CN103342520A - Polymer modified rubber mortar used for building leveling layer and construction method of polymer modified rubber mortar - Google Patents
Polymer modified rubber mortar used for building leveling layer and construction method of polymer modified rubber mortar Download PDFInfo
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- CN103342520A CN103342520A CN2013102730697A CN201310273069A CN103342520A CN 103342520 A CN103342520 A CN 103342520A CN 2013102730697 A CN2013102730697 A CN 2013102730697A CN 201310273069 A CN201310273069 A CN 201310273069A CN 103342520 A CN103342520 A CN 103342520A
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- 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
Abstract
The invention discloses polymer modified rubber mortar for a building leveling layer. The polymer modified rubber mortar is formed by doping three modified materials including rubber powder, a polymer and an organic fibre into modified cement mortar. The polymer modified rubber mortar is formed by mixing the following components in parts by weight: 30-40 parts of cement, 5-20 parts of water, 2-10 parts of the polymer, 50-90 parts of sand, 5-15 parts of the rubber powder, 0.05-0.15 part of the organic fibre, 0-5 parts of mineral admixtures, 0-1 part of an auxiliary, and 0-0.5 part of an additive. According to the freshly-mixed polymer modified rubber mortar, the thickness is controlled to be 7cm, during the curing period of 7 days, the compressive strength of the mortar is not less than 10 MPa, the rupture strength is not less than 3.5 MPa, during the curing period of 28 days, the compressive strength of the mortar is not less than 15 MPa, the rupture strength is not less than 5 MPa, the chloride ion permeation coefficient is not larger than 50*10<-14>m<2>/s, and the heat conductivity coefficient is not larger than 0.5W/m.k. The polymer modified rubber mortar disclosed by the invention can be used for effectively solving the problems of sugaring, peeling, crispiness, bulging, cracking and the like existing in the traditional cement mortar leveling layer, has the performance advantages of permeability resistance, crack prevention, thermal insulation, high tenacity and the like, can fully utilize waste rubber, can turn waste into wealth, and is suitable for various building leveling layers.
Description
Technical field
The invention belongs to building material field, be specifically related to a kind of polymer modification rubber mortar and constructional method thereof for the building screed-coat.
Background technology
Screed-coat is on bed course, floor or packing layer leveling, look for the synthem of slope or booster action, and this level is the requisite integral parts in aspect such as waterproof in the building construction, insulation, leveling.But find that by investigation the result of use of building screed-coat at present is unsatisfactory.Owing to sand-cement slurry self is shunk the crack that produces erratic crack or expand with heat and contract with cold and cause in the setting and harden process, cause the impervious weak effect of screed-coat sand-cement slurry, easily leak; Easily dusting is loose for screed-coat surface, causes with its upper layer of material bonding badly, as bonding poor with ceramic tile or waterproof roll, easily forms hollowing; Common screed-coat sand-cement slurry fragility is big, and deformability is poor, and is easy to crack, causes the top material deformation easily, thereby influences its whole use properties.Therefore, how effectively to improve the use propertieies such as fragility, splitting resistance and impermeability of traditional screed-coat, become the problem that solution is badly in need of in the engineering field.
Both at home and abroad related application with studies show that, in sand-cement slurry, add the polymer-modified cement mortar that the organic high molecular polymer of certain volume is formed, can effectively improve the relevant use properties of sand-cement slurry.At first, having good flexibility and close-burning polymkeric substance can be at the inner polymeric film uniformly that forms continuously of sand-cement slurry, adapt to the variation between the internal particle in the sand-cement slurry drying process, thereby the pore that is interconnected in the minimizing mortar, the appearance that overlaps the crack better and prevent the crack; Secondly, the polymer modification mortar also has water-retentivity preferably, is conducive to the aquation of cement, and can adopt lower water cement ratio, and reducing dry shrinkage, its water retention property reduces under the loading action the creeping property of the movement of capillary water and mortar in the structure; On the other hand, polymer-modified cement mortar has less Young's modulus and plasticity preferably; In addition, polymer mortar also has the performances such as bleed of good working performance, frost resistance and appropriateness.
Waste old is a kind of macromolecular material of decomposing of being difficult under field conditions (factors).It is water insoluble, is insoluble in organic solvent, and not perishable, handle by traditional method, and the expense costliness, therefore oneself is related to problems such as global environmental protection and the utilization of resources to the processing of waste old.Data presentation according to the announcement in 2011 of Chinese rubber association, oneself reaches 4,500,000 tons the output of China's waste tire rubber in 2010, wherein having 30% tire not obtain recycling approximately, environment has been caused huge threat, also is a kind of serious wasting of resources simultaneously.Rubber powder is a kind of resilient material, stretching or can produce bigger distortion during compression and do not destroy, has high limit elongation, the performance such as toughness, impermeability, anti-early-age plastic cracking of mixing the mortar of rubber all increases significantly, has good heat retaining property simultaneously, the rubber powder rational and effective is applied in the pollution problem that can effectively alleviate waste rubber in the sand-cement slurry, meets the principles and policies of China's Sustainable development.
Summary of the invention
The technical problem to be solved in the present invention is at the above-mentioned defective that existing traditional screed-coat exists, to provide a kind of polymer modification rubber mortar and constructional method thereof of being used for the building screed-coat with good barrier, cracking resistance, high tenacity and heat insulation effect.
The present invention solves the problems of the technologies described above the technical scheme that adopts to be:
A kind of polymer modification rubber mortar for the building screed-coat, this mortar are mixed by the composition of following proportion by weight:
Press such scheme, described cement is the general cement of silicates, and the cement intensity grade is 32.5 grades or 42.5 grades.
Press such scheme, this polymer modification rubber mortar also comprises the mineral admixture of 0-5 part by weight, and described mineral admixture is flyash, granulated blast-furnace slag, volcanic ash class, chainotte or burned coal gangue.
Press such scheme, described rubber powder is that in the chloroprene rubber, cis-1,4-polybutadiene rubber, polyisoprene rubber, nitrile rubber of industrial general one or several mix according to arbitrary proportion, is perhaps replaced by waste rubber, and the particle diameter of rubber powder is between 0.075～4.75mm.
Press such scheme, described polymkeric substance be 1. following～4. in any one:
1. fluoropolymer resin: one or more in thermosetting resin, tar resinoid, the vinyl resins are according to the arbitrary proportion blend;
2. polymer emulsion: one or more in styrene-butadiene emulsion, ACRYLIC EMULSION, benzene emulsion, the vinyl acetate-ethylene copolymerization emulsions mix according to arbitrary proportion;
3. above-mentioned 1. fluoropolymer resin and 2. polymer emulsion according to the arbitrary proportion blend;
4. use 1. above-mentioned or the 2. or 3. latex powder of polymer manufacture.
Press such scheme, described organic fibre selects for use in polypropylene fibre, trevira, tynex or the polyvinyl alcohol fiber one or more to mix according to arbitrary proportion.
Press such scheme, described auxiliary agent is softening agent or the defoamer that is suitable for above-mentioned fluoropolymer resin, polymer emulsion or latex powder, and described admixture is hardening accelerator or water reducer.
Press such scheme, described sand is common river sand or machine-processed sand.
Press such scheme, described softening agent is phthalate, fatty acid ester, phosphoric acid ester, epoxy ester series, polyester or trimellitic acid ester plasticizer.
Press such scheme, described defoamer is polyethers defoamer or silicone antifoam agent.
Press such scheme, described hardening accelerator is chloride salt, Sulfates, Nitrates or organic class hardening accelerator.
Press such scheme, described water reducer is lignosulfonic acid salt, naphthalene system, amino class or polycarboxylate water-reducer.
The present invention also provides a kind of constructional method for the polymer modification rubber mortar of building screed-coat, may further comprise the steps:
(1) base cleaning: before smearing the polymer modification rubber mortar of screed-coat that the substrate surface cleaning of screed-coat bottom is clean, and the moistening substrate surface of sprinkling water;
(2) fixedly snap the line is looked for the gradient: according to slope requirement, the slope is looked in backguy, pastes the some absolute altitude by 1～2m, when leveling mortar is smeared in the shop, presses current direction with spacing 1～2m floating screed earlier, and screed-coat lattice seam is set, and width is 20mm, and lattice seam maximum spacing is 6m;
(3) brush key coat grout: utilize polymkeric substance, cement and water to form the key coat grout, the key coat grout is cement: polymkeric substance=1:1～3:2 by the quality proportioning, add suitable quantity of water, guarantee that the degree of mobilization of key coat grout is at 180mm～200mm, the key coat grout is brushed uniformly in substrate surface, thickness is about 1mm, after brushing is finished, begins to carry out the construction of screed-coat mortar immediately;
(4) configuration polymer modification rubber mortar: this mortar by weight, composition by following proportion mixes: cement 30-40 part, water 5-20 part, polymkeric substance 2-10 part, sand 50-90 part, rubber powder 5-15 part, organic fibre 0.05-0.15 part, mineral admixture 0-5 part, auxiliary agent 0-1 part, admixture 0-0.5 part; Cement, water, organic fibre, sand, rubber powder, mineral admixture, admixture and the auxiliary agent of certainweight are at first put into stirrer to be stirred, after stirring, put into polymkeric substance at last again, the product of formation is the polymer modification rubber mortar for the building screed-coat;
(5) pave, make real and levelling: by fixing absolute altitude with look for gradient dress ash, pave polymer modification rubber mortar, strike off with scraping to shoulder by the floating screed bar, look for the back, slope to rub with the hands with wooden float and put down the plasterer's trowel press polish;
(6) secondary compaction is rubbed with the hands flat: after heavy mistake of waiting to swim, set foot on footprint but the degree of being that do not sink with the people, carried out secondary compaction with plasterer's trowel again and rub with the hands flat;
(7) maintenance: screed-coat is floating, the later 24 hours water seasonings of compacting, and preserving period is 10～14 days;
(8) check and accept: can be delivered for use after the screed-coat that forms after the construction of polymer modification rubber mortar is finished satisfies technical requirements.
Press such scheme, the denseness control of polymer modification rubber mortar is at 7cm, the polymer modification rubber mortar ultimate compression strength 〉=10MPa of 7 days curing age, folding strength 〉=3.5MPa, mortar ultimate compression strength 〉=the 15MPa of 28 days curing age, folding strength 〉=5MPa, chloride permeability coefficient≤50 * 10
-14m
2/ s, thermal conductivity≤0.5W/mk.
Newly mix the corresponding serviceability of denseness of polymer modification rubber mortar; The corresponding toughness of the ratio of sclerosis post polymerization thing modified rubber mortar ultimate compression strength and folding strength (backfin than), backfin is compared more little, and toughness is more good; The corresponding barrier performance of chloride permeability coefficient, the chloride permeability coefficient is more low, and barrier performance is more good; The corresponding heat insulation effect of thermal conductivity, thermal conductivity is more low, and heat insulation effect is more good.
The beneficial effect that polymer modification rubber mortar of the present invention compared with prior art has:
1, polymer modification rubber mortar has significant snappiness advantage, because the modular ratio normal sands of rubber powder is much smaller, after part sand is replaced by rubber powder, the integral, flexible modulus of cement-based material reduces, snappiness strengthens, add after the polymkeric substance, at slurry, form between sand and the rubber powder and have higher cohesive force and flexible polymeric film, thereby the sand-cement slurry inner constructional form is changed, effectively increase its snappiness, compare conventional cement mortar screed-coat material, after 28 days curing age, the backfin ratio of polymer modification rubber mortar can reduce more than 20%;
2, polymer modification rubber mortar has excellent antiseepage and resistance to cleavage, traditional screed-coat material fragility is big, deformability is poor, easy to crack, anti-seepage effect is bad, the adding of polymkeric substance and rubber powder can significantly improve the deformability of mortar, thereby improve the splitting resistance of mortar, the adding of organic fibre can effectively stop the development of mortar internal fissure, improves its splitting resistance, and polymkeric substance can effectively be filled harmful space of mortar inside, strengthen the density of mortar, thereby the anti-permeability performance of mortar is strengthened, compare conventional cement mortar screed-coat material, the chloride permeability coefficient can reduce more than 30%;
3, polymer modification rubber mortar has excellent heat insulation performance, the thermal conductivity of rubber powder self is very low, replace sand, can effectively reduce the thermal conductivity of mortar, rubber powder is equivalent to the foam air entrapment agent in addition, add in the mortar and can introduce fine, disconnected micro-pore in a large number, these porous nickel are dispersed in the mortar body, blocking-up or slowed down passing through of hot-fluid, further reduced the thermal conductivity of mortar, improved the thermal and insulating performance of mortar, compared conventional cement mortar screed-coat material, thermal conductivity can reduce more than 50%;
4, the polymer modification rubber mortar rubber powder that junked tire produces of can mass efficient dissolving, rubber powder has very strong heat resistanceheat resistant, anti-machinery and anti-degradation property, many decades can not eliminated naturally, this will take a large amount of soils, and grow mosquito easily, communicate illness also causes fire easily, therefore the rational Application of rubber powder in the screed-coat material will turn waste into wealth, and alleviate environmental pollution; The sand consumption is saved in corresponding consumption of saving natural sand significantly, on the other hand, because the performance of this mortar excellence can significantly reduce the maintenance cost in later stage, thereby significantly improve the economic performance of screed-coat mortar.
Description of drawings
Fig. 1 is the constructional method schema of polymer modification rubber mortar of the present invention.
Embodiment
Below in conjunction with embodiment and accompanying drawing technical scheme of the present invention is described further.
The present invention is used for the polymer modification rubber mortar of building screed-coat, evenly mixes the back by agglutinate and rubber powder, sand, organic fibre and forms, and agglutinate forms slurry by polymkeric substance, cement, water, mineral admixture, auxiliary agent, admixture mixing; Each composition proportion is: cement 30-40 part, water 5-20 part, polymkeric substance 2-10 part, sand 50-90 part, rubber powder 5-15 part, organic fibre 0.05-0.15 part, mineral admixture 0-5 part, auxiliary agent 0-1 part, admixture 0-0.5 part.
Among the embodiment, used cement is the general cement of silicates, and the cement intensity grade is 32.5 grades or 42.5 grades.
Used rubber powder is that in the chloroprene rubber, cis-1,4-polybutadiene rubber, polyisoprene rubber, nitrile rubber of industrial general one or several mix according to arbitrary proportion, is perhaps replaced by waste rubber, and the particle diameter of rubber powder is between 0.075～4.75mm.
Used polymkeric substance is thermosetting resin, the tar resinoid, one or more blend in the vinyl resins, perhaps for being selected from styrene-butadiene emulsion, ACRYLIC EMULSION, benzene emulsion, one or more mixture emulsions in the vinyl acetate-ethylene copolymerization emulsions, perhaps be the blend of described various kinds of resin or emulsion, perhaps for using the latex powder of above-mentioned polymer manufacture.
Used organic fibre is one or more mixing in polypropylene fibre, trevira, tynex or the polyvinyl alcohol fiber.
Adjuvant used for being suitable for softening agent or the defoamer of polymer resin material, polymer emulsion or latex powder; Used admixture is hardening accelerator or water reducer.
Used sand is that particle diameter is less than common river sand or the machine-processed sand of 4.75mm.
Described softening agent is phthalate, fatty acid ester, phosphoric acid ester, epoxy ester series, polyester or trimellitic acid ester plasticizer.
Described defoamer is polyethers defoamer or silicone antifoam agent.
Described hardening accelerator is chloride salt, Sulfates, Nitrates or organic class hardening accelerator.
Described water reducer is lignosulfonic acid salt, naphthalene system, amino class or polycarboxylate water-reducer.
The preparation procedure of polymer modification rubber mortar is with its use properties of remarkably influenced.The kind of polymkeric substance, organic fibre and dosage should try to join definite according to the final employed occasion of polymer modification rubber mortar and requirement.
With reference to shown in Figure 1, the constructional method that the present invention is used for the polymer modification rubber mortar of building screed-coat may further comprise the steps:
(1) base cleaning: before smearing the polymer modification rubber mortar of screed-coat, should the substrate surface cleaning is clean, and the moistening substrate surface of suitably sprinkling water, it mainly is the combination that is beneficial to basic unit and screed-coat, so watering reaches basic unit and screed-coat can mortise be degree, but it is excessive to sprinkle water, in order to avoid influence the drying on screed-coat surface, the postfovea of avoiding simultaneously constructing is lived aqueous vapor, causes screed-coat to produce hollowing;
(2) fixedly snap the line is looked for the gradient: according to slope requirement, the slope is looked in backguy, pastes the some absolute altitude by 1～2m, when leveling mortar is smeared in the shop, press current direction with spacing 1～2m floating screed earlier, and screed-coat lattice seam is set, width is 20mm, and the lattice seam is communicated with thermal insulation layer, and lattice seam maximum spacing is 6m;
(3) brush key coat grout: utilize polymkeric substance, cement and water to form the key coat grout, the key coat grout is cement: polymkeric substance=1:1～3:2 by the quality proportioning, add suitable quantity of water, guarantee that the degree of mobilization of key coat grout is at 180mm～200mm, the key coat grout is brushed uniformly in substrate surface, key coat grout thickness is about 1mm, after the brushing of key coat grout is finished, begins to carry out the construction of screed-coat mortar immediately;
(4) configuration polymer modification rubber mortar: according to the material mixture ratio of above-mentioned polymer modification rubber mortar, cement, water, organic fibre, sand, rubber powder, admixture and the defoamer of certainweight are at first put into stirrer to be stirred, after stirring, put into polymkeric substance at last again, the product of formation is the polymer modification rubber mortar for the building screed-coat;
(5) pave, make real and levelling: by fixing absolute altitude with look for gradient dress ash, pave polymer modification rubber mortar, strike off with scraping to shoulder by the floating screed bar, look for the back, slope to rub with the hands with wooden float and put down the plasterer's trowel press polish;
(6) secondary compaction is rubbed with the hands flat: after heavy mistake of waiting to swim, set foot on footprint but the degree of being that do not sink with the people, carried out secondary compaction with plasterer's trowel again and rub with the hands flat;
(7) maintenance: screed-coat is floating, the later 24 hours water seasonings of compacting, and preserving period is 10～14 days;
(8) check and accept: can be delivered for use after the screed-coat that forms after the construction of polymer modification rubber mortar is finished satisfies technical requirements.
Table 1 embodiment polymer modification rubber mortar material proportioning and performance gather
Embodiment 1
Material is formed: 30 parts of cement, 72 parts in sand, 5 parts of rubber powders, 9 parts in water; 3 parts of styrene-butadiene emulsion, 0.05 part of polypropylene fibre, 7 days the folding strength 3.56MPa of polymer modification rubber mortar of preparation; ultimate compression strength is 16.3MPa; backfin is than 4.58,28 days the folding strength 5.87MPa of polymer modification rubber mortar of preparation, ultimate compression strength 25.5MPa; backfin is than 4.34, and 28 days chloride permeability coefficient of mortar is 40.3 * 10
-14m
2/ s, thermal conductivity are 0.46W/mk.
Embodiment 2
Material is formed: 30 parts of cement consumptions, 63 parts in sand, 7 parts of rubber powders, 9 parts in water; 3 parts of styrene-butadiene emulsion, 0.075 part on trevira, 7 days the folding strength 3.51MPa of polymer modification rubber mortar of preparation; ultimate compression strength is 16.7MPa; backfin is than 4.76,28 days the folding strength 5.24MPa of polymer modification rubber mortar of preparation, ultimate compression strength 21.3MPa; backfin is than 4.06, and 28 days chloride permeability coefficient of mortar is 30.6 * 10
-14m
2/ s, thermal conductivity are 0.35W/mk.
Embodiment 3
Material is formed: 30 parts of cement consumptions, 72 parts in sand, 5 parts of rubber powders, 3 parts in flyash (mineral admixture), 8 parts in water, 5 parts of styrene-butadiene emulsion, 0.05 part of polypropylene fibre, 7 days the folding strength 3.23MPa of polymer modification rubber mortar of preparation, ultimate compression strength is 14.6MPa, backfin is than 4.52,28 days the folding strength 6.34MPa of polymer modification rubber mortar of preparation, ultimate compression strength 22.4MPa, backfin is than 3.53, and 28 days chloride permeability coefficient of mortar is 36.3 * 10
-14m
2/ s, thermal conductivity are 0.41W/mk.
Embodiment 4
Material is formed: 30 parts of cement consumptions, 63 parts in sand, 7 parts of rubber powders, 6 parts in water; 9 parts of styrene-butadiene emulsion; 0.05 part of polypropylene fibre, 7 days the folding strength 3.88MPa of polymer modification rubber mortar of preparation, ultimate compression strength is 16.2MPa; backfin is than 4.18; 28 days the folding strength 5.95MPa of polymer modification rubber mortar of preparation, ultimate compression strength 19.6MPa, backfin is than 3.29.28 days chloride permeability coefficient of mortar is 32.8 * 10
-14m
2/ s, thermal conductivity are 0.38W/mk.
Embodiment 5
Material is formed: 30 parts of cement consumptions, 72 parts in sand, 5 parts of rubber powders, 6 parts in water; 9 parts of styrene-butadiene emulsion; 0.075 part on trevira, 7 days the folding strength 4.13MPa of polymer modification rubber mortar of preparation, ultimate compression strength is 17.3MPa; backfin is than 4.19; 28 days the folding strength 6.86MPa of polymer modification rubber mortar of preparation, ultimate compression strength 25.8MPa, backfin is than 3.76.28 days chloride permeability coefficient of mortar is 30.6 * 10
-14m
2/ s, thermal conductivity are 0.48W/mk.
Embodiment 6
Material is formed: 30 parts of cement, 50 parts in sand, 5 parts of rubber powders, 5 parts in water, 2 parts of styrene-butadiene emulsion, 0.05 part of polypropylene fibre, 1 part of silicone antifoam agent, 0.5 part of naphthalene water reducer, 7 days the folding strength 4.26MPa of polymer modification rubber mortar of preparation, ultimate compression strength is 20.4MPa, backfin is than 4.79,28 days the folding strength 6.95MPa of polymer modification rubber mortar of preparation, ultimate compression strength 27.7MPa, backfin is than 3.99.28 days chloride permeability coefficient of mortar is 32.7 * 10
-14m
2/ s, thermal conductivity are 0.44W/mk.
Embodiment 7
Material is formed: 40 parts of cement, 90 parts in sand, 15 parts of rubber powders, 20 parts in water; 10 parts of styrene-butadiene emulsion, 0.15 part on trevira, 1 part of silicone antifoam agent; 7 days the folding strength 3.35MPa of polymer modification rubber mortar of preparation; ultimate compression strength is 15.6MPa, backfin is than 4.66,28 days the folding strength 5.08MPa of polymer modification rubber mortar of preparation; ultimate compression strength 19.3MPa, backfin is than 3.80.28 days chloride permeability coefficient of mortar is 36.8 * 10
-14m
2/ s, thermal conductivity are 0.48W/mk.
The data of every embodiment gather and see Table 1, the polymer modification rubber mortar that is used for the building screed-coat that the present invention newly mixes, the denseness control of polymer modification rubber mortar is at 7cm, the polymer modification rubber mortar ultimate compression strength 〉=10MPa of 7 days curing age, folding strength 〉=3.5MPa, mortar ultimate compression strength 〉=the 15MPa of 28 days curing age, folding strength 〉=5MPa, chloride permeability coefficient≤50 * 10
-14m
2/ s, thermal conductivity≤0.5W/mk.After 28 days curing age, compare conventional cement mortar polymer modification rubber mortar, the backfin ratio can reduce more than 20%, and the chloride permeability coefficient can reduce more than 30%, and thermal conductivity can reduce more than 50%.
The above only is preferred embodiment of the present invention, not in order to limiting the present invention, all any modifications of doing within the spirit and principles in the present invention, is equal to and replaces and improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. polymer modification rubber mortar that is used for the building screed-coat is characterized in that: this mortar is mixed by the composition of following proportion by weight:
2. polymer modification rubber mortar according to claim 1, it is characterized in that: described cement is the general cement of silicates, the cement intensity grade is 32.5 grades or 42.5 grades.
3. polymer modification rubber mortar according to claim 1; it is characterized in that: this polymer modification rubber mortar also comprises the mineral admixture of 0-5 part by weight, and described mineral admixture is flyash, granulated blast-furnace slag, volcanic ash class, chainotte or burned coal gangue.
4. polymer modification rubber mortar according to claim 1, it is characterized in that: described rubber powder is that in chloroprene rubber, cis-1,4-polybutadiene rubber, polyisoprene rubber, the nitrile rubber one or several mix according to arbitrary proportion, perhaps replaced by waste rubber, the particle diameter of rubber powder is between 0.075～4.75mm.
5. polymer modification rubber mortar according to claim 1 is characterized in that: described polymkeric substance be 1. following～4. in any one:
1. fluoropolymer resin: one or more in thermosetting resin, tar resinoid, the vinyl resins are according to the arbitrary proportion blend;
2. polymer emulsion: one or more in styrene-butadiene emulsion, ACRYLIC EMULSION, benzene emulsion, the vinyl acetate-ethylene copolymerization emulsions mix according to arbitrary proportion;
3. above-mentioned 1. fluoropolymer resin and 2. polymer emulsion according to the arbitrary proportion blend;
4. use 1. above-mentioned or the 2. or 3. latex powder of polymer manufacture.
6. polymer modification rubber mortar according to claim 1 is characterized in that: described organic fibre selects for use in polypropylene fibre, trevira, tynex or the polyvinyl alcohol fiber one or more to mix according to arbitrary proportion.
7. polymer modification rubber mortar according to claim 1, it is characterized in that: described auxiliary agent is softening agent or defoamer, described admixture is hardening accelerator or water reducer.
8. polymer modification rubber mortar according to claim 1, it is characterized in that: described sand is common river sand or machine-processed sand.
9. constructional method that is used for the polymer modification rubber mortar of building screed-coat is characterized in that: may further comprise the steps:
(1) base cleaning: before smearing the polymer modification rubber mortar of screed-coat that the substrate surface cleaning is clean, and the moistening substrate surface of sprinkling water;
(2) fixedly snap the line is looked for the gradient: according to slope requirement, the slope is looked in backguy, pastes the some absolute altitude by 1～2m, when leveling mortar is smeared in the shop, presses current direction with spacing 1～2m floating screed earlier, and screed-coat lattice seam is set, and width is 20mm, and lattice seam maximum spacing is 6m;
(3) brush key coat grout: utilize polymkeric substance, cement and water to form the key coat grout, the key coat grout is cement: polymkeric substance=1:1～3:2 by the quality proportioning, add suitable quantity of water, guarantee that the degree of mobilization of key coat grout is at 180mm～200mm, the key coat grout is brushed uniformly in substrate surface, thickness is 1mm, after brushing is finished, begins to carry out the construction of screed-coat mortar immediately;
(4) configuration polymer modification rubber mortar: this mortar by weight, composition by following proportion mixes: cement 30-40 part, water 5-20 part, polymkeric substance 2-10 part, sand 50-90 part, rubber powder 5-15 part, organic fibre 0.05-0.15 part, mineral admixture 0-5 part, auxiliary agent 0-1 part, admixture 0-0.5 part; Cement, water, organic fibre, sand, rubber powder, mineral admixture, admixture and the auxiliary agent of certainweight are at first put into stirrer to be stirred, after stirring, put into polymkeric substance at last again, the product of formation is the polymer modification rubber mortar for the building screed-coat;
(5) pave, make real and levelling: by fixing absolute altitude with look for gradient dress ash, pave polymer modification rubber mortar, strike off with scraping to shoulder by the floating screed bar, look for the back, slope to rub with the hands with wooden float and put down the plasterer's trowel press polish;
(6) secondary compaction is rubbed with the hands flat: after heavy mistake of waiting to swim, set foot on footprint but the degree of being that do not sink with the people, carried out secondary compaction with plasterer's trowel again and rub with the hands flat;
(7) maintenance: screed-coat is floating, the later 24 hours water seasonings of compacting, and preserving period is 10～14 days;
(8) check and accept: can be delivered for use after the screed-coat that forms after the construction of polymer modification rubber mortar is finished satisfies technical requirements.
10. the constructional method of polymer modification rubber mortar according to claim 9 is characterized in that: the denseness control of polymer modification rubber mortar is at 7cm, the mortar ultimate compression strength 〉=10MPa of 7 days curing age, folding strength 〉=3.5MPa; Mortar ultimate compression strength 〉=the 15MPa of 28 days curing age, folding strength 〉=5MPa, chloride permeability coefficient≤50 * 10-14m
2/ s, thermal conductivity≤0.5W/mk.
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Cited By (23)
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| CN104058680A (en) * | 2014-05-28 | 2014-09-24 | 安徽阜阳富龙建筑材料有限责任公司 | Highly waterproof flame-retardant thermal-insulation mortar and preparation method thereof |
| CN104446242A (en) * | 2014-11-17 | 2015-03-25 | 长安大学 | Anti-skid cement mortar for tunnel pavement and preparation method thereof |
| CN104496350A (en) * | 2014-12-03 | 2015-04-08 | 长安大学 | Corrosion-resistant polymer modified cement mortar and preparation method thereof |
| CN104961397A (en) * | 2015-06-23 | 2015-10-07 | 杜飞月 | Light sound insulation damping mortar and building construction method |
| CN105152582A (en) * | 2015-06-23 | 2015-12-16 | 杜飞月 | Construction method for lightweight sound-insulating damping mortar and building |
| CN105175958A (en) * | 2015-07-15 | 2015-12-23 | 常州市武进金阳光电子有限公司 | Non-asbestos-fiber oil-resistant and high-temperature-resistant calcium silicate plate and preparation method thereof |
| CN106280415A (en) * | 2016-08-09 | 2017-01-04 | 苏州极地实业有限公司 | A kind of Macromolecular adhesive cement |
| CN107500601A (en) * | 2017-08-29 | 2017-12-22 | 启东海中港建材有限公司 | A kind of concrete corrosion resistant agent and the ready-mixed concrete using this corrosion inhibitor |
| CN108546022A (en) * | 2018-05-22 | 2018-09-18 | 浙江省通用砂浆研究院 | A kind of assembled architecture high strength and high flexibility rubberized mortar and preparation method thereof |
| CN109594660A (en) * | 2018-11-27 | 2019-04-09 | 温州聚凯建设有限公司 | A kind of waterproof construction method for bathroom |
| CN110256029A (en) * | 2019-06-26 | 2019-09-20 | 东莞蓝贯新材料有限公司 | The super flexible self-leveling cement of bicomponent cement base |
| CN110790532A (en) * | 2019-11-18 | 2020-02-14 | 湖南绿色再生资源有限公司 | Waterproof and anti-aging soft ceramic tile and preparation method thereof |
| CN111472549A (en) * | 2020-05-19 | 2020-07-31 | 安徽鑫生新型建材有限公司 | Mechanized construction method of light mortar for ground cushion |
| CN111648554A (en) * | 2020-06-30 | 2020-09-11 | 北京建筑材料科学研究总院有限公司 | Anti-cracking ground filling leveling layer and construction method thereof |
| CN112062510A (en) * | 2020-09-17 | 2020-12-11 | 张浩燃 | Semi-flexible composite concrete material |
| CN112575979A (en) * | 2020-12-10 | 2021-03-30 | 中铁八局集团建筑工程有限公司 | Construction method of plastering waterproof mortar for building exterior wall |
| CN113214691A (en) * | 2021-04-08 | 2021-08-06 | 上海博喷科技有限公司 | Green environment-friendly thin spray strong film agent for underground engineering and preparation and use method thereof |
| CN114477922A (en) * | 2022-03-29 | 2022-05-13 | 湘西宏远新型建材有限公司 | Floor filling and leveling mortar for civil building decoration and preparation method thereof |
| CN114573285A (en) * | 2022-02-22 | 2022-06-03 | 兴宁市龙江建材实业有限公司 | Preparation method of polymer cement mortar with high crack resistance |
| CN115124369A (en) * | 2022-06-08 | 2022-09-30 | 深圳市建设（集团）有限公司 | SBR polymer foam fiber concrete for building external wall board and preparation method thereof |
| CN115504742A (en) * | 2022-10-18 | 2022-12-23 | 福建惠兴涂料科技发展有限公司 | High-crack-resistance leveling putty and preparation method thereof |
| CN115710109A (en) * | 2022-12-06 | 2023-02-24 | 四川大学 | Hybrid reinforced and toughened cement mortar material of shoe and clothes wastes and preparation method thereof |
| CN115849802A (en) * | 2022-11-24 | 2023-03-28 | 邦力固(上海)化工科技发展有限公司 | Floor glue and preparation method and application thereof |
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| CN102167548A (en) * | 2011-01-12 | 2011-08-31 | 周建成 | Expanded and vitrified micro ball energy accumulation and heat preservation mortar as well as preparation method and construction method thereof |
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| CN104058680B (en) * | 2014-05-28 | 2016-03-02 | 安徽阜阳富龙建筑材料有限责任公司 | High water proof fire retardant thermal insulation mortar and preparation method thereof |
| CN104058680A (en) * | 2014-05-28 | 2014-09-24 | 安徽阜阳富龙建筑材料有限责任公司 | Highly waterproof flame-retardant thermal-insulation mortar and preparation method thereof |
| CN104446242A (en) * | 2014-11-17 | 2015-03-25 | 长安大学 | Anti-skid cement mortar for tunnel pavement and preparation method thereof |
| CN104446242B (en) * | 2014-11-17 | 2016-06-29 | 长安大学 | A kind of tunnel road surface antiskid cement mortar and preparation method thereof |
| CN104496350A (en) * | 2014-12-03 | 2015-04-08 | 长安大学 | Corrosion-resistant polymer modified cement mortar and preparation method thereof |
| CN104961397A (en) * | 2015-06-23 | 2015-10-07 | 杜飞月 | Light sound insulation damping mortar and building construction method |
| CN105152582A (en) * | 2015-06-23 | 2015-12-16 | 杜飞月 | Construction method for lightweight sound-insulating damping mortar and building |
| CN105175958A (en) * | 2015-07-15 | 2015-12-23 | 常州市武进金阳光电子有限公司 | Non-asbestos-fiber oil-resistant and high-temperature-resistant calcium silicate plate and preparation method thereof |
| CN106280415A (en) * | 2016-08-09 | 2017-01-04 | 苏州极地实业有限公司 | A kind of Macromolecular adhesive cement |
| CN107500601A (en) * | 2017-08-29 | 2017-12-22 | 启东海中港建材有限公司 | A kind of concrete corrosion resistant agent and the ready-mixed concrete using this corrosion inhibitor |
| CN107500601B (en) * | 2017-08-29 | 2019-11-12 | 启东海中港建材有限公司 | A kind of concrete corrosion resistant agent and the ready-mixed concrete using this corrosion inhibitor |
| CN108546022A (en) * | 2018-05-22 | 2018-09-18 | 浙江省通用砂浆研究院 | A kind of assembled architecture high strength and high flexibility rubberized mortar and preparation method thereof |
| CN109594660A (en) * | 2018-11-27 | 2019-04-09 | 温州聚凯建设有限公司 | A kind of waterproof construction method for bathroom |
| CN110256029A (en) * | 2019-06-26 | 2019-09-20 | 东莞蓝贯新材料有限公司 | The super flexible self-leveling cement of bicomponent cement base |
| CN110790532A (en) * | 2019-11-18 | 2020-02-14 | 湖南绿色再生资源有限公司 | Waterproof and anti-aging soft ceramic tile and preparation method thereof |
| CN111472549A (en) * | 2020-05-19 | 2020-07-31 | 安徽鑫生新型建材有限公司 | Mechanized construction method of light mortar for ground cushion |
| CN111648554A (en) * | 2020-06-30 | 2020-09-11 | 北京建筑材料科学研究总院有限公司 | Anti-cracking ground filling leveling layer and construction method thereof |
| CN112062510A (en) * | 2020-09-17 | 2020-12-11 | 张浩燃 | Semi-flexible composite concrete material |
| CN112575979A (en) * | 2020-12-10 | 2021-03-30 | 中铁八局集团建筑工程有限公司 | Construction method of plastering waterproof mortar for building exterior wall |
| CN113214691A (en) * | 2021-04-08 | 2021-08-06 | 上海博喷科技有限公司 | Green environment-friendly thin spray strong film agent for underground engineering and preparation and use method thereof |
| CN114573285A (en) * | 2022-02-22 | 2022-06-03 | 兴宁市龙江建材实业有限公司 | Preparation method of polymer cement mortar with high crack resistance |
| CN114477922A (en) * | 2022-03-29 | 2022-05-13 | 湘西宏远新型建材有限公司 | Floor filling and leveling mortar for civil building decoration and preparation method thereof |
| CN115124369A (en) * | 2022-06-08 | 2022-09-30 | 深圳市建设（集团）有限公司 | SBR polymer foam fiber concrete for building external wall board and preparation method thereof |
| CN115504742A (en) * | 2022-10-18 | 2022-12-23 | 福建惠兴涂料科技发展有限公司 | High-crack-resistance leveling putty and preparation method thereof |
| CN115849802A (en) * | 2022-11-24 | 2023-03-28 | 邦力固(上海)化工科技发展有限公司 | Floor glue and preparation method and application thereof |
| CN115710109A (en) * | 2022-12-06 | 2023-02-24 | 四川大学 | Hybrid reinforced and toughened cement mortar material of shoe and clothes wastes and preparation method thereof |
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