CN102153311A - Compound type thickening agent applicable to common wet-mixed mortar - Google Patents
Compound type thickening agent applicable to common wet-mixed mortar Download PDFInfo
- Publication number
- CN102153311A CN102153311A CN2011101044060A CN201110104406A CN102153311A CN 102153311 A CN102153311 A CN 102153311A CN 2011101044060 A CN2011101044060 A CN 2011101044060A CN 201110104406 A CN201110104406 A CN 201110104406A CN 102153311 A CN102153311 A CN 102153311A
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- Prior art keywords
- mortar
- common wet
- applicable
- wet mixing
- weight
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Classifications
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B40/00—Processes, in general, for influencing or modifying the properties of mortars, concrete or artificial stone compositions, e.g. their setting or hardening ability
- C04B40/0028—Aspects relating to the mixing step of the mortar preparation
- C04B40/0039—Premixtures of ingredients
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/91—Use of waste materials as fillers for mortars or concrete
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
The invention relates to a compound type thickening agent applicable to common wet-mixed mortar. The compound type thickening agent applicable to common wet-mixed mortar is characterized by being prepared by mixing a raw materials including 35-54 parts of lithium slags by weight, 5-8 parts of siliceous dust by weight, 4-6 parts of zeolite powder by weight, 0.5-1.4 parts of melamine water reducer by weight, 0.03-0.05 part of polyacrylamide by weight, 1.20-2.80 parts of sodium gluconate by weight, 0.04-0.09 part of sugar by weight and 0.006-0.010 part of triterpenoid saponins by weight. The raw materials are weighted according to the mass proportioning, added in a mixing machine and fully mixed to be uniform, and then the product of the compound type thickening agent can be obtained. The compound type thickening agent can obviously improve the water-retaining property, the cohesiveness and the softness of the common wet-mixed mortar, and enable the common wet-mixed mortar to obtain not only excellent working properties which can meet construction requirements but also better anti-compression strength, cohesive strength and anti-contraction property; and the compound type thickening agent can be applicable to ground mortar, masonry mortar and plastering mortar in the common wet-mixed mortar.
Description
Technical field
The invention belongs to building material field, be specifically related to be applicable to the compound viscosifying agent of common wet mixing mortar.
Background technology
Building mortar is requisite a kind of main raw in the construction work, be divided into ordinary mortar and extraordinary mortar two big classes, wherein ordinary mortar comprises three kinds in ground mortar, masonry mortar, motar, extraordinary mortar comprises waterproof mortar, ceramic tile adhesive mortar, interface processing mortar, gravity flowing levelling mortar, grout and mortar or the like, and ordinary mortar proportion in all building mortars is the highest, the consumption maximum.
Ordinary mortar can be divided into dry-mixed mortar and wet mixing mortar two big classes according to the difference of production and form of construction work.Dry-mixed mortar claims dry-mixed mortar again, it be with drying regime various raw materials (comprising gelling material, fine aggregate, chemical admixture) through dry-mixed mortar factory accurately prepare mix evenly after, transport to the building site in packed or in bulk mode, adding the suitable quantity of water mix then in use gets final product, but dry-mixed mortar is by special mixing equipment production, and required fine aggregate generally contains 1～7% moisture, needs process oven dry processing, therefore, the investment of production dry-mixed mortar is big, cost is high.Wet mixing mortar is meant various starting material (comprising water) through preparation rationally, after carrying out batch production and producing, is transported to the building site by transportation means (using airtight tank car usually).Simultaneously, ready mixed concrete has had the history in more than 30 year in China, and development is comparatively ripe, on the basis of the existing production line of concrete mixing plant, through simply transforming, can produce common wet mixing mortar, and cost of investment is low, and is easy to utilize.
For many years, system is mixed at how employing of domestic construction mortar scene, and there are defectives such as construction intensity is big, recruitment is many, quality stability is poor, environmental pollution in this method.In order to improve and stable mortar quality; realize civilized construction; strengthen environmental protection; China merchant in 2007 sends [2007] No. 205 literary compositions elsewhere and has issued " about forbid the on-the-spot notice that stirs mortar working at part city time limit "; carry out by stages and in groups and forbid using at the construction field (site) cement to stir mortar; and in engineering, use premixing mortar; i.e. wet mixing mortar or the dry-mixed mortar of producing by professional production factory; premixing mortar has been realized suitability for industrialized production; guaranteed quality of stability from the source; has the production efficiency height; easy to use; plurality of advantages such as environmental pollution is little meet China's STRATEGIES OF SUSTAINABLE DEVELOPMENT.
Common wet mixing mortar is transported to on-the-spot the use from production, as ready mixed concrete, to having relatively high expectations of its serviceability, guarantee certain operable time, be that mortar is behind blunge, before initial set, to have enough good workability, can carry out normal construction, operation, and will satisfy the requirement of engineering structure after the sclerosis aspects such as mechanical property and weather resistance.Therefore, functional, the compound viscosifying agent that has effects such as water conservation, thickening, slow setting concurrently is the key problem in technology that guarantees common wet mixing mortar various aspects of performance.
At present, the water-keeping thickening material that also has some to improve common wet mixing mortar performance on the domestic construction market, but all exist some problems, what have has some improvement to the mortar working performance, but intensity is lower; The raising that has intensity, but poor water retention property, the mortar operability is undesirable; The better performances that has, volume is extremely low, and causes metering system accuracy requirement height, is not easy to production application.The viscosifying agent of alternative good comprehensive properties, suitable general production application is of less types on the market.
Summary of the invention
Technical problem to be solved by this invention provides a kind of compound viscosifying agent that is applicable to common wet mixing mortar, and it has the advantages that to improve mortar performance.
In order to solve the problems of the technologies described above, the technical solution used in the present invention is:
Be applicable to the compound viscosifying agent of common wet mixing mortar, it is characterized in that: it is mixed by lithium slag, silicon ash, zeolite powder, melamine water reducing agent, polyacrylamide, Sunmorl N 60S, white sugar, triterpenoid saponin raw material, and the mass fraction of each raw material is: lithium slag 35-45 part, silicon ash 5-8 part, zeolite powder 4-6 part, melamine water reducing agent 0.5-1.4 part, polyacrylamide 0.03-0.05 part, Sunmorl N 60S 1.20-2.80 part, white sugar 0.04-0.09 part, triterpenoid saponin 0.006-0.010 part.
Described lithium slag is the yellow powder powder, specific surface area 〉=410m
2/ kg.
Described silicon ash is the little silicon ash of thickening type, grey, specific surface area 18～200,000 cm
2/ g.
Described zeolite powder is the yellow powder powder, and 80 μ m square hole sieves tail over 10.0～14.0%.
Described melamine water reducing agent is white powder, and is soluble in water, water content≤2%, water-reducing rate 〉=18%.
Described polyacrylamide is a white powder, and non-ionic type is soluble in water, molecular weight 600～8,000,000.
Described Sunmorl N 60S is pale yellow powder shape solid, and is soluble in water, and water content≤1% can prolong the operable time of mortar as retardant.
Described white sugar is edible white sugar, sucrose content 〉=99.7%, and moisture≤0.07% as retardant and Sunmorl N 60S acting in conjunction, prolongs the operable time of mortar.
Described triterpenoid saponin is a pale yellow powder, and water content≤5% can improve the pliability and the operating handle of mortar as air entrapment agent, and improves the volume of mortar.
Described lithium ground-slag is a carrier, also can play the effect of water-keeping thickening.
Described silicon ash, zeolite powder and polyacrylamide play the water-keeping thickening effect.
The preparation method of the compound viscosifying agent that is applicable to common wet mixing mortar of the present invention is as follows:
Take by weighing each starting material by above-mentioned quality proportioning, add in the mixer, thorough mixing is even, can obtain product of the present invention.
The suitable consumption of the present invention in mortar be different and difference to some extent according to the kind of common wet mixing mortar, and the suitable volume in the mortar of ground is 45-55kg/m
3, the suitable volume in masonry mortar is 50-60kg/m
3, the suitable volume in motar is 55-65kg/m
3
The invention has the beneficial effects as follows:
1) provided by the inventionly is applicable to that the compound viscosifying agent of common wet mixing mortar is easy to use, need not to be dissolved in water in advance, directly add in the mortar mixture and can use;
2) having utilized industrial residue---the lithium slag meets the policy of national sustainable development;
3) behind the use compound viscosifying agent provided by the invention, can improve water-retentivity, cohesiveness, the pliability of mortar significantly, not only make mortar have good working performance, can satisfy construction requirement, but also have ultimate compression strength, cohesive strength and anti-contracility energy preferably;
4) be applicable to ground mortar, masonry mortar and motar in the common wet mixing mortar, be widely used.
Embodiment
In order to understand the present invention better, further illustrate content of the present invention below in conjunction with embodiment, but content of the present invention not only is confined to following embodiment.
Embodiment 1～5:
The raw material of embodiment 1～5 and fill a prescription as shown in table 1.
Table 1 is applicable to the compound viscosifying agent formula table (mass fraction) of common wet mixing mortar
Described lithium slag is the yellow powder powder, specific surface area 420m
2/ kg.
Described silicon ash is the little silicon ash of thickening type, grey, specific surface area 200,000 cm
2/ g.
Described zeolite powder is the yellow powder powder, and 80 μ m square hole sieves tail over 11.2%.
Described melamine water reducing agent is white powder, and is soluble in water, water content 1.2%, water-reducing rate 19.2%.
Described polyacrylamide is a white powder, and non-ionic type is soluble in water, molecular weight 8,000,000.
Described Sunmorl N 60S is pale yellow powder shape solid, and is soluble in water, water content 0.5%.
Described white sugar is edible white sugar, sucrose content 99.8%, moisture 0.05%.
Described triterpenoid saponin is a pale yellow powder, water content 3.2%.
The preparation method of the above-mentioned compound viscosifying agent that is applicable to common wet mixing mortar is as follows: take by weighing each starting material by above-mentioned quality proportioning, add in the mixer, thorough mixing is even, can obtain product of the present invention.
The using method of compound viscosifying agent in common wet mixing mortar is as follows: compound viscosifying agent is directly added in the mortar mixture according to certain consumption stir, can obtain common wet mixing mortar product.
Use the common wet mixing mortar performance of the embodiment of the invention 1 prescription following (according to M20 design mortar mix ratio, sand is machine-processed sand, and screens out the particle greater than 2.36mm):
(I) the wet-mixing ground mortar performance of use embodiment 1:
(cement: flyash: compound viscosifying agent: sand: water=260: 120: 50: 1400: 240)
Delamination degree 12mm;
Initial consistency 93mm;
6h denseness 60mm;
Operable time 6.5h;
Time of coagulation 15.0h;
28d ultimate compression strength 27.6MPa;
28d shrinking percentage 0.0791%.
Illustrated: the present invention can improve water retentivity of mortar (delamination degree is 12mm), cohesiveness, pliability significantly, (initial consistency is 93mm not only to make mortar have good working performance, the 6h denseness is 60mm, operable time is 6.5h), can satisfy construction requirement, but also have ultimate compression strength (28d ultimate compression strength 27.6MPa) and anti-contracility energy (28d shrinking percentage 0.0791%) preferably.
(II) the wet-mixing masonry mortar performance of use embodiment 1:
(cement: flyash: compound viscosifying agent: sand: water=260: 120: 55: 1390: 245)
Delamination degree 11mm;
Initial consistency 101mm;
6h denseness 72mm;
Operable time 7.5h;
Time of coagulation 18.0h;
28d ultimate compression strength 25.5MPa;
28d shrinking percentage 0.0825%.
Illustrated: the present invention can improve water retentivity of mortar (delamination degree is 11mm), cohesiveness, pliability significantly, (initial consistency is 101mm not only to make mortar have good working performance, the 6h denseness is 72mm, operable time is 7.5h), can satisfy construction requirement, but also have ultimate compression strength (28d ultimate compression strength 25.5MPa) and anti-contracility energy (28d shrinking percentage 0.0825%) preferably.
(III) the wet-mixing motar performance of use embodiment 1:
(cement: flyash: compound viscosifying agent: sand: water=270: 110: 65: 1380: 255)
Delamination degree 8mm;
Initial consistency 110mm;
6h denseness 82mm;
Operable time 8.0h;
Time of coagulation 19.5h;
14d cohesive strength 0.35MPa;
28d ultimate compression strength 25.1MPa;
28d shrinking percentage 0.0873%.
Illustrated: the present invention can improve water retentivity of mortar (delamination degree is 8mm), cohesiveness, pliability significantly, (initial consistency is 110mm not only to make mortar have good working performance, the 6h denseness is 82mm, operable time is 8.0h), can satisfy construction requirement, but also have ultimate compression strength (28d ultimate compression strength 25.1MPa), cohesive strength (14d cohesive strength 0.35MPa) and anti-contracility energy (28d shrinking percentage 0.0873%) preferably.
Use the common wet mixing mortar performance of the embodiment of the invention 2～5 prescriptions to describe in detail no longer one by one.
The bound of each raw material of the present invention, interval value can both realize the present invention's (parameter that contains each raw material), do not enumerate embodiment one by one at this.Described protection scope of the present invention is not limited to the above embodiments, and other technical scheme identical with essence of the present invention all belongs to the scope of protection of the invention.
Claims (9)
1. be applicable to the compound viscosifying agent of common wet mixing mortar, it is characterized in that: it is mixed by lithium slag, silicon ash, zeolite powder, melamine water reducing agent, polyacrylamide, Sunmorl N 60S, white sugar, triterpenoid saponin raw material, and the mass fraction of each raw material is: lithium slag 35-45 part, silicon ash 5-8 part, zeolite powder 4-6 part, melamine water reducing agent 0.5-1.4 part, polyacrylamide 0.03-0.05 part, Sunmorl N 60S 1.20-2.80 part, white sugar 0.04-0.09 part, triterpenoid saponin 0.006-0.010 part.
2. the compound viscosifying agent that is applicable to common wet mixing mortar according to claim 1 is characterized in that: described lithium slag ratio surface-area 〉=410m
2/ kg.
3. the compound viscosifying agent that is applicable to common wet mixing mortar according to claim 1 is characterized in that: described silicon ash is the little silicon ash of thickening type, specific surface area 18 ~ 200,000 cm
2/ g.
4. the compound viscosifying agent that is applicable to common wet mixing mortar according to claim 1 is characterized in that: described zeolite powder 80 μ m square hole sieves tail over 10.0 ~ 14.0%.
5. the compound viscosifying agent that is applicable to common wet mixing mortar according to claim 1 is characterized in that: described melamine water reducing agent is Powdered, water content≤2%, water-reducing rate 〉=18%.
6. the compound viscosifying agent that is applicable to common wet mixing mortar according to claim 1 is characterized in that: described polyacrylamide is a non-ionic type, molecular weight 600 ~ 8,000,000.
7. the compound viscosifying agent that is applicable to common wet mixing mortar according to claim 1 is characterized in that: described Sunmorl N 60S is a pulverulent solids, water content≤1%.
8. the compound viscosifying agent that is applicable to common wet mixing mortar according to claim 1 is characterized in that: described white sugar is edible white sugar, sucrose content 〉=99.7%, moisture≤0.07%.
9. the compound viscosifying agent that is applicable to common wet mixing mortar according to claim 1 is characterized in that: described triterpenoid saponin is a pale yellow powder, water content≤5%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101044060A CN102153311B (en) | 2011-04-26 | 2011-04-26 | Compound type thickening agent applicable to common wet-mixed mortar |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101044060A CN102153311B (en) | 2011-04-26 | 2011-04-26 | Compound type thickening agent applicable to common wet-mixed mortar |
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|---|---|
| CN102153311A true CN102153311A (en) | 2011-08-17 |
| CN102153311B CN102153311B (en) | 2012-11-14 |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104743960A (en) * | 2015-04-01 | 2015-07-01 | 浙江忠信新型建材有限公司 | High-water-retention thickening powder for dry mix mortar |
| CN105294011A (en) * | 2015-11-21 | 2016-02-03 | 诸暨市兆山天峰干混砂浆有限公司 | Dry mixed ground mortar for effectively solving dusting and peeling of ground and preparation method for dry mixed ground mortar |
| CN105601151A (en) * | 2015-12-14 | 2016-05-25 | 江苏苏博特新材料股份有限公司 | Low-viscosity liquid plastic stabilizing agent for wet-mixed mortar and preparation method thereof |
| CN106348638A (en) * | 2016-08-23 | 2017-01-25 | 中建西部建设西南有限公司 | Additive for maintaining construction performance of wet mixing mortar and preparation method thereof |
| CN111825369A (en) * | 2020-07-02 | 2020-10-27 | 武汉理工大学 | Lithium slag-based thickening agent and preparation method and application thereof |
| CN115974481A (en) * | 2022-12-21 | 2023-04-18 | 浙江兆山建材科技有限公司 | Ground leveling mortar and preparation method thereof |
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| EP0630871A1 (en) * | 1993-06-21 | 1994-12-28 | Hoechst Aktiengesellschaft | Thickener combinations for building products |
| EP0897937A1 (en) * | 1997-08-18 | 1999-02-24 | Wacker-Chemie GmbH | Thickener based on polymers containing carboxyl- and carboxylamid groups |
| US20020045684A1 (en) * | 2000-08-17 | 2002-04-18 | Wacker-Chemie Gmbh | Thickener compositions containing vinyl alcohol copolymers and cellulose ethers |
| CN1721627A (en) * | 2004-07-16 | 2006-01-18 | 王宇辉 | Sand soil solidifying agent and production method thereof |
| CN101337779A (en) * | 2008-07-11 | 2009-01-07 | 南京师范大学 | Additive of composite portland cement and producing method thereof |
-
2011
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Patent Citations (5)
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| EP0630871A1 (en) * | 1993-06-21 | 1994-12-28 | Hoechst Aktiengesellschaft | Thickener combinations for building products |
| EP0897937A1 (en) * | 1997-08-18 | 1999-02-24 | Wacker-Chemie GmbH | Thickener based on polymers containing carboxyl- and carboxylamid groups |
| US20020045684A1 (en) * | 2000-08-17 | 2002-04-18 | Wacker-Chemie Gmbh | Thickener compositions containing vinyl alcohol copolymers and cellulose ethers |
| CN1721627A (en) * | 2004-07-16 | 2006-01-18 | 王宇辉 | Sand soil solidifying agent and production method thereof |
| CN101337779A (en) * | 2008-07-11 | 2009-01-07 | 南京师范大学 | Additive of composite portland cement and producing method thereof |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104743960A (en) * | 2015-04-01 | 2015-07-01 | 浙江忠信新型建材有限公司 | High-water-retention thickening powder for dry mix mortar |
| CN105294011A (en) * | 2015-11-21 | 2016-02-03 | 诸暨市兆山天峰干混砂浆有限公司 | Dry mixed ground mortar for effectively solving dusting and peeling of ground and preparation method for dry mixed ground mortar |
| CN105601151A (en) * | 2015-12-14 | 2016-05-25 | 江苏苏博特新材料股份有限公司 | Low-viscosity liquid plastic stabilizing agent for wet-mixed mortar and preparation method thereof |
| CN105601151B (en) * | 2015-12-14 | 2018-06-26 | 江苏苏博特新材料股份有限公司 | A kind of wet mixing mortar surely moulds agent and preparation method thereof with low-viscosity (mobile) liquid type |
| CN106348638A (en) * | 2016-08-23 | 2017-01-25 | 中建西部建设西南有限公司 | Additive for maintaining construction performance of wet mixing mortar and preparation method thereof |
| CN111825369A (en) * | 2020-07-02 | 2020-10-27 | 武汉理工大学 | Lithium slag-based thickening agent and preparation method and application thereof |
| CN115974481A (en) * | 2022-12-21 | 2023-04-18 | 浙江兆山建材科技有限公司 | Ground leveling mortar and preparation method thereof |
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|---|---|
| CN102153311B (en) | 2012-11-14 |
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