CN103803893A - Cement asphalt mortar and preparation method thereof - Google Patents
Cement asphalt mortar and preparation method thereof Download PDFInfo
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- CN103803893A CN103803893A CN201210440122.3A CN201210440122A CN103803893A CN 103803893 A CN103803893 A CN 103803893A CN 201210440122 A CN201210440122 A CN 201210440122A CN 103803893 A CN103803893 A CN 103803893A
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Abstract
The invention discloses cement asphalt mortar and a preparation method thereof. The cement asphalt mortar comprises emulsified asphalt, cement, fine sand, an expanding agent, aluminium powder, and water. The formula of the emulsified asphalt comprises asphalt, an anionic emulsifier, a cationic emulsifier, a stabilizing agent, a thickening agent, a water reducer, an antifoaming agent, alcohol, polymer latex and water. The cement asphalt mortar of the invention adopts specially prepared emulsified asphalt; when the emulsified asphalt is mixed with dry materials of cement, dry sand, and the like, the water reducer, the antifoaming agent, and the polymer latex are easy to disperse uniformly, and the contact with the dry materials is full; the water reduction effect is significant; the bleeding phenomenon of the CA mortar after pouring is effectively prevented; the workability of the emulsified asphalt with cement and fine sand is improved; with the synergistic effect of the alcohol, the freezing resistance of the CA mortar is improved; big bubbles are eliminated effectively; the CA mortar is compact and uniform in texture after molding, and has the characteristic of good weatherability. The cement asphalt mortar of the invention is especially suitable for being poured below a track plate during high speed railway building and used as a damping buffer layer.
Description
Technical field
The present invention relates to a kind of cement asphalt mortar and preparation method thereof, cement asphalt mortar pouring under plate-type ballastless track plate during especially for build high-speed railway and preparation method thereof.
Background technology
The raising requiring along with railway construction level and to railway transportation capability, demand to high-speed railway and urban light rail constantly increases, stationarity when improving train high-speed cruising and the noise producing because of concussion while alleviating train operation, generally need to adopt plate-type ballastless track technology.Plate-type ballastless track technology is by two track layings (title track plates) on reinforced cement concrete plate, below track plates, lay the buffer layer that 3-5cm is thick, this buffer layer is to be made up of emulsified bitumen, cement, fine sand and other mineral material, form cement asphalt mortar (Cement Asphalt mortar is called for short CA mortar).This technology is comparatively ripe in Japan and Germany.In CA mortar, emulsified bitumen is key material, utilizes its certain vibration energy of flexible absorbent, the noise producing because of concussion when alleviating train and advancing, and can improve stationarity and the comfortableness of train operation.The performance of emulsified bitumen directly affects serviceability and the endurance quality of cement asphalt mortar.Require emulsified bitumen not only will there is satisfactory stability, also will have good consistency with the siccative such as cement, fine sand, can not affect the hydration reaction speed of cement.For guaranteeing that mortar can pour into well, require the mortar of preparation also will there is in a long time certain mobility.In addition, homogeneous after solidifying in order to guarantee the mortar of perfusion, when the siccative mixs such as emulsified bitumen and cement, fine sand, can not produce obvious air pocket.For guaranteeing there is enough water for cement generation hydration reaction in the solidification process of cement asphalt mortar after perfusion, need to add in addition water, but excreting water phenomenon can occur when amount of water is too much or emulsifiers formula is improper.
CN101153118A discloses a kind of emulsified bitumen, and it is made up of pitch, tensio-active agent, auxiliary agent and water, and wherein tensio-active agent adopts the mixture of ionogenic surfactant and nonionic surface active agent.CN101070433A discloses a kind of emulsified bitumen and preparation method thereof, it is made up of pitch, tensio-active agent, auxiliary agent and water, and tensio-active agent adopts cationic surfactant and nonionic surface active agent is composite pitch is carried out to emulsification obtains emulsified bitumen.CN101475747A and CN101475349A disclose respectively a kind of vertical linking-board type non-fragment orbit cement asphalt mortar special-purpose emulsifying pitch and a kind of vertical linking-board type non-fragment orbit cement asphalt mortar, employing be that anionic emulsifier, stablizer, auxiliary agent etc. carry out emulsification to pitch.Emulsified bitumen prepared by aforesaid method, all generally in the time of mixing CA mortar, to add water reducer and defoamer, prepare mortar process carries out in a kind of mixing truck, belong to batch operation, because the consumption of defoamer and water reducer is little, metering is difficult to precise control, even rapid stirring, the two distribution in mortar is also difficult to evenly, will there is impact to mortar character once measure wrong or skewness, main manifestations is that froth breaking is not thorough, when pouring mortar, can below four angles of track plates, pile up more bubble, after moulding, cause the undercapacity in bight.In addition, for can be when the high-speed stirring after high-iron emulsified asphalt is mixed with a large amount of cement, fine sand breakdown of emulsion not, generally in the time producing high-iron emulsified asphalt, the consumption of tensio-active agent all can be very large, in the time of production and entrucking, just easily produce so a large amount of foams, occupy the very large space of products pot, if misoperation, emulsified bitumen foam is easily emerged from tank mouth, makes troubles to production and transport.In addition, if the foam of emulsified bitumen is too much, when forming the thick skin of one deck after lather collapse, this seed coat is to be connect and form after lather collapse by the pitch composition on foam, also cannot make again its emulsification even if stir, so can affect emulsified bitumen character, especially the upper residual content index of impact sieve, even also easily makes emulsified bitumen breakdown of emulsion.In addition, add at the construction field (site) defoamer and water reducer, complex operation step, affects construction speed, increases trouble also to the structure design of mixing truck.Polymer latex was added to while preparing latex modified emulsified bitumen in emulsified bitumen in the past; often can run into the underproof problem of stability in storage, when the latex modified emulsified bitumen of preparation stored after for some time, white latex easily swims in emulsified bitumen surface; cause layering, impact is used.As the comparative example 1 in CN101508848A and comparative example 2, although added SBS or CR latex in emulsified bitumen, on the sieve of emulsified bitumen, residual content is larger, and stability in storage is defective.Be embodied on mortar, although added water reducer in the time of mixing mortar, weathering resistance is still defective.In order to improve snappiness and the weathering resistance of cement asphalt mortar, CN101508848A utilizes modifying asphalt, cats product, nonionogenic tenside, stablizer is prepared into modified emulsifying asphalt, although can improve weathering resistance and the snappiness of CA mortar, but the emulsification difficulty of modifying asphalt is larger, to equipment requirements harshness, the emulsification dosage needing is large, the total consumption of tensio-active agent has reached 7.1%, the water reducer adding in the time preparing mortar and the amount of defoamer are also very large, the two total accounts for 3.3% of mortar total amount, cost improves greatly, wherein aromatic hydrocarbon oil used, third fractional oil, four line oil, paraffin wet goods compatilizer can affect the set time of mortar, and then affect construction speed, this patent has also been added tensio-active agent in the time of mixing mortar in addition, object be for make modified emulsifying asphalt can meet can duration of mixing requirement, increase again a procedure not only to site operation, troublesome poeration, and further increase again cost.
Summary of the invention
For the deficiencies in the prior art, the invention provides a kind of have weathering resistance,, good fluidity good without bleeding, workability, can duration of mixing long, homogeneous and be easy to cement asphalt mortar of construction and preparation method thereof.This cement asphalt mortar is poured under track plates as buffer layer while being particularly suitable for building high-speed railway.
Cement asphalt mortar of the present invention, comprises following component with the weight percent meter of cement asphalt mortar:
Emulsified bitumen 18%～24.8%,
Cement 22%～24%,
Fine sand 45%～47%,
Swelling agent 2%～2.6%,
Aluminium powder 0.0015%～0.0025%,
Water 6%～9%,
Wherein said emulsified bitumen comprises following component by weight percentage:
Pitch 55%～65%,
Cationic emulsifier 0.3%～1.5%,
Anionic emulsifier 0.3%～1.5%,
Stablizer 0.05%～0.15%,
Thickening material 0.01%～0.05%,
Water reducer 0.1%～0.5%,
Alcohol 0.8%～3.5%,
Polymer latex 1%～4%,
Water 30%～35%.
Cationic emulsifier used is quaternary ammonium salt emulsifying agent, can be one or more in octadecyl trimethyl ammonium chloride, palmityl trimethyl ammonium chloride, Dodecyl trimethyl ammonium chloride, stearyl dimethyl benzyl ammonium chloride, cetalkonium chloride, dodecyl benzyl dimethyl ammonium chloride, Cetyltrimethylammonium bromide, cetyl trimethylammonium bromide and Trimethyllaurylammonium bromide.
Anionic emulsifier used is sulfuric ester salt, is preferably one or more in sodium alkyl sulfate, polyoxyethylenated alcohol sodium sulfate; The chemical formula of described sodium alkyl sulfate is C
nh
(2n+1)-OSO
3na, wherein n=12,14 or 18.Described polyoxyethylenated alcohol sodium sulfate (AES) chemical formula is: RO (CH
2cH
2o)
n-SO
3na, wherein R is C
12～C
15alkyl, n=2 or 3.
Stablizer used is inorganic salt, comprises one or more in calcium chloride, magnesium chloride, bariumchloride and ammonium chloride etc.
Thickening material used is one or more in Walocel MT 20.000PV, carboxymethyl cellulose, Natvosol, carboxyethyl cellulose and hydroxypropylcellulose.
Water reducer used can be that one or more in sulfonated lignin, naphthalene sulfonic acidformaldehyde condensation product, sulfonated melamine compound condenses, sulfamate are composite.
Alcohol used is one or more in ethanol, propyl alcohol, Virahol and the trimethyl carbinol, is preferably the trimethyl carbinol.
Polymer latex used can be one or more of polybutadiene latex, styrene-butadiene latex, carboxylic styrene butadiene latex, polychloroprene latex, ethylene propylene rubber latex, isoprene rubber latex, nitrile rubber and acrylate glue Ruzhong, and wherein the concentration of latex is 40wt%～60wt%.
In emulsified bitumen of the present invention, preferably add amphoteric ion type emulsifying agent and/or nonionic emulsifier, take the weight of emulsified bitumen as benchmark, amphoteric ion type emulsifier is 0.1% ~ 0.7%, and nonionic emulsifier consumption is 0.1% ~ 0.7%.
Zwitter-ion emulsifying agent used is one or more in aminocarboxylic acid and aminocarboxylate, can be one or more in N-cocoyl-β-alanine sodium, N-cocoyl-β-alanine, N-lauryl-β-alanine, N-myristyl-β-alanine, N-tallow-β-imido disodium beclomethasone and N-lauryl-β-imido disodium beclomethasone.
Nonionic emulsifying agent used is one or more in fatty alcohol-polyoxyethylene ether and alkylphenol polyoxyethylene.Wherein, the chemical formula of fatty alcohol-polyoxyethylene ether is R-O-(CH
2cH
2o)
nh, wherein, R is saturated or unsaturated C
12~ C
18alkyl, can be straight-chain alkyl, can be also branched alkyl, n=15 ~ 20; Alkylphenol polyoxyethylene can be one or both in polyoxyethylene nonylphenol ether (NPEO), polyoxyethylene octylphenol ether (OPEO).
Pitch used is petroleum pitch, comprises one or more in straight-run pitch, oxidized bitumen, solvent deoiling pitch, and its penetration degree is 60～120 1/10mm.
In emulsified bitumen used, can also contain defoamer, take the weight of emulsified bitumen as benchmark, the content of defoamer is 0.05%～0.1%.Defoamer used is one or more in silicone emulsion, the fatty acid ester compounded thing of higher alcohols, polyoxyethylene polyoxypropylene tetramethylolmethane ether, polyoxyethylene polyoxy propyl alcohol amidogen ether and polypropylene glycerol aether etc.
The preparation method of emulsified bitumen of the present invention is as follows: by asphalt heating to 110 ℃～165 ℃, obtain material I; Water reducer and alcohol are mixed, then under whipped state, thickening material is joined in the mixture of water reducer and alcohol, make mashed prod, obtain material II; Cationic emulsifier, anionic emulsifier and stablizer is jointly water-soluble, and being prepared into soap lye and keeping temperature is 40 ℃～65 ℃, obtains material III; Using load weighted polymer latex as material IV; Then material I, material II, material III and material IV are transported to respectively in colloidal mill, after colloidal mill is dispersed, become emulsion oil-in-water, while emulsion temperature being dropped to 60 ℃～70 ℃ with interchanger, emit system, obtain emulsified bitumen.
Wherein, preferably in material II, add defoamer, take the weight of emulsified bitumen as benchmark, the content of defoamer is 0.05%～0.1%, and defoamer need add before thickening material; Preferably add amphoteric ion type emulsifying agent and/or nonionic emulsifier at material III, take the weight of emulsified bitumen as benchmark, amphoteric ion type emulsifier is 0.1% ~ 0.7%, and nonionic emulsifier consumption is 0.1% ~ 0.7%.
In cement asphalt mortar of the present invention, cement used is silicate cement, strength grade is 42.5,42.5R, 52.5,52.5R, 62.5 and 62.5R in any one.
In cement asphalt mortar of the present invention, fine sand used can be one or more the mixture in river sand, extra large sand, mountain sand, preferably mountain sand; Fine sand used will, through washing, wash away earth wherein, after fully drying, mixes.Wherein, the fine sand proportion of different-grain diameter, take the weight of fine sand as benchmark:
Particle diameter 0.35～0.5mm 34%～40%,
Particle diameter 0.25～0.35mm 22%～24%,
Particle diameter < 0.25mm 38%～42%.
In cement asphalt mortar of the present invention, swelling agent used is calcium sulphoaluminate class swelling agent.
In cement asphalt mortar of the present invention, aluminium powder used is flakey.
The preparation method of cement asphalt mortar of the present invention, comprises following content: load weighted water and emulsified bitumen are added in stirring tank, stir as liquid material; Then cement, fine sand, swelling agent and aluminium powder are added in above-mentioned liquid material, stir, obtain cement asphalt mortar.
Cement asphalt mortar tool of the present invention has the following advantages:
1, in cement asphalt mortar of the present invention, the polymer latex containing in emulsified bitumen and water reducer, in the time preparing cement asphalt mortar, strengthen the cohesiveness with cement, fine sand, make fine sand difficult drop-off, make again CA mortar there is certain snappiness simultaneously, the vibration energy producing can absorb better bullet train and travel time, play shock absorption, make driving more steady, comfortable, improve the temperature sensitivity of CA mortar simultaneously, widened the use temperature scope of CA mortar, improved the weathering resistance of mortar.
2, in cement asphalt mortar of the present invention, in advance water reducer, defoamer, polymer latex are added in emulsified bitumen, when with the mix such as cement, fine sand, easily make them in mortar, be evenly distributed, fully contact with cement, fine sand etc., diminishing and defoaming effect are obvious, improve the workability of emulsified bitumen and cement and fine sand, improve the mobility of CA mortar, make CA mortar injection full, after moulding stressed evenly, solved that to add at the construction field (site) the metering existing inaccurate and stir uneven problem simultaneously.
3, in cement asphalt mortar of the present invention, the synergy of water reducer and alcohols, has further improved the frost resistance of CA mortar, guarantees that bursting by freezing or the loose phenomenon of freeze thawing do not occur winter mortar.
4, cement asphalt mortar preparation method of the present invention, has simplified execute-in-place step, enhances productivity.
Embodiment
Describe technical scheme of the present invention in detail below in conjunction with embodiment, but the invention is not restricted to following examples.
Embodiment 1
Getting penetration degree is 108(1/10mm) LIAOHE CRUDE straight-run pitch 6470g, be heated to 115 ℃ for subsequent use, obtain material I; At normal temperatures, by calcium lignin sulphonate 10 g, methyl-silicone oil (303-20) 7g, Virahol 80 g after mixing, slowly add carboxymethyl cellulose 1 g under whipped state, stir and make mashed prod, obtain material II; Cationic emulsifier palmityl trimethyl ammonium chloride 30g, anionic emulsifier fat (18) alcohol polyoxyethylene (3) ether sodium sulfate 30 g, amphoteric ion type emulsifying agent N-cocoyl-β-alanine sodium 10 g, nonionic emulsifier oleic alcohol polyoxyethylene (20) ether 10g, calcium chloride 5 g, jointly be dissolved in 3247g water, keep temperature 45 C, obtain material III; Accurately take styrene-butadiene latex that 100 g concentration are 60% as material IV; Then material I, material II, material III, material IV are transported to respectively in colloidal mill, after colloidal mill is dispersed, become emulsion oil-in-water, while emulsion temperature being dropped to 60 ℃～70 ℃ with interchanger, go out system, obtain the present invention's emulsified bitumen used.Concrete proportioning is in table 1, and emulsified bitumen character is in table 2.
Embodiment 2
Getting penetration degree is 98(1/10mm) Oman crude oil solvent deoiling pitch 6000g of Refinery of Maoming Petrochemical Corporation, be heated to 125 ℃ for subsequent use, obtain material I; At normal temperatures, by naphthalene sulfonic acidformaldehyde condensation product 40 g, polyoxyethylene oxypropylene glycerine (GPE30) 5g, ethanol 60g, trimethyl carbinol 100g, after mixing, under whipped state, slowly add carboxyethyl cellulose 5 g, stir and make mashed prod, obtain material II; Cationic emulsifier octadecyl trimethyl ammonium chloride 125g, anionic emulsifier fat (18) amine polyoxyethylene (4) sodium sulfate 55g, amphoteric ion type emulsifying agent N-tallow-β-imido disodium beclomethasone 69 g, nonionic emulsifier octyl phenol polyoxy ethene (20) ether 50g, ammonium chloride 15 g, are dissolved in the water of 3276g jointly, stir, be prepared into soap lye and keep 65 ℃ of temperature, obtain material III; Accurately take polychloroprene latex that 200 g concentration are 55% as material IV; Then material I, material II, material III, material IV are transported to respectively in colloidal mill, after colloidal mill is dispersed, become emulsion oil-in-water, while emulsion temperature being dropped to 60 ℃～70 ℃ with interchanger, go out system, obtain the present invention's emulsified bitumen used.Concrete proportioning is in table 1, and emulsified bitumen character is in table 2.
Embodiment 3
Getting penetration degree is 62(1/10mm) the Kuwait Crude Oil oxidized bitumen 5900g of Qilu Petrochemical Company, be heated to 155 ℃, obtain material I; At normal temperatures, by sulfonated melamine compound condenses 25 g, higher alcohols fatty acid ester (C18, concentration 30wt%) 9g, propyl alcohol 320g, after fully mixing, under whipped state, slowly add Natvosol 3 g, stir and make mashed prod, obtain material II; Get cationic emulsifier Trimethyllaurylammonium bromide 55g, anionic emulsifier sodium lauryl sulphate 90 g, amphoteric ion type emulsifying agent N-lauryl-β-alanine 30g, nonionic emulsifier lauryl alcohol polyethylene glycol oxide (20) ether 30g, magnesium chloride 10g, is dissolved in the water of 55 ℃ of 3278g jointly, stirs, be prepared into soap lye and keep 55 ℃ of temperature, obtain material III; Accurately take nitrile rubber that 250 g concentration are 50% as material IV; Then material I, material II, material III, material IV are transported to respectively in colloidal mill, after colloidal mill is dispersed, become emulsion oil-in-water, while emulsion temperature being dropped to 60 ℃～70 ℃ with interchanger, go out system, obtain the present invention's emulsified bitumen used.Concrete proportioning is in table 1, and emulsified bitumen character is in table 2.
Embodiment 4
Getting penetration degree is 118(1/10mm) straight-run pitch 5520g, be heated to 162 ℃, obtain material I; At normal temperatures, by thionamic acid sodium 48g, polypropylene glycerol aether 10g, trimethyl carbinol 345g, fully mixes, and then under whipped state, slowly adds hydroxypropylcellulose 2 g, stirs formation mashed prod, obtains material II; Get cationic emulsifier stearyl dimethyl benzyl ammonium chloride 90 g, anionic emulsifier fat (20) alcohol polyoxyethylene (4) ether sodium sulfate 125g, amphoteric ion type emulsifying agent N-lauryl-β-imido disodium beclomethasone 50g, nonionic emulsifier Nonyl pheno (20) ether 69g, bariumchloride 7 g, jointly be dissolved in 3334g water, being prepared into soap lye and keeping temperature is 60 ℃, obtains material III; Accurately take polybutadiene latex that 400 g concentration are 40% as material IV; Then material I, material II, material III, material IV are transported to respectively in colloidal mill, after colloidal mill is dispersed, become emulsion oil-in-water, while emulsion temperature being dropped to 60 ℃～70 ℃ with interchanger, go out system, obtain the present invention's emulsified bitumen used.Concrete proportioning is in table 1, and emulsified bitumen character is in table 2.
Embodiment 5
Getting penetration degree is 77(1/10mm) LIAOHE CRUDE straight-run pitch 5700g, be heated to 137 ℃, obtain material I; At normal temperatures, by calcium lignin sulphonate 30 g, methyl-silicone oil (303-20) 6g, Virahol 240 g after mixing, slowly add carboxymethyl cellulose 4 g under whipped state, stir and make mashed prod, obtain material II; Get cationic emulsifier palmityl trimethyl ammonium chloride 150g, anionic emulsifier fat (18) alcohol polyoxyethylene (3) ether sodium sulfate 150 g, calcium chloride 12 g, jointly be dissolved in the water that 3398g is not less than 50 ℃, stir, be prepared into soap lye and keep temperature 50 C, obtain material III; Accurately take ethylene propylene rubber latex that 310 g concentration are 46% as material IV; Then material I, material II, material III, material IV are transported to respectively in colloidal mill, after colloidal mill is dispersed, become emulsion oil-in-water, while emulsion temperature being dropped to 60 ℃～70 ℃ with interchanger, go out system, obtain the present invention's emulsified bitumen used.Concrete proportioning is in table 1, and emulsified bitumen character is in table 2.
Comparative example 1
Getting penetration degree is 108(1/10mm) LIAOHE CRUDE straight-run pitch 6470g, be heated to 115 ℃ for subsequent use, obtain material I; Get Virahol 80 g, under whipped state, slowly add carboxymethyl cellulose 1 g, stir and make mashed prod, obtain material II; Cationic emulsifier palmityl trimethyl ammonium chloride 30g, anionic emulsifier fat (18) alcohol polyoxyethylene (3) ether sodium sulfate 30 g, amphoteric ion type emulsifying agent N-cocoyl-β-alanine sodium 10 g, nonionic emulsifier oleic alcohol polyoxyethylene (20) ether 10g, calcium chloride 5 g, jointly be dissolved in 3264g water, keep temperature 45 C, obtain material III; Accurately take styrene-butadiene latex that 100 g concentration are 60% as material IV; Then material I, material II, material III, material IV are transported to respectively in colloidal mill, after colloidal mill is dispersed, become emulsion oil-in-water, while emulsion temperature being dropped to 60 ℃～70 ℃ with interchanger, go out system, obtain emulsified bitumen.Concrete proportioning is in table 1, and emulsified bitumen character is in table 2.
Comparative example 2
Getting penetration degree is 98(1/10mm) Oman crude oil solvent deoiling pitch 6000g of Refinery of Maoming Petrochemical Corporation, be heated to 125 ℃ for subsequent use, obtain material I; Get ethanol 60g, trimethyl carbinol 100g after mixing, slowly adds carboxyethyl cellulose 5 g under whipped state, stirs and makes mashed prod, obtains material II; Cationic emulsifier octadecyl trimethyl ammonium chloride 125g, anionic emulsifier fat (18) amine polyoxyethylene (4) sodium sulfate 55g, amphoteric ion type emulsifying agent N-tallow-β-imido disodium beclomethasone 69 g, nonionic emulsifier octyl phenol polyoxy ethene (20) ether 50g, ammonium chloride 15 g, are dissolved in the water of 3521g jointly, stir, be prepared into soap lye and keep 65 ℃ of temperature, obtain material III; Then material I, material II, material III are transported to respectively in colloidal mill, after colloidal mill is dispersed, become emulsion oil-in-water, while emulsion temperature being dropped to 60 ℃～70 ℃ with interchanger, go out system, obtain emulsified bitumen.Concrete proportioning is in table 1, and emulsified bitumen character is in table 2.
Above-described embodiment 1～embodiment 5 prepares mortar method: at normal temperatures load weighted water and emulsified bitumen are added in stirring tank respectively, stir as liquid material; Then, stir on one side, successively cement, fine sand, swelling agent, aluminium powder are added in above-mentioned liquid material on one side, after whole siccatives add, stir.Embodiment 1～embodiment 5 prepares the material mixture ratio of mortar in table 3, records the character of mortar in table 4.Respectively the emulsified bitumen of comparative example 1 and comparative example 2 is pressed to the preparation method of above-mentioned mortar, respectively according to the consumption of water reducer and defoamer in embodiment 1 and embodiment 2, in the time preparing mortar, add in mortar at scene, make cement asphalt mortar, material mixture ratio, in table 3, records the character of mortar in table 4.The present invention's cement used is the conch board cement that Anhui Conch Cement stock company produces.
Table 1 emulsified bitumen proportioning.
| Raw material consumption | Embodiment 1 | Embodiment 2 | Embodiment 3 | Embodiment 4 | Embodiment 5 | Comparative example 1 | Comparative example 2 |
| Basic asphalt type | Straight-run pitch | Solvent deoiling pitch | Oxidized bitumen | Straight-run pitch | Straight-run pitch | Straight-run pitch | Solvent deoiling pitch |
| Penetration degree, 1/10mm | 108 | 98 | 62 | 118 | 77 | 108 | 98 |
| Asphalt content/g | 6470 | 6000 | 5900 | 5520 | 5700 | 6470 | 6000 |
| Emulsifier/g | ? | ? | ? | ? | ? | ? | ? |
| Positively charged ion | 30 | 125 | 55 | 90 | 150 | 30 | 125 |
| Negatively charged ion | 30 | 55 | 90 | 125 | 150 | 30 | 55 |
| Zwitter-ion | 10 | 69 | 30 | 50 | - | 10 | 69 |
| Nonionic | 10 | 50 | 30 | 69 | - | 10 | 50 |
| Stabilizing agent dosage/g | 5 | 15 | 10 | 7 | 12 | 5 | 15 |
| Water reducer consumption/g | 10 | 40 | 25 | 48 | 30 | - | - |
| Defoamer consumption/g | 7 | 5 | 9 | 10 | 6 | - | - |
| Alcohol consumption/g | 80 | 160 | 320 | 345 | 240 | 80 | 160 |
| Thickening material consumption/g | 1 | 5 | 3 | 2 | 4 | 1 | 5 |
| Dosage of latex/g | 100 | 200 | 250 | 400 | 310 | 100 | ? |
| Water consumption/g | 3247 | 3276 | 3278 | 3334 | 3398 | 3264 | 3521 |
Table 2 emulsified bitumen character.
| Project | Embodiment 1 | Embodiment 2 | Embodiment 3 | Embodiment 4 | Embodiment 5 | Comparative example 1 | Comparative example 2 | Index request | Detection method |
| Residual content/% on sieve | 0.01 | 0.01 | 0.02 | 0.01 | 0.02 | 0.95 | 0.84 | ≤0.1 | JTJ T0652 |
| Viscosity Engler | 13.9. | 10 | 12.8 | 9.1 | 11.4 | 13.6 | 9.8 | 3～15 | JTJ T0622 |
| Stability in storage/% | ? | ? | ? | ? | ? | ? | ? | ? | ? |
| 1 day | 0.1 | 0.3 | 0.5 | 0.7 | 0.2 | 3.7 | 1.5 | ≤1 | JTJ T0655 |
| 5 days | 1 | 2.7 | 2.4 | 1.3 | 2.1 | 7.4 | 8 | ≤5 | JTJ T0655 |
| Low-temperature storage experiment (5 ℃) | Without coarse grain without caking | Without coarse grain without caking | Without coarse grain without caking | Without coarse grain without caking | Without coarse grain without caking | Without coarse grain without caking | Without coarse grain without caking | Without coarse grain without caking | JTJ T0656 |
| Low-temperature storage experiment (25 ℃) | Without coarse grain without caking | Without coarse grain without caking | Without coarse grain without caking | Without coarse grain without caking | Without coarse grain without caking | Seedy | Seedy | ? | ? |
| Cement mixing | 0.3 | 0.8 | 0.5 | 0.4 | 0.2 | 3.8 | 3.4 | ≤2.0 | JTJT0657 |
| Evaporation of residual properties | ? | ? | ? | ? | ? | ? | ? | ? | ? |
| Penetration degree/0.1mm | 110 | 99 | 65 | 119 | 79 | 110 | 98 | 60～120 | GB/T4509 |
| Ductility (25 ℃)/cm | ＞150 | ＞150 | 110 | ＞150 | ＞150 | ＞150 | ＞150 | ≥100 | GB/T4508 |
| Ductility (5 ℃)/cm | 80 | 78 | 99 | 110 | 102 | 79 | 45 | ≥20 | GB/T4508 |
| Solubleness/% | 99.8 | 99.8 | 99.9 | 99.6 | 99.7 | 99.8 | 99.8 | ≥99 | JTJ T0607 |
| Emulsified bitumen state | Fine and smooth | Fine and smooth | Fine and smooth | Fine and smooth | Fine and smooth | Surface flotation white latex | There is skinning | ? | ? |
From table 2, participate in using water reducer and defoamer as emulsifier component in advance the preparation of emulsified bitumen, have significantly and improve for residual content, stability in storage, cement mixing on the sieve of emulsified bitumen, especially more meaningful to improving cement mixing, be conducive to mix, perfusion and the moulding of mortar.Meanwhile, due to the synergy of alcohols, emulsified bitumen is stored at-25 ℃ and breakdown of emulsion not, without coarse grain without caking.Owing to having added polymer latex, make evaporation residue 5 ℃ of ductilities be improved significantly.Owing to also having added water reducer in adding latex, make the latex modified emulsified bitumen exquisiteness of preparation, there is not skinning and polymer latex hydro-planing.
Table 3 cement asphalt mortar proportioning.
| Raw material consumption | Embodiment 1 | Embodiment 2 | Embodiment 3 | Embodiment 4 | Embodiment 5 | Comparative example 1 | Comparative example 2 |
| Emulsified bitumen/kg | 180 | 248 | 201 | 204 | 215 | 180 | 248 |
| Strength of cement grade | 42.5 | 52.5 | 62.5R | 52.5R | 42.5R | 42.5 | 52.5 |
| Cement consumption/kg | 240 | 220 | 230 | 235 | 225 | 240 | 220 |
| Fine sand type | River sand | Sea sand | Mountain sand | Mountain sand, river sand | Mountain sand, extra large sand | River sand | Sea sand |
| Fine sand consumption/kg | 470 | 450 | 460 | 455 | 465 | 470 | 450 |
| Swelling agent/kg | 20 | 22 | 24 | 26 | 25 | 20 | 22 |
| External adding water/kg | 90 | 60 | 85 | 80 | 70 | 90 | 60 |
| Water reducer/g | - | - | - | - | - | 180 | 992 |
| Defoamer/g | - | - | - | - | - | 126 | 124 |
| Aluminium powder/g | 25 | 15 | 20 | 18 | 23 | 25 | 15 |
Table 4 cement asphalt mortar character.
| Project | Embodiment 1 | Embodiment 2 | Embodiment 3 | Embodiment 4 | Embodiment 5 | Comparative example 1 | Comparative example 2 | CA mortar index request |
| Mortar state | Without air pocket, homogeneous full, not bleeding | Without air pocket, homogeneous full, not bleeding | Without air pocket, homogeneous full, not bleeding | Without air pocket, homogeneous full, not bleeding | Without air pocket, homogeneous full, not bleeding | There is air pocket, quality inequality, bleeding is obvious | There is air pocket, quality inequality, a small amount of bleeding | ? |
| Degree of mobilization/s | 23 | 18 | 19 | 21 | 20 | 29 | 27 | 16～26 |
| Operable time/min | 92 | 81 | 58 | 72 | 68 | 28 | 36 | ≥30 |
| Resolution/% | 0.1 | 0.2 | 0.4 | 0.3 | 0.4 | 2.2 | 2.0 | ≤3 |
| Air content/% | 10.2 | 9.5 | 9.9 | 11.2 | 9.2 | 14 | 12.7 | 8～12 |
| Bleeding rate/% | 0 | 0 | 0 | 0 | 0 | 4 | 2 | 0 |
| Rate of expansion/% | 1.6 | 1.7 | 1.8 | 2.0 | 1.9 | 0.7 | 0.9 | 1～3 |
| Ultimate compression strength/MPa | ? | ? | ? | ? | ? | ? | ? | ? |
| 1 day | 0.19 | 0.21 | 0.26 | 0.25 | 0.22 | 0.09 | 0.10 | ≥0.1 |
| 7 days | 1.46 | 1.72 | 1.92 | 1.85 | 1.81 | 0.52 | 0.98 | ≥0.7 |
| 28 days | 1.98 | 2.07 | 2.26 | 2.19 | 2.10 | 1.67 | 1.72 | 1.8～2.5 |
| Young's modulus/MPa | 198 | 255 | 262 | 243 | 251 | 90 | 97 | 100～300 |
| Frost resistance test (28 days) | ? | ? | ? | ? | ? | ? | ? | ? |
| Mass loss rate/% | 2.3 | 2.8 | 1.2 | 2.6 | 0.8 | 4.2 | 4.9 | ≤5 |
| Relative resilient modulus/MPa | 93 | 99 | 94 | 95 | 98 | 71 | 67 | ≥60 |
| Atmospheric exposure test | ? | ? | ? | ? | ? | ? | ? | ? |
| Outward appearance | Without abnormal | Without abnormal | Without abnormal | Without abnormal | Without abnormal | Without abnormal | Peeling, the grains of sand come off | Without abnormal |
| Folding strength/% relatively | 103 | 102 | 104 | 108 | 106 | 98 | 74 | ≥100 |
From table 4, after the siccative mixs such as the emulsified bitumen of embodiment 1～5 and cement, fine sand, swelling agent, operable time extends, and is conducive to mortar mix, perfusion and moulding.Effectively improve bleeding rate, be conducive to guarantee the hydration reaction of cement.Make the indexs such as air content, degree of mobilization, resolution, ultimate compression strength meet high-speed rail construction code requirement, frost resistance and weathering resistance are also improved.
Claims (22)
1. a cement asphalt mortar, is characterized in that: comprise following component with the weight percent meter of cement asphalt mortar:
Emulsified bitumen 18%～24.8%,
Cement 22%～24%,
Fine sand 45%～47%,
Swelling agent 2%～2.6%,
Aluminium powder 0.0015%～0.0025%,
Water 6%～9%.
2. according to cement asphalt mortar claimed in claim 1, it is characterized in that: emulsified bitumen comprises following component by weight percentage:
Pitch 55%～65%,
Cationic emulsifier 0.3%～1.5%,
Anionic emulsifier 0.3%～1.5%,
Stablizer 0.05%～0.15%,
Thickening material 0.01%～0.05%,
Water reducer 0.1%～0.5%,
Alcohol 0.8%～3.5%,
Polymer latex 1%～4%,
Water 30%～35%.
3. according to cement asphalt mortar claimed in claim 2, it is characterized in that: pitch used is one or more in straight-run pitch, oxidized bitumen and solvent deoiling pitch, and its penetration degree is 60～120 1/10mm.
4. according to cement asphalt mortar claimed in claim 2, it is characterized in that: cationic emulsifier used is quaternary ammonium salt, and quaternary ammonium salt is selected from one or more in octadecyl trimethyl ammonium chloride, palmityl trimethyl ammonium chloride, Dodecyl trimethyl ammonium chloride, stearyl dimethyl benzyl ammonium chloride, cetalkonium chloride, dodecyl benzyl dimethyl ammonium chloride, Cetyltrimethylammonium bromide, cetyl trimethylammonium bromide and Trimethyllaurylammonium bromide.
5. according to cement asphalt mortar claimed in claim 2, it is characterized in that: anionic emulsifier used is sulfuric ester salt, and sulfuric ester salt is selected from one or more in sodium alkyl sulfate, polyoxyethylenated alcohol sodium sulfate; Wherein the chemical formula of sodium alkyl sulfate is C
nh
(2n+1)-OSO
3na, n=12,14 or 18; The chemical formula of polyoxyethylenated alcohol sodium sulfate is: RO (CH
2cH
2o)
n-SO
3na, wherein R is C
12～C
15alkyl, n=2 or 3.
6. according to cement asphalt mortar claimed in claim 2, it is characterized in that: stablizer used is one or more in calcium chloride, magnesium chloride, bariumchloride and ammonium chloride.
7. according to cement asphalt mortar claimed in claim 2, it is characterized in that: thickening material used is one or more in Walocel MT 20.000PV, carboxymethyl cellulose, Natvosol, carboxyethyl cellulose and hydroxypropylcellulose.
8. according to cement asphalt mortar claimed in claim 2, it is characterized in that: water reducer used is that one or more in sulfonated lignin, naphthalene sulfonic acidformaldehyde condensation product, sulfonated melamine compound condenses, sulfamate are composite.
9. according to cement asphalt mortar claimed in claim 2, it is characterized in that: polymer latex used is one or more of polybutadiene latex, styrene-butadiene latex, carboxylic styrene butadiene latex, polychloroprene latex, ethylene propylene rubber latex, isoprene rubber latex, nitrile rubber and acrylate glue Ruzhong, and wherein the concentration of latex is 40wt%～60wt%.
10. according to cement asphalt mortar claimed in claim 2, it is characterized in that: alcohol used is one or more in ethanol, propyl alcohol, Virahol and the trimethyl carbinol.
11. according to cement asphalt mortar claimed in claim 2, it is characterized in that: in emulsified bitumen, add amphoteric ion type emulsifying agent and/or nonionic emulsifier, take the weight of emulsified bitumen as benchmark, amphoteric ion type emulsifier is 0.1% ~ 0.7%, and nonionic emulsifier consumption is 0.1% ~ 0.7%.
12. according to cement asphalt mortar claimed in claim 2, it is characterized in that: zwitter-ion emulsifying agent used is one or more in aminocarboxylic acid and aminocarboxylate, aminocarboxylic acid and aminocarboxylate are selected from one or more in N-cocoyl-β-alanine sodium, N-cocoyl-β-alanine, N-lauryl-β-alanine, N-myristyl-β-alanine, N-tallow-β-imido disodium beclomethasone and N-lauryl-β-imido disodium beclomethasone.
13. according to cement asphalt mortar claimed in claim 2, it is characterized in that: nonionic emulsifying agent used is one or more in fatty alcohol-polyoxyethylene ether and alkylphenol polyoxyethylene; Wherein the chemical formula of fatty alcohol-polyoxyethylene ether is R-O-(CH
2cH
2o)
nh, wherein, R is saturated or unsaturated C
12~ C
18alkyl, n=15 ~ 20; Alkylphenol polyoxyethylene is one or both in polyoxyethylene nonylphenol ether, polyoxyethylene octylphenol ether.
14. according to cement asphalt mortar claimed in claim 2, it is characterized in that: in emulsified bitumen, contain defoamer, take the weight of emulsified bitumen as benchmark, the content of defoamer is 0.05%～0.1%; Defoamer used is one or more in silicone emulsion, the fatty acid ester compounded thing of higher alcohols, polyoxyethylene polyoxypropylene tetramethylolmethane ether, polyoxyethylene polyoxy propyl alcohol amidogen ether and polypropylene glycerol aether.
15. according to cement asphalt mortar claimed in claim 2, it is characterized in that: the preparation method of emulsified bitumen comprises following content: by asphalt heating to 110 ℃～165 ℃, obtain material I; Water reducer and alcohol are mixed, then under whipped state, thickening material is joined in the mixture of water reducer and alcohol, make mashed prod, obtain material II; Cationic emulsifier, anionic emulsifier and stablizer is jointly water-soluble, and being prepared into soap lye and keeping temperature is 40 ℃～65 ℃, obtains material III; Using load weighted polymer latex as material IV; Then material I, material II, material III and material IV are transported to respectively in colloidal mill, after colloidal mill is dispersed, become emulsion oil-in-water, while emulsion temperature being dropped to 60 ℃～70 ℃ with interchanger, emit system, obtain emulsified bitumen.
16. according to the cement asphalt mortar described in claim 15, it is characterized in that: in material II, add defoamer, take the weight of emulsified bitumen as benchmark, the content of defoamer is 0.05%～0.1%, and defoamer added before thickening material.
17. according to the cement asphalt mortar described in claim 15, it is characterized in that: add amphoteric ion type emulsifying agent and/or nonionic emulsifier at material III, take the weight of emulsified bitumen as benchmark, amphoteric ion type emulsifier is 0.1% ~ 0.7%, and nonionic emulsifier consumption is 0.1% ~ 0.7%.
18. according to cement asphalt mortar claimed in claim 1, it is characterized in that: cement used is silicate cement, strength grade is 42.5,42.5R, 52.5,52.5R, 62.5 or 62.5R in any one.
19. according to cement asphalt mortar claimed in claim 1, it is characterized in that: fine sand used comprises following component by weight percentage:
Particle diameter 0.35～0.50mm 34%～39%,
Particle diameter 0.25～0.35mm 23%～25%,
Particle diameter < 0.25mm 38%～41%.
20. according to cement asphalt mortar claimed in claim 1, it is characterized in that: swelling agent used is calcium sulphoaluminate class swelling agent.
21. according to cement asphalt mortar claimed in claim 1, it is characterized in that: aluminium powder used is flakey.
The preparation method of the arbitrary described cement asphalt mortar of 22. claims 1 ~ 21, comprises following content: load weighted water and emulsified bitumen are added in stirring tank, stir as liquid material; Then cement, fine sand, swelling agent and aluminium powder are added in above-mentioned liquid material, stir, obtain cement asphalt mortar.
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104844089A (en) * | 2015-04-30 | 2015-08-19 | 安徽鑫润新型材料有限公司 | Adhesive mortar and preparation method thereof |
| CN108978594A (en) * | 2018-09-03 | 2018-12-11 | 中国葛洲坝集团第二工程有限公司 | Concrete face rockfill dam separation layer construction method |
| KR101954174B1 (en) * | 2018-02-06 | 2019-05-23 | 한국석유공업 주식회사 | Warm asphalt composition for mixing inorganic-based modifier, and asphalt cement mortar having the same |
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Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101508848A (en) * | 2009-03-18 | 2009-08-19 | 广州路翔股份有限公司 | Modified emulsified asphalt, production method and CA mortar comprising the emulsified asphalt |
| CN101817984A (en) * | 2010-04-16 | 2010-09-01 | 江苏华宇铁路新材料有限公司 | Emulsified asphalt and preparation method thereof |
| CN101948623A (en) * | 2010-09-14 | 2011-01-19 | 江苏省苏安能节能建材科技有限公司 | Rubber powder modified emulsified asphalt and preparation method thereof and CA mortar prepared by emulsified asphalt |
| CN102010163A (en) * | 2010-10-25 | 2011-04-13 | 中铁八局集团第四工程有限公司 | CA (cement and asphalt) mortar for CRTS II slab ballastless tracks |
| CN102140252A (en) * | 2010-02-02 | 2011-08-03 | 新疆金源石油化工有限公司 | Process for preparing cationic emulsified asphalt by petroleum sulfonate acid residue |
| CN102234435A (en) * | 2010-04-23 | 2011-11-09 | 中国石油化工股份有限公司 | Frost resistant emulsified bitumen prepared from composite emulsifier, and preparation method thereof |
| CN102558885A (en) * | 2011-12-30 | 2012-07-11 | 上海龙孚材料技术有限公司 | Emulsified asphalt used for high-speed railway, mortar containing emulsified asphalt and preparation method of mortar |
| CN102675889A (en) * | 2012-05-22 | 2012-09-19 | 山西明科斯科技有限公司 | Polymer modified emulsified asphalt composition and preparation method thereof |
| CN103058588A (en) * | 2011-10-18 | 2013-04-24 | 中国石油化工股份有限公司 | Anti-freezing cement asphalt mortar and preparation method thereof |
-
2012
- 2012-11-07 CN CN201210440122.3A patent/CN103803893B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101508848A (en) * | 2009-03-18 | 2009-08-19 | 广州路翔股份有限公司 | Modified emulsified asphalt, production method and CA mortar comprising the emulsified asphalt |
| CN102140252A (en) * | 2010-02-02 | 2011-08-03 | 新疆金源石油化工有限公司 | Process for preparing cationic emulsified asphalt by petroleum sulfonate acid residue |
| CN101817984A (en) * | 2010-04-16 | 2010-09-01 | 江苏华宇铁路新材料有限公司 | Emulsified asphalt and preparation method thereof |
| CN102234435A (en) * | 2010-04-23 | 2011-11-09 | 中国石油化工股份有限公司 | Frost resistant emulsified bitumen prepared from composite emulsifier, and preparation method thereof |
| CN101948623A (en) * | 2010-09-14 | 2011-01-19 | 江苏省苏安能节能建材科技有限公司 | Rubber powder modified emulsified asphalt and preparation method thereof and CA mortar prepared by emulsified asphalt |
| CN102010163A (en) * | 2010-10-25 | 2011-04-13 | 中铁八局集团第四工程有限公司 | CA (cement and asphalt) mortar for CRTS II slab ballastless tracks |
| CN103058588A (en) * | 2011-10-18 | 2013-04-24 | 中国石油化工股份有限公司 | Anti-freezing cement asphalt mortar and preparation method thereof |
| CN102558885A (en) * | 2011-12-30 | 2012-07-11 | 上海龙孚材料技术有限公司 | Emulsified asphalt used for high-speed railway, mortar containing emulsified asphalt and preparation method of mortar |
| CN102675889A (en) * | 2012-05-22 | 2012-09-19 | 山西明科斯科技有限公司 | Polymer modified emulsified asphalt composition and preparation method thereof |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104844089A (en) * | 2015-04-30 | 2015-08-19 | 安徽鑫润新型材料有限公司 | Adhesive mortar and preparation method thereof |
| KR101954174B1 (en) * | 2018-02-06 | 2019-05-23 | 한국석유공업 주식회사 | Warm asphalt composition for mixing inorganic-based modifier, and asphalt cement mortar having the same |
| CN108978594A (en) * | 2018-09-03 | 2018-12-11 | 中国葛洲坝集团第二工程有限公司 | Concrete face rockfill dam separation layer construction method |
| CN108978594B (en) * | 2018-09-03 | 2020-08-04 | 中国葛洲坝集团第二工程有限公司 | Concrete face rockfill dam isolation layer construction method |
| CN110342879A (en) * | 2019-07-18 | 2019-10-18 | 深圳工建科技有限公司 | A kind of waterproof mortar and preparation method thereof |
| CN112759943A (en) * | 2021-01-22 | 2021-05-07 | 熊彪 | Emulsified asphalt and preparation method thereof |
| CN113510856A (en) * | 2021-04-23 | 2021-10-19 | 广州机觉云物联科技有限公司 | Mobile micro mortar station batching method and system thereof |
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