CN103553414A - Water-retentive and thickening material and mortar prepared thereby for mechanical spraying and plastering - Google Patents
Water-retentive and thickening material and mortar prepared thereby for mechanical spraying and plastering Download PDFInfo
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- CN103553414A CN103553414A CN201310506872.0A CN201310506872A CN103553414A CN 103553414 A CN103553414 A CN 103553414A CN 201310506872 A CN201310506872 A CN 201310506872A CN 103553414 A CN103553414 A CN 103553414A
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Abstract
The invention belongs to the technical field of construction materials, and particularly relates to a water-retentive and thickening material and mortar prepared thereby for mechanical spraying and plastering. The water-retentive and thickening material is prepared by uniformly mixing the raw materials of modified bentonite, a water reducer, an air entraining agent and a mineral aggregate according to a mass ratio of (6-10):(0.4-0.6):(0.05-0.15):(93.55-89.25). As the water-retentive and thickening material is added into the mortar for mechanical spraying and plastering, the air content of the mortar can be well controlled; due to the superimposed effects of the filling effect of superfine particles in the water-retentive and thickening material and water reducing and dispersing effects of the water reducer, the mortar can well meet the requirement of mechanical spraying and plastering; furthermore, the raw materials of the water-retentive and thickening material are easy to obtain, so that the cost of the material is low; the material is convenient to transport after being prepared, therefore, the material has high cost performance.
Description
Technical field
The invention belongs to building material technical field, the mechanically spraying plastering construction mortar that is specifically related to a kind of water-keeping thickening material and utilizes it to prepare.
Background technology
Traditional mortar preparation adopts the on-the-spot mode of preparing and stirring to carry out mostly, and labour intensity is large, operating efficiency is low, easily pollutes surrounding environment, and on-the-spot preparation metering is inaccurate, thus the quality problems such as initiation is peeled off, cracking, dry linting.The quality problems that occur for traditional mortar preparation method, after commerical ready-mixed concrete, have developed a kind of commodity mortar, i.e. a kind of dry-mixed mortar of realizing suitability for industrialized production has advantages of that steady quality, environmental pollution are little, are conducive to improve operating efficiency.But dry-mixed mortar preparation cost is higher, has limited it and applied.
Mechanically spraying facing plastering construction technology is a kind of building construction technology of in recent years vigorously advocating development, has the labour intensity that significantly improves speed of application, reduce workman, saves the advantages such as executive cost.Along with the quick increase of China's building trade manpower labour cost expense, mechanically spraying plastering construction is one of inevitable development trend of future architecture operating technique.The mortar that mechanically spraying plastering construction adopts requires as sand-cement slurry, cement lime mortar, but in prior art, mortar and most of dry-mixed mortar of on-the-spot mixing all can not meet the performance requriements of mechanical execution to mortar preferably, have more quality problems.
Summary of the invention
The mechanically spraying plastering construction mortar that the object of the invention is to provide a kind of water-keeping thickening material and utilizes it to prepare.
The technical solution adopted in the present invention is:
, by modified alta-mud, water reducer, air entrapment agent and mineral aggregate, be mixed with and form;
Described modified alta-mud is to be formed through purification, modification, tackify by natural calcium base bentonite, and its performance requriements is, the aqueous solution of being prepared by modified alta-mud, and when modification bentonite content is 10%, the viscosity of its water dispersion is 3200mPaS;
Described water reducer is sulfonated lignin, is sodium lignosulfonate or calcium lignin sulphonate;
Described air entrapment agent is triterpenoid saponin powder or modified rosin thermopolymer;
Described mineral aggregate is super-fine limestone powder, and fineness is greater than 700m
2/ kg.
The water-keeping thickening material of mortar for described mechanically spraying plastering construction, by quality proportioning, Gai Peng Run Tu ︰ Jian Shui Ji ︰ bleed Ji ︰ mineral aggregate=6 ~ 10 ︰ 0.4 ~ 0.6 ︰ 0.05 ~ 0.15 ︰ 93.55 ~ 89.25, best proportioning is, Gai Peng Run Tu ︰ Jian Shui Ji ︰ bleed Ji ︰ mineral aggregate=8 ︰ 0.5 ︰ 0.1 ︰ 91.4.
By described each component, in proportion after accurate-metering, mixing and stirring is mechanically spraying plastering construction mortar water-keeping thickening material.
The mechanically spraying plastering construction mortar that water-keeping thickening material provided by the invention is prepared, is mixed by water-keeping thickening material, cement, flyash, Sha Heshui;
Described flyash is II level original state flyash;
Described sand is that fineness modulus is 2.3 sand, and the kind of sand is a kind of in river sand, Machine-made Sand or mixed sand;
Described water is city tap-water.
The described mechanically spraying plastering construction mortar that utilizes water-keeping thickening material provided by the invention to prepare, water-keeping thickening material used is best proportioning.
The described mechanically spraying plastering construction mortar that utilizes water-keeping thickening material provided by the invention to prepare, by quality proportioning, water conservation thickening Cai Liao ︰: Shui Ni ︰ Fen Mei Hui ︰ sand: ︰ water=50 ︰ 100 ︰ 85 ︰ 765 ︰ 170, water-keeping thickening material is best proportioning.
The principle of technical solution of the present invention is that the modified alta-mud in thickening material has improved water-retentivity and the cohesiveness of mortar; And water reducer sulfonated lignin have bleed, diminishing and delayed coagulation, can reduce the water consumption of mortar, reduce the harm of shrinkage cracking; The use of air entrapment agent can provide appropriate micro-bubble, reduces the delamination degree of mortar, improves workability; The fineness ratio cement of mineral aggregate is thin, space between can filling concrete particle, squeezes out by water, thereby is guaranteeing under the condition of slurry consistency, reduce the water consumption of mortar, and then improve mortar water retention, intensity and weather resistance (not dry linting, do not shrink, do not ftracture).
In prior art, the mortar of on-the-spot mixing generally improves the workability of mortar by mixing " mortar king ", but can not effectively control the air content in mortar, thus the intensity of uncontrollable hardened mortar and weather resistance; And commercial dry-mixed mortar is to improve water retention by mixing ether of cellulose, but also significantly reduced the intensity of mortar, and cost is higher simultaneously.By add water-keeping thickening material provided by the invention in mortar, can control preferably the air content in mortar, and utilize the filling effect of ultra-fine grain in water-keeping thickening material, the Multiple Superposition effects such as the diminishing dissemination of water reducer, make mortar can meet preferably the performance need of mechanically spraying plastering construction, simultaneously because each raw material in water-keeping thickening material is easy to get, cost is lower, convenient transportation after preparation, therefore has higher cost performance.
Embodiment
Below in conjunction with embodiment the present invention will be further explained explanation.
embodiment 1
Water-keeping thickening material, is mixed by modified alta-mud, calcium lignin sulphonate, triterpenoid saponin powder and super-fine limestone powder, and the fineness of wherein said super-fine limestone powder is greater than 700m
2/ kg.
By quality proportioning, Gai Peng Run Tu ︰ Mu quality Huang Suan Gai ︰ triterpenoid saponin Fen ︰ limestone powder=6 ︰ 0.5 ︰ 0.75 ︰ 92.75, each raw material mixing and stirring is to the water-keeping thickening material of mortar for mechanically spraying plastering construction, wherein modified alta-mud is to be formed through purification, modification, tackify by natural calcium base bentonite, its performance requriements is, the aqueous solution of being prepared by modified alta-mud, when modification bentonite content is 10%, the viscosity of its water dispersion is 3200mPaS;
The preparation of mortar for mechanically spraying plastering construction, its raw material comprises: cement is PC42.5 (composite Portland cement); Sand is that fineness modulus is 2.3 Machine-made Sand; Flyash is II level original state flyash; Water is city tap-water; The water-keeping thickening material that the present embodiment is prepared.
Each component is by quality proportioning, water conservation thickening Cai Liao ︰ Shui Ni ︰ Fen Mei Hui ︰ Sha ︰ water=50 ︰ 100 ︰ 85 ︰ 765 ︰ 170.
Each raw material is prepared to mechanically spraying plastering construction mortar according to < < Test method for strength of hydraulic cement mortar (ISO) > > (GB/T17671-1999) method, as test sample, according to corresponding standard testing, prepare the properties of mortar, the results are shown in following table.
Note: contrast sample is for not mixing the mortar of water-keeping thickening material, and other are identical with test sample.
embodiment 2
The prepared mechanically spraying plastering construction of the present embodiment water-keeping thickening material of mortar, is mixed by modified alta-mud, calcium lignin sulphonate, triterpenoid saponin powder and super-fine limestone powder, and the fineness of described super-fine limestone powder is greater than 700m
2/ kg.
By quality proportioning, Gai Peng Run Tu ︰ Mu quality Huang Suan Gai ︰ triterpenoid saponin Fen ︰ limestone powder=8 ︰ 0.5 ︰ 0.1 ︰ 91.4, each raw material mixing and stirring is to the water-keeping thickening material of mortar for mechanically spraying plastering construction, wherein modified alta-mud is to be formed through purification, modification, tackify by natural calcium base bentonite, its performance requriements is, the aqueous solution of being prepared by modified alta-mud, when modification bentonite content is 10%, the viscosity of its water dispersion is 3200mPaS;
The preparation of mortar for mechanically spraying plastering construction, its raw material comprises: cement is PC42.5 (composite Portland cement); Sand is that fineness modulus is 2.3 river sand; Flyash is II level original state flyash; Water is city tap-water; The water-keeping thickening material that the present embodiment is prepared.
Each component is by quality proportioning, water conservation thickening Cai Liao ︰ Shui Ni ︰ Fen Mei Hui ︰ sand: ︰ water=50 ︰ 100 ︰ 85 ︰ 765 ︰ 170.
Each raw material is prepared to mechanically spraying plastering construction mortar according to < < Test method for strength of hydraulic cement mortar (ISO) > > (GB/T17671-1999) method, the properties of preparing mortar according to corresponding standard testing, the results are shown in following table.
Note: contrast sample is for not mixing the mortar of water-keeping thickening material, and other are identical with test sample.
embodiment 3
The prepared mechanically spraying plastering construction of the present embodiment water-keeping thickening material of mortar, is mixed by modified alta-mud, sodium lignosulfonate, modified rosin thermopolymer and super-fine limestone powder, and the fineness of described super-fine limestone powder is greater than 700m
2/ kg.
By quality proportioning, Gai Peng Run Tu ︰ lignin sulfonic acid Na ︰ modified rosin hot polymerization Wu ︰ limestone powder=10 ︰ 0.6 ︰ 0.15 ︰ 91.4.Wherein modified alta-mud is to be formed through purification, modification, tackify by natural calcium base bentonite, and its performance requriements is, the aqueous solution of being prepared by modified alta-mud, and when modification bentonite content is 10%, the viscosity of its water dispersion is 3200mPaS;
The preparation of mortar for mechanically spraying plastering construction, raw material comprises: cement is PC42.5 (composite Portland cement); Sand is that fineness modulus is 2.3 river sand; Flyash is II level original state flyash; Water is city tap-water; The water-keeping thickening material that the present embodiment is prepared.
Each component is by quality proportioning, water conservation thickening Cai Liao ︰ Shui Ni ︰ Fen Mei Hui ︰ sand: ︰ water=50 ︰ 100 ︰ 85 ︰ 765 ︰ 170.
Mortar is prepared mechanically spraying plastering construction mortar according to < < Test method for strength of hydraulic cement mortar (ISO) > > (GB/T17671-1999) method, the properties of preparing mortar according to corresponding standard testing, the results are shown in following table.
Note: contrast sample is for not mixing the mortar of water-keeping thickening material, and other are identical with test sample.
Above-described embodiment has carried out suitable variation for the material rate of prepared water-keeping thickening material, from detecting data, can find, add after water-keeping thickening material provided by the invention, mechanically spraying plastering construction has improvement in various degree with the property indices of mortar, therefore can suitably adjust according to the difference of end-use the proportioning of water-keeping thickening material.And, adding the water-keeping thickening material of embodiment 2 preparations to mechanically spraying plastering construction with after mortar, the achievement datas such as the water-retentivity of mortar, delamination degree and consistometric value all have comparatively significantly improvement, and the ultimate compression strength of mortar is also significantly improved.Therefore embodiment 2 proportionings are the best proportioning of the special-purpose pumping agent of preparation.
The various embodiments described above are preferred embodiments of the present invention; it is not limitation of the present invention; those skilled in the art can adjust corresponding proportioning raw materials or raw material type according to the difference of application target, but within all will be understood that the scope of asking for protection in patent of the present invention.
Claims (5)
1. a water-keeping thickening material, is characterized in that, this water-keeping thickening material is mixed with and is formed by modified alta-mud, water reducer, air entrapment agent and mineral aggregate;
Described modified alta-mud is to be formed through purification, modification, tackify by natural calcium base bentonite, and its performance requriements is, the aqueous solution of being prepared by modified alta-mud, and when modification bentonite content is 10%, the viscosity of its water dispersion is 3200mPaS;
Described water reducer is sodium lignosulfonate or calcium lignin sulphonate;
Described air entrapment agent is triterpenoid saponin powder or modified rosin thermopolymer;
Described mineral aggregate is super-fine limestone powder, and fineness is greater than 700m
2/ kg.
2. water-keeping thickening material as claimed in claim 1, is characterized in that, by quality proportioning, and Gai Peng Run Tu ︰ Jian Shui Ji ︰ bleed Ji ︰ mineral aggregate=6 ~ 10 ︰ 0.4 ~ 0.6 ︰ 0.05 ~ 0.15 ︰ 93.55 ~ 89.25.
3. water-keeping thickening material as claimed in claim 2, is characterized in that, by quality proportioning, and Gai Peng Run Tu ︰ Jian Shui Ji ︰ bleed Ji ︰ mineral aggregate=8 ︰ 0.5 ︰ 0.1 ︰ 91.4.
4. a mechanically spraying plastering construction mortar that utilizes the water-keeping thickening material described in claim 1-3 any one to prepare, its spy is, this mortar is mixed by water-keeping thickening material, cement, flyash, Sha Heshui;
Described flyash is II level original state flyash;
Described sand is that fineness modulus is 2.3 river sand, Machine-made Sand or mixed sand;
Described water is city tap-water.
5. mechanically spraying plastering construction mortar as claimed in claim 4, is characterized in that, by quality proportioning, and water conservation thickening Cai Liao ︰ Shui Ni ︰ Fen Mei Hui ︰ sand: ︰ water=50 ︰ 100 ︰ 85 ︰ 765 ︰ 170.
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| CN201310506872.0A CN103553414B (en) | 2013-10-24 | 2013-10-24 | The mechanically spraying plastering construction mortar of a kind of water-keeping thickening material and preparation thereof |
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| CN103553414B CN103553414B (en) | 2015-08-12 |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103922667A (en) * | 2014-03-25 | 2014-07-16 | 广西鱼峰集团有限公司 | Limestone machine-made sand dry-mixed mortar and preparation method thereof |
| CN104973830A (en) * | 2014-04-11 | 2015-10-14 | 舟山市汇邦建材有限公司 | Concrete dry-mixing mortar and preparation method thereof |
| CN105776989A (en) * | 2014-12-24 | 2016-07-20 | 嘉华特种水泥股份有限公司 | Novel wet-mixed mortar |
| CN108863150A (en) * | 2018-09-21 | 2018-11-23 | 天津天盈新型建材有限公司 | A kind of compound additive for mechanically spraying plastering mortar |
| CN111393111A (en) * | 2020-03-28 | 2020-07-10 | 德清高盛交通科技有限公司 | Full-machine-made sand plastering mortar with limestone as aggregate and preparation method thereof |
| CN111606618A (en) * | 2020-06-05 | 2020-09-01 | 安徽鑫生新型建材有限公司 | Sprayable waterproof anticorrosion erosion-resistant high-strength mortar and use method thereof |
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| CN101007720A (en) * | 2007-01-25 | 2007-08-01 | 上海市建筑科学研究院(集团)有限公司 | Highly effective water-keeping thickening material and cement mortar produced therefrom |
| CN101786826A (en) * | 2010-02-05 | 2010-07-28 | 中建商品混凝土有限公司 | Ready-mixed mortar thickening plasticity-maintaining agent |
| CN101962274A (en) * | 2010-09-30 | 2011-02-02 | 福建省建筑科学研究院 | Compound type thickening agent for green ecological concrete and preparation method thereof |
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2013
- 2013-10-24 CN CN201310506872.0A patent/CN103553414B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101007720A (en) * | 2007-01-25 | 2007-08-01 | 上海市建筑科学研究院(集团)有限公司 | Highly effective water-keeping thickening material and cement mortar produced therefrom |
| CN101786826A (en) * | 2010-02-05 | 2010-07-28 | 中建商品混凝土有限公司 | Ready-mixed mortar thickening plasticity-maintaining agent |
| CN101962274A (en) * | 2010-09-30 | 2011-02-02 | 福建省建筑科学研究院 | Compound type thickening agent for green ecological concrete and preparation method thereof |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103922667A (en) * | 2014-03-25 | 2014-07-16 | 广西鱼峰集团有限公司 | Limestone machine-made sand dry-mixed mortar and preparation method thereof |
| CN104973830A (en) * | 2014-04-11 | 2015-10-14 | 舟山市汇邦建材有限公司 | Concrete dry-mixing mortar and preparation method thereof |
| CN105776989A (en) * | 2014-12-24 | 2016-07-20 | 嘉华特种水泥股份有限公司 | Novel wet-mixed mortar |
| CN108863150A (en) * | 2018-09-21 | 2018-11-23 | 天津天盈新型建材有限公司 | A kind of compound additive for mechanically spraying plastering mortar |
| CN108863150B (en) * | 2018-09-21 | 2021-01-08 | 天津天盈新型建材有限公司 | Composite additive for mechanical spraying plastering mortar |
| CN111393111A (en) * | 2020-03-28 | 2020-07-10 | 德清高盛交通科技有限公司 | Full-machine-made sand plastering mortar with limestone as aggregate and preparation method thereof |
| CN111606618A (en) * | 2020-06-05 | 2020-09-01 | 安徽鑫生新型建材有限公司 | Sprayable waterproof anticorrosion erosion-resistant high-strength mortar and use method thereof |
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