CN104556886B - CRTS I-type plate-type non-fragment orbit emulsification asphalt cement mortar and preparation method thereof - Google Patents
CRTS I-type plate-type non-fragment orbit emulsification asphalt cement mortar and preparation method thereof Download PDFInfo
- Publication number
- CN104556886B CN104556886B CN201310480444.5A CN201310480444A CN104556886B CN 104556886 B CN104556886 B CN 104556886B CN 201310480444 A CN201310480444 A CN 201310480444A CN 104556886 B CN104556886 B CN 104556886B
- Authority
- CN
- China
- Prior art keywords
- parts
- cement mortar
- asphalt
- asphalt cement
- emulsification
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Compositions Of Macromolecular Compounds (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
The invention belongs to high-speed railway emulsification asphalt cement mortar technical field, be specifically related to a kind of CRTSI plate-type non-fragment orbit emulsification asphalt cement mortar and preparation method thereof.This cement mortar is made up of the raw material of following mass fraction: modified emulsifying asphalt 380～415 parts, dry mash 800～880 parts, water 25～36 parts, defoamer 0.11～0.3 part and air entraining agent 0.3～2 parts.CRTSI plate-type non-fragment orbit emulsification asphalt cement mortar prepared by the present invention is owing to applying the modified emulsifying asphalt containing styrene-butadiene latex and resin emulsion, both improve the cryogenic property of pitch, improve again the fluidity of CA mortar, early strength, frost resistance and weatherability.Compared with prior art, it is easy that the CRTSI plate-type non-fragment orbit emulsification asphalt cement mortar of the present invention has preparation technology, and the simple feature of equipment, the non-fragment orbit laid with this emulsification asphalt cement mortar extends service life.
Description
Technical field
The invention belongs to high-speed railway emulsification asphalt cement mortar technical field, be specifically related to a kind of CRTSI plate-type non-fragment orbit
With emulsification asphalt cement mortar and preparation method thereof.
Background technology
In ballastless track of high-speed railway development course, what technology was the most perfect surely belongs to the plate-type ballastless track i.e. CRTS I of Japan
Type and the plate-type ballastless track CRTS II type of Germany, both templates are required for emulsification asphalt cement mortar i.e. CA(cement
Asphalt mortar) mortar does bed course.CA mortar be by the powders such as cement, fine aggregate, aluminium powder, compound, emulsified asphalt,
The mortar with property that the plurality of liquids such as water, defoamer, air entraining agent and other additive prepare through special process stirring,
It is a kind of novel semi-rigid organic/inorganic composite material, both there is certain elasticity, there is again certain intensity, at non-fragment orbit
In play leveling, damping, the effect that buffers and support.In structure and serviceability, there is larger difference in both templates.
The key technology of CRTS I type is CA mortar, and the key technology of CRTS II type is the preparation of track plates.Japan is from nineteen sixty-five
Begin one's study, through the experimental studies of more than 30 years and examination paving, develop and be applicable to warm area, cold district, field patch
Various CA mortars of different nature, the price comparison of these mortars is high, the raw material preparing mortar is also had more restriction simultaneously,
Need special producer and special production technology.
The development of China Railway High-speed Systems in Certain Developed Countries more in the world is late, after 2004, just first backward Japan of the former Ministry of Railways,
Germany etc. buy high ferro technology, after introducing, digest, absorbing, have carried out innovating in conjunction with China's actual conditions again.Therefore, domestic
Research to ballastless track of high-speed railway CA mortar is applied later, the emulsification asphalt cement mortar of development and the emulsified asphalt of import
Cement mortar there is also gap at aspect of performances such as air content, early strength, frost resistance, weatherabilities, and China region is wide,
North and south geology and weather condition difference are too big, and CA mortar performance is required higher, even if using state completely by particularly severe cold area
Outer raw material and mortar technology of preparing, also can not fully meet the needs of China's geographical environment and weather.
In Chinese patent CN100334032C, the preparation method of emulsification asphalt cement mortar is mainly by regulation normal silicate water
Mud and the mixed proportion of sulphate aluminium cement, after the early strength of the 1d of raising emulsification asphalt cement mortar and expansion, volume stablizes
Property.Possibly together with cationic chloroprene latex, flyash, redisperse in Chinese patent CN101058493B emulsification asphalt cement mortar
Latex powder, lignocellulosic and cellulose ether etc., form more complicated.The emulsified bitumen concrete of Chinese patent CN1858016A
Mortar is suitable only for warm area and uses.
Summary of the invention
It is an object of the invention to provide a kind of CRTS I-type plate-type non-fragment orbit emulsification asphalt cement mortar, this emulsified bitumen concrete
Mortar early strength height, good fluidity, frost resistance and good weatherability, be particularly suitable for cold district；Invention also provides it
Preparation method.
CRTS I-type plate-type non-fragment orbit emulsification asphalt cement mortar of the present invention, by the raw material group of following mass fraction
Become: modified emulsifying asphalt 380～415 parts, dry mash 800～880 parts, water 25～36 parts, defoamer 0.11～0.3 part and
Air entraining agent 0.3～2 parts.
Emulsified asphalt used by the present invention is modified emulsifying asphalt, and modifying agent used by modified emulsifying asphalt is composite modifier, Yi Zhongwei
SBR emulsion, can be greatly enhanced the cryogenic property of pitch；One is resin emulsion, good with cement compatibility, permissible
Improve caking property and the early strength of mortar.This emulsified asphalt slurry early strength is high, frost resistance and good weatherability, it is adaptable to I
The various different geographical environmental condition of state, especially cold district, can improve non-fragment orbit service life simultaneously.
Described modified emulsifying asphalt is made up of the raw material of following mass fraction: matrix pitch 58～63 parts, styrene-butadiene latex 2～10
Part, interpolymer latex of polystyrene and acrylic ester 1～8 parts, compound emulsifying agent 0.5～8 parts, stabilizer 0.01～2 parts, acid 0.1～
3 parts and water 35～40 parts.
Wherein, in this modified emulsifying asphalt:
Described matrix pitch preferred 70# or 90# heavy traffic paving asphalt.
Described styrene-butadiene latex is the anion poly-type of breast, and solid content is 40～60%, and styrene monomer content is 20～50wt.%,
Styrene-butadiene latex is good with bitumen compatibility, can improve resistance to low temperature and the frost resistance of pitch.
Described interpolymer latex of polystyrene and acrylic ester is anionic, and solid content is 40～50%.Cinnamic acrylic ester is altogether
Poly-emulsion is good with cement compatibility, can improve the cohesive force of mortar, early strength, elastic modelling quantity and frost resistance.
Described compound emulsifying agent is made up of nonionic emulsifier and cationic emulsifier, nonionic emulsifier preferred octyl phenol polyoxy
The ethoxy radix of the one in vinethene, NPE, OPEO and NPE is
8-30, ethoxy radix only more than 8 emulsifying agent just have good water solubility.The preferred octadecyl trimethyl of cationic emulsifier
One or more in ammonium chloride, alkyl bi-quaternary ammonium salt or aminated lignin.
Described stabilizer uses high-molecular organic material and/or inorganic salts.High-molecular organic material preferably polyethylene alcohol, cellulose
Or polyacrylamide, it is used for improving viscosity and the density of aqueous phase, increases the resistance of bitumen particle Brownian movement, improve modified emulsifying
The stability of asphalt system.Inorganic salts preferably calcium chloride or ammonium chloride, be used for strengthening the electric double layer effect around emulsion particle, increase
Big ζ-potential value, increases intergranular mutually exclusive power, slows down intergranular cohesion speed, improves emulsifying capacity, improves emulsion
Stability, particularly low tempertaure storage stability, it is also possible to reduce quaternary ammonium salt emulsifying agent consumption.
Described acid preferably hydrochloric acid or adipic acid.The addition of acid can regulate pH value, increases stablizing of modified emulsifying asphalt system
Property, emulsifier can be reduced simultaneously.
Described dry mash is made up of the raw material of following mass fraction: cement 30～37 parts；Fine sand 63～72 parts；Swelling agent 2.8～
3.2 parts and aluminium powder 0.0020～0.0030 part.
In this dry mash:
Cement preferred early strength silicate cement, strength grade is one or both mixing in 42.5R, 52.5R.
Fine sand preferred mountain sand, river sand, maximum particle diameter is less than 2.50mm.
Swelling agent preferred calcium sulphoaluminate class swelling agent, portland cement volume in aquation process of setting can shrink, and therefore uses silicon
The mortar of acid salt cement configuration also can produce volume contraction during cementation solidifying, and this can cause between track plates and concrete bed
Gap occurs, Lack of support thus threaten the traffic safety of bullet train, it is therefore necessary in dry mash, add corresponding expansion
Agent makes volumetric expansion after mortar hardening, compensates the Volume Loss of contraction with this.
Aluminium powder preferred flakey aluminium powder, adds volume when flakey aluminium powder can make mortar hardening in early days and produces expansion.
Defoamer preferred polyoxy silane defoamer, the addition of defoamer, on the one hand can suppress the generation of bubble during mortar mix,
On the other hand the air pocket generated in also making mortar ruptures rapidly, and after preventing mortar hardening, internal structure and surface form bigger sky
Gap, thus reduce intensity and the frost resistance of mortar.
Air entraining agent preferred rosin air entraining agent, air entraining agent is in mortar whipping process, plays introducing and is uniformly distributed in a large number, stablizes
And the effect of the micro-bubble closed, can stop or suppress the generation of small ice body in cement mortar, beneficially the frost resistance of mortar.
Component used in formula in the present invention is commercially available prod.
The preparation method of CRTSI plate-type non-fragment orbit emulsification asphalt cement mortar of the present invention is:
According to raw material proportioning, in CA mortar stirred tank, add modified emulsifying asphalt, water, defoamer successively, with 50～70r/min
Speed stirring under, dry mash, air entraining agent are added in stirred tank, after charging, with the speed of 120～150r/min
Stirring 3～5min, then stir 1～2min with the speed of 70～80r/min, i.e. can get product of the present invention.
Wherein the preparation method of modified emulsifying asphalt is:
Compound emulsifying agent is joined after the water of 50～65 DEG C dissolves, be sequentially added into styrene-butadiene latex, cinnamic acrylic ester copolymerization
Emulsion, stabilizer, agitated, add acid and adjust pH to be 3～5, be prepared as emulsion and add in colloid mill, make at colloid mill
Under with, the heated bitumen that temperature is 130～140 DEG C is even added in colloid mill, then emulsifies 2～3min and can be prepared by.
There is advantages that
CRTSI plate-type non-fragment orbit emulsification asphalt cement mortar prepared by the present invention is owing to applying containing styrene-butadiene latex and tree
The modified emulsifying asphalt of fat liquor, had both improved the cryogenic property of pitch, improve again the fluidity of CA mortar, early strength,
Frost resistance and weatherability.Compared with prior art, the CRTSI plate-type non-fragment orbit emulsification asphalt cement mortar of the present invention has
Having preparation technology easy, the simple feature of equipment, the non-fragment orbit laid with this emulsification asphalt cement mortar extends service life.
Detailed description of the invention
Below in conjunction with embodiment, the invention will be further described.
The present invention is prepared for 3 kinds of different modified emulsifying asphalts, and preparation method is identical, and modified emulsifying asphalt 1# is by following mass parts
The raw material composition of number: 90# heavy traffic paving asphalt 60 parts, styrene-butadiene latex 5 parts, interpolymer latex of polystyrene and acrylic ester 5 parts, Composite Milk
(nonionic emulsifier OPEO op-10 is 0.5 part to agent 3 parts, cationic emulsifier octadecyl trimethyl
Ammonium chloride 1831 is 2 parts, and cationic emulsifier aminated lignin RH-C01 is 0.5 part), 1 part of calcium chloride, hydrochloric acid 0.3 part,
35 parts of water.
The preparation method of modified emulsifying asphalt is:
Compound emulsifying agent is joined after the water of 60 ± 5 DEG C dissolves, be sequentially added into styrene-butadiene latex, cinnamic acrylic ester copolymerization breast
Liquid, stabilizer, the agitated acid for adjusting pH value that adds, to 3～5, is prepared as emulsion and adds in colloid mill, make at colloid mill
Under with, being even added in colloid mill by the heated bitumen that temperature is 135 ± 5 DEG C, pitch emulsifies 2min after adding again, the most available
Modified emulsifying asphalt 1#.
Preparing modified emulsifying asphalt 2#, 3#, raw material composition is shown in Table 1, and pitch used by 2# is 90# pitch, and pitch used by 3# is 70#
Pitch.1#, 2#, 3# modified emulsifying asphalt of preparation is evaporated residue test, analyzes its character and be shown in Table 2.
Table 1 modified emulsifying asphalt raw material composition table
Table 2 modified emulsifying asphalt evaporated residue property list
Wherein, in comparative example 1, the preparation of emulsified asphalt does not adds styrene-butadiene latex, interpolymer latex of polystyrene and acrylic ester, and remaining is such as
The preparation method of modified emulsifying asphalt.
Illustrate that the emulsification asphalt cement mortar of the present invention has good fluidity, early anti pressured intension by embodiment 1～6 high, weather-proof
Property, the feature of good frost resistance.
The emulsification asphalt cement mortar preparation method of embodiment 1～6 is identical, it may be assumed that
According to each raw material proportioning, in CA mortar stirred tank, add modified emulsifying asphalt, water, defoamer successively, 50～70r/min
Speed stirring under, dry mash, air entraining agent are added in stirred tank, after charging, with the speed of 120～150r/min
Stirring 5min, then stir 2min with the speed of 70～80r/min, i.e. can get product of the present invention.
Each raw material proportioning used by embodiment 1～6 is shown in Table 3, and dry mash used, defoamer, air entraining agent kind are identical, dry mash
Consisting of: cement 34 parts, fine sand 68 parts, swelling agent 3.0 parts, aluminium powder 0.0025 part, all in terms of mass fraction.Will contrast
In example 1, the unmodified emulsified asphalt of preparation replaces modified emulsifying asphalt to prepare as a comparison case 2 according to the method for embodiment 1～6
Product.
Embodiment 1～6 emulsification asphalt cement mortar is analyzed, detect main performance index, and with unmodified emulsified asphalt
Contrasting, main performance index is shown in Table 4.
Table 3 emulsification asphalt cement mortar raw material proportioning table
Table 4 emulsification asphalt cement mortar main performance index table
Index in table 4 is " the passenger dedicated railway line CRTSI plate-type provisional technical conditions of non-fragment orbit cement emulsified asphalt mortar "
In technical indicator.
From table 4 and table 5 it can be seen that the CRTSI plate-type non-fragment orbit emulsification asphalt cement mortar prepared of the present invention is permissible
Improve the cryogenic property of pitch, compared with unmodified, the low temperature ductility of pitch can be increased substantially, particularly improve freeze proof
Property and weatherability, show excellence performance.
Claims (5)
1. a CRTS I-type plate-type non-fragment orbit emulsification asphalt cement mortar, it is characterised in that be made up of the raw material of following mass fraction: modified emulsifying asphalt 380～415 parts, dry mash 800～880 parts, water 25～36 parts, defoamer 0.11～0.3 part and air entraining agent 0.3～2 parts；
Described modified emulsifying asphalt is made up of the raw material of following mass fraction: matrix pitch 58～63 parts, styrene-butadiene latex 2～10 parts, interpolymer latex of polystyrene and acrylic ester 1～8 parts, compound emulsifying agent 0.5～8 parts, stabilizer 0.01～2 parts, acid 0.1～3 part and water 35～40 parts；
Described compound emulsifying agent is made up of nonionic emulsifier and cationic emulsifier, and nonionic emulsifier is OPEO or NPE, and the ethoxy radix of nonionic emulsifier is 8-30；Cationic emulsifier is one or more in OTAC, alkyl bi-quaternary ammonium salt or aminated lignin；
Described stabilizer is high-molecular organic material and/or inorganic salts；High-molecular organic material is polyvinyl alcohol, cellulose or polyacrylamide；Inorganic salts are calcium chloride or ammonium chloride；
The preparation method of described modified emulsifying asphalt is: joined by compound emulsifying agent after dissolving in the water of 50～65 DEG C, it is sequentially added into styrene-butadiene latex, interpolymer latex of polystyrene and acrylic ester, stabilizer, agitated, add acid for adjusting pH value to 3～5, it is prepared as emulsion and adds in colloid mill, under colloid mill effect, the matrix pitch that temperature is 130～140 DEG C is even added in colloid mill, then emulsifies 2～3min and can be prepared by；
Described dry mash is made up of the raw material of following mass fraction: cement 30～37 parts；Fine sand 63～72 parts；Swelling agent 2.8～3.2 parts and aluminium powder 0.0020～0.0030 part.
Emulsification asphalt cement mortar the most according to claim 1, it is characterised in that: described matrix pitch is 70# or 90# heavy traffic paving asphalt.
Emulsification asphalt cement mortar the most according to claim 1, it is characterised in that: described interpolymer latex of polystyrene and acrylic ester is anionic, and solid content is 40～50%.
Emulsification asphalt cement mortar the most according to claim 1, it is characterised in that: described acid is hydrochloric acid or adipic acid.
5. the preparation method of the arbitrary described CRTS I-type plate-type non-fragment orbit emulsification asphalt cement mortar of claim 1-4, it is characterised in that step is as follows:
Modified emulsifying asphalt, water, defoamer is added successively in stirred tank, under speed with 50～70r/min stirs, dry mash, air entraining agent are added in stirred tank, after charging, speed with 120～150r/min stirs 3～5min, then prepares product with the speed stirring 1～2min of 70～80r/min.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310480444.5A CN104556886B (en) | 2013-10-15 | 2013-10-15 | CRTS I-type plate-type non-fragment orbit emulsification asphalt cement mortar and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310480444.5A CN104556886B (en) | 2013-10-15 | 2013-10-15 | CRTS I-type plate-type non-fragment orbit emulsification asphalt cement mortar and preparation method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104556886A CN104556886A (en) | 2015-04-29 |
| CN104556886B true CN104556886B (en) | 2016-08-31 |
Family
ID=53074075
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310480444.5A Active CN104556886B (en) | 2013-10-15 | 2013-10-15 | CRTS I-type plate-type non-fragment orbit emulsification asphalt cement mortar and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104556886B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106904882B (en) * | 2017-01-21 | 2019-02-19 | 浙江益森科技股份有限公司 | A kind of preparation method of Emulsified asphalt for slab ballastless track cement mortar |
| CN115215612B (en) * | 2022-07-15 | 2023-03-21 | 武汉铁路职业技术学院 | Composite mortar for filling layer of plate-type ballastless track and preparation method thereof |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3320785B2 (en) * | 1992-07-10 | 2002-09-03 | クラリアント インターナショナル リミテッド | Formulated polymer cement mortar powder composition for spray base adjustment and spray base adjustment method |
| CN1858017A (en) * | 2006-03-30 | 2006-11-08 | 中铁八局集团有限公司 | Anti-freezing type cement asphalt mortar and its preparing method |
| CN101508848B (en) * | 2009-03-18 | 2011-10-12 | 广州路翔股份有限公司 | Modified emulsified asphalt, production method and CA mortar comprising the emulsified asphalt |
| CN102173646B (en) * | 2011-03-22 | 2012-08-01 | 中国建筑股份有限公司 | CA (cement and asphalt mortar) additive for CRTS I plate-type ballastless tracks and application method thereof |
| CN102219446A (en) * | 2011-03-28 | 2011-10-19 | 湖南盛林建材科技有限公司 | Modified emulsified bitumen cement waterproof coating and preparation method thereof |
-
2013
- 2013-10-15 CN CN201310480444.5A patent/CN104556886B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN104556886A (en) | 2015-04-29 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103265249B (en) | A kind of Fast rush-repair mortar for ballastless track filling layer and its preparation method and application | |
| CN101643584B (en) | Modified emulsified asphalt with excellent temperature adaptability and preparation method thereof | |
| CN101948623A (en) | Rubber powder modified emulsified asphalt and preparation method thereof and CA mortar prepared by emulsified asphalt | |
| CN103866667B (en) | Semi-flexible heavy-load pavement paving structure | |
| CN104003681B (en) | A kind of offshore wind farm jacket injection material and constructional method thereof | |
| CN104628322B (en) | A kind of semi-flexible Rut resistance ground surface material and preparation method thereof | |
| CN103242002B (en) | Cold-mix semi-flexible composite pavement material and preparation method thereof | |
| CN109824318A (en) | A kind of cold mixing cold-application anionic emulsified bitumen and preparation method thereof, application | |
| CN104151844B (en) | A kind of cationic emulsified modified asphalt and the application in plate-type ballastless track | |
| CN102558885B (en) | Emulsified asphalt used for high-speed railway, mortar containing emulsified asphalt and preparation method of mortar | |
| CN104250443B (en) | High ferro modified emulsifying asphalt and preparation method thereof | |
| Sun et al. | Grouting material development and dynamic grouting test of broken rock mass | |
| CN102219446A (en) | Modified emulsified bitumen cement waterproof coating and preparation method thereof | |
| CN104559254A (en) | Early-strength emulsion for cold regeneration of waste asphalt pavement and preparation method and application thereof | |
| CN101139465B (en) | High-dense emulsified asphalt and preparation method thereof | |
| CN102180622B (en) | Cement epoxy asphalt mortar for ballastless track and preparation method thereof | |
| CN110002897A (en) | A kind of novel energy-saving environment-friendly roadbed roadbed Foam lightweight soil and preparation method thereof | |
| CN101475349A (en) | Vertical connected plate type unballasted track cement emulsified bitumen mortar | |
| CN112694304B (en) | Cold recycling and old asphalt pavement cold joint adhesive for pavement reconstruction and extension | |
| CN103508702B (en) | A kind of Cold-mix phase change type asphalt mixture for thermal energy storage | |
| CN104556886B (en) | CRTS I-type plate-type non-fragment orbit emulsification asphalt cement mortar and preparation method thereof | |
| Meng et al. | Review of emulsified asphalt modification mechanisms and performance influencing factors | |
| CN104692728A (en) | Slurry material for semi-flexible road surface | |
| CN100457830C (en) | High-performance Sasobit and SBR modified emulsified asphalt, and its preparation method and uses | |
| Wang et al. | The compatibility and preparation of the key components for cement and asphalt mortar in high-speed railway |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |