release compositions of the present invention, being meant in Xylo-Mucine (chemical paste), starch alkali binding agent, polyvinyl alcohol adhesive (1788), urea aldehyde binding agent, the polyvinyl formal binding agent (107 glue) any, also can be two or more mixture among them.Grey breeze in the agent mixture of the present invention is meant any in flyash, volcanic ash, GBFS, pumice sand, zeolite powder, the perlite powder, also can be the two or more mixture among them.
The content of the contained major ingredient in the mold release compositions of the present invention (weight) is with organic binder bond (solid content) 4-10 part, and grey breeze 50-70 part is better.With 6 parts of organic adhesives (solid content), the grey breeze is best for 60 parts.
Contained frostproofer in the agent mixture of the present invention; can be in inferior sodium nitrate, salt of wormwood, urea or the nitrocalcite any; their content in composition can be selected according to the height of demoulding environment subzero temperature; generally in 1-40 part (weight); add sanitas; can be the aqueous solution of formaldehyde, wherein the content of 37% formalin should be 0.1-5 part (weight), contained rust-preventive agent can be in inferior sodium nitrate, unslaked lime or the white lime any.Better content in composition is 0.5-5 part.
By the resulting concrete parting agent of the present invention of aforesaid method step, per kilogram can be coated with 10-15 square metre.Show by test and practical application: the cohesive force that surface plastering is fitted up improves about 53%, and it is about 42% that the demoulding is omitted, the concrete surface gray after the demoulding, identical with concrete, subzero temperature minimum use temperature-35 ℃, cost of material is cheap, thereby greatly reduces cost.
This releasing agent is applicable to punching block, wooden model and other multiple template, can be widely used in concrete construction and production, as normal curing, natural curing and vapor cure etc.
Example 1
In 100 kg of water, add 6 kilograms of Xylo-Mucines (chemical paste), its dissolving is mixed with the aqueous solution; Adding is also dissolved 30 kilograms Sodium Nitrite; Add 4 kilogram of 37% formalin; With specific surface area is 3000cm
2The flyash of/g adds in the above solution for 60 kilograms, stirs with mortar mixer and is the finished product releasing agent in 15 minutes.The per kilogram releasing agent is coated with 11 square metres of punching blocks.Demoulding shearing stress is measured in normal curing 24 hours, is 0.136MP with machine oil, is 0.078MPa with this releasing agent, reduces by 42%; Demoulding shear-stress is surveyed in vapor cure 8 hours, is 0.197MPa with machine oil, is 0.160MPa with this releasing agent, reduces by 20%.Normal curing 28 days, the bonding shear strength of plastering: being 2.03MPa during with machine oil, is 3.10MPa with this releasing agent, has improved 53%.The minimum use temperature-15 of releasing agent ℃.Template non-corroding phenomenon.
Example 2
Prepare the aqueous solution of the commercially available starch alkali binding agent that contains 8 kilograms (solid contents) in 100 kg of water; The formalin that adds 4 kilogram 37%; 4 kilograms calcium lime powder and specific surface area are 3500 centimetres
270 kilograms of the volcanic ash of/gram are used mortar mixer, stir and promptly get releasing agent in 10 minutes.This releasing agent is used in the production of 5000 * 1000 * 100 millimeters vapor cure hollow concrete building floors, and the per kilogram releasing agent is coated with 12 square metres.Concrete does not have mold sticking after the form removal, surfacing, and no greasy dirt immerses, and the deformed bar bond stress is not had influence, template non-corroding phenomenon.
Example 3
Prepare 8 kilograms of commercial polyethylene of adding alcohol binding agents (1788) in 100 kg of water, be heated to 60 ℃, be stirred to dissolving fully; Adding specific surface area is 4000 centimetres
250 kilograms of the blast furnace particulate slag powders of/gram, 40 kilograms in salt of wormwood, 2 kilograms of calcium lime powders stir, and get releasing agent.Can be used for-18 ℃ of amblent air temperatures, be coated with behind the punching block natural curing 24 hours, form removal is laborsaving, and concrete surface is smooth, template non-corroding phenomenon.
Example 4
Prepare and contain 6 kilograms of (solid content) commercial polyethylene alcohol formal binding agent (107 glue) aqueous solution, 4500 centimetres of adding specific surface areas in 100 kg of water
250 kilograms of the pumice sands of/gram, 25 kilograms of ammoniacal liquor (commercially available technical pure), 2 kilograms of ripe stone flours, stirring obtains releasing agent.With-30 ℃ of amblent air temperatures, be coated with punching block natural curing 48 hours, form removal is laborsaving, and concrete surface is long-pending smooth, template non-corroding phenomenon.
Example 5
Prepare the commercially available urea aldehyde adhesive solution that contains 8 kilograms (solid contents) in 100 kg of water, add 4200 centimetres
255 kilograms of the pumice sands of/gram, 30 kilograms in nitrocalcite, stirring makes releasing agent.Can be used for-14 ℃ construction environment, be used for punching block natural curing 24 hours, the demoulding is easy, and concrete surface is smooth, template non-corroding phenomenon.
Claims (7)
1, a kind of concrete parting agent composition is characterized in that being made up of soluble organic adhesive, water, grey breeze, frostproofer, sanitas and rust-preventive agent mixing, and its composition (weight) content is:
Soluble organic adhesive (solid content) 1-12 part
Grey breeze 10-100 part
100 parts in water
Frostproofer 0-40 part
Sanitas 0-5 part
Rust-preventive agent 0-10 part
Described soluble organic adhesive is meant any in Xylo-Mucine, starch alkali binding agent, polyvinyl alcohol, urea aldehyde binding agent, the polyvinyl formal binding agent; Also can be two or more mixture among them, the fineness ratio surface-area of described grey breeze be 2000-10000 centimetre
2/ gram.
2, concrete parting agent composition as claimed in claim 1 is characterized in that its composition (weight) content is 4-10 part with soluble organic adhesive (solid content), and grey breeze 50-70 part is better.
3, concrete parting agent composition as claimed in claim 1 is characterized in that its composition (weight) content with 6 parts of soluble organic adhesives (solid content), and the grey breeze is best for 60 parts.
4, as the composition of claim 1,2,3 described concrete parting agents; it is characterized in that described grey breeze is meant any in flyash, volcanic ash, granulated bf slag powder, pumice sand, zeolite powder, the perlite powder, also can be any two the above mixtures among them.
5, concrete parting agent composition as claimed in claim 1 is characterized in that described frostproofer can be any in Sodium Nitrite, salt of wormwood, urea, nitrocalcite, the ammoniacal liquor; Also any two above mixtures in them.
6, concrete parting agent composition as claimed in claim 1 is characterized in that described sanitas can be a formalin.
7, concrete parting agent composition as claimed in claim 1, it is characterized in that described rust-preventive agent can be in Sodium Nitrite, unslaked lime, the white lime any.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93120015 CN1103887A (en) | 1993-12-14 | 1993-12-14 | Strip agent for concrete |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93120015 CN1103887A (en) | 1993-12-14 | 1993-12-14 | Strip agent for concrete |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1103887A true CN1103887A (en) | 1995-06-21 |
Family
ID=4993118
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 93120015 Pending CN1103887A (en) | 1993-12-14 | 1993-12-14 | Strip agent for concrete |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1103887A (en) |
Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101544019B (en) * | 2009-05-11 | 2011-08-10 | 杨进林 | Concentrated mold release agent for cement encaustic tile |
| CN103100659A (en) * | 2013-02-27 | 2013-05-15 | 厦门大学 | Metal mold release agent and preparation method thereof |
| CN103343039A (en) * | 2013-07-02 | 2013-10-09 | 海安山河建材有限公司 | Preparation method for release agent for concrete formwork |
| CN104450036A (en) * | 2014-11-04 | 2015-03-25 | 张桂华 | Concrete demolding agent |
| CN104478282A (en) * | 2014-11-04 | 2015-04-01 | 张桂华 | Concrete isolating agent |
| CN104479837A (en) * | 2014-12-18 | 2015-04-01 | 蒙城县科技创业服务中心 | Safe and environment-friendly concrete mold release agent and preparation method thereof |
| CN105038916A (en) * | 2015-06-08 | 2015-11-11 | 梁胜光 | Concrete mold release agent |
| CN105033170A (en) * | 2015-07-27 | 2015-11-11 | 芜湖黄燕实业有限公司 | Release agent used for aluminum alloy part die-casting die and preparation method thereof |
| CN105345919A (en) * | 2015-09-24 | 2016-02-24 | 滁州京安工贸有限责任公司 | Nanometer titania reinforced concrete mold release agents |
| CN106142310A (en) * | 2016-07-01 | 2016-11-23 | 陈凌燕 | A kind of concrete formation releasing agent |
| CN106190521A (en) * | 2016-07-15 | 2016-12-07 | 东至绿洲环保化工有限公司 | A kind of building template waterborne organic silicon releasing agent |
| CN106190491A (en) * | 2016-07-15 | 2016-12-07 | 东至绿洲环保化工有限公司 | A kind of concreting building form removal agent |
| CN106182366A (en) * | 2016-07-01 | 2016-12-07 | 陈凌燕 | A kind of air-entrained concrete shaping releasing agent |
| CN106221872A (en) * | 2016-07-15 | 2016-12-14 | 东至绿洲环保化工有限公司 | A kind of building form removal agent containing polypropylene modification silicone oil |
| CN106497655A (en) * | 2016-10-19 | 2017-03-15 | 大连市铭源全科技开发有限公司 | Structure of Core/shell Emulsion concrete parting agent and preparation method thereof |
| CN107987941A (en) * | 2017-11-21 | 2018-05-04 | 湖北恒利建材科技有限公司 | A kind of concrete parting agent |
-
1993
- 1993-12-14 CN CN 93120015 patent/CN1103887A/en active Pending
Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101544019B (en) * | 2009-05-11 | 2011-08-10 | 杨进林 | Concentrated mold release agent for cement encaustic tile |
| CN103100659A (en) * | 2013-02-27 | 2013-05-15 | 厦门大学 | Metal mold release agent and preparation method thereof |
| CN103343039A (en) * | 2013-07-02 | 2013-10-09 | 海安山河建材有限公司 | Preparation method for release agent for concrete formwork |
| CN104450036A (en) * | 2014-11-04 | 2015-03-25 | 张桂华 | Concrete demolding agent |
| CN104478282A (en) * | 2014-11-04 | 2015-04-01 | 张桂华 | Concrete isolating agent |
| CN104479837A (en) * | 2014-12-18 | 2015-04-01 | 蒙城县科技创业服务中心 | Safe and environment-friendly concrete mold release agent and preparation method thereof |
| CN105038916A (en) * | 2015-06-08 | 2015-11-11 | 梁胜光 | Concrete mold release agent |
| CN105033170A (en) * | 2015-07-27 | 2015-11-11 | 芜湖黄燕实业有限公司 | Release agent used for aluminum alloy part die-casting die and preparation method thereof |
| CN105345919A (en) * | 2015-09-24 | 2016-02-24 | 滁州京安工贸有限责任公司 | Nanometer titania reinforced concrete mold release agents |
| CN105345919B (en) * | 2015-09-24 | 2018-03-30 | 滁州京安工贸有限责任公司 | A kind of enhanced concrete parting agent of nano titanium oxide |
| CN106142310A (en) * | 2016-07-01 | 2016-11-23 | 陈凌燕 | A kind of concrete formation releasing agent |
| CN106182366A (en) * | 2016-07-01 | 2016-12-07 | 陈凌燕 | A kind of air-entrained concrete shaping releasing agent |
| CN106190521A (en) * | 2016-07-15 | 2016-12-07 | 东至绿洲环保化工有限公司 | A kind of building template waterborne organic silicon releasing agent |
| CN106190491A (en) * | 2016-07-15 | 2016-12-07 | 东至绿洲环保化工有限公司 | A kind of concreting building form removal agent |
| CN106221872A (en) * | 2016-07-15 | 2016-12-14 | 东至绿洲环保化工有限公司 | A kind of building form removal agent containing polypropylene modification silicone oil |
| CN106497655A (en) * | 2016-10-19 | 2017-03-15 | 大连市铭源全科技开发有限公司 | Structure of Core/shell Emulsion concrete parting agent and preparation method thereof |
| CN107987941A (en) * | 2017-11-21 | 2018-05-04 | 湖北恒利建材科技有限公司 | A kind of concrete parting agent |
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| C01 | Deemed withdrawal of patent application (patent law 1993) | ||
| WD01 | Invention patent application deemed withdrawn after publication |