CN101255042A - Mortar and concrete modified by emulsified asphalt - Google Patents
Mortar and concrete modified by emulsified asphalt Download PDFInfo
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- CN101255042A CN101255042A CNA2008101038087A CN200810103808A CN101255042A CN 101255042 A CN101255042 A CN 101255042A CN A2008101038087 A CNA2008101038087 A CN A2008101038087A CN 200810103808 A CN200810103808 A CN 200810103808A CN 101255042 A CN101255042 A CN 101255042A
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Abstract
The invention relates to a mortar and concrete modified by emulsified asphalt and is mainly applied in the fields of building insulation and waterproofing. The invention is characterized in that the mortar and the concrete are mainly produced by mixing inorganic cementing material, emulsified asphalt, aggregate, water and other additives. The invention uses emulsified asphalt instead of polymer emulsion or rubber powder for producing the modified cement mortar and concrete, which improves the various properties of the mortar and the concrete and has an obvious effect in the fields of building exterior wall insulation and waterproofing. Compared with the concrete without adding asphalt emulsion and film-forming polymers, the water absorption of the produced waterproof concrete is reduced by more than 20%, and the anti-chloride permeability is improved by more than 30%, and the anti-carbonation performance is improved by more than 15%. In the construction energy-saving field of external wall insulation, the polyphenyl granule insulation mortar produced with emulsified asphalt, bonding mortar and surface mortar of polystyrene board insulation system can significantly save the material cost under the premise of guaranteeing the performances.
Description
Technical field
The present invention relates to a kind of sand-cement slurry and concrete that utilizes the emulsified bitumen modification, be mainly used in fields such as insulation, waterproof, as wall thermal insulating, dykes and dams waterproof etc.
Background technology
Along with modernization process, the continuous progress of the development of building trade and Building technology and the widespread use of sand-cement slurry, performance to mortar has proposed more higher requirements, and traditional sand-cement slurry exists a lot of shortcomings, tensile strength and cohesive strength are lower as ultimate compression strength is higher, and Young's modulus is higher and deformability is relatively poor, and character is more crisp, cracking or the like makes it be faced with a lot of difficulties in application easily.Adopt polymer emulsion or re-dispersible glue powder that mortar or concrete are carried out modification, can give mortar or concrete many superior performances.A large amount of research and practices show that polymkeric substance adds cement-based mortar or concrete system, present two aspects of its acting body: to the improvement of new sand cutting slurry performance, such as improving the early stage cohesive force of mortar, improving serviceability and operable time etc.; To the improvement of back mortar performance of condensing, as improve mechanical property, improve folding strength and ultimate deformation, increase snappiness, improve mortar bonding intensity, reduce volumetric shrinkage, reduce porosity, improve impervious water tolerance etc., finally reach the function that prolongs mortar or concrete system work-ing life.Polymer modification mortar or concrete be one extensively for notion that people accepted and in building industry, obtained considerable application.
The polymer emulsion of widespread use mainly contains styrene-butadiene latex (SBR) in the actual building industry, several big classes such as acrylic emulsion and ethylene-vinyl acetate copolymer (EVA) emulsion.But because the price of these polymer emulsions is very high, limited its a large amount of application, still mainly concentrate in some mortars that can require that have specific characteristics at present, and the application in concrete still seldom in many occasions.The price of emulsified bitumen then is generally 1/10～1/5 of polymer emulsion, well below the cost of polymer emulsion.If can replace or part substituted polymer emulsion in some application scenarios, reach similar performance, then can promote polymkeric substance (pitch) modified mortar or concrete engineering greatly uses, such as the adhesive mortar and the plastering mortar of the styrofoam in subway, tunnel cement group water-proofing material, outer wall heat preservation system, the various concrete of off-shore operation, bridge etc.
Summary of the invention
The objective of the invention is to: substituting with respect to the lower emulsified bitumen of polymkeric substance price or the part replace polymeric is carried out modification to mortar and concrete, thereby invent following three kinds of type materials:
1〉invented a kind of lagging material that is used for building energy conservation---a kind of thermal insulation mortar with the emulsified bitumen modification.
The scheme of invention is: a kind of mortar by the emulsified bitumen modification, it is characterized in that mixing the mass ratio of each moiety following (porous material by volume calculates) by inorganic coagulation material (cement, gypsum), emulsified bitumen, aggregate, water and other additives (polymkeric substance, fiber, thickening material, defoamer):
Inorganic coagulation material 2.0 emulsified bitumens (Gu) 0.10～0.40
Polymkeric substance 0～0.10 thickening material 0.004～0.040
Fiber 0～0.08 defoamer 0～0.010
Water 1.8～2.8 porous material 3L/Kg～8L/Kg
Described inorganic coagulation material can be a cement, also can be gypsum, also can be other inorganic coagulation materials (as water glass etc.), also can be that cement and gypsum and other inorganic coagulation materials use together.Cement herein can be that a kind of independent use or the multiple mixing in ordinary Portland cement, early strength silicate cement, sulfate cement, aluminosulfate cement, the slag cement etc. used.Gypsum herein can be that a kind of independent use or the multiple mixing in dihydrate gypsum (plaster stone), dehydrated gyp-(anhydrite), the semi-hydrated gypsum (bassanite) used.
Described emulsified bitumen (Gu) be meant that bitumeniferous amount in the emulsified bitumen, emulsified bitumen herein can be common emulsified bitumens, also can be emulsified bitumen, as SBR modified emulsifying asphalt, SBS modified emulsifying asphalt through polymer modification.Need add-on according to the different adjustment water of emulsified bitumen concentration.
Described polymkeric substance can be a rubber powder, also can be the polymer emulsion of different solid contents.When using polymer emulsion, need add-on according to the concentration adjustment water of polymer emulsion.
Described fiber can be the polyphosphazene polymer condensating fiber, as polypropylene fibre etc., also can be natural vegetable fibre, as maize straw fiber, wheat straw fiber etc.
The add-on of described water is the amount of all water in this prescription, comprises aqueous amount of institute and the middle aqueous amount of other components (as polymer emulsion, additive etc.) in the emulsified bitumen.
Described porous material can be various polymer foam beads, as polystyrene foam particles, also can add the particle of plant through smashing, as corn stalk pellets, corn cob granule etc.
Above-mentioned a kind of with emulsified bitumen carry out modification and as the preparation method of thermal insulation mortar be raw material is prepared by said ratio after, place the husky stirrer of glue to stir, speed with 25～35r/min stirs 4min, stagnates 1min, and the speed with 40～50r/min stirs 2min again.
Meet the following conditions after the prepared thermal insulation mortar sclerosis (testing method reference standard JG 158-2004):
Ultimate compression strength 〉=200kPa;
Do apparent density between 200Kg/m
3To 600Kg/m
3
Thermal conductivity≤0.09W/ (mK);
Coefficient of softening 〉=0.7.
2〉invented a kind of adhesive mortar and plastering mortar that is used for the exterior wall heat-preserving system of building energy conservation.
The scheme of invention is: a kind of mortar by the emulsified bitumen modification, it is characterized in that being mixed by inorganic coagulation material (cement, gypsum), emulsified bitumen, aggregate, water and other additives (polymkeric substance, fiber, thickening material, defoamer), the mass ratio of each moiety is as follows:
Inorganic coagulation material 2.0 emulsified bitumens (Gu) 0.10～0.50
Polymkeric substance 0～0.32 thickening material 0.003～0.020
Fiber 0～0.04 defoamer 0～0.010
Water 0.8～2.4 sand 1.0～5.0
Water reducer 0～0.024
Described inorganic coagulation material can be a cement, also can be gypsum, also can be other inorganic coagulation materials (as water glass etc.), also can be that cement and gypsum and other inorganic coagulation materials use together.Cement herein can be that a kind of independent use or the multiple mixing in ordinary Portland cement, early strength silicate cement, sulfate cement, aluminosulfate cement, the slag cement etc. used.Gypsum herein can be that a kind of independent use or the multiple mixing in dihydrate gypsum (plaster stone), dehydrated gyp-(anhydrite), the semi-hydrated gypsum (bassanite) used.
Described emulsified bitumen (Gu) be meant that bitumeniferous amount in the emulsified bitumen, emulsified bitumen herein can be common emulsified bitumens, also can be emulsified bitumen, as SBR modified emulsifying asphalt, SBS modified emulsifying asphalt through polymer modification.Need add-on according to the different adjustment water of emulsified bitumen concentration.
Described polymkeric substance can be a rubber powder, also can be the polymer emulsion of different solid contents.When using polymer emulsion, need add-on according to the concentration adjustment water of polymer emulsion.
Described fiber can be the polyphosphazene polymer condensating fiber, as polypropylene fibre etc., also can be natural vegetable fibre, as maize straw fiber, wheat straw fiber etc.
The add-on of described water is the amount of all water in this prescription, comprises aqueous amount of institute and the middle aqueous amount of other components (as polymer emulsion, additive etc.) in the emulsified bitumen.
Described sand can be river sand, land sand, mountain sand, extra large sand or rubble, and fineness modulus is in 1.4～2.8 scopes.
Described water reducer can be a poly carboxylic acid series water reducer, also can be naphthalene water reducer.
Above-mentionedly a kind ofly carry out modification and raw material is prepared by said ratio as the preparation method of adhesive mortar and plastering mortar by emulsified bitumen, place mortar mixer to stir then, speed with 25～35r/min stirs 4min, stagnates 1min, and the speed with 40～50r/min stirs 2min again.
Prepared adhesive mortar meet the following conditions (testing method reference standard JG 149-2003):
EPS plate: foamed polystyrene board
3〉invented a kind of impervious mortar of building waterproof or concrete material of being used for.
The scheme of invention is: a kind of mortar or concrete by the emulsified bitumen modification is characterized in that being mixed by inorganic coagulation material, emulsified bitumen, aggregate, water and other additives (polymkeric substance, fiber, thickening material, defoamer).Waterproof mortar can be divided into flexible water mortar and rigid waterproofing mortar.
The mass ratio of each moiety of flexible water mortar is as follows:
Inorganic coagulation material 2.0 emulsified bitumens (Gu) 1.00～1.60
Film-forming properties polymkeric substance 0～1.80 thickening material 0～0.020
Fiber 0～0.04 defoamer 0～0.008
Water 1.4～2.4 sand 1.00～8.00
Water reducer 0～0.024
The mass ratio of each moiety of rigid waterproofing mortar is as follows:
Inorganic coagulation material 2.0 emulsified bitumens (Gu) 0.15～1.00
Film-forming properties polymkeric substance 0～1.00 thickening material 0～0.020
Fiber 0～0.04 defoamer 0～0.008
Water 0.70～1.6 sand 1.00～8.00
Water reducer 0.002～0.060
The mass ratio of each moiety of water-proof concrete is as follows:
Cement 2.0 emulsified bitumens (Gu) 0.02～1.00
Film-forming properties polymkeric substance 0～1.00 thickening material 0～0.020
Fiber 0～0.05 defoamer 0～0.010
Water 0.7～1.2 coarse-fine aggregate 2.0～8.0
Water reducer 0.002～0.060
Described inorganic coagulation material can be a cement, also can be gypsum, also can be other inorganic coagulation materials (as water glass etc.), also can be that cement and gypsum and other inorganic coagulation materials use together.Cement herein can be that a kind of independent use or the multiple mixing in ordinary Portland cement, early strength silicate cement, sulfate cement, aluminosulfate cement, the slag cement etc. used.Gypsum herein can be that a kind of independent use or the multiple mixing in dihydrate gypsum (plaster stone), dehydrated gyp-(anhydrite), the semi-hydrated gypsum (bassanite) used.
Cement in the described water-proof concrete can be that a kind of independent use in ordinary Portland cement, early strength silicate cement, sulfate cement, aluminosulfate cement, the slag cement etc. or multiple mixing are used, and also can be the complex cement of mineral admixtures such as the above-mentioned cement flyash that adds certain volume, breeze.
Described emulsified bitumen (Gu) be meant that bitumeniferous amount in the emulsified bitumen, emulsified bitumen herein can be common emulsified bitumens, also can be emulsified bitumen, as SBR modified emulsifying asphalt, SBS modified emulsifying asphalt through polymer modification.Need add-on according to the different adjustment water of emulsified bitumen concentration.
Described film-forming properties polymkeric substance can be a rubber powder, also can be the polymer emulsion of different solid contents.When using polymer emulsion, need add-on according to the concentration adjustment water of polymer emulsion.
Described fiber can be the polyphosphazene polymer condensating fiber, as polypropylene fibre etc., also can be natural vegetable fibre, as maize straw fiber, wheat straw fiber etc.
The add-on of described water is the amount of all water in this prescription, comprises aqueous amount of institute and the middle aqueous amount of other components (as polymer emulsion, additive etc.) in the emulsified bitumen.
Described sand can be river sand, land sand, mountain sand, extra large sand or rubble, and fineness modulus is in 1.4～2.8 scopes.
Described water reducer can be a poly carboxylic acid series water reducer, also can be naphthalene water reducer.
Above-mentioned a kind of mortar or concrete preparation method who carries out modification by emulsified bitumen prepares raw material by said ratio, place concrete mixer to stir then, stirs 7min with the speed of 50～70r/min.
By the prepared flexible water mortar of above prescription, its performance following (testing method reference standard JCT/894-2001):
Tensile strength 〉=0.8MPa;
Tension set 〉=150%;
Watertightness (0.3MPa, 30min), waterproof.
By the prepared rigid waterproofing mortar of above prescription, its performance following (testing method reference standard JC 474-1999):
Tensile strength 〉=1.5MPa;
Tension set 〉=30%;
Watertightness (0.3MPa, 30min), waterproof.
Do not compare with the concrete of film-forming properties polymkeric substance with adding emulsified bitumen by the prepared water-proof concrete of above prescription, its anti-permeability performance is as follows:
More than water-intake rate reduction by 20% reaches;
Resistance of chloride ion penetration can improve 30% and reach above (the NEL method of testing method reference standard CCES 01-2004);
Anti-carbonation properties improves 15% and reaches above (testing method reference standard GB 82-85).
Evidence, the present invention adopt bitumen emulsion to replace polymer emulsion or rubber powder, are used to prepare modified cement mortar and concrete, have improved mortar and concrete multiple performance, and be obvious in exterior wall field of thermal insulation and waterproof field effect.Especially in the exterior-wall heat insulation field of building energy conservation, with the polyphenyl particle heat-insulating mortar of emulsified bitumen preparation, the adhesive mortar and the plastering mortar of polyphenyl plate heat preserving system, under the prerequisite of guaranteed performance, economical with materials cost greatly.
Description of drawings
Fig. 1 is used for the process flow diagram of wall body heat preservation mortar for the emulsified bitumen modified mortar;
Fig. 2 is used for the process flow diagram of adhesive mortar, plastering mortar or waterproof mortar for the emulsified bitumen modified mortar;
Fig. 3 is used for the process flow diagram of water-proof concrete for the emulsified bitumen modified mortar.
Embodiment
For a better understanding of the present invention, further illustrate content of the present invention, but content of the present invention is not limited only to following examples below in conjunction with embodiment.
The embodiment 1-10 of thermal insulation mortar.
Embodiment 1:
Each desired raw material according to the form below is mixed (foam beads by volume adds)
1 through the speed stirring 4min of glue sand agitator with 30r/min, stagnates 1min, and the speed with 45r/min stirs 2min again.
As follows by the performance test after the prepared thermal insulation mortar sclerosis of this proportioning:
Ultimate compression strength (14 days) 475.6KPa thermal conductivity 0.065W/ (mK)
Do apparent density 385.3kg/m
3Coefficient of softening 0.76
Embodiment 2:
Each desired raw material according to the form below is mixed (foam beads by volume adds)
Through the speed stirring 4min of glue sand agitator with 25r/min, stagnate 1min, the speed with 40r/min stirs 2min again.
Embodiment 3:
Each desired raw material according to the form below is mixed (foam beads by volume adds)
Through the speed stirring 4min of glue sand agitator with 30r/min, stagnate 1min, the speed with 45r/min stirs 2min again.
Embodiment 4:
Each desired raw material according to the form below is mixed (foam beads by volume adds)
Through the speed stirring 4min of glue sand agitator with 30r/min, stagnate 1min, the speed with 45r/min stirs 2min again.
Embodiment 5:
Each desired raw material according to the form below is mixed (foam beads by volume adds)
Through the speed stirring 4min of glue sand agitator with 35r/min, stagnate 1min, the speed with 45r/min stirs 2min again.
Embodiment 6:
Each desired raw material according to the form below is mixed (corn cob granule by volume adds)
Through the speed stirring 4min of glue sand agitator with 30r/min, stagnate 1min, the speed with 45r/min stirs 2min again.
Embodiment 7:
Each desired raw material according to the form below is mixed (corn cob granule by volume adds)
Through the speed stirring 4min of glue sand agitator with 35r/min, stagnate 1min, the speed with 50r/min stirs 2min again.
Embodiment 8:
Each desired raw material according to the form below is mixed (foam beads by volume adds)
Through the speed stirring 4min of glue sand agitator with 30r/min, stagnate 1min, the speed with 45r/min stirs 2min again.
Embodiment 9:
Each desired raw material according to the form below is mixed (corn cob granule by volume adds)
Through the speed stirring 4min of glue sand agitator with 30r/min, stagnate 1min, the speed with 45r/min stirs 2min again.
Embodiment 10:
Each desired raw material according to the form below is mixed (foam beads by volume adds)
Through the speed stirring 4min of glue sand agitator with 30r/min, stagnate 1min, the speed with 45r/min stirs 2min again.
The embodiment 11-19 of adhesive mortar, plastering mortar.
Embodiment 11
Each desired raw material according to the form below is mixed
Through the speed stirring 4min of glue sand agitator with 30r/min, stagnate 1min, the speed with 45r/min stirs 2min again.
By the prepared adhesive mortar operable time of this proportioning is 2.2h, and during with the concrete wall surface matrix bond, its performance test is as follows:
Tensile bond strength (normal curing in 28 days) 0.84MPa
Tensile bond strength (28 days normal curing+7 day soaked) 0.54MPa
Resistance to compression/anti-folding 2.1
Embodiment 12
Each desired raw material according to the form below is mixed
Through the speed stirring 4min of glue sand agitator with 25r/min, stagnate 1min, the speed with 45r/min stirs 2min again.
By the prepared plastering mortar operable time of this proportioning is 3.5h, hardens fashionablely with EPS, and its performance test is as follows:
Tensile bond strength (normal curing in 28 days) 0.30MPa
Tensile bond strength (28 days normal curing+7 day soaked) 0.15MPa
Resistance to compression/anti-folding 2.7
Embodiment 13
Each desired raw material according to the form below is mixed
Through the speed stirring 4min of glue sand agitator with 25r/min, stagnate 1min, the speed with 50r/min stirs 2min again.The prepared mortar of this example is used for plastering mortar and adhesive mortar.
Embodiment 14
Each desired raw material according to the form below is mixed
Through the speed stirring 4min of glue sand agitator with 35r/min, stagnate 1min, the speed with 40r/min stirs 2min again.The prepared mortar of this example is used for plastering mortar and adhesive mortar.
Embodiment 15
Each desired raw material according to the form below is mixed
Through the speed stirring 4min of glue sand agitator with 30r/min, stagnate 1min, the speed with 45r/min stirs 2min again.The prepared mortar of this example is used for adhesive mortar.
Embodiment 16:
Each desired raw material according to the form below is mixed
Through the speed stirring 4min of glue sand agitator with 25r/min, stagnate 1min, the speed with 40r/min stirs 2min again.The prepared mortar of this example is used for adhesive mortar.
Embodiment 17
Each desired raw material according to the form below is mixed
Through the speed stirring 4min of glue sand agitator with 30r/min, stagnate 1min, the speed with 45r/min stirs 2min again.The prepared mortar of this example is used for plastering mortar and adhesive mortar.
Embodiment 18
Each desired raw material according to the form below is mixed
Through the speed stirring 4min of glue sand agitator with 30r/min, stagnate 1min, the speed with 45r/min stirs 2min again.The prepared mortar of this example is used for plastering mortar and adhesive mortar.
Embodiment 19
Each desired raw material according to the form below is mixed
Through the speed stirring 4min of glue sand agitator with 30r/min, stagnate 1min, the speed with 45r/min stirs 2min again.The prepared mortar of this example is used for plastering mortar and adhesive mortar.
The embodiment 20-24 of waterproof mortar (flexibility).
Embodiment 20:
Each desired raw material according to the form below is mixed
Through the speed stirring 7min of glue sand agitator with 60r/min.
As follows by the prepared flexible water mortar performance test of this proportioning:
Tensile strength 0.79MPa;
Tension set 272.33%;
Watertightness (0.3MPa, 30min), waterproof.
Embodiment 21
Each desired raw material according to the form below is mixed
Through the speed stirring 7min of glue sand agitator with 50r/min.
Embodiment 22
Each desired raw material according to the form below is mixed
Through the speed stirring 7min of glue sand agitator with 70r/min.
Embodiment 23
Each desired raw material according to the form below is mixed
Through the speed stirring 7min of glue sand agitator with 60r/min.
Embodiment 24
Each desired raw material according to the form below is mixed
Through the speed stirring 7min of glue sand agitator with 60r/min.
The embodiment 25-29 of waterproof mortar (rigidity).
Embodiment 25
Each desired raw material according to the form below is mixed
Through the speed stirring 7min of glue sand agitator with 60r/min.
As follows by the prepared rigid waterproofing mortar performance test of this proportioning:
Tensile strength 1.73MPa;
Tension set 70.25%;
Watertightness (0.3MPa, 30min), waterproof.
Embodiment 26
Each desired raw material according to the form below is mixed
Through the speed stirring 7min of glue sand agitator with 60r/min.
Embodiment 27
Each desired raw material according to the form below is mixed
Through the speed stirring 7min of glue sand agitator with 70r/min.
Embodiment 28
Each desired raw material according to the form below is mixed
Through the speed stirring 7min of glue sand agitator with 50r/min.
Embodiment 29
Each desired raw material according to the form below is mixed
Through the speed stirring 7min of glue sand agitator with 60r/min.
The embodiment 30-35 of water-proof concrete.
Embodiment 30
Each desired raw material according to the form below is mixed
Through the speed stirring 7min of glue sand agitator with 60r/min.
Do not compare with the concrete of film-forming properties polymkeric substance with adding emulsified bitumen by the prepared water-proof concrete of this proportioning, its anti-permeability performance is as follows:
Water-intake rate reduces by 27%;
Resistance of chloride ion penetration can improve 38%;
And anti-carbonation properties improves 19%.
Embodiment 31
Each desired raw material according to the form below is mixed
Through the speed stirring 7min of glue sand agitator with 60r/min.
Embodiment 32
Each desired raw material according to the form below is mixed
Through the speed stirring 7min of glue sand agitator with 50r/min.
Embodiment 33
Each desired raw material according to the form below is mixed
Through the speed stirring 7min of glue sand agitator with 60r/min.
Embodiment 34
Each desired raw material according to the form below is mixed
Through the speed stirring 7min of glue sand agitator with 70r/min.
Embodiment 35
Each desired raw material according to the form below is mixed
Through the speed stirring 7min of glue sand agitator with 60r/min.
Claims (27)
1, a kind of mortar with the emulsified bitumen modification is characterized in that; It is that polymkeric substance, fiber, thickening material, defoamer mix by inorganic coagulation material, emulsified bitumen, aggregate, water and other additives, and the mass ratio of each moiety is as follows, and wherein porous material by volume calculates:
Inorganic coagulation material 2.0 emulsified bitumens (Gu) 0.10～0.40
Polymkeric substance 0～0.10 thickening material 0.004～0.040
Fiber 0～0.08 defoamer 0～0.010
Water 1.8～2.8 porous material 3L/Kg～8L/Kg
2, mortar according to claim 1 is characterized in that; Described inorganic coagulation material is that cement, gypsum or other inorganic coagulation materials such as water glass or cement and gypsum and other inorganic coagulation materials use together; Described cement is that a kind of independent use or the multiple mixing in ordinary Portland cement, early strength silicate cement, sulfate cement, aluminosulfate cement, the slag cement used; Described gypsum is that a kind of independent use or the multiple mixing in dihydrate gypsum (plaster stone), dehydrated gyp-(anhydrite), the semi-hydrated gypsum (bassanite) used;
3, mortar according to claim 1 is characterized in that; Described emulsified bitumen (Gu) be meant bitumeniferous amount in the emulsified bitumen, described emulsified bitumen is common emulsified bitumen, or through the emulsified bitumen of polymer modification, as SBR modified emulsifying asphalt, SBS modified emulsifying asphalt, according to the add-on of the different adjustment water of emulsified bitumen concentration;
4, mortar according to claim 1 is characterized in that; Described polymkeric substance is a rubber powder, or the polymer emulsion of different solid contents, when using polymer emulsion, needs the add-on according to the concentration adjustment water of polymer emulsion;
5, mortar according to claim 1 is characterized in that; Described fiber is the polyphosphazene polymer condensating fiber, as polypropylene fibre etc., or natural vegetable fibre, as maize straw fiber, wheat straw fiber;
6, mortar according to claim 1 is characterized in that; The add-on of described water is the amount of all water in the prescription, comprises in the emulsified bitumen aqueous amount in the aqueous amount of institute and other components.
7, mortar according to claim 1 is characterized in that; Described porous material is various polymer foam beads, as polystyrene foam particles, perhaps adds the particle of plant through smashing, as corn stalk pellets, corn cob granule.
8, mortar according to claim 1 is characterized in that; The preparation method of described mortar is after raw material is prepared by said ratio, places the husky stirrer of glue to stir, and the speed stirring 4min with 25～35r/min stagnates 1min, and the speed with 40～50r/min stirs 2min again;
9, a kind of mortar by the emulsified bitumen modification is characterized in that: it is that polymkeric substance, fiber, thickening material, defoamer mix by inorganic coagulation material, emulsified bitumen, aggregate, water and other additives, and the mass ratio of each moiety is as follows:
Inorganic coagulation material 2.0 emulsified bitumens (Gu) 0.10～0.50
Polymkeric substance 0～0.32 thickening material 0.003～0.020
Fiber 0～0.04 defoamer 0～0.010
Water 0.8～2.4 sand 1.0～5.0
Water reducer 0～0.024
10, mortar according to claim 9 is characterized in that; Described inorganic coagulation material is a cement, or gypsum, or other inorganic coagulation materials such as water glass, or cement and gypsum and other inorganic coagulation materials use together, and described cement is that a kind of independent use or the multiple mixing in ordinary Portland cement, early strength silicate cement, sulfate cement, aluminosulfate cement, the slag cement used; Described gypsum is that a kind of independent use or the multiple mixing in dihydrate gypsum (plaster stone), dehydrated gyp-(anhydrite), the semi-hydrated gypsum (bassanite) used.
11, mortar according to claim 9 is characterized in that; Described emulsified bitumen (Gu) be meant that bitumeniferous amount in the emulsified bitumen, emulsified bitumen herein can be common emulsified bitumens, also can be emulsified bitumen, as SBR modified emulsifying asphalt, SBS modified emulsifying asphalt through polymer modification.Need add-on according to the different adjustment water of emulsified bitumen concentration.
12, mortar according to claim 9 is characterized in that; Described polymkeric substance is a rubber powder, or the polymer emulsion of different solid contents, when using polymer emulsion, needs the add-on according to the concentration adjustment water of polymer emulsion.
13, mortar according to claim 9 is characterized in that; Described fiber is the polyphosphazene polymer condensating fiber, as polypropylene fibre etc., or natural vegetable fibre, as maize straw fiber, wheat straw fiber.
14, mortar according to claim 9 is characterized in that; The add-on of described water is the amount of all water in this prescription, comprises aqueous amount of institute and the middle aqueous amount of other components (as polymer emulsion, additive etc.) in the emulsified bitumen.
15, mortar according to claim 9 is characterized in that; Described sand is river sand, land sand, mountain sand, extra large sand or rubble, and fineness modulus is in 1.4～2.8 scopes.
16, mortar according to claim 9 is characterized in that; Described water reducer is a poly carboxylic acid series water reducer, or naphthalene water reducer.
17, mortar according to claim 9 is characterized in that; The preparation method of described mortar prepares raw material by said ratio, place mortar mixer to stir then, and the speed stirring 4min with 25～35r/min stagnates 1min, and the speed with 40～50r/min stirs 2min again.
18, a kind of waterproof mortar or concrete by the emulsified bitumen modification, it is characterized in that: it is that polymkeric substance, fiber, thickening material, defoamer mix by inorganic coagulation material, emulsified bitumen, aggregate, water and other additives, and described waterproof mortar is divided into flexible water mortar and rigid waterproofing mortar.
The mass ratio of each moiety of flexible water mortar is as follows:
Inorganic coagulation material 2.0 emulsified bitumens (Gu) 1.00～1.60
Film-forming properties polymkeric substance 0～1.80 thickening material 0～0.020
Fiber 0～0.04 defoamer 0～0.008
Water 1.4～2.4 sand 1.00～8.00
Water reducer 0～0.024
The mass ratio of each moiety of rigid waterproofing mortar is as follows:
Inorganic coagulation material 2.0 emulsified bitumens (Gu) 0.15～1.00
Film-forming properties polymkeric substance 0～1.00 thickening material 0～0.020
Fiber 0～0.04 defoamer 0～0.008
Water 0.70～1.6 sand 1.00～8.00
Water reducer 0.002～0.060
The mass ratio of each moiety of water-proof concrete is as follows:
Cement 2.0 emulsified bitumens (Gu) 0.02～1.00
Film-forming properties polymkeric substance 0～1.00 thickening material 0～0.020
Fiber 0～0.05 defoamer 0～0.010
Water 0.7～1.2 coarse-fine aggregate 2.0～8.0
Water reducer 0.002～0.060
19, waterproof mortar according to claim 18 or concrete is characterized in that; Described inorganic coagulation material is a cement, or gypsum, or other inorganic coagulation materials (as water glass), or cement and gypsum and other inorganic coagulation materials use together; Described cement is that a kind of independent use or the multiple mixing in ordinary Portland cement, early strength silicate cement, sulfate cement, aluminosulfate cement, the slag cement used; Described gypsum is that a kind of independent use or the multiple mixing in dihydrate gypsum (plaster stone), dehydrated gyp-(anhydrite), the semi-hydrated gypsum (bassanite) used.
20, waterproof mortar according to claim 18 or concrete is characterized in that; Cement in the described water-proof concrete is that a kind of independent use in ordinary Portland cement, early strength silicate cement, sulfate cement, aluminosulfate cement, the slag cement etc. or multiple mixing are used, or above-mentioned cement adds the complex cement of mineral admixtures such as the flyash, breeze of certain volume.
21, waterproof mortar according to claim 18 or concrete is characterized in that; Described emulsified bitumen (Gu) be meant that bitumeniferous amount in the emulsified bitumen, emulsified bitumen herein are common emulsified bitumens, or the emulsified bitumen of process polymer modification, as SBR modified emulsifying asphalt, SBS modified emulsifying asphalt; Need add-on according to the different adjustment water of emulsified bitumen concentration.
22, waterproof mortar according to claim 18 or concrete is characterized in that; Described film-forming properties polymkeric substance is a rubber powder, or the polymer emulsion of different solid contents; When using polymer emulsion, need add-on according to the concentration adjustment water of polymer emulsion.
23, waterproof mortar according to claim 18 or concrete is characterized in that; Described fiber is the polyphosphazene polymer condensating fiber, as polypropylene fibre etc., or natural vegetable fibre, as maize straw fiber, wheat straw fiber.
24, waterproof mortar according to claim 18 or concrete is characterized in that; The add-on of described water is the amount of all water in this prescription, comprises aqueous amount of institute and the middle aqueous amount of other components (as polymer emulsion, additive etc.) in the emulsified bitumen.
25, waterproof mortar according to claim 18 or concrete is characterized in that; Described sand is river sand, land sand, mountain sand, extra large sand or rubble, and fineness modulus is in 1.4～2.8 scopes.
26, waterproof mortar according to claim 18 or concrete is characterized in that; Described water reducer is a poly carboxylic acid series water reducer, or naphthalene water reducer.
27, waterproof mortar according to claim 18 or concrete is characterized in that; Described waterproof mortar or concrete preparation method prepare raw material by said ratio, place concrete mixer to stir then, with the speed stirring 7min of 50～70r/min.
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| CNA2009101476940A Division CN101580366A (en) | 2008-04-11 | 2008-04-11 | Mortar and concrete modified by emulsified asphalt |
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