CN101058493A - CA mortar for plate-type slag-free orbit and preparation method thereof - Google Patents
CA mortar for plate-type slag-free orbit and preparation method thereof Download PDFInfo
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- CN101058493A CN101058493A CNA2006100189362A CN200610018936A CN101058493A CN 101058493 A CN101058493 A CN 101058493A CN A2006100189362 A CNA2006100189362 A CN A2006100189362A CN 200610018936 A CN200610018936 A CN 200610018936A CN 101058493 A CN101058493 A CN 101058493A
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- 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
- C04B26/00—Compositions of mortars, concrete or artificial stone, containing only organic binders, e.g. polymer or resin concrete
- C04B26/02—Macromolecular compounds
- C04B26/26—Bituminous materials, e.g. tar, pitch
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- 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
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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
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
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- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
The invention discloses a CA slurry and manufacturing method of board-typed non-slag rail to fill the high-speed railroad subgrade, which comprises the following steps: blending dry powder of CA mortar and CA mortar emulsion and water with weight rate at 100:50-55:4-8 to form the CA mortar; allocating the dry powder of the CA mortar with cement, AEA swelling agent, coal ash, cement accelerator, aluminium powder, defoamer, highly effective dehydragent, dispersible emulsion powder, fine sand, AE air-entrainer, wood cellulose and cellulose ether; making slow-breaking slow hardening cation emulsified tar and composite emulsion of polychloroprene latex as CA mortar emulsion; stirring the prepared material, mortar emulsion and water; adding the dry powder of the mortar to stir; manufacturing the dry powder of CA mortar; adopting industrial manufacturing to produce stable-quality product; making the manufacturing and transportation conveniently.
Description
Technical field:
The present invention relates to a kind of material of construction and preparation method thereof, particularly a kind of CA mortar for plate-type slag-free orbit and production method thereof that is applicable to perfusion Track and railway roadbed.
Background technology:
Continuous development along with economic construction, current China railways passenger traffic just develops towards the direction of high speed, the highest operation speed per hour is called as high-speed railway at the railway more than 200 kilometers, high speed railway track proposes very high requirement to roadbed and railway roadbed, for guaranteeing the stiff stability and the high ride of track, adopting the structure formation of plate-type slag-free orbit has been a kind of trend.Plate-type slag-free orbit structural elasticity layer is the CementAsphalt mortar, be called for short the CA mortar, it consists of pitch and mixes a kind of elasticity roadbed material that other several macromolecular materials form, be the key components of not having the quarrel railway, its function is to provide reasonable track elasticity, satisfies high ride, the comfortableness of train driving.
At present, the CA mortar also is in the pilot development stage at home, and Chinese patent ZL02139237.4 and ZL200410023087.0 disclose a kind of ballastless track plate CA mortar separately.Wherein ZL02139237.4 is from construction and this operation situation in several years, effect is still undesirable, and problem mainly still appears on the CA mortar, and existing C A mortar flowability is bad, operable time short, sand easily separates, solidify the back volumetric shrinkage and exceed standard, cracking phenomena etc. appears in the part.ZL200410023087.0 has not yet to see the relevant report of application, but from its construction technology, seems complicated harsh, is unfavorable for site operation.
Summary of the invention
The purpose of this invention is to provide a kind of CA mortar for plate-type slag-free orbit and preparation method, existing C A mortar flowability is bad, operable time is short and using method is complicated, construction technology is harsh and the problem of transportation inconvenience to solve, to satisfy the demand of high-speed railway high volume applications.
Technical scheme of the present invention is: a kind of CA mortar for plate-type slag-free orbit is characterized in that: it is the mixture that CA mortar dry powder and CA mortar emulsion and water are mixed in proportion composition, and each component concentration is calculated as with parts by weight in the mixture:
CA mortar dry powder 100 weight parts
CA mortar emulsion 50～55 weight parts
Water 4～8 weight parts.
Above-mentioned CA mortar dry powder, by the mixture that following component raw material is formed, each component concentration is calculated as with mass fraction in the mixture:
0.065～0.085 part of 0.8～0.88 part of AEA swelling agent of cement
0.01～0.04 part of 0.12～0.20 part of cement hardener of flyash
0.0005～0.0010 part of 0.0002～0.0005 part of defoamer of aluminium powder
0～0.003 part of 0.008～0.012 part of redispersable latex powder of high efficiency water reducing agent
2.00～2.40 parts of AE air entrapment agents 0.～0.0004 of fine sand
0～0.0004 part of 0～0.0014 part of ether of cellulose of lignocellulose.
Above-mentioned CA mortar emulsion is that cationic emulsified bitumen mixes the multiple emulsion of forming with polychloroprene latex, and the ratio of emulsified bitumen and polychloroprene latex is calculated as by weight in this mixture:
Emulsified bitumen 100 weight parts
Polychloroprene latex 6～10 weight parts;
Emulsified bitumen in the described CA mortar emulsion is the mixture of being made through bitumen emulsifying machine high speed shear or grinding by matrix pitch and emulsifying agent, stablizer, water, and each component concentration is calculated as with parts by weight in the mixture:
Matrix pitch 55～65 weight parts
Primary emulsion 1～3 weight part
Co-emulsifier 0.3～0.6 weight part
Water 35～40 weight parts
Stablizer 0.10～0.3 weight part;
Described polychloroprene latex is that water oil ratio is 35～45: 65～55 cationic chloroprene latex.
Another feature of the present invention is: a kind of ballastless track preparation method of CA mortar, and it is characterized in that: it may further comprise the steps:
A, get the raw materials ready:, prepare CA mortar dry powder, CA mortar emulsion and water respectively in following ratio according to the total amount of need with mortar:
CA mortar dry powder 100 weight parts
CA mortar emulsion 50～55 weight parts
Water 4～8 weight parts;
B, with the measured water of pro rata and CA mortar emulsion simultaneously or successively drop in the stirrer starts stirrer;
C, the CA mortar dry powder that measures stirred drops into stirrer, should not surpass 10 minutes from beginning to be dosed into the material time, throw expect after stirring 3 to 5 minutes;
D, the check of finished product CA mortar:
With J-shaped funnel check CA mortar, require: degree of mobilization in 16～26 seconds, air content is 8% to 12%.
Because adopt technique scheme, the present invention's CA mortar for plate-type slag-free orbit and production method thereof are compared with existing CA mortar for plate-type slag-free orbit and production method thereof, have following positively effect:
One, can guarantee CA mortar quality:
1, because CA mortar for plate-type slag-free orbit of the present invention is to adopt CA mortar dry powder and CA mortar emulsion and water to be mixed and made into, wherein CA mortar dry powder product computerizeds control in factory and mixes, the CA mortar emulsion of preparation CA mortar also is to produce and become product in factory in advance, can overcome the error that the artificial batching in working-yard is brought, make product keep uniform high product quality.
2,,,, make CA mortar quality height so its density improves greatly so polychloroprene latex, pitch particle can adhere to well with the cement particulate because the CA mortar emulsion adopts is cationic chloroprene latex with to split the cationic emulsified bitumen of slow hardening type slowly compound.
3, add flyash in the CA mortar dry powder of the present invention, improved density, the flowability of CA mortar, reduced the bleeding and the segregation of mortar, made CA mortar finished product homogeneous, not stratified, and increased impermeability and chemical resistance, reduced Cl
-Extended capability finally makes the CA mortar significantly improve aspect weather resistance.
4, the redispersion latex powder of adding in the CA mortar dry powder of the present invention is a kind of binary or ternary multipolymer that is formed by vinyl acetate and carboxylic NSC 11801-VeoVa or ethene or acrylate, the modified emulsion powder that the process spraying drying obtains, it has good redispersible, again be dispersed into emulsion when contacting, and its chemical property and initial latex are identical with water.It is applied in the CA mortar, can improve its multiple performance, as: improve cohesive force, force of cohesion, reduce water-absorbent, reduce Young's modulus, strengthen folding strength, impact-resistance, wear resistance and weather resistance.
5, also added lignocellulose and ether of cellulose in the CA mortar dry powder of the present invention, had performance effects such as generation that reduces CA mortar crack phenomenon and the water conservation that strengthens the CA mortar, levelling property, film forming, bonding, CA mortar quality is improved greatly.
Lignocellulose is to have the crosslinked function of intensive, mix with other materials and can overlap between the fiber of back immediately as the material of blanket, the fibrous texture of this material can be locked in the water of 2～6 times of own wts therebetween with the water conservation slow setting, this structure also has the function of conduction moisture simultaneously, make itself surface and interface all have enough moisture to carry out aquation, when the CA mortar injection, this fibrous texture can be broken, at this moment portion water branch throws away from fiber, viscosity is reduced, and workability improves; When external force stopped, fibrous texture recovered rapidly again and moisture is sucked back, and recovers original viscosity.
Described ether of cellulose is the semisynthetic high molecular polymer of a kind of non-ionic type, and it is applied to have compound action in the mortar of the present invention: the performance such as water conservation, levelling property, film forming, bonding that can strengthen the CA mortar.
Two, easy construction, quick:
1, CA mortar process for preparation of the present invention does not have the strict harsh stirring order that feeds intake, and can guarantee quality product, makes construction more convenient, quick again;
2, because the CA mortar emulsion of preparation CA mortar adopts is to split slow hardening type cationic emulsifier slowly, can provide sufficient churning time for preparation CA mortar process, operable time is long, the construction technology performance is good.
Three, convenient transportation:
CA mortar dry powder of the present invention, product is just mixed even before dispatching from the factory, and before not adding water, steady quality, thereby, can utilize the logistics system of high development to finish the supply of material, adopt special concrete or bulk cement tanker and supporting machinery, just can realize that mechanize is carried and construction, be specially adapted to the occasion of high-speed railway high volume applications.
Below, in conjunction with the embodiments the present invention's the plate-type slag-free orbit technical characterictic with CA dry powder and CA mortar for plate-type slag-free orbit and preparation method thereof is further described.
Description of drawings: do not have
Embodiment:
Embodiment one～embodiment six
A kind of CA mortar for plate-type slag-free orbit, it is by the CA mortar dry powder, the CA mortar emulsion, the mixture that water is formed, each component concentration in the mixture (referring to subordinate list one) is calculated as with parts by weight:
CA mortar dry powder 100 weight parts
CA mortar emulsion 50～55 weight parts
Water 4～8 weight parts.
The mixture that above-mentioned CA mortar dry powder is made up of cement, AEA swelling agent, flyash, cement hardener, aluminium powder, defoamer, high efficiency water reducing agent, redispersable latex powder, fine sand, each component concentration is calculated as with mass fraction in the mixture:
0.070 part of 0.846 part of AEA swelling agent of cement
0.027 part of 0.147 part of cement hardener of flyash
0.00053 part of 0.0002 part of defoamer of aluminium powder
0.0022 part of 0.010 part of redispersable latex powder of high efficiency water reducing agent
2.183 parts of fine sands.
This CA mortar dry powder is the mixture for preparing in plant produced, adopts packed or bulk form is transported to the working-yard.
Above-mentioned CA mortar emulsion is that cationic emulsified bitumen mixes the multiple emulsion of forming with polychloroprene latex, and the ratio of emulsified bitumen and polychloroprene latex is calculated by weight and is in this multiple emulsion:
Emulsified bitumen 100 weight parts
Polychloroprene latex 6～10 weight parts;
Described emulsified bitumen is the mixture of being made through bitumen emulsifying machine high speed shear or grinding by matrix pitch and emulsifying agent, stablizer, water, and each component concentration is calculated as with parts by weight in the mixture:
Matrix pitch 55～65 weight parts
Primary emulsion 1～3 weight part
Co-emulsifier 0.3～0.6 weight part
Water 35～40 weight parts
Stablizer 0.10～0.3 weight part;
Described polychloroprene latex is that water oil ratio is 35～45: 65～55 cationic chloroprene latex.
This CA mortar emulsion packages by the 25kg/ bucket with plastic tank in plant produced, and time limit of service should not be above 3 months.
As a kind of conversion of the embodiment of the invention, described CA mortar emulsion also can adopt other forms of commercially available asphalt emulsion, comprises positively charged ion or anionic asphalt emulsion.
A kind of conversion as the embodiment of the invention, the moiety of described CA mortar dry powder can also increase and decrease, as the lignocellulose that can add the AE air entrapment agent and have strong crosslinked function, add the semisynthetic high molecular polymer of a kind of non-ionic type---ether of cellulose or the like, each components contents also can suitably increase and decrease as required, sees embodiment seven～embodiment 12 for details.
Embodiment seven～embodiment 12
The CA mortar dry powder of various different proportionings in the CA mortar for plate-type slag-free orbit of the present invention, the mixture that it is made up of cement, AEA swelling agent, flyash, cement hardener, aluminium powder, defoamer, high efficiency water reducing agent, redispersable latex powder, fine sand, AE air entrapment agent, lignocellulose and ether of cellulose, each component concentration in the mixture of each embodiment (referring to subordinate list two) is calculated as with mass fraction:
0.065～0.085 part of 0.8～0.88 part of AEA swelling agent of cement
0.01～0.04 part of 0.12～0.20 part of cement hardener of flyash
0.0005～0.0010 part of 0.0002～0.0005 part of defoamer of aluminium powder
0～0.003 part of 0.008～0.012 part of redispersable latex powder of high efficiency water reducing agent
2.00～2.40 parts of AE air entrapment agents 0～0.0004 of fine sand
0～0.0004 part of 0～0.0014 part of ether of cellulose of lignocellulose.
In the various embodiments described above, described cement is 425 early strong ordinary Portland cements.It provides rigidity for the CA mortar, and plays quickening CA mortar emulsion breakdown of emulsion in CA mortar injection process, and early strength is provided.
Described AEA swelling agent is a kind of concrete impervious anticracking type swelling agent.Its effect is to form swelling property crystallization hydrate---ettringite in the CA mortar, making concrete produce appropriateness in early days expands, in concrete, build the 0.2Mpa-0.7Mpa compressive pre-stress, the tensile stress that this stress produces in the time of can roughly offsetting concrete shrinkage, and still keep the faint expansion impetus in the concrete middle and later periods, to compensate its shrinkage, the continuous fill concrete of while ettringite xln internal clearance, improved the pore fluid of concrete structure, improve degree of compactness, also reached the purpose of anti-permeation cracking-resistant.
Described flyash be meet China standard GB 1596-91 I level flyash standard, promptly with the 0.045mm square hole tail over less than 12% and loss on ignition be no more than 4% flyash.Its effect in the CA mortar is to reduce the mortar mixing-water requirement, improves density, the flowability of CA mortar, reduces the bleeding and the segregation of mortar, makes CA mortar finished product homogeneous, not stratified.And increase impermeability and chemical resistance, reduce Cl
-Extended capability finally makes the CA mortar significantly improve aspect weather resistance.
Described cement hardener is a kind of low alkali adjustable solidification agent of novel inorganic that can accelerate concrete coagulation and setting rate, and its composition is the mixture more than 2 kinds or 2 kinds in sodium metaaluminate, gas ash, silicon ash, aluminum oxide clinker, calcined alunite, zinc sulfate, unslaked lime, the Calcium Fluoride (Fluorspan) etc.Its objective is and improve CA mortar early strength and overcome traditional accelerating chemicals alkali content height, the shortcoming that concrete is had a negative impact.
Described aluminium powder is a kind of composite aerated dose, and it is that process usefulness is smashed to pieces or the fineness of ball milling, screening and last finishing method production is 200～300 purpose chemical analysis pure aluminium powder.The hydrogen that basic component that cement is emitted in the new sand cutting slurry and aluminium powder reaction produce forms bubble, be evenly distributed in the mortar, and the pore of formation sealing in whole volume, this reaction times is generally 1～1.5h, before cement setting, stop foaming, effect is the volume change that counteracting sedimentation and plastic shrinkage are produced, and makes the expansion that mortar produces to be needed; Fully fill up the gap between track plate and the basis; Increase the workability of slurry; Improve homogeneity; Improve the freezing and thawing performance of CA mortar.
Described defoamer is the tensio-active agent that alcohol, lipid polymer composite and derivative thereof are formed, as polyethers, higher alcohols, Virahol, lipid acid etc.It mainly acts on is can make the CA mortar mix the air pocket that produces in the system process to break, and reduces the content of air pocket.
Described high efficiency water reducing agent also is a kind of tensio-active agent, its composition is poly carboxylic acid system, naphthalene series high-efficiency water-reducing agent or trimeric cyanamide system, as FDN-5 commonly used, SM high efficiency water reducing agent etc., the present invention incites somebody to action a kind of or two kinds of composite uses wherein, and it has dispersed, wetting, the lubrication of absorption to cement granules.
Described redispersable latex powder is a kind of binary or ternary multipolymer that is formed by vinyl acetate and carboxylic NSC 11801-VeoVa or ethene or acrylate, the modified emulsion powder that obtains through spraying drying.It has good redispersible, again be dispersed into emulsion when contacting with water, and its chemical property and initial latex are identical, it is applied in the CA mortar, can improve its multiple performance, as: improve cohesive force, force of cohesion, reduce water-absorbent, reduce Young's modulus, strengthen folding strength, impact-resistance, wear resistance and weather resistance, and can improve the workability of CA mortar.
Described fine sand is clean river sand or the extra large sand between 20 order to 100 orders, as the fine aggregate of CA mortar.
The concrete air entrapment agent that described AE air entrapment agent is a kind of routine, can in CA mortar preparation process, introduce an amount of small steam bubble of sealing, these steam bubbles be uniformly distributed in the CA mortar mutually in, can cut off the capillary channel in the CA mortar shaped component, can improve the freeze proof, impervious of CA mortar.
Described lignocellulose is to have the crosslinked function of intensive, mixes to overlap as the material of blanket between the fiber of back immediately with other materials.The fibrous texture of this material can be locked in own wt 2-6 water doubly therebetween with the water conservation slow setting, this structure also has the function of conduction moisture simultaneously, make itself surface and interface all have enough moisture to carry out aquation, thereby reduce the generation of CA mortar crack phenomenon.When the CA mortar injection, this fibrous texture can be broken, and at this moment portion water branch throws away from fiber, and viscosity is reduced, and workability improves; When external force stopped, fibrous texture recovered rapidly again and moisture is sucked back, and recovers original viscosity.
Described ether of cellulose is the semisynthetic high molecular polymer of a kind of non-ionic type.It is applied to have compound action among the present invention: the performance such as water conservation, levelling property, film forming, bonding that can strengthen the CA mortar.
Embodiment 13～embodiment 18
The CA mortar emulsion of different proportionings in the CA mortar for plate-type slag-free orbit of the present invention.
This CA mortar emulsion is that cationic emulsified bitumen mixes the multiple emulsion of forming with polychloroprene latex, and the ratio of emulsified bitumen and polychloroprene latex in this mixture (referring to subordinate list three) is calculated as by weight:
Emulsified bitumen 100 weight parts
Polychloroprene latex 6～10 weight parts;
Emulsified bitumen in the described CA mortar emulsion is the mixture of being made through bitumen emulsifying machine high speed shear or grinding by matrix pitch and emulsifying agent, stablizer, water, and each component concentration is calculated as with parts by weight in the mixture:
Matrix pitch 55～65 weight parts
Primary emulsion 1～3 weight part
Co-emulsifier 0.3～0.6 weight part
Water 35～40 weight parts
Stablizer 0.10～0.3 weight part
The concrete ratio of above-mentioned each component in each embodiment is referring to subordinate list four, above-mentioned matrix pitch is 70# or 90# heavy-duty road asphalt, emulsifying agent is made of primary emulsion and co-emulsifier, described primary emulsion is to split slow hardening type cationic emulsifier slowly, described co-emulsifier is octadecyl trimethyl ammonium chloride (1831), and stablizer is the mixture of calcium chloride or ammonium chloride or polyvinyl alcohol or any two or three among them;
Described polychloroprene latex is that water oil ratio is 35～45: 65～55 cationic chloroprene latex.
Embodiment 19
The preparation method of CA mortar for plate-type slag-free orbit of the present invention, it may further comprise the steps:
A, get the raw materials ready:, prepare CA mortar dry powder, CA mortar emulsion and water respectively in following ratio according to the total amount of need with the CA mortar:
CA mortar dry powder 100 weight parts
CA mortar emulsion 50～55 weight parts
Water 4～8 weight parts
B, with the measured water of pro rata and CA mortar emulsion simultaneously or successively drop in the stirrer starts stirrer and stirred 3 minutes;
C, the CA mortar dry powder that measures is dropped into stirrer, should not surpass 10 minutes from beginning to be dosed into the material time, throw expect after stirring 3 to 5 minutes;
D, the check of finished product CA mortar:
With J-shaped funnel check CA mortar, require: degree of mobilization in 16～26 seconds, air content is 8% to 10%.
As a kind of conversion of the embodiment of the invention one to embodiment six, embodiment 19, the CA mortar emulsion in the described CA mortar for plate-type slag-free orbit also can be that emulsified bitumen and polychloroprene latex are formulated in proportion at the construction field (site).Thereby described CA mortar for plate-type slag-free orbit also can adopt CA mortar dry powder and emulsified bitumen and polychloroprene latex and water formulated in proportion at the construction field (site), and its concrete grammar is referring to embodiment 20.
Embodiment 20
Another preparation method of CA mortar for plate-type slag-free orbit of the present invention, it may further comprise the steps:
A, get the raw materials ready:, prepare the CA mortar dry powder respectively, form emulsified bitumen, polychloroprene latex and the water of CA mortar emulsion in following ratio according to the total amount of need with the CA mortar:
CA mortar dry powder 100 weight parts
Emulsified bitumen, polychloroprene latex add up to 50～55 weight parts
Water 4～8 weight parts
Wherein: the ratio of emulsified bitumen and polychloroprene latex is:
Emulsified bitumen: polychloroprene latex=100: 6～10
B, with the measured water of pro rata and emulsified bitumen, polychloroprene latex simultaneously or successively drop in the stirrer starts stirrer, stirs 3 to 5 minutes;
C, the CA mortar dry powder that measures stirred drops into stirrer, should not surpass 10 minutes from beginning to be dosed into the material time, throw expect after stirring 3 to 5 minutes;
D, the check of finished product CA mortar:
With J-shaped funnel check CA mortar, require: degree of mobilization in 16～26 seconds, air content is 8% to 10%.
The subordinate list explanation:
1, can select the CA mortar dry powder of a certain ratio among listed embodiment seven～embodiment 12 in the subordinate list two for use for used CA mortar dry powder among subordinate list one listed embodiment one～embodiment six each embodiment.
2, can select the CA mortar emulsion of a certain proportioning among embodiment 13～embodiment 18 for use for used CA mortar emulsion among subordinate list one listed embodiment one～embodiment six each embodiment.
In the subordinate list two, embodiment seven proportionings are applicable to that long-term temperature seldom is lower than 0 ℃ warm area, the construction of temperature under 15 ℃～35 ℃ operating modes, embodiment eight is applicable to that long-term temperature seldom is lower than 0 ℃ warm area, the construction of temperature under 5 ℃～15 ℃ operating modes, embodiment nine is applicable to that winter temperature is lower than 0 ℃ cold district, the construction of temperature under 15 ℃～35 ℃ operating modes, embodiment ten is applicable to that winter temperature is lower than 0 ℃ cold district, the construction of temperature under 5 ℃～15 ℃ operating modes.
Subordinate list one: CA mortar for plate-type slag-free orbit component concentration table look-up
---calculate with parts by weight
Subordinate list two: CA mortar dry powder for plate-type slag-free orbit component concentration table look-up
---calculate with mass fraction
Subordinate list three: emulsified bitumen and polychloroprene latex proportioning table look-up in the CA mortar emulsion
---calculate with parts by weight
Subordinate list four:
Each component concentration table look-up of the emulsified bitumen of CA mortar emulsion
---calculate with parts by weight
Claims (14)
1, a kind of CA mortar for plate-type slag-free orbit is characterized in that: it is by the mixture that CA mortar dry powder, CA mortar emulsion and water are formed in following ratio, and each component concentration is calculated as with parts by weight in the mixture:
CA mortar dry powder 100 weight parts
CA mortar emulsion 50～55 weight parts
Water 4～8 weight parts.
2, CA mortar for plate-type slag-free orbit according to claim 1 is characterized in that: the mixture that described CA mortar dry powder is made up of following component raw material, and each component concentration is calculated as with mass fraction in the mixture:
0.065～0.085 part of 0.8～0.88 part of AEA swelling agent of cement
0.01～0.04 part of 0.12～0.20 part of cement hardener of flyash
0.0005～0.0010 part of 0.0002～0.0005 part of defoamer of aluminium powder
0～0.003 part of 0.008～0.012 part of redispersable latex powder of high efficiency water reducing agent
2.00～2.40 parts of AE air entrapment agents 0～0.0004 of fine sand
0～0.0004 part of 0～0.0014 part of ether of cellulose of lignocellulose.
3, CA mortar for plate-type slag-free orbit according to claim 1 and 2, it is characterized in that: described CA mortar emulsion is for splitting slow hardening type cationic emulsified bitumen and polychloroprene latex multiple emulsion slowly, in this multiple emulsion, the ratio of emulsified bitumen and polychloroprene latex is calculated by weight and is:
Emulsified bitumen 100 weight parts
Polychloroprene latex 6～10 weight parts;
Emulsified bitumen in the described CA mortar emulsion is the mixture of being made through bitumen emulsifying machine high speed shear or grinding by matrix pitch and emulsifying agent, stablizer, water, and each component concentration is calculated as with parts by weight in the mixture:
Matrix pitch 55～65 weight parts
Primary emulsion 1～3 weight part
Co-emulsifier 0.3～0.6 weight part
Water 35～40 weight parts
Stablizer 0.10～0.3 weight part;
Described polychloroprene latex is that water oil ratio is 40: 60 a cationic chloroprene latex.
4, CA mortar for plate-type slag-free orbit according to claim 3, it is characterized in that: in the emulsified bitumen mixture of described CA mortar emulsion, matrix pitch is 70# or 90# heavy-duty road asphalt, emulsifying agent is made of primary emulsion and co-emulsifier, described primary emulsion is to split slow hardening type cationic emulsifier slowly, described co-emulsifier is an octadecyl trimethyl ammonium chloride, and stablizer is the mixture of calcium chloride or ammonium chloride or polyvinyl alcohol or any two or three among them.
5, CA mortar for plate-type slag-free orbit according to claim 2 is characterized in that: the AEA swelling agent in the described CA mortar dry powder is a kind of concrete anticracking type swelling agent.
6, CA mortar for plate-type slag-free orbit according to claim 2 is characterized in that: the flyash in the described CA mortar dry powder be meet the I level flyash standard of China standard GB 1596-91, promptly with the 0.045mm square hole tail over less than 12% and loss on ignition be no more than 4% flyash.
7, CA mortar for plate-type slag-free orbit according to claim 2, it is characterized in that: the cement hardener in the described CA mortar dry powder is a kind of inorganic low alkali adjustable solidification agent that can accelerate concrete coagulation and setting rate, and its composition is the mixture more than 2 kinds or 2 kinds in sodium metaaluminate, gas ash, silicon ash, aluminum oxide clinker, calcined alunite, zinc sulfate, unslaked lime or the Calcium Fluoride (Fluorspan).
8, CA mortar for plate-type slag-free orbit according to claim 2 is characterized in that: the aluminium powder in the described CA mortar dry powder is that fineness is 200～300 purpose chemical analysis pure aluminium powder.
9, CA mortar for plate-type slag-free orbit according to claim 2 is characterized in that: the defoamer in the described CA mortar dry powder is the tensio-active agent that alcohol, lipid polymer composite and derivative thereof are formed.
10, CA mortar for plate-type slag-free orbit according to claim 2 is characterized in that: the high efficiency water reducing agent in the described CA mortar dry powder is a kind of tensio-active agent, and its composition is a kind of in poly carboxylic acid system or the naphthalene series high-efficiency water-reducing agent or two kinds.
11, CA mortar for plate-type slag-free orbit according to claim 2, it is characterized in that: the redispersable latex powder in the described CA mortar dry powder is a kind of binary or ternary multipolymer that is formed by vinyl acetate and carboxylic NSC 11801-VeoVa or ethene or acrylate, the modified emulsion powder that obtains through spraying drying.
12, CA mortar for plate-type slag-free orbit according to claim 2 is characterized in that: the fine sand in the described CA mortar dry powder is clean river sand or the extra large sand between 40 order to 70 orders.
13, according to the preparation method of the described CA mortar for plate-type slag-free orbit of claim 1 to 12, it is characterized in that: it may further comprise the steps:
A, get the raw materials ready:, prepare CA mortar dry powder, CA mortar emulsion and water respectively in following ratio according to the total amount of need with mortar:
CA mortar dry powder 100 weight parts
CA mortar emulsion 50～55 weight parts
Water 4～8 weight parts;
B, with the measured water of pro rata and CA mortar emulsion simultaneously or successively drop in the stirrer starts stirrer;
C, the CA mortar dry powder that measures stirred drops into stirrer, should not surpass 10 minutes from beginning to be dosed into the material time, throw expect after stirring 3 to 5 minutes;
D, the check of finished product CA mortar:
With J-shaped funnel check CA mortar, require: degree of mobilization in 16～26 seconds, air content is 8% to 10%.
14, the preparation method of CA mortar for plate-type slag-free orbit according to claim 13 is characterized in that: described CA mortar emulsion is that employing emulsified bitumen and polychloroprene latex are formulated in proportion at the construction field (site).
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