CN104261745A - Special polymer dry-mixed mortar for mechanized construction - Google Patents
Special polymer dry-mixed mortar for mechanized construction Download PDFInfo
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- CN104261745A CN104261745A CN201410517114.3A CN201410517114A CN104261745A CN 104261745 A CN104261745 A CN 104261745A CN 201410517114 A CN201410517114 A CN 201410517114A CN 104261745 A CN104261745 A CN 104261745A
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- mixed mortar
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- mechanized construction
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Abstract
The invention discloses special polymer dry-mixed mortar for mechanized construction. The dry-mixed mortar is mainly prepared from natural sand, cement, pulverized fuel ash and starch ether according to a certain weight ratio. The materials do not contain any toxic or harmful substance, and the dry-mixed mortar has the characteristics of light weight, high adhesive force, seamlessness, hollowing avoidance, cracking resistance, pulverization resistance, high waterproof permeability, impact resistance, high toughness and convenience in construction and is a non-toxic, pollution-free and environment-friendly decorative material.
Description
Technical field
The present invention relates to a kind of motar, is specifically a kind of polymer dry mixed mortar.
Background technology
Dry-mixed mortar is the main materials in construction work, and the dry-mixed mortar that current construction enterprises select is mostly that the acrylate that added by cement or aldehydes organic substance mix.This traditional mortar adhesiveproperties is poor, easily ruptures after plastering, and shock resistance, toughness and waterproof and breathable performance all do not reach design requirements yet, and affect construction quality.
Summary of the invention
Object of the present invention overcomes above-mentioned defect exactly, provides a kind of specialty polymer dry-mixed mortar of mechanized construction, to improve the adhesiveproperties of mortar, shock resistance, toughness and water resistance, improves Construction Quality, meets design requirement.
The solution of the present invention selects natural sand, cement, flyash, starch ethers, thixotropic lubricant, Vltra tears, air entrapment agent and polypropylene fibre to combine, by these material combination, make each raw material produce synergy, thus bonding, the shock resistance of dry-mixed mortar, toughness and waterproof and breathable performance can be improved.Wherein natural sand is under natural condition effect, and the particle diameter formed primarily of rock decay is at the rock particles of below 5mm, and natural sand is washed through Shui Chong, river, and sand grains cleans, stable material quality.Cement is a kind of powdery hydraulicity inorganic coagulation material, add water after stirring and become slurry, can harden in atmosphere or better harden in water, and can the material such as sand, stone is cemented together securely, with the concrete that its cementing rubble is made, after sclerosis, not only intensity is higher, and can also resist the erosion of fresh water or brackish water.Flyash, be receive to catch the thin ash got off from the flue gas after coal combustion, flyash is the primary solids refuse that coal-burning power plant discharges, and flyash outer appearnce is like cement, color changes between oyster white to grey black, the color of flyash is an important quality index, can reflect number and the difference of carbon content, also can reflect the fineness of flyash to a certain extent, color is darker, flyash granularity is thinner, and carbon content is higher, flyash just have Class F fly ash and high-calcium fly ass point.The color of usual high-calcium fly ass is partially yellow, and the color of Class F fly ash is partially grey, and the advantage that flyash uses is admixed flyash and saved a large amount of cement and fine aggregate in concrete, increases concrete modified.The major function of starch ethers: 1, extraordinary fast thickening ability: medium-viscosity, has higher water-retentivity; 2, consumption is little, and extremely low addition can reach very high effect; 3, the anti-sagging ability of material self is improved; 4, there is good oilness, the processing property of material can be improved, make operation more smooth.Starch ethers is applicable to all kinds of (cement, gypsum, grey calcium base) inner and external wall putty, all kinds of facing mortar motar.Starch ethers and other build, admixture has good consistency; Be specially adapted to as mortar, tackiness agent, plaster and roll the building dry blends such as skinning loam.Its basic material of thixotropic lubricant is the silicate minerals material picking up from sheet, in aqueous systems, these sheet silicate minerals materials can form a kind of structure being called card room formula, this structure can improve basic viscosity in system, these additives are dry mash and the development of paste system specially, they can produce special effect and can control viscosity, yield-point, stability and workability, increase mortar, plaster, bottom ash, the workability of motar and sizing agent and sag resistance, prevent self-leveling cement layering, thixotropic lubricant forms a kind of yield value that could flow when being called and only exceeding minimum external force.Factor sag resistance in dry mash system and paste system in yield value major effect two and package stability.When yield value is formed, sag resistance can improve.This makes likely one-off construction thick-layer mortar and can not produce sagging or sliding phenomenon, and in paste system, package stability is greatly improved after yield value is formed with flow is the same.Therefore precipitation can not be caused after adding pigment in mortar also can not to produce pigment secrete.When pumping, stirring or mortar are constructed, less shear energy can exceed yield value, and solution solvent viscosity ratio also can reduce and improve the application property of system.Vltra tears HPMC, has another name called hypromellose; HPMC, select the gossypin of high purity as raw material, obtain through special etherificate in the basic conditions, construction industry makes mortar have pumping as the water-holding agent of sand-cement slurry, retardant, at slurry of plastering, gypsum material, putty powder or other building materials as tamanori, improve smear and extend operable time, as sticking brick, marble, decorative plastic, paste toughener, cement consumption can also be reduced, the water retention property of HPMC makes slurry because of so dry that to chap too soon, can not strengthen the rear intensity of sclerosis after smearing.Air entrapment agent, make concrete mix in the process of mixing and stirring introducing air and formed in a large number small, close and the admixture of stabilise bubbles, the principal item of air entrapment agent comprises rosin tree lipid, alkyl and alkylated aromatic sulfonic acid class, fatty alcohol sulfonate class, saponins and protein salt, oil sulphur hydrochloric acid etc., conventional volume is 50 ~ 500ppm of cement weight, air entrapment agent is mainly used in frost resistance and requires high structure, end-use: 1, bubble structure is good, bubble radius is little, freeze proof index is high, for the concrete structure of high-durability; 2, Concrete Highway and the bridge of cryosel is spread; 3, high workability concrete engineering; 4, pump concrete.This product is powdery, good water solubility, and AH-1 volume is 0.01% ~ 0.03%, is applicable to general impervious antifreeze durability concrete; AH-2 volume is 0.6% ~ 0.7%, is applicable to pumping concrete construction.The preparation process of air entrapment agent: the ratio of weight and number 1, rosin, Yatall MA, triterpenoid saponin and xylogen being pressed 40 ~ 100: 0 ~ 40: 0 ~ 10: 0 ~ 10 drops in reactor, stirs after heat fused, obtained 100 parts of hybrid resin A; 2, in reactor, maleic anhydride, benzoquinones is added, obtained addition resin B after addition modification is carried out to hybrid resin A, 100 parts of addition resin B are formed by the material addition modification of following weight: hybrid resin A:40 ~ 95 part, maleic anhydride: 5 ~ 45 parts, benzoquinones: 0 ~ 15 part.3, in reactor, drip the mixture of polyoxyethylene glycol or polyoxyethylene glycol and tetramethylolmethane, grafting esterification is carried out at 180 ~ 250 DEG C, generate grafting esterification products C, in grafting esterification, the weight ratio of addition resin B, tetramethylolmethane, polyoxyethylene glycol is: addition resin B:10 ~ 80 part, tetramethylolmethane: 20 ~ 50 parts, polyoxyethylene glycol: 0 ~ 40 part.4, after grafting esterification reef knot bundle, after reactor being cooled to 50 ~ 100 DEG C, steady bubble component D and steady bubble component E is added in reactor, add 10 ~ 40 parts of surely bubble component D and 10 ~ 40 part surely bubble component E in 100 parts of grafting esterification reaction product C, wherein surely to steep component D be carbonatoms be 8 ~ 30 alkyl carboxylic acid.Steady bubble component E is for carbon number is the Organic Alcohol amine salt of the alkyl fatty acid of 8 ~ 24; 5, continue to reduce temperature of reaction kettle to 20 ~ 95 DEG C, adopt in alkali lye and gained reactant, drip tap water simultaneously, controlling gained solution solid content is 29% ~ 31%, pH=9 ~ 11, obtains the finished product.The rheological property that air entrapment agent can improve concrete durability and fresh concrete is mixed in concrete; Regulate concrete coagulation Hardenability and gas content; For concrete provides property.Polypropylene fibre is a kind of high-strength polypropylene pencil monfil, through special process for treating surface, ensure that fiber has splendid dispersiveness and the bond stress with cement body in concrete.Be a kind of novel concrete reinforced fiber, be called as concrete " secondary stiffening web ", the concrete quality mixing polypropylene fibre is changed the original sentence to, and comprehensive use properties is improved, and has the features such as joined technical is simple, cheap, excellent performance.
The consumption of raw material of the present invention is also that contriver obtains through a large amount of development test summaries, and the consumption of each raw material all has good effect under following weight proportioning.
Natural sand 77%-85% cement 10%-17%
Flyash 0%-10% starch ethers 0%-0.01%
Thixotropic lubricant 0%-0.27% Vltra tears HPMC 0.05%-0.12%
Air entrapment agent 0%-0.055% polypropylene fibre 0%-0.01%
28 days intensity 5.7MP.
Beneficial effect: the present invention does not contain hazardous and noxious substances in material, compared with existing polymer mortar, have lightweight, cohesive force strong, without seam, fire-retardant, not hollowing, do not chap, not efflorescence, water-fast, weathering resistance is strong, water-proof breathable properties is strong, shock resistance, toughness, workability are good, feature easily of constructing.The reasonable ratio of natural sand, flyash and cement in proportioning of the present invention; HPMC and polypropylene fibre play water conservation, cracking resistance effect, and starch ethers increases cohesive force, and thixotroping is lubricated
Agent plays even water conservation and and easily effect.A kind of toxicological harmless, pollution-free, environmental protection finishing material.
Embodiment 1:
Composition weight proportioning
Natural sand: 80%
Cement: 15%
Flyash: 5%
Thixotropic lubricant 0.17%
Vltra tears HPMC 0.1%
Polypropylene fibre 0.03%
28 days intensity 5.5MP
Embodiment 2:
Composition weight proportioning
Natural sand 80%
Cement 15%
Flyash 5%
Air entrapment agent 0.035%
Vltra tears HPMC 0.055%
Polypropylene fibre 0.003%
28 days intensity 4.2MP
Embodiment 3:
Composition weight proportioning
Natural sand 78.5%
Cement 16%
Flyash 5.5%
Thixotropic lubricant 0.17%
Vltra tears HPMC 0.1%
Polypropylene fibre 0.003%
28 days intensity 9.8MP
Embodiment 4:
Composition weight proportioning
Natural sand 79.5%
Cement 14.5%
Flyash 6%
Starch ethers 0.01%
Thixotropic lubricant 0.17%
Vltra tears HPMC 0.12%
Polypropylene fibre 0.003%
28 days intensity 5.0MP
Packaging: mechanized construction specialty polymer dry-mixed mortar of the present invention is pre-mixed and the single component dry powder of quota packaging, such as, can be packaged into 25kg/ bag.Powder during construction: water=1:0.23(weight ratio)
Be just be pre-mixed when the present invention is dispatched from the factory, and the list group dry powder of quota packaging, do not needed and other material-mix, open bag at the construction field (site) and can to add water application, accurate measurement, constructs very convenient.
Assay:
Claims (5)
1. a specialty polymer dry-mixed mortar for mechanized construction, is characterized in that: it is made up of the raw material within the scope of following weight:
Natural sand 77%-85% cement 10%-17%
Flyash 0%-10% starch ethers 0%-0.01%
Thixotropic lubricant 0%-0.27% Vltra tears HPMC 0.05%-0.12%
Air entrapment agent 0%-0.055% polypropylene fibre 0%-0.01%.
2. the specialty polymer dry-mixed mortar of mechanized construction according to claim 1, is characterized in that: the weight proportion of described dry-mixed mortar is:
Composition weight proportioning
Natural sand: 80%
Cement: 15%
Flyash: 5%
Thixotropic lubricant 0.17%
Vltra tears HPMC 0.1%
Polypropylene fibre 0.03%.
3. the specialty polymer dry-mixed mortar of mechanized construction according to claim 1, is characterized in that: the weight proportion of described dry-mixed mortar is:
Composition weight proportioning
Natural sand 80%
Cement 15%
Flyash 5%
Air entrapment agent 0.035%
Vltra tears HPMC 0.055%
Polypropylene fibre 0.003%.
4. the specialty polymer dry-mixed mortar of mechanized construction according to claim 1, is characterized in that: the weight proportion of described dry-mixed mortar is:
Composition weight proportioning
Natural sand 78.5%
Cement 16%
Flyash 5.5%
Thixotropic lubricant 0.17%
Vltra tears HPMC 0.1%
Polypropylene fibre 0.003%.
5. the specialty polymer dry-mixed mortar of mechanized construction according to claim 1, is characterized in that: the weight proportion of described dry-mixed mortar is:
Composition weight proportioning
Natural sand 79.5%
Cement 14.5%
Flyash 6%
Starch ethers 0.01%
Thixotropic lubricant 0.17%
Vltra tears HPMC 0.12%
Polypropylene fibre 0.003%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201410517114.3A CN104261745A (en) | 2014-09-30 | 2014-09-30 | Special polymer dry-mixed mortar for mechanized construction |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410517114.3A CN104261745A (en) | 2014-09-30 | 2014-09-30 | Special polymer dry-mixed mortar for mechanized construction |
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| CN104261745A true CN104261745A (en) | 2015-01-07 |
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| CN201410517114.3A Pending CN104261745A (en) | 2014-09-30 | 2014-09-30 | Special polymer dry-mixed mortar for mechanized construction |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105347753A (en) * | 2015-10-21 | 2016-02-24 | 桐乡正昶新型材料有限公司 | Mechanical spraying plastering mortar |
| CN105601198A (en) * | 2015-12-21 | 2016-05-25 | 鞍山三冶建筑工程有限公司 | Dry-mixed mortar for staple shaft masonry and preparation method thereof |
| CN105776993A (en) * | 2016-02-01 | 2016-07-20 | 湖北恒福节能科技有限公司 | Anti-cracking plastering mortar |
| CN108590655A (en) * | 2018-03-27 | 2018-09-28 | 山东科技大学 | Assemble the method that wall realizes gob side entry retaining |
| CN108947371A (en) * | 2018-07-17 | 2018-12-07 | 广东复特新型材料科技有限公司 | A kind of polymer foil cracking resistance plastering mortar |
| CN109867504A (en) * | 2017-12-04 | 2019-06-11 | 北新集团建材股份有限公司 | A kind of Anti-deformation plasterboard and preparation method thereof |
| CN110668741A (en) * | 2019-10-08 | 2020-01-10 | 广东凯恩德环保建材有限公司 | Preparation method of dry-mixed mortar |
| CN115477506A (en) * | 2022-07-25 | 2022-12-16 | 马鞍山市申锐节能新材料有限公司 | Thermal insulation mortar with high crack resistance and preparation method thereof |
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| CN1458104A (en) * | 2003-06-04 | 2003-11-26 | 王胜怀 | Polymer dry mixed mortar |
| CN1807333A (en) * | 2006-02-16 | 2006-07-26 | 江苏博特新材料有限公司 | Concrete air-entrainer |
| CN101696100A (en) * | 2009-09-25 | 2010-04-21 | 北京艺高世纪科技股份有限公司 | High-performance base mortar |
| CN102399073A (en) * | 2011-06-23 | 2012-04-04 | 上海飞步新材料科技有限公司 | Formula and preparation process for dry-mixed mortar |
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| CN1458104A (en) * | 2003-06-04 | 2003-11-26 | 王胜怀 | Polymer dry mixed mortar |
| CN1807333A (en) * | 2006-02-16 | 2006-07-26 | 江苏博特新材料有限公司 | Concrete air-entrainer |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105347753A (en) * | 2015-10-21 | 2016-02-24 | 桐乡正昶新型材料有限公司 | Mechanical spraying plastering mortar |
| CN105601198A (en) * | 2015-12-21 | 2016-05-25 | 鞍山三冶建筑工程有限公司 | Dry-mixed mortar for staple shaft masonry and preparation method thereof |
| CN105776993A (en) * | 2016-02-01 | 2016-07-20 | 湖北恒福节能科技有限公司 | Anti-cracking plastering mortar |
| CN109867504A (en) * | 2017-12-04 | 2019-06-11 | 北新集团建材股份有限公司 | A kind of Anti-deformation plasterboard and preparation method thereof |
| CN108590655A (en) * | 2018-03-27 | 2018-09-28 | 山东科技大学 | Assemble the method that wall realizes gob side entry retaining |
| CN108590655B (en) * | 2018-03-27 | 2019-05-31 | 山东科技大学 | Assemble the method that wall realizes gob side entry retaining |
| CN108947371A (en) * | 2018-07-17 | 2018-12-07 | 广东复特新型材料科技有限公司 | A kind of polymer foil cracking resistance plastering mortar |
| CN108947371B (en) * | 2018-07-17 | 2021-06-18 | 广东复特新型材料科技有限公司 | Polymer thin-layer crack-resistant plastering mortar |
| CN110668741A (en) * | 2019-10-08 | 2020-01-10 | 广东凯恩德环保建材有限公司 | Preparation method of dry-mixed mortar |
| CN115477506A (en) * | 2022-07-25 | 2022-12-16 | 马鞍山市申锐节能新材料有限公司 | Thermal insulation mortar with high crack resistance and preparation method thereof |
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Application publication date: 20150107 |