CN102701679A - Antifreeze ready mixed mortar and preparation method thereof - Google Patents
Antifreeze ready mixed mortar and preparation method thereof Download PDFInfo
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- CN102701679A CN102701679A CN2012101949217A CN201210194921A CN102701679A CN 102701679 A CN102701679 A CN 102701679A CN 2012101949217 A CN2012101949217 A CN 2012101949217A CN 201210194921 A CN201210194921 A CN 201210194921A CN 102701679 A CN102701679 A CN 102701679A
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Abstract
The invention discloses antifreeze ready mixed mortar, which comprises the following components by weight percentages: 20 to 35% of cement, 60 to 79% of medium and fine-grained sand, 0.05 to 0.3% of cellulose ether polymer, 0.1 to 2.0% of engineering fiber, 0.1 to 4.0% of bulking agent, 0.1 to 1.0% of water reducing agent and 0.1 to 1.0% of antifreeze. The antifreeze ready mixed mortar provided by the invention comprises sodium nitrite and other antifreezes, so that the problem that the internal structure of the ready mixed mortar used in winter is damaged by freezing and thawing can be effectively solved, the clotting time of mortar is obviously shortened, the antifreeze performance of mortar is improved, and the durability of mortar is improved. The antifreeze ready mixed mortar is convenient to use, a time-consuming and labor-consuming wind proofing fence which is used in winter construction is avoided being used, the preparation method is simple, and the cost is low.
Description
Technical field
The present invention relates to a kind of premixing mortar and preparation method thereof, particularly a kind of antifreeze premixing mortar and preparation method thereof.
Background technology
Premixing mortar is meant by specialized manufacturer production, is used for the various mortar mixtures of construction project, is a kind of New Building Materials that China's developed recently gets up, and can be divided into common premixing mortar and extraordinary mortar by performance.Ordinary mortar mainly comprises masonry mortar, motar, ground mortar.Masonry mortar, motar are mainly used in building by laying bricks or stones and plastering of various concrete bricks, flyash brick and clay brick in bearing wall, the non-load bearing wall, and the ground mortar is used for the floor leveling of common and special occasions.Extraordinary mortar comprises thermal insulation mortar, decoration mortar, gravity flowing levelling mortar, waterproof mortar etc., and its purposes is also varied, is widely used in building exterior wall heat preserving, upholstery repairing etc.
Premixing mortar is as a kind of novel green material of construction; Because it has significant advantage at aspects such as economizing on resources, protect environment, guarantee construction engineering quality, realize resource reutilization; Its development has not only demonstrated fully the strategy and policy of national realization energy-saving and emission-reduction, also is one of the tangible behave of recycling economy that promotes development.
Yet the intensity of the premixing mortar that uses at present and workability are not enough, only can satisfy the site operation requirement; And for winter construction, the premixing mortar that uses at present is long time of coagulation, and because freeze thawing causes the mortar internal structure to be destroyed, so anti-freezing property is poor; While self meeting dry shrinkage, appearance is ftractureed, problems such as water resistance is poor, poor durability.
Summary of the invention
Technical problem to be solved:, the invention provides a kind of antifreeze premixing mortar and preparation method thereof in order to solve the defective that existing premixing mortar uses length time of coagulation, anti-freezing property difference winter.
Technical scheme: in order to solve the problems of the technologies described above; The invention provides a kind of new premixing mortar, comprise following components in part by weight: cement 20～35%, middle fine sand 60～79%, cellulose ethers high molecular polymer 0.05～0.3%, technical fiber 0.1～2.0%, swelling agent 0.1～4.0%, water reducer 0.1～1.0 and frostproofer 0.1～1.0%.
A kind of preferred as the antifreeze premixing mortar of the present invention, said frostproofer are selected from one or more the mixture in Sodium Nitrite, sodium-chlor and the calcium chloride; Thereby reduce this premixing mortar time of coagulation in winter, improve its anti-freezing property.
Another kind as the antifreeze premixing mortar of the present invention is preferred, and said cement is silicate cement, ordinary Portland cement, Portland blast, Portland fly or composite Portland cement; To guarantee the strength property of this premixing mortar.
Another kind as the antifreeze premixing mortar of the present invention is preferred, and the fineness modulus of said middle fine sand is 1.6-2.3; Thereby make premixing mortar even, to guarantee the strength property of this premixing mortar.
In order to improve this antifreeze premixing mortar waterproof impervious characteristic, promote the weather resistance of premixing mortar, the present invention has also optimized the prescription of premixing mortar:
Said cellulose ethers high molecular polymer is one or both in methyl cellulose ether and the hydroxypropyl methyl cellulose ether;
Said technical fiber is one or both in polypropylene fibre and the spun glass;
Said swelling agent is the mixture of any or several kinds in UEA swelling agent, quicklime swelling agent, iron filings swelling agent and the alumite plumping agent;
Said water reducer is that naphthalene is the mixture of any or several kinds in pulvis water reducer, aliphatics pulvis water reducer and the poly carboxylic acid pulvis water reducer.
The present invention also provides the preparation method of this antifreeze premixing mortar, may further comprise the steps:
1) middle fine sand is dried to water ratio below 0.5%, screens out particle greater than 4.75mm;
2) cellulose ethers high molecular polymer, technical fiber, swelling agent, water reducer and frostproofer are added in the cement, and stir, get the additive cement admixture;
3) middle fine sand and the additive cement admixture after will sieving stirs, and promptly gets.
Wherein, each weight percentages of components is respectively: cement 20～35%, middle fine sand 60～79%, cellulose ethers high molecular polymer 0.05～0.3%, technical fiber 0.1～2.0%, swelling agent 0.1～4.0%, water reducer 0.1～1.0 and frostproofer 0.1～1.0%.
Beneficial effect: antifreeze premixing mortar provided by the invention comprises frostproofers such as Sodium Nitrite; Can effectively overcome the premixing mortar that uses winter because freeze thawing causes the mortar internal structure to be destroyed; Significantly shorten mortar time of coagulation, improve the mortar anti-freezing property, improve the weather resistance of mortar.This antifreeze premixing mortar is easy to use, has avoided the protective grating that keeps out the wind of winter construction working costs effort, and the preparation method is simple, cost is low.
Simultaneously, antifreeze premixing mortar provided by the invention comprises additives such as cellulose ethers high molecular polymer, technical fiber, swelling agent and water reducer, has guaranteed mix performances such as mortar strength, denseness; Can effectively solve the problem of existing mortar self dry shrinkage, thereby guarantee that mortar closely is connected with concrete member, improve the mortar waterproof impervious characteristic, promote the weather resistance of premixing mortar.
Embodiment
In following examples, like no specified otherwise, per-cent all refers to weight percent.
Embodiment 1
Premixing mortar comprises following components in weight percentage: silicate cement 35%, fineness modulus are middle fine sand 60%, cellulose ethers high molecular polymer 0.3%, technical fiber 2.0%, swelling agent 1.2%, water reducer 1.0%, the frostproofer 0.5% of 1.6-2.3.
Wherein,
The cellulose ethers high molecular polymer is a methyl cellulose ether;
Technical fiber is a polypropylene fibre;
Swelling agent is a UEA-IV swelling agent;
Water reducer is that naphthalene is the pulvis water reducer;
Frostproofer is a Sodium Nitrite.
The preparation method is following:
1) middle fine sand is dried to water ratio below 0.5%, screens out the particle greater than 4.75mm, getting fineness modulus is the middle fine sand of 1.6-2.3;
2) cellulose ethers high molecular polymer, technical fiber, swelling agent, water reducer and frostproofer are added in the cement, and stir, get the additive cement admixture;
3) middle fine sand and the additive cement admixture after will sieving stirs, and promptly getting strength grade is the anti-freeze type dry-mixed mortar of M10.
Embodiment 2
Premixing mortar comprises following components in weight percentage: ordinary Portland cement 30%, fineness modulus are middle fine sand 64.7%, cellulose ethers high molecular polymer 0.1%, technical fiber 0.1%, swelling agent 4.0%, water reducer 0.1%, the frostproofer 1.0% of 1.6-2.3.
Wherein,
Said cellulose ethers high molecular polymer is a hydroxypropyl methyl cellulose ether;
Technical fiber is a spun glass;
Swelling agent is the mixture of UEA swelling agent, quicklime swelling agent, iron filings swelling agent and alum swelling agent;
Water reducer is a poly carboxylic acid pulvis water reducer;
Frostproofer is a sodium-chlor.
The preparation method is following:
1) middle fine sand is dried to water ratio below 0.5%, screens out the particle greater than 4.75mm, getting fineness modulus is the middle fine sand of 1.6-2.3;
2) cellulose ethers high molecular polymer, technical fiber, swelling agent, water reducer and frostproofer are added in the cement, and stir, get the additive cement admixture;
3) middle fine sand and the additive cement admixture after will sieving stirs, and promptly getting strength grade is the anti-freeze type dry-mixed mortar of M10.
Embodiment 3
Premixing mortar comprises following components in weight percentage: Portland blast 27.6%, fineness modulus are middle fine sand 70%, cellulose ethers high molecular polymer 0.2%, technical fiber 1.0%, swelling agent 0.1%, water reducer 1.0%, the frostproofer 0.1% of 1.6-2.3.
Wherein,
Said cellulose ethers high molecular polymer is the mixture of methyl cellulose ether and hydroxypropyl methyl cellulose ether;
Technical fiber is the mixture of polypropylene fibre and spun glass;
Swelling agent is the iron filings swelling agent;
Water reducer is an aliphatics pulvis water reducer;
Frostproofer is a calcium chloride.
The preparation method is following:
1) middle fine sand is dried to water ratio below 0.5%, screens out the particle greater than 4.75mm, getting fineness modulus is the middle fine sand of 1.6-2.3;
2) cellulose ethers high molecular polymer, technical fiber, swelling agent, water reducer and frostproofer are added in the cement, and stir, get the additive cement admixture;
3) middle fine sand and the additive cement admixture after will sieving stirs, and promptly getting strength grade is the anti-freeze type dry-mixed mortar of M10.
Embodiment 4
Premixing mortar; Comprise following components in weight percentage: Portland fly 20%, fineness modulus are middle fine sand 79%, hydroxypropyl methyl cellulose ether 0.05%, the spun glass 0.1% of 1.6-2.3, iron oxides swelling agent 0.45%, water reducer 0.2%, frostproofer 0.2%.
The preparation method is following:
1) middle fine sand is dried to water ratio below 0.5%, screens out the particle greater than 4.75mm, getting fineness modulus is the middle fine sand of 1.6-2.3;
2) cellulose ethers high molecular polymer, technical fiber, swelling agent, water reducer and frostproofer are added in the cement, and stir, get the additive cement admixture;
3) middle fine sand and the additive cement admixture after will sieving stirs, and promptly getting strength grade is the anti-freeze type dry-mixed mortar of M10.
Wherein,
Said cellulose ethers high molecular polymer is a hydroxypropyl methyl cellulose ether;
Technical fiber is a spun glass;
Swelling agent is the mixture of UEA swelling agent, iron filings swelling agent and alum swelling agent;
Water reducer is that naphthalene is pulvis water reducer, aliphatics pulvis water reducer and poly carboxylic acid pulvis water reducer;
Frostproofer is the mixture of Sodium Nitrite, sodium-chlor and calcium chloride.
Embodiment 5
The premixing mortar of present embodiment and preparation thereof and embodiment 1 method are basic identical, and different is:
Swelling agent is the quicklime swelling agent;
Water reducer is that naphthalene is pulvis water reducer and poly carboxylic acid pulvis water reducer;
Frostproofer is the mixture of sodium-chlor and calcium chloride.
Embodiment 6
The premixing mortar of present embodiment and preparation thereof and embodiment 1 method are basic identical, and different is:
Swelling agent is the UEA swelling agent;
Water reducer is aliphatics pulvis water reducer and poly carboxylic acid pulvis water reducer;
Frostproofer is the mixture of Sodium Nitrite and calcium chloride.
Embodiment 7
Antifreeze premixing mortar; Comprise following components in weight percentage: composite Portland cement 25%, middle fine sand 72.225%, cellulose ethers high molecular polymer 0.5%, polypropylene fibre 0.05%, swelling agent 2%; Water reducer 0.125%, Sunmorl N 60S 0.1%, getting strength grade is the premixing mortar of M10.
Embodiment 8
Antifreeze premixing mortar; Comprise following components in weight percentage: silicate cement 25%, middle fine sand 72.225%, cellulose ethers high molecular polymer 0.5%, polypropylene fibre 0.05%, swelling agent 2%; Water reducer 0.125%, carbohydrate 0.1%, getting strength grade is the premixing mortar of M10.
Embodiment 9
Measure the performance perameter of embodiment 1 to 8 said premixing mortar: time of coagulation, mortar strength measuring method adopt this area domestic method to measure, and the result sees table 1.
The performance perameter of table 1 embodiment 1 to 8 said premixing mortar
Wherein, said ordinary mortar is not for adding the mortar of frostproofer.
Simultaneously, not easy to crack after the premixing mortar use in winter of embodiment 1 to 8, and common premixing mortar easy of crack.
Claims (10)
1. an antifreeze premixing mortar is characterized in that: comprise following components in weight percentage: cement 20～35%, middle fine sand 60～79%, cellulose ethers high molecular polymer 0.05～0.3%, technical fiber 0.1～2.0%, swelling agent 0.1～4.0%, water reducer 0.1～1.0% and frostproofer 0.1～1.0%.
2. a kind of antifreeze premixing mortar according to claim 1 is characterized in that: said frostproofer is selected from one or more the mixture in Sodium Nitrite, sodium-chlor and the calcium chloride.
3. a kind of antifreeze premixing mortar according to claim 1 is characterized in that: said cement is silicate cement, ordinary Portland cement, Portland blast, Portland fly or composite Portland cement.
4. a kind of antifreeze premixing mortar according to claim 1 is characterized in that: the fineness modulus of fine sand is 1.6-2.3 in said.
5. a kind of antifreeze premixing mortar according to claim 1 is characterized in that: said cellulose ethers high molecular polymer is one or both in methyl cellulose ether and the hydroxypropyl methyl cellulose ether.
6. a kind of antifreeze premixing mortar according to claim 1 is characterized in that: said technical fiber is one or both in polypropylene fibre and the spun glass.
7. a kind of antifreeze premixing mortar according to claim 1 is characterized in that: said swelling agent is the mixture of any or several kinds in UEA swelling agent, quicklime swelling agent, iron filings swelling agent and the alumite plumping agent.
8. a kind of antifreeze premixing mortar according to claim 1 is characterized in that: said water reducer is that naphthalene is the mixture of any or several kinds in pulvis water reducer, aliphatics pulvis water reducer and the poly carboxylic acid pulvis water reducer.
9. the preparation method of an antifreeze premixing mortar: it is characterized in that: may further comprise the steps:
1) middle fine sand is dried to water ratio below 0.5%, screens out particle greater than 4.75mm;
2) cellulose ethers high molecular polymer, technical fiber, swelling agent, water reducer and frostproofer are added in the cement, and stir, get the additive cement admixture;
3) middle fine sand and the additive cement admixture after will sieving stirs, and promptly gets.
10. the preparation method of a kind of antifreeze premixing mortar according to claim 9, it is characterized in that: each weight percentages of components is respectively: cement 20～35%, middle fine sand 60～79%, cellulose ethers high molecular polymer 0.05～0.3%, technical fiber 0.1～2.0%, swelling agent 0.1～4.0%, water reducer 0.1～1.0 and frostproofer 0.1～1.0%.
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|---|---|---|---|---|
| CN105272015A (en) * | 2015-11-05 | 2016-01-27 | 中国三冶集团有限公司 | Anti-freezing anti-cracking anti-leaking mortar |
| CN105776912A (en) * | 2014-12-24 | 2016-07-20 | 嘉华特种水泥股份有限公司 | Air-setting and hydraulic Portland cement |
| CN106316270A (en) * | 2016-08-28 | 2017-01-11 | 北海金匠水泥制品有限责任公司 | Compression resistance cement brick |
| CN106927712A (en) * | 2017-03-02 | 2017-07-07 | 安徽鑫固环保股份有限公司 | A kind of high-strength antifreeze bicomponent mortar additive and preparation method thereof |
| CN106927710A (en) * | 2017-03-02 | 2017-07-07 | 安徽鑫固环保股份有限公司 | A kind of wet mixing mortar early-strength anti-freezing type additive and preparation method thereof |
| CN106946487A (en) * | 2017-03-02 | 2017-07-14 | 安徽鑫固环保股份有限公司 | A kind of wet mixing mortar antifreeze additive and preparation method thereof |
| CN107010867A (en) * | 2017-03-02 | 2017-08-04 | 安徽鑫固环保股份有限公司 | A kind of compound early-strength anti-freezing wet mixing mortar additive and preparation method thereof |
| CN107032656A (en) * | 2017-03-02 | 2017-08-11 | 安徽鑫固环保股份有限公司 | A kind of winter is with composite mortar additive and preparation method thereof |
| CN107032655A (en) * | 2017-03-02 | 2017-08-11 | 安徽鑫固环保股份有限公司 | A kind of wet mixing mortar NEW TYPE OF COMPOSITE additive and preparation method thereof |
| CN107473648A (en) * | 2017-09-29 | 2017-12-15 | 徐州金盟新型建材有限公司 | A kind of composite cement mortar |
| CN108751884A (en) * | 2018-07-26 | 2018-11-06 | 成都理工大学 | A kind of low-temperature nano complex cement |
| CN109020359A (en) * | 2017-06-09 | 2018-12-18 | 南京高延科技新材料有限公司 | A kind of durable premixing mortar |
| CN109574599A (en) * | 2019-01-29 | 2019-04-05 | 山东承坤信息科技有限公司 | A kind of environment-friendlydurable durable construction material |
| CN109574598A (en) * | 2019-01-29 | 2019-04-05 | 山东承坤信息科技有限公司 | A kind of preparation process of environment-friendlydurable durable construction material |
| CN109824325A (en) * | 2019-04-10 | 2019-05-31 | 东北大学 | A kind of impervious iron tailing concrete of resistance to compression and preparation method thereof |
| CN109867502A (en) * | 2019-04-10 | 2019-06-11 | 东北大学 | A kind of impervious iron tailing concrete and preparation method thereof |
| CN110510964A (en) * | 2019-10-08 | 2019-11-29 | 广东东方混凝土有限公司 | A kind of ready-mixed concrete |
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| CN105776912A (en) * | 2014-12-24 | 2016-07-20 | 嘉华特种水泥股份有限公司 | Air-setting and hydraulic Portland cement |
| CN105776912B (en) * | 2014-12-24 | 2018-06-05 | 嘉华特种水泥股份有限公司 | A kind of airsetting hydraulicity portland cement |
| CN105272015A (en) * | 2015-11-05 | 2016-01-27 | 中国三冶集团有限公司 | Anti-freezing anti-cracking anti-leaking mortar |
| CN106316270A (en) * | 2016-08-28 | 2017-01-11 | 北海金匠水泥制品有限责任公司 | Compression resistance cement brick |
| CN106946487A (en) * | 2017-03-02 | 2017-07-14 | 安徽鑫固环保股份有限公司 | A kind of wet mixing mortar antifreeze additive and preparation method thereof |
| CN107010867A (en) * | 2017-03-02 | 2017-08-04 | 安徽鑫固环保股份有限公司 | A kind of compound early-strength anti-freezing wet mixing mortar additive and preparation method thereof |
| CN107032656A (en) * | 2017-03-02 | 2017-08-11 | 安徽鑫固环保股份有限公司 | A kind of winter is with composite mortar additive and preparation method thereof |
| CN107032655A (en) * | 2017-03-02 | 2017-08-11 | 安徽鑫固环保股份有限公司 | A kind of wet mixing mortar NEW TYPE OF COMPOSITE additive and preparation method thereof |
| CN106927712A (en) * | 2017-03-02 | 2017-07-07 | 安徽鑫固环保股份有限公司 | A kind of high-strength antifreeze bicomponent mortar additive and preparation method thereof |
| CN106927710A (en) * | 2017-03-02 | 2017-07-07 | 安徽鑫固环保股份有限公司 | A kind of wet mixing mortar early-strength anti-freezing type additive and preparation method thereof |
| CN109020359A (en) * | 2017-06-09 | 2018-12-18 | 南京高延科技新材料有限公司 | A kind of durable premixing mortar |
| CN107473648A (en) * | 2017-09-29 | 2017-12-15 | 徐州金盟新型建材有限公司 | A kind of composite cement mortar |
| CN108751884A (en) * | 2018-07-26 | 2018-11-06 | 成都理工大学 | A kind of low-temperature nano complex cement |
| CN109574599A (en) * | 2019-01-29 | 2019-04-05 | 山东承坤信息科技有限公司 | A kind of environment-friendlydurable durable construction material |
| CN109574598A (en) * | 2019-01-29 | 2019-04-05 | 山东承坤信息科技有限公司 | A kind of preparation process of environment-friendlydurable durable construction material |
| CN109824325A (en) * | 2019-04-10 | 2019-05-31 | 东北大学 | A kind of impervious iron tailing concrete of resistance to compression and preparation method thereof |
| CN109867502A (en) * | 2019-04-10 | 2019-06-11 | 东北大学 | A kind of impervious iron tailing concrete and preparation method thereof |
| CN109824325B (en) * | 2019-04-10 | 2021-07-23 | 东北大学 | Compression-resistant anti-permeability iron tailing concrete and preparation method thereof |
| CN110510964A (en) * | 2019-10-08 | 2019-11-29 | 广东东方混凝土有限公司 | A kind of ready-mixed concrete |
| CN116177947A (en) * | 2022-10-08 | 2023-05-30 | 深圳市恒祥建设工程有限公司 | Foam concrete main material |
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