CN102701678B - Delayed coagulation ready-mixed mortar and preparation method thereof - Google Patents
Delayed coagulation ready-mixed mortar and preparation method thereof Download PDFInfo
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- CN102701678B CN102701678B CN201210194889.2A CN201210194889A CN102701678B CN 102701678 B CN102701678 B CN 102701678B CN 201210194889 A CN201210194889 A CN 201210194889A CN 102701678 B CN102701678 B CN 102701678B
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Abstract
The invention discloses delayed coagulation ready-mixed mortar. The delayed coagulation ready-mixed mortar comprises the following components in percentage by weight: 20-35% of cement, 60-79% of medium-fine sand, 0.05-0.3% of cellulose ether high molecular polymer, 0.1-2.0% of technical fiber, 0.1-4.0% of expanding agent, 0.1-1.0% of water reducing agent and 0.1-1.0% of retarding agent. The delayed coagulation ready-mixed mortar provided by the invention has the advantages that the coagulation time of the ready-mixed mortar can be effectively prolonged, simultaneously the hardening of the mortar can be delayed, the potential safety hazard of quality caused by secondary water addition is prevented, the delayed coagulation ready-mixed mortar is convenient to use, the secondary time and labor consuming water addition is avoided when the delayed coagulation ready-mixed mortar is used in hot weather construction, and the preparation method is simple and low in cost.
Description
Technical field
The present invention relates to a kind of premixing mortar and preparation method thereof, particularly a kind of slow setting premixing mortar and preparation method thereof.
Background technology
Premixing mortar refers to by specialized manufacturer production, 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, non-load bearing wall, and ground mortar is 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; due to its economizing on resources, protection of the environment, guarantee construction engineering quality, realize the aspects such as resource reutilization and there is significant advantage; its development has not only fully demonstrated the national strategy and policy that realize energy-saving and emission-reduction, is also one of the tangible behave of recycling economy that promotes development.
But intensity and the workability deficiency of the premixing mortar using at present, only can only meet site operation requirement; And for hot weather construction, premixing mortar time of coagulation of using is at present short, constructing operation is complicated.
Summary of the invention
Technical problem to be solved: in order to solve the defect that existing premixing mortar time of coagulation is short, constructing operation is complicated, the invention provides a kind of slow setting premixing mortar and preparation method thereof.
Technical scheme: in order to solve the problems of the technologies described above, the invention provides a kind of new premixing mortar, comprise the component of following weight ratio: 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 retardant 0.1～1.0%.
One as slow setting premixing mortar of the present invention is preferred, described retardant is one or more the mixture in Sunmorl N 60S, sodium lignosulfonate and carbohydrate, and described carbohydrate is any one or several mixture in glucose, sucrose, maltose and citric acid waste.
Another kind as slow setting premixing mortar of the present invention is preferred, and described cement is silicate cement, ordinary Portland cement, Portland blast furnace slag cement, Portland fly ash cement or composite Portland cement; To ensure the strength property of this premixing mortar.
Another kind as slow setting premixing mortar of the present invention is preferred, and the fineness modulus of described middle fine sand is 1.6-2.3; Thereby make premixing mortar even, to ensure the strength property of this premixing mortar.
In order to improve this slow setting premixing mortar waterproof impervious characteristic, promote the weather resistance of premixing mortar, the present invention has also optimized the formula of premixing mortar:
Described cellulose ethers high molecular polymer is one or both in methyl cellulose ether and hydroxypropyl methyl cellulose ether.
Described technical fiber is one or both in polypropylene fibre and glass fibre.
Described swelling agent is any one or several mixture in UEA swelling agent, calcium oxide swelling agent, iron filings swelling agent and alumite plumping agent.
Described water reducer is that naphthalene is any one or several mixture in pulvis water reducer, aliphatics pulvis water reducer and poly carboxylic acid pulvis water reducer.
The present invention also provides the preparation method of this slow setting premixing mortar, comprises the following steps:
1) middle fine sand is dried to water ratio below 0.5%, screens out the particle that is greater than 4.75mm;
2) cellulose ethers high molecular polymer, polypropylene fibre, swelling agent and water reducer are added in cement, and stir, obtain additive cement admixture;
3) the middle fine sand after sieving and additive cement admixture are stirred, to obtain final product.
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 retardant 0.1～1.0%.
Beneficial effect: slow setting premixing mortar provided by the invention comprises the retardant such as Sunmorl N 60S, can effectively promote premixing mortar time of coagulation, thereby simplifies constructing operation.This slow setting premixing mortar can delay mortar hardening, prevents from that secondary from adding water to cause security-hidden trouble.This slow setting premixing mortar is easy to use, has avoided the secondary of hot weather construction working costs effort to add water, and preparation method is simple, cost is low.
Meanwhile, slow setting premixing mortar provided by the invention comprises the additives such as cellulose ethers high molecular polymer, technical fiber, swelling agent and water reducer, has ensured the mix such as mortar strength, denseness performance; Can effectively solve the problem of existing mortar self dry shrinkage, thereby ensure that mortar is closely connected with concrete member, improve mortar waterproof impervious characteristic, promote the weather resistance of premixing mortar.
Embodiment
In following examples, if no special instructions, per-cent all refers to weight percent.
Embodiment 1
Premixing mortar, comprises the component of following weight percent: middle fine sand 60%, cellulose ethers high molecular polymer 0.3%, technical fiber 2.0%, swelling agent 1.2%, water reducer 1.0%, retardant 0.5% that silicate cement 35%, fineness modulus are 1.6-2.3;
Wherein,
Cellulose ethers high molecular polymer is methyl cellulose ether;
Technical fiber is polypropylene fibre;
Swelling agent is alumite plumping agent;
Water reducer is that naphthalene is pulvis water reducer;
Retardant is Sunmorl N 60S.
Preparation method is as follows:
1) middle fine sand is dried to water ratio below 0.5%, screens out the particle that is greater than 4.75mm, obtaining 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 retardant are added in cement, and stir, obtain additive cement admixture;
3) the middle fine sand after sieving and additive cement admixture are stirred, obtaining strength grade is the retardation setting type dry-mixed mortar of M10.
Embodiment 2
Premixing mortar, comprises the component of following weight percent: middle fine sand 64.7%, cellulose ethers high molecular polymer 0.1%, technical fiber 0.1%, swelling agent 4.0%, water reducer 0.1%, retardant 1.0% that ordinary Portland cement 30%, fineness modulus are 1.6-2.3.
Wherein,
Described cellulose ethers high molecular polymer is hydroxypropyl methyl cellulose ether;
Technical fiber is glass fibre;
Swelling agent is the mixture of UEA swelling agent, calcium oxide swelling agent, iron filings swelling agent and alum swelling agent;
Water reducer is poly carboxylic acid pulvis water reducer;
Retardant is sodium lignosulfonate.
Preparation method is as follows:
1) middle fine sand is dried to water ratio below 0.5%, screens out the particle that is greater than 4.75mm, obtaining 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 retardant are added in cement, and stir, obtain additive cement admixture;
3) the middle fine sand after sieving and additive cement admixture are stirred, obtaining strength grade is the retardation setting type dry-mixed mortar of M10.
Embodiment 3
Premixing mortar, comprises the component of following weight percent: middle fine sand 70%, cellulose ethers high molecular polymer 0.2%, technical fiber 1.0%, swelling agent 0.1%, water reducer 1.0%, retardant 0.1% that Portland blast furnace slag cement 27.6%, fineness modulus are 1.6-2.3.
Wherein,
Described 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 glass fibre;
Swelling agent is iron filings swelling agent;
Water reducer is aliphatics pulvis water reducer;
Retardant is carbohydrate, and described carbohydrate is one or more mixture of glucose, sucrose, maltose and citric acid waste.
Preparation method is as follows:
1) middle fine sand is dried to water ratio below 0.5%, screens out the particle that is greater than 4.75mm, obtaining 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 retardant are added in cement, and stir, obtain additive cement admixture;
3) the middle fine sand after sieving and additive cement admixture are stirred, obtaining strength grade is the retardation setting type dry-mixed mortar of M10.
Embodiment 4
Premixing mortar, comprise the component of following weight percent: middle fine sand 79%, hydroxypropyl methyl cellulose ether 0.05%, glass fibre 0.1% that Portland fly ash cement 20%, fineness modulus are 1.6-2.3, iron oxides swelling agent 0.45%, water reducer 0.2%, retardant 0.2%.
Wherein,
Described cellulose ethers high molecular polymer is hydroxypropyl methyl cellulose ether;
Technical fiber is glass fibre;
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;
Retardant is the mixture of Sodium Nitrite, sodium-chlor and calcium chloride;
Retardant is the mixture of Sunmorl N 60S, sodium lignosulfonate and carbohydrate, and described carbohydrate is the mixture of glucose, sucrose, maltose.
Preparation method is as follows:
1) middle fine sand is dried to water ratio below 0.5%, screens out the particle that is greater than 4.75mm, obtaining 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 retardant are added in cement, and stir, obtain additive cement admixture;
3) the middle fine sand after sieving and additive cement admixture are stirred, obtaining strength grade is the retardation setting type dry-mixed mortar of M10.
Embodiment 5
The premixing mortar of the present embodiment and preparation thereof and embodiment 1 method are basic identical, and difference is:
Swelling agent is calcium oxide swelling agent;
Water reducer is that naphthalene is pulvis water reducer and poly carboxylic acid pulvis water reducer;
Retardant is the mixture of Sunmorl N 60S and sodium lignosulfonate.
Embodiment 6
The premixing mortar of the present embodiment and preparation thereof and embodiment 1 method are basic identical, and difference is:
Swelling agent is UEA swelling agent;
Water reducer is aliphatics pulvis water reducer and poly carboxylic acid pulvis water reducer;
Retardant is the mixture of sodium lignosulfonate and glucose.
Embodiment 7
Slow setting premixing mortar, comprise the component of following weight percent: composite Portland cement 22.319%, middle fine sand 75%, cellulose ethers high molecular polymer 0.5%, polypropylene fibre 0.05%, swelling agent 2%, water reducer 0.125%, Sunmorl N 60S 0.006%, the retardation setting type dry-mixed mortar that acquisition strength grade is M10.
Embodiment 8
Slow setting premixing mortar, comprise the component of following weight percent: silicate cement 22.319%, middle fine sand 75%, cellulose ethers high molecular polymer 0.5%, polypropylene fibre 0.05%, swelling agent 2%, water reducer 0.125%, sucrose 0.006%, the retardation setting type dry-mixed mortar that acquisition strength grade is M10.
Embodiment 9
The performance perameter of premixing mortar described in mensuration ordinary mortar and embodiment 1 to 8: time of coagulation, mortar strength measuring method adopt this area common method to measure, and the results are shown in Table 1.
The performance perameter of premixing mortar described in table 1 embodiment 1 to 8
Wherein, described ordinary mortar is the mortar that does not add retardant.
Claims (2)
1. a slow setting premixing mortar, it is characterized in that: the component that comprises following weight percent: 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 retardant 0.1～1.0%; Described retardant is one or more the mixture in Sunmorl N 60S, sodium lignosulfonate and carbohydrate, and described carbohydrate is any one or several mixture in glucose, sucrose, maltose and citric acid waste; The fineness modulus of described middle fine sand is 1.6-2.3; Described technical fiber is one or both in polypropylene fibre and glass fibre; Described cement is silicate cement, ordinary Portland cement, Portland blast furnace slag cement, Portland fly ash cement or composite Portland cement; Described cellulose ethers high molecular polymer is one or both in methyl cellulose ether and hydroxypropyl methyl cellulose ether; Described swelling agent is any one or several mixture in UEA swelling agent, calcium oxide swelling agent, iron filings swelling agent and alumite plumping agent; Described water reducer is that naphthalene is any one or several mixture in pulvis water reducer, aliphatics pulvis water reducer and poly carboxylic acid pulvis water reducer.
2. the preparation method of a slow setting premixing mortar: it is characterized in that: comprise the following steps:
1) middle fine sand is dried to water ratio below 0.5%, screens out the particle that is greater than 4.75mm;
2) cellulose ethers high molecular polymer, technical fiber, swelling agent, water reducer and retardant are added in cement, and stir, obtain additive cement admixture;
3) the middle fine sand after sieving and additive cement admixture are stirred, to obtain final product;
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 retardant 0.1～1.0%.
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| CN103880341B (en) * | 2012-12-21 | 2015-11-18 | 攀钢集团工程技术有限公司 | A kind of concrete composition and concrete and preparation method thereof |
| CN103482927B (en) * | 2013-09-02 | 2015-01-07 | 东南大学 | High-crack-resistance low-shrinkage high-ductility mortar and preparation method thereof |
| CN103755266B (en) * | 2014-02-09 | 2015-09-02 | 南京佰富勤混凝土有限公司 | A kind of preparation method of mortar |
| CN103755215B (en) * | 2014-02-17 | 2015-07-01 | 广西华南建设集团有限公司 | Preparation method of tubular pile concrete auxiliary material |
| 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 |
| CN106116197B (en) * | 2016-06-27 | 2018-04-27 | 新化县天马水泥有限公司 | A kind of method that complex cement retarder is prepared using citric acid waste |
| CN107601994A (en) * | 2017-09-28 | 2018-01-19 | 张聪聪 | Impervious cracking resistance premixing mortar and its production method |
| CN107879698A (en) * | 2017-12-19 | 2018-04-06 | 来安县塔鑫建材有限公司 | A kind of wet mixing mortar for being not easy to isolate |
| CN110551414A (en) * | 2019-10-25 | 2019-12-10 | 兴远辉贸易(深圳)有限公司 | method for making environment-friendly regenerated interior and exterior wall putty powder |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1821155A (en) * | 2006-02-28 | 2006-08-23 | 武汉理工大学 | CA mortar material with high anti-freezing and shock sucking function |
| CN101386505A (en) * | 2008-10-17 | 2009-03-18 | 陕西建工集团总公司 | Dry powder mortar adhesive agent and preparation method thereof |
| CN101538136A (en) * | 2009-04-29 | 2009-09-23 | 华南理工大学 | Premixing mortar with high moisture retention and production method thereof |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101423364B (en) * | 2008-11-26 | 2012-07-18 | 江苏省建筑工程集团有限公司 | Wet mixture mortar capable of pumping |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1821155A (en) * | 2006-02-28 | 2006-08-23 | 武汉理工大学 | CA mortar material with high anti-freezing and shock sucking function |
| CN101386505A (en) * | 2008-10-17 | 2009-03-18 | 陕西建工集团总公司 | Dry powder mortar adhesive agent and preparation method thereof |
| CN101538136A (en) * | 2009-04-29 | 2009-09-23 | 华南理工大学 | Premixing mortar with high moisture retention and production method thereof |
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