CN105198338A - Composite environment-friendly waterproof dry-mixed mortar and preparation method thereof - Google Patents
Composite environment-friendly waterproof dry-mixed mortar and preparation method thereof Download PDFInfo
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- CN105198338A CN105198338A CN201510591711.5A CN201510591711A CN105198338A CN 105198338 A CN105198338 A CN 105198338A CN 201510591711 A CN201510591711 A CN 201510591711A CN 105198338 A CN105198338 A CN 105198338A
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- 239000004570 mortar (masonry) Substances 0.000 title claims abstract description 70
- 239000002131 composite material Substances 0.000 title claims abstract description 31
- 238000002360 preparation method Methods 0.000 title claims abstract description 18
- 239000000843 powder Substances 0.000 claims abstract description 103
- CWBIFDGMOSWLRQ-UHFFFAOYSA-N trimagnesium;hydroxy(trioxido)silane;hydrate Chemical class O.[Mg+2].[Mg+2].[Mg+2].O[Si]([O-])([O-])[O-].O[Si]([O-])([O-])[O-] CWBIFDGMOSWLRQ-UHFFFAOYSA-N 0.000 claims abstract description 41
- 239000000835 fiber Substances 0.000 claims abstract description 32
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 29
- 239000000853 adhesive Substances 0.000 claims abstract description 27
- 230000001070 adhesive effect Effects 0.000 claims abstract description 27
- 239000004576 sand Substances 0.000 claims abstract description 26
- -1 polysiloxane Polymers 0.000 claims abstract description 22
- 239000011575 calcium Substances 0.000 claims abstract description 20
- 229910052791 calcium Inorganic materials 0.000 claims abstract description 20
- 239000004568 cement Substances 0.000 claims abstract description 20
- 239000002893 slag Substances 0.000 claims abstract description 15
- 239000005995 Aluminium silicate Substances 0.000 claims abstract description 14
- 235000012211 aluminium silicate Nutrition 0.000 claims abstract description 14
- 229920001577 copolymer Polymers 0.000 claims abstract description 14
- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical compound O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 claims abstract description 14
- 229920001479 Hydroxyethyl methyl cellulose Polymers 0.000 claims abstract description 11
- 229920001296 polysiloxane Polymers 0.000 claims abstract description 11
- 239000000126 substance Substances 0.000 claims abstract description 11
- 239000000654 additive Substances 0.000 claims abstract description 10
- 239000004816 latex Substances 0.000 claims abstract description 6
- 229920000126 latex Polymers 0.000 claims abstract description 6
- 230000004048 modification Effects 0.000 claims description 50
- 238000012986 modification Methods 0.000 claims description 50
- 229910052620 chrysotile Inorganic materials 0.000 claims description 40
- 239000000203 mixture Substances 0.000 claims description 23
- 238000003756 stirring Methods 0.000 claims description 14
- 239000000839 emulsion Substances 0.000 claims description 13
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 11
- NTWZYMJGDYYGNL-UHFFFAOYSA-N [Na].C[Si] Chemical compound [Na].C[Si] NTWZYMJGDYYGNL-UHFFFAOYSA-N 0.000 claims description 10
- 239000011400 blast furnace cement Substances 0.000 claims description 10
- 239000003795 chemical substances by application Substances 0.000 claims description 10
- 239000011734 sodium Substances 0.000 claims description 10
- 229910052708 sodium Inorganic materials 0.000 claims description 10
- CERQOIWHTDAKMF-UHFFFAOYSA-M Methacrylate Chemical compound CC(=C)C([O-])=O CERQOIWHTDAKMF-UHFFFAOYSA-M 0.000 claims description 9
- 229920000620 organic polymer Polymers 0.000 claims description 9
- 239000001267 polyvinylpyrrolidone Substances 0.000 claims description 9
- 235000013855 polyvinylpyrrolidone Nutrition 0.000 claims description 9
- 229920000036 polyvinylpyrrolidone Polymers 0.000 claims description 9
- 230000000996 additive effect Effects 0.000 claims description 8
- 241000353097 Molva molva Species 0.000 claims description 7
- 239000011398 Portland cement Substances 0.000 claims description 7
- 229920001971 elastomer Polymers 0.000 claims description 7
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims description 6
- VBIIFPGSPJYLRR-UHFFFAOYSA-M Stearyltrimethylammonium chloride Chemical group [Cl-].CCCCCCCCCCCCCCCCCC[N+](C)(C)C VBIIFPGSPJYLRR-UHFFFAOYSA-M 0.000 claims description 6
- 238000001914 filtration Methods 0.000 claims description 6
- 229910052500 inorganic mineral Inorganic materials 0.000 claims description 6
- 239000011707 mineral Substances 0.000 claims description 6
- 238000000967 suction filtration Methods 0.000 claims description 6
- BDHFUVZGWQCTTF-UHFFFAOYSA-M sulfonate Chemical compound [O-]S(=O)=O BDHFUVZGWQCTTF-UHFFFAOYSA-M 0.000 claims description 6
- 238000005406 washing Methods 0.000 claims description 6
- 239000000292 calcium oxide Substances 0.000 claims description 4
- ODINCKMPIJJUCX-UHFFFAOYSA-N calcium oxide Inorganic materials [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 claims description 4
- 150000002734 metacrylic acid derivatives Chemical class 0.000 claims description 4
- 125000004079 stearyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 claims description 4
- 150000003871 sulfonates Chemical class 0.000 claims description 4
- 239000007864 aqueous solution Substances 0.000 claims description 3
- 238000001354 calcination Methods 0.000 claims description 3
- BRPQOXSCLDDYGP-UHFFFAOYSA-N calcium oxide Chemical compound [O-2].[Ca+2] BRPQOXSCLDDYGP-UHFFFAOYSA-N 0.000 claims description 3
- 238000010298 pulverizing process Methods 0.000 claims description 3
- 239000000377 silicon dioxide Substances 0.000 claims description 3
- 235000012239 silicon dioxide Nutrition 0.000 claims description 3
- 229960001866 silicon dioxide Drugs 0.000 claims description 3
- 238000005336 cracking Methods 0.000 abstract description 7
- 229920000642 polymer Polymers 0.000 abstract description 7
- CERQOIWHTDAKMF-UHFFFAOYSA-N Methacrylic acid Chemical compound CC(=C)C(O)=O CERQOIWHTDAKMF-UHFFFAOYSA-N 0.000 abstract 1
- 229910000831 Steel Inorganic materials 0.000 abstract 1
- 239000010881 fly ash Substances 0.000 abstract 1
- 239000010959 steel Substances 0.000 abstract 1
- 230000006835 compression Effects 0.000 description 8
- 238000007906 compression Methods 0.000 description 8
- 230000000694 effects Effects 0.000 description 6
- 239000000463 material Substances 0.000 description 6
- 238000004078 waterproofing Methods 0.000 description 5
- 150000001875 compounds Chemical class 0.000 description 3
- 238000010276 construction Methods 0.000 description 3
- 238000006116 polymerization reaction Methods 0.000 description 3
- 239000002994 raw material Substances 0.000 description 3
- 239000002002 slurry Substances 0.000 description 3
- 230000008719 thickening Effects 0.000 description 3
- 230000003487 anti-permeability effect Effects 0.000 description 2
- 239000002861 polymer material Substances 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N 2-Propenoic acid Natural products OC(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000002742 anti-folding effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000003776 cleavage reaction Methods 0.000 description 1
- 239000004567 concrete Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007123 defense Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 229910010272 inorganic material Inorganic materials 0.000 description 1
- 239000011147 inorganic material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000002086 nanomaterial Substances 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 239000011414 polymer cement Substances 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 230000007017 scission Effects 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
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
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/02—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing hydraulic cements other than calcium sulfates
- C04B28/04—Portland cements
-
- 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
- C04B20/00—Use of materials as fillers for mortars, concrete or artificial stone according to more than one of groups C04B14/00 - C04B18/00 and characterised by shape or grain distribution; Treatment of materials according to more than one of the groups C04B14/00 - C04B18/00 specially adapted to enhance their filling properties in mortars, concrete or artificial stone; Expanding or defibrillating materials
- C04B20/02—Treatment
- C04B20/023—Chemical treatment
-
- 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
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/20—Resistance against chemical, physical or biological attack
- C04B2111/27—Water resistance, i.e. waterproof or water-repellent materials
-
- 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
- C04B2201/00—Mortars, concrete or artificial stone characterised by specific physical values
- C04B2201/50—Mortars, concrete or artificial stone characterised by specific physical values for the mechanical strength
Abstract
The invention provides composite environment-friendly waterproof dry-mixed mortar and a preparation method thereof. The composite environment-friendly waterproof dry-mixed mortar is prepared from cement, sand, modified polymer latex powder, admixtures and chemical additives, wherein the sand is composed of fine sand and kaolin tailing sand, the modified polymer latex powder is siloxane-styrene-acrylate copolymer latex powder, the admixtures comprise high-calcium fly ash, steel slag micropowder and modified chrysotile fibers, and the chemical additives comprise modified waterproof adhesive powder, dialkyl polysiloxane, methacrylic acid, hydroxyethyl methyl cellulose and 2-acrylamide sodium 2-methallyl sulfonate. In this way, the composite environment-friendly waterproof dry-mixed mortar is high in compressive strength, good in waterproof performance, high in cracking resistance and shrinkage resistance and low in cost.
Description
Technical field
The present invention relates to a kind of material of construction, specifically, is a kind of compound waterproof environmental protection dry-mix and preparation method thereof.
Background technology
In the last few years, the large-scale development application of urban underground space, and the repairerment of a large amount of underground civil defense engineering and recover to utilize, waterproofing work many employings rigid flexible system of these occasions, the back side construction of multi-way prevention, therefore water-repellancy mortar series products has the very large market requirement.
Traditional waterproof mortar mostly is rigid waterproofing mortar product, and this series products can be used for the waterproof construction of back side, upstream face, for waterproofing works such as underground, roofing, exterior walls, can construct at the fundamental plane of humidity; But finding in engineer applied practically, there is the problems such as impermeability difference, water-intake rate and contract with dry rate are large and easy to crack in this kind of rigid waterproofing mortar product.For improving the use properties of waterproof mortar, extensively adopt the measures such as admixture water-resisting agent blocking penetrating passage at present, this serves certain effect to the defect reducing concrete and sand-cement slurry, but owing to not changing the inner constructional form of material, therefore effect is undesirable, especially can not meet buildings waterproof requirement as waterproof layer.
Polymer-modified waterproof mortar is one of effective method improving rigid waterproofing mortar anti-permeability performance, and the sand-cement slurry after polymer modification is because having good anti-permeability performance, less Young's modulus and be subject to extensive concern.Waterproof polymer mortar is with cement, fine aggregate for main raw material, the material modified and water-proof material that is that mix with suitable proportioning with polymkeric substance and additive etc.But, a large amount of cases of engineerings shows, although mix the waterproof impervious characteristic that polymkeric substance improves mortar in sand-cement slurry, there is early strong phenomenon in mortar, but the later stage of mortar anti-folding, ultimate compression strength are all on a declining curve, some even occurs that cracking now, and entirety weakens its waterproof action.
At present according to the requirement of standard GB/T/T984-2011 " Polymer cement materials ", each performance index for waterproof mortar improve further.How to prepare the dry-mix that a kind of ultimate compression strength is large and water resistance is good and become the problem that relevant manufacturer needs solution badly.
Summary of the invention
Main purpose of the present invention is to provide a kind of composite environmental-friendly waterproof dry powder mortar and preparation method thereof, its deficiency existed for prior art is improved, not only ultimate compression strength is large, water resistance is good to make dry-mix, and cracking resistance resisted shrinkage performance is high, and cost is low.
For reaching above object, the technical solution used in the present invention is: a kind of composite environmental-friendly waterproof dry powder mortar is by cement, sand, polymer-modified rubber powder, adulterant and chemical additive composition, wherein, described cement is made up of ordinary Portland cement and Portland blast furnace slag cement, described sand is made up of fine sand and Kaolin Tailings sand, described polymer-modified rubber powder is siloxanes-cinnamic acrylic ester emulsion copolymer powder latex powder, described adulterant comprises high-calcium fly ass, slag micro powder and modification chrysotile fiber, described chemical additive comprises modification waterproof adhesive powder, diakyl-polysiloxane, magnesinm methacrylate, hydroxyethylmethyl-cellulose and 2-acrylamide-2 methylpropene sodium sulfonate.
According to one embodiment of the invention, described composite environmental-friendly waterproof dry powder mortar is made up of following component with parts by weight: 400 parts of cement; 80 ~ 100 parts of fine sands; 100 ~ 120 parts of Kaolin Tailings sand; 10 ~ 15 parts of siloxanes-cinnamic acrylic ester emulsion copolymer powder; 60 ~ 80 parts of high-calcium fly asses; 20 ~ 30 parts of slag micro powders; 15 ~ 20 parts of modification chrysotile fibers; 8 ~ 10 parts of modification waterproof adhesive powders; 1 ~ 1.5 part of diakyl-polysiloxane; 3 ~ 5 parts of magnesinm methacrylates; 4 ~ 5 parts of hydroxyethylmethyl-celluloses; And 2 ~ 3 parts of 2-acrylamide-2 methylpropene sodium sulfonates.
According to one embodiment of the invention, described modification chrysotile fiber package is containing properties-correcting agent and chrysotile fiber, and wherein, described properties-correcting agent is octadecyl trimethyl ammonium chloride, and being able to increases octadecyl at chrysotile fiber.
According to one embodiment of the invention, described modification waterproof adhesive powder is made up of mineral powder modified and organic polymer, and wherein, described mineral powder modified is made up of methyl silicon sodium alcoholate property of modified rectorite breeze, granularity 325 mesh screen residue of breeze is not more than 10%, and described organic polymer is polyvinylpyrrolidone.
Preferably, the parts by weight of described cement component is: ordinary Portland cement 320 ~ 350, Portland blast furnace slag cement 50 ~ 80.
Preferably, the mass percent shared by silicon-dioxide in described Kaolin Tailings sand is >=90%.
Preferably, mass percent >=10% in described high-calcium fly ass shared by calcium oxide, wherein, granularity 325 mesh screen residue of described high-calcium fly ass is less than 10%.
A preparation method for composite environmental-friendly waterproof dry powder mortar, it comprises step:
S100 is by the cement of respective quality part, spun yarn, Kaolin Tailings sand, high-calcium fly ass and slag micro powder, and in homogenizer, mix is even, and wherein, whipping temp is 40 DEG C;
The siloxanes of respective quality part-cinnamic acrylic ester emulsion copolymer powder, modification chrysotile fiber and modification waterproof adhesive powder adds in described stirrer by S200, stirs 3 minutes; And
S300 is by the diakyl-polysiloxane of respective quality part, magnesinm methacrylate, hydroxyethylmethyl-cellulose and 2-acrylamide-2 methylpropene sodium sulfonate add in described stirrer and continue stirring 5 minutes, mix, obtained described composite environmental-friendly waterproof dry powder mortar.
Further, the modification chrysotile fiber in described step S200, its preparation method comprises step:
By chrysotile through 300 DEG C of calcinings 1 hour, then acidifying 2 hours in the hydrochloric acid soln of 4mol/L, suction filtration, washing, obtain chrysotile filtration product;
Described chrysotile filtration product is scattered in the octadecyl trimethyl ammonium chloride aqueous solution of 10g/L, the stirred in water bath 2 hours of 30 DEG C; And
Suction filtration, washing, dry at 80 DEG C, pulverizing, obtains modification chrysotile fiber.
Further, the modification waterproof adhesive powder in described step S200, its preparation method comprises step:
By rectorite leng breeze 60 DEG C, stir 1 minute under 300r/min after add methyl silicon sodium alcoholate properties-correcting agent, stir 5 minutes under similarity condition; And
Add polyvinylpyrrolidone mix even, obtained described modification waterproof adhesive powder, wherein, described rectorite leng breeze shared mass ratio in described waterproof adhesive powder is 96%, and polyvinylpyrrolidone accounts for 3%, and methyl silicon sodium alcoholate accounts for 1%.
Compared with prior art, beneficial effect of the present invention is: 1, described composite environmental-friendly waterproof dry powder mortar utilizes Portland blast furnace slag cement, high-calcium fly ass, slag micro powder for raw material, greatly improve impermeability and the intensity of mortar, simultaneously, introduce the inorganic adulterant of modification chrysotile threadiness, make mortar have better cracking resistance resisted shrinkage performance; 2, described composite environmental-friendly waterproof dry powder mortar is by adding siloxanes-cinnamic acrylic ester emulsion copolymer powder, has stronger thickening, water retention property, improves the ultimate compression strength of mortar further; Magnesinm methacrylate understands polymerization reaction take place with water effect in mortar, forms elastomeric polymer gel, can guarantee that mortar has excellent impervious waterproof ability.
Embodiment
Below describe and realize the present invention for disclosing the present invention to enable those skilled in the art.Preferred embodiment in below describing only as an example, it may occur to persons skilled in the art that other apparent modification.
A kind of composite environmental-friendly waterproof dry powder mortar of the present invention is by cement, sand, polymer-modified rubber powder, adulterant and chemical additive composition, wherein, described cement is made up of ordinary Portland cement and Portland blast furnace slag cement, described sand is made up of fine sand and Kaolin Tailings sand, described polymer-modified rubber powder is siloxanes-cinnamic acrylic ester emulsion copolymer powder latex powder, described adulterant comprises high-calcium fly ass, slag micro powder and modification chrysotile fiber, described chemical additive comprises modification waterproof adhesive powder, diakyl-polysiloxane, magnesinm methacrylate, hydroxyethylmethyl-cellulose and 2-acrylamide-2 methylpropene sodium sulfonate.Thus described composite environmental-friendly waterproof dry powder mortar is acted synergistically by the compound of inorganic materials and organic polymer material, to solve the problem that water resistance is poor, easy to crack, shrinking percentage is large, intensity is low that current waterproof dry powder mortar exists.
Wherein, described composite environmental-friendly waterproof dry powder mortar is made up of following component with parts by weight: 400 parts of cement; 80 ~ 100 parts of fine sands; 100 ~ 120 parts of Kaolin Tailings sand; 10 ~ 15 parts of siloxanes-cinnamic acrylic ester emulsion copolymer powder; 60 ~ 80 parts of high-calcium fly asses; 20 ~ 30 parts of slag micro powders; 15 ~ 20 parts of modification chrysotile fibers; 8 ~ 10 parts of modification waterproof adhesive powders; 1 ~ 1.5 part of diakyl-polysiloxane; 3 ~ 5 parts of magnesinm methacrylates; 4 ~ 5 parts of hydroxyethylmethyl-celluloses; And 2 ~ 3 parts of 2-acrylamide-2 methylpropene sodium sulfonates.
Wherein, described modification chrysotile fiber package is containing properties-correcting agent and chrysotile fiber, wherein, described properties-correcting agent is octadecyl trimethyl ammonium chloride, be able to increase octadecyl at chrysotile fiber, the dispersiveness of effective raising fiber, thus increase the intensity of described waterproof dry powder mortar, prevent mortar from ftractureing.
Wherein, described modification waterproof adhesive powder is made up of mineral powder modified and organic polymer, and wherein, described mineral powder modified is made up of methyl silicon sodium alcoholate property of modified rectorite breeze, and granularity 325 mesh screen residue of breeze is not more than 10%, and described organic polymer is polyvinylpyrrolidone.Wherein, described rectorite leng breeze shared mass ratio in described modification waterproof adhesive powder is 96%, and organic polymer accounts for 3%, and methyl silicon sodium alcoholate accounts for 1%.
Thus, described modification chrysotile fiber is fibrous inorganic adulterant, effectively can prevent the cracking of mortar, increase mortar strength, meanwhile, modification waterproof adhesive powder has the performance of organic polymer material and inorganic nano material concurrently, makes mortar have stronger cohesive force and cracking resistance resisted shrinkage performance, by the synergy of described modification chrysotile fiber and described modification waterproof adhesive powder, be able to the resistance to cleavage promoting described waterproof dry powder mortar further.
Preferably, the parts by weight of described cement component is: ordinary Portland cement 320 ~ 350, Portland blast furnace slag cement 50 ~ 80.Wherein, described Portland blast furnace slag cement, can the impervious water resistance of reinforced mortar as the gelling material of mortar.
Preferably, the silicon-dioxide SiO in described Kaolin Tailings sand
2shared mass percent is>=90%.
Preferably, mass percent >=10% in described high-calcium fly ass shared by calcium oxide CaO, wherein, granularity 325 mesh screen residue of described high-calcium fly ass is less than 10%.
Preferably, granularity 200 mesh screen residue of described slag micro powder is less than 10%.
Wherein, because high-calcium fly ass and slag micro powder have higher activity, the ultimate compression strength of mortar effectively can be improved.
Preferably, the siloxanes that described polymer-modified rubber powder is obtained by the mode of siloxanes, vinylbenzene and acrylic acid copolymer-cinnamic acrylic ester emulsion copolymer powder, it has stronger thickening property and water-retentivity, is improved ultimate compression strength and the water resistance of mortar further.
Wherein, the magnesinm methacrylate in chemical additive in mortar with water effect polymerization reaction take place, form elastomeric polymer gel, made described composite environmental-friendly waterproof mortar have excellent impervious waterproof ability.
A preparation method for composite environmental-friendly waterproof dry powder mortar, it comprises step:
S100 is by the cement of respective quality part, spun yarn, Kaolin Tailings sand, high-calcium fly ass and slag micro powder, and in homogenizer, mix is even, and wherein, whipping temp is 40 DEG C;
The siloxanes of respective quality part-cinnamic acrylic ester emulsion copolymer powder, modification chrysotile fiber and modification waterproof adhesive powder adds in described stirrer by S200, stirs 3 minutes; And
S300 is by the diakyl-polysiloxane of respective quality part, magnesinm methacrylate, hydroxyethylmethyl-cellulose and 2-acrylamide-2 methylpropene sodium sulfonate add in described stirrer and continue stirring 5 minutes, mix, obtained described composite environmental-friendly waterproof dry powder mortar.
Wherein, the modification chrysotile fiber in described step S200, its preparation method comprises step:
By chrysotile through 300 DEG C of calcinings 1 hour, then acidifying 2 hours in the hydrochloric acid soln of 4mol/L, suction filtration, washing, obtain chrysotile filtration product;
Described chrysotile filtration product is scattered in the octadecyl trimethyl ammonium chloride aqueous solution of 10g/L, the stirred in water bath 2 hours of 30 DEG C; And
Suction filtration, washing, dry at 80 DEG C, pulverizing, obtains modification chrysotile fiber.
Thus, owing to increasing octadecyl on chrysotile fiber, effectively improve the dispersiveness of fiber, and then increase the intensity of mortar, prevent mortar from ftractureing.
Wherein, the modification waterproof adhesive powder in described step S200, its preparation method comprises step:
By rectorite leng breeze 60 DEG C, stir 1 minute under 300r/min after add methyl silicon sodium alcoholate properties-correcting agent, stir 5 minutes under similarity condition; And
Add polyvinylpyrrolidone mix even, obtained described modification waterproof adhesive powder, wherein, described rectorite leng breeze shared mass ratio in described waterproof adhesive powder is 96%, and polyvinylpyrrolidone accounts for 3%, and methyl silicon sodium alcoholate accounts for 1%.
Wherein, described composite environmental-friendly waterproof dry powder mortar utilizes Portland blast furnace slag cement, high-calcium fly ass, slag micro powder for raw material, greatly improves impermeability and the intensity of mortar, simultaneously, introduce the inorganic adulterant of modification chrysotile threadiness, make mortar have better cracking resistance resisted shrinkage performance.
Wherein, described composite environmental-friendly waterproof dry powder mortar, by adding siloxanes-cinnamic acrylic ester emulsion copolymer powder, has stronger thickening, water retention property, improves the ultimate compression strength of mortar further; Magnesinm methacrylate understands polymerization reaction take place with water effect in mortar, forms elastomeric polymer gel, can guarantee that mortar has excellent impervious waterproof ability.
Embodiment 1
Modification chrysotile fiber and modification waterproof adhesive powder is prepared respectively according to above-mentioned preparation method.
By 320 parts of ordinary Portland cements, 80 parts of Portland blast furnace slag cements, 80 parts of fine sands, 120 parts of Kaolin Tailings sand, 80 parts of high-calcium fly asses, 20 parts of slag micro powders in homogenizer at 40 DEG C mix even; Take 15 parts of siloxanes-cinnamic acrylic ester emulsion copolymer powder, 15 parts of modification chrysotile fibers, 10 parts of modification waterproof adhesive powders add in described stirrer and stir 3 minutes at the same temperature; Take 1.5 parts of diakyl-polysiloxanes, 5 parts of magnesinm methacrylates, 5 parts of hydroxyethylmethyl-celluloses, 3 parts of 2-acrylamide-2 methylpropene sodium sulfonates add in described stirrer and continue stirring 5 minutes, fully mix, obtained described compound guarantor's waterproof dry powder mortar.
Embodiment 2,3,4: the mass fraction composition of each composition is as shown in table 1, and its preparation method is with embodiment 1.
The composition of composition in table 1, each embodiment
Described composite environmental-friendly waterproof dry powder mortar of the present invention is grey powdery, and the leading indicator detected result of mortar is as shown in table 2.
The main performance index of table 2, each embodiment mortar
| Sequence number | Test event | Unit | Embodiment 1 | Embodiment 2 | Embodiment 3 | Embodiment 4 |
| 1 | Impermeability pressure (7d) | MPa | 1.1 | 1.2 | 1.3 | 1.3 |
| 2 | Impermeability pressure (28d) | MPa | 1.6 | 1.6 | 1.7 | 1.8 |
| 3 | Ultimate compression strength | MPa | 24.5 | 24.8 | 25.0 | 25.3 |
| 4 | Cohesive strength (7d) | MPa | 1.1 | 1.1 | 1.2 | 1.3 |
| 5 | Cohesive strength (28d) | MPa | 1.4 | 1.5 | 1.5 | 1.6 |
| 6 | Shrinking percentage | ％ | 0.14 | 0.13 | 0.12 | 0.10 |
| 7 | Water-intake rate | ％ | 3.8 | 3.7 | 3.5 | 3.4 |
More than show and describe ultimate principle of the present invention, principal character and advantage of the present invention.The technician of the industry should understand; the present invention is not restricted to the described embodiments; the just principle of the present invention described in above-described embodiment and specification sheets; the present invention also has various changes and modifications without departing from the spirit and scope of the present invention, and these changes and improvements all fall in claimed scope of the present invention.The protection domain of application claims is defined by appending claims and equivalent thereof.
Claims (10)
1. a composite environmental-friendly waterproof dry powder mortar, it is characterized in that, it is by cement, sand, polymer-modified rubber powder, adulterant and chemical additive composition, wherein, described cement is made up of ordinary Portland cement and Portland blast furnace slag cement, described sand is made up of fine sand and Kaolin Tailings sand, described polymer-modified rubber powder is siloxanes-cinnamic acrylic ester emulsion copolymer powder latex powder, described adulterant comprises high-calcium fly ass, slag micro powder and modification chrysotile fiber, described chemical additive comprises modification waterproof adhesive powder, diakyl-polysiloxane, magnesinm methacrylate, hydroxyethylmethyl-cellulose and 2-acrylamide-2 methylpropene sodium sulfonate.
2. composite environmental-friendly waterproof dry powder mortar according to claim 1, is characterized in that, described composite environmental-friendly waterproof dry powder mortar is made up of following component with parts by weight: 400 parts of cement; 80 ~ 100 parts of fine sands; 100 ~ 120 parts of Kaolin Tailings sand; 10 ~ 15 parts of siloxanes-cinnamic acrylic ester emulsion copolymer powder; 60 ~ 80 parts of high-calcium fly asses; 20 ~ 30 parts of slag micro powders; 15 ~ 20 parts of modification chrysotile fibers; 8 ~ 10 parts of modification waterproof adhesive powders; 1 ~ 1.5 part of diakyl-polysiloxane; 3 ~ 5 parts of magnesinm methacrylates; 4 ~ 5 parts of hydroxyethylmethyl-celluloses; And 2 ~ 3 parts of 2-acrylamide-2 methylpropene sodium sulfonates.
3. composite environmental-friendly waterproof dry powder mortar according to claim 2, it is characterized in that, described modification chrysotile fiber package contains properties-correcting agent and chrysotile fiber, wherein, described properties-correcting agent is octadecyl trimethyl ammonium chloride, and being able to increases octadecyl at chrysotile fiber.
4. composite environmental-friendly waterproof dry powder mortar according to claim 3, it is characterized in that, described modification waterproof adhesive powder is made up of mineral powder modified and organic polymer, wherein, described mineral powder modified is made up of methyl silicon sodium alcoholate property of modified rectorite breeze, granularity 325 mesh screen residue of breeze is not more than 10%, and described organic polymer is polyvinylpyrrolidone.
5. composite environmental-friendly waterproof dry powder mortar according to claim 4, is characterized in that, the parts by weight of described cement component is: ordinary Portland cement 320 ~ 350, Portland blast furnace slag cement 50 ~ 80.
6. composite environmental-friendly waterproof dry powder mortar according to claim 5, is characterized in that, the mass percent shared by silicon-dioxide in described Kaolin Tailings sand is >=90%.
7. composite environmental-friendly waterproof dry powder mortar according to claim 6, is characterized in that, mass percent >=10% in described high-calcium fly ass shared by calcium oxide, and wherein, granularity 325 mesh screen residue of described high-calcium fly ass is less than 10%.
8., as a preparation method for the composite environmental-friendly waterproof dry powder mortar as described in arbitrary in claim 2 to 6, it is characterized in that, comprise step:
S100 is by the cement of respective quality part, spun yarn, Kaolin Tailings sand, high-calcium fly ass and slag micro powder, and in homogenizer, mix is even, and wherein, whipping temp is 40 DEG C;
The siloxanes of respective quality part-cinnamic acrylic ester emulsion copolymer powder, modification chrysotile fiber and modification waterproof adhesive powder adds in described stirrer by S200, stirs 3 minutes; And
S300 is by the diakyl-polysiloxane of respective quality part, magnesinm methacrylate, hydroxyethylmethyl-cellulose and 2-acrylamide-2 methylpropene sodium sulfonate add in described stirrer and continue stirring 5 minutes, mix, obtained described composite environmental-friendly waterproof dry powder mortar.
9. preparation method according to claim 8, is characterized in that, the modification chrysotile fiber in described step S200, and its preparation method comprises step:
By chrysotile through 300 DEG C of calcinings 1 hour, then acidifying 2 hours in the hydrochloric acid soln of 4mol/L, suction filtration, washing, obtain chrysotile filtration product;
Described chrysotile filtration product is scattered in the octadecyl trimethyl ammonium chloride aqueous solution of 10g/L, the stirred in water bath 2 hours of 30 DEG C; And
Suction filtration, washing, dry at 80 DEG C, pulverizing, obtains modification chrysotile fiber.
10. preparation method according to claim 9, is characterized in that, the modification waterproof adhesive powder in described step S200, and its preparation method comprises step:
By rectorite leng breeze 60 DEG C, stir 1 minute under 300r/min after add methyl silicon sodium alcoholate properties-correcting agent, stir 5 minutes under similarity condition; And
Add polyvinylpyrrolidone mix even, obtained described modification waterproof adhesive powder, wherein, described rectorite leng breeze shared mass ratio in described waterproof adhesive powder is 96%, and polyvinylpyrrolidone accounts for 3%, and methyl silicon sodium alcoholate accounts for 1%.
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| CN201710817794.4A CN107698212A (en) | 2015-09-12 | 2015-09-12 | A kind of composite environmental-friendly waterproof dry powder mortar and preparation method thereof |
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| CN106431120A (en) * | 2016-10-11 | 2017-02-22 | 陈谓清 | External-wall waterproof paint |
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| CN105198338B (en) * | 2015-09-12 | 2017-11-10 | 泉州好友通风环保设备有限公司 | A kind of composite environmental-friendly waterproof dry powder mortar and preparation method thereof |
| CN111423184A (en) * | 2020-04-24 | 2020-07-17 | 黄振兴 | Environment-friendly anti-cracking dry powder mortar and preparation method thereof |
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| CN103058619A (en) * | 2013-01-17 | 2013-04-24 | 同济大学 | Mineral powder-doped polymer waterproof mortar and using method thereof |
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| CN101891435B (en) * | 2010-07-23 | 2012-10-03 | 武汉钢铁(集团)公司 | Waterproof and crack-resistant dry-mixed mortar of steel slag sand |
| CN104556867A (en) * | 2014-12-23 | 2015-04-29 | 久筑节能科技（天津）有限公司 | Formula of water-proof dry-mixed mortar |
| CN105198338B (en) * | 2015-09-12 | 2017-11-10 | 泉州好友通风环保设备有限公司 | A kind of composite environmental-friendly waterproof dry powder mortar and preparation method thereof |
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| CN103058619A (en) * | 2013-01-17 | 2013-04-24 | 同济大学 | Mineral powder-doped polymer waterproof mortar and using method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106431120A (en) * | 2016-10-11 | 2017-02-22 | 陈谓清 | External-wall waterproof paint |
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| CN107698212A (en) | 2018-02-16 |
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