CN109608094A - Bituminous concrete - Google Patents
Bituminous concrete Download PDFInfo
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- CN109608094A CN109608094A CN201910050505.1A CN201910050505A CN109608094A CN 109608094 A CN109608094 A CN 109608094A CN 201910050505 A CN201910050505 A CN 201910050505A CN 109608094 A CN109608094 A CN 109608094A
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- bituminous concrete
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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
- C04B2201/00—Mortars, concrete or artificial stone characterised by specific physical values
- C04B2201/50—Mortars, concrete or artificial stone characterised by specific physical values for the mechanical strength
Abstract
The present invention relates to the field of building materials to provide a kind of bituminous concrete, the component including following mass fraction: 22.5-30 parts of pitch aiming at the problem that bituminous concrete is easy stirring unevenly and influences the intensity of bituminous concrete；6-8 parts of miberal powder；106.5-142 parts of aggregate；7.5-10 parts of Epocryl；4.5-6 parts of rubber powder；1.5-2 parts of ethanol amine.By the way that Epocryl is added, be conducive to improve the viscosity of bituminous concrete, so that miberal powder and aggregate are easier to be wrapped in concrete slurry, to be conducive to miberal powder and aggregate is better dispersed in bituminous concrete, so that the density of bituminous concrete is more uniform, to be conducive to improve the intensity of bituminous concrete.
Description
Technical field
The present invention relates to the field of building materials, more specifically, it relates to a kind of bituminous concrete.
Background technique
Bituminous concrete is the mineral aggregate that artificial selection has certain gradation, such as rubble or grating gravel, aggregate chips or sand, miberal powder
Deng with a certain proportion of bitumen for road use material, the mixture made of mixing under the conditions of strict control, bituminous concrete is mainly answered
For road surface.
But since the density of mineral aggregates different in bituminous concrete is inconsistent, so that stirring of the mineral aggregate in bituminous concrete
During mixing, there is sinkage in the big mineral aggregate of density, so that bituminous concrete is easy to appear segregation phenomenon, so that
Mineral aggregate is difficult to be dispersed in bituminous concrete, so that the density unevenness of bituminous concrete, is easy to bituminous concrete
Intensity be affected, therefore, still there is improved space.
Summary of the invention
In view of the deficiencies of the prior art, the present invention intends to provide a kind of bituminous concrete, have convenient for having
The advantages of conducive to the intensity for enhancing bituminous concrete.
To achieve the above object, the present invention provides the following technical scheme that
A kind of bituminous concrete, the component including following mass fraction:
22.5-30 parts of pitch；
6-8 parts of miberal powder；
106.5-142 parts of aggregate；
7.5-10 parts of Epocryl；
4.5-6 parts of rubber powder；
1.5-2 parts of ethanol amine.
By adopting the above technical scheme, Epocryl is the matrix resin of adhesive, by the way that propylene oxide is added
Acid ester resin is conducive to the viscosity for improving bituminous concrete, so that miberal powder and aggregate are easier to be wrapped in concrete slurry
It is interior, to be conducive to miberal powder and aggregate is better dispersed in bituminous concrete, so that the density of bituminous concrete is more equal
It is even, to be conducive to improve the intensity of bituminous concrete；Meanwhile being conducive to enhance the viscous of bituminous concrete and miberal powder and aggregate
Relay, so that the case where peel strength of miberal powder and aggregate enhances, and reduction miberal powder and aggregate are easy, thus favorably
Making for bituminous concrete is conducive to extend so that the compression strength of bituminous concrete enhances in the intensity for improving bituminous concrete
Use the service life；By the way that rubber powder is added, be conducive to the toughness and intensity that improve bituminous concrete, so that the deformation of bituminous concrete
Degree increases, so that bituminous concrete is not easy to be damaged when wheel rolled bituminous pavement, it is not easy to crack, be conducive to
Extend the service life of bituminous pavement, meanwhile, reduction production cost is also helped, so that economic benefit improves；By the way that second is added
Hydramine, ethanol amine can be used as the vulcanizing agent and promotor of rubber, to be conducive to improve the performance of rubber powder, so that pitch is mixed
The toughness and enhanced strength of soil are coagulated, when so that wheel rolling bituminous pavement, bituminous concrete is not easily susceptible to cracking, and is conducive to extend
The service life of bituminous pavement；Meanwhile the carboxylic ester group on Epocryl and the amino on ethanol amine are easy to happen instead
It answers, generates amide product, amide product contains amide groups, and amide groups has stronger polarity, and amide groups has stronger hydrogen
Key associative ability, thus amide groups generally has stronger high temperature resistance and stronger stability, to be conducive to improve
The stability and high temperature resistance of bituminous concrete are conducive to extend pitch so that the endurance quality of bituminous concrete improves
The service life on road surface.
The present invention is further arranged to: the miberal powder is limestone.
By adopting the above technical scheme, by using limestone as miberal powder, limestone has good thermal conductivity, firm
Property, be conducive to the intensity for improving bituminous concrete, so that the wearability of bituminous concrete improves, so that it is mixed to be conducive to extend pitch
Coagulate the service life of soil；Meanwhile limestone also has good bonding capacity, so that limestone is easier to stick with bituminous concrete
Knot, is dispersed in bituminous concrete to be conducive to limestone, so that the density of bituminous concrete is more uniform, Jin Eryou
Conducive to the intensity for improving bituminous concrete.
The present invention is further arranged to: the aggregate is fine sand and basaltic mixture.
By adopting the above technical scheme, by using fine sand and basaltic mixture as aggregate, basalt is in more stomatas
Shape, quality is hard, is conducive to the quality for mitigating bituminous concrete, to be conducive to improve the heat insulation of bituminous concrete；Together
When, basalt has good pressure-proof and snap-resistent performance, and wearability is good, to be conducive to improve the wearability of bituminous concrete, makes
Wheel when rolling bituminous pavement, bituminous pavement is not easy to be damaged, to be conducive to extend the service life of bituminous pavement.
The present invention is further arranged to: the basaltic partial size is 5mm-16mm.
By adopting the above technical scheme, it is 5mm-16mm by basaltic partial size, is conducive to basalt and bituminous concrete
It is blended uniformly, so that the density of bituminous concrete is more uniform, and then is conducive to improve the intensity of bituminous concrete.
The present invention is further arranged to: further include the component of following mass fraction:
0.75-1 parts of silane coupling agent.
By adopting the above technical scheme, by the way that silane coupling agent is added, be conducive to enhance the organic component in bituminous concrete
Compatibility between inorganic component, so that the biggish component of density is easier to be uniformly dispersed in bituminous concrete, thus favorably
In the compression strength for improving bituminous concrete, so that the service life of bituminous pavement extends.
The present invention is further arranged to: further include the component of following mass fraction:
1.5-2 parts of SILICA FUME.
By adopting the above technical scheme, by the way that SILICA FUME is added, there is high-intensitive characteristic using SILICA FUME, be conducive to improve
The compression strength of bituminous concrete, so that bituminous pavement is not easily susceptible to cracking, has so that the endurance quality of bituminous pavement improves
Conducive to the service life for extending bituminous pavement；Meanwhile the main component of SILICA FUME is silica, SILICA FUME surface is easy water suction
The stronger silicone hydroxyl of polarity is formed, hydrogen bond easy to form between silicone hydroxyl and the stronger amide groups of polarity is conducive to enhance pitch
The consistency and viscosity of concrete are conducive to so that each component be conducive in bituminous concrete is wrapped in concrete slurry
Each component is uniformly dispersed, so that the density of bituminous concrete is more uniform, and then is conducive to improve the intensity of bituminous concrete, makes
The service life for obtaining bituminous concrete extends.
The present invention is further arranged to: the partial size of the SILICA FUME is 800-1100 mesh.
By adopting the above technical scheme, it is 800-1100 mesh by the partial size of SILICA FUME, it is mixed is conducive to SILICA FUME filled bitumen
The hole for coagulating soil is conducive to the filing effect for improving SILICA FUME, so that being not easy to seep water inside bituminous concrete, to make
The compression strength and durability for obtaining bituminous concrete improve, and are conducive to extend the service life of bituminous concrete.
The present invention is further arranged to: further include the component of following mass fraction:
0.75-1 parts of ultraviolet absorbing agent.
By adopting the above technical scheme, by the way that ultraviolet absorbing agent is added, so that bituminous pavement is not readily susceptible to ultraviolet light
It influences, so that bituminous concrete is less likely to occur physically or chemically to change, so that the endurance quality of bituminous concrete improves,
It is conducive to extend the service life of bituminous concrete.
In conclusion the invention has the following advantages:
1. being conducive to the viscosity for improving bituminous concrete, so that miberal powder and bone by the way that Epocryl is added
Material is easier to be wrapped in concrete slurry, thus be conducive to miberal powder and aggregate is better dispersed in bituminous concrete,
So that the density of bituminous concrete is more uniform, to be conducive to improve the compression strength of bituminous concrete；
2. by the way that Epocryl is added, be conducive to enhance the bonding of bituminous concrete and miberal powder and aggregate
Power, so that the case where peel strength of miberal powder and aggregate enhances, and reduction miberal powder and aggregate are easy, is conducive to improve
The intensity of bituminous concrete, so that the enhanced strength of bituminous concrete, is conducive to extend the service life of bituminous concrete；
3. be conducive to the toughness and intensity that improve bituminous concrete by the way that rubber powder is added, so that bituminous concrete
Deformation degree increases, so that bituminous concrete is not easily susceptible to cracking when wheel rolled bituminous pavement, is conducive to extend asphalt road
The service life in face, meanwhile, reduction production cost is also helped, so that economic benefit improves；
4. ethanol amine can be used as the vulcanizing agent and promotor of rubber by the way that ethanol amine is added, to be conducive to improve rubber
The performance of rubber powder, so that the toughness and enhanced strength of bituminous concrete, when so that wheel rolling bituminous pavement, bituminous concrete
It is not easily susceptible to cracking, is conducive to extend the service life of bituminous pavement；
It is reacted 5. the carboxylic ester group on Epocryl is easy to happen with the amino on ethanol amine, generating has amide
The amide product of base, amide groups generally have stronger high temperature resistance and stronger stability, to be conducive to improve drip
The stability and high temperature resistance of green concrete are conducive to extend asphalt road so that the endurance quality of bituminous concrete improves
The service life in face.
Specific embodiment
With reference to embodiments, invention is further described in detail.
In following embodiment, pitch uses the pitch of the model 10# of Hengshui Ze Hao rubber chemicals Co., Ltd.
In following embodiment, miberal powder uses the article No. of Gongyi City city Wei Zhannai material sales department for the limestone deposit of wz-01
Powder.
In following embodiment, aggregate is limited using fine sand and Zhangpu County letter the victory stone material of Hangzhou Xin Qian trade Co., Ltd
The mixture that the basalt of company mixes.
In following embodiment, Epocryl uses the trade mark of Guangzhou Li Hou trade Co., Ltd for the ring of RJ
Oxypropylene acid ester resin.
In following embodiment, rubber powder uses the article No. of Shanghai Wei Pu Chemical Engineering Technology Co., Ltd Guangzhou Branch for W-
874 granularity is the rubber powder of 16 mesh.
In following embodiment, ethanol amine use the article No. of Jinan Ning Sheng Information technology Co., Ltd for 085 triethanolamine.
In following embodiment, silane coupling agent uses the silicon of the model 174 of Dongguan City Ding Hai plastic cement Chemical Co., Ltd.
Alkane coupling agent kh-570.
In following embodiment, SILICA FUME uses the article No. of Shanghai Xian Bang Chemical Co., Ltd. for the SILICA FUME of J-1018.
In following embodiment, ultraviolet absorbing agent uses the article No. of Shenzhen Yi Cai Technology Co., Ltd. for the ultraviolet of UV-531
Absorbent.
Embodiment 1
A kind of bituminous concrete, the component including following mass fraction:
Pitch 22.5kg；Miberal powder 6kg；Aggregate 106.5kg, aggregate are stirred by 63.9kg fine sand and 42.6kg basalt
Uniformly form；Epocryl 7.5kg；Rubber powder 4.5kg；Ethanol amine 1.5kg.
In the present embodiment, basaltic partial size is 5mm.
In the present embodiment, the partial size of SILICA FUME is 800 mesh.
Bituminous concrete the preparation method is as follows:
(1) addition pitch 22.5kg in cylinder is mixed and stirred in 200L, is heated to 140 DEG C；
(2) increasing temperature is 150 DEG C, and miberal powder 6kg, aggregate 106.5kg, Epocryl are added while stirring
7.5kg, rubber powder 4.5kg, ethanol amine 1.5kg, stir evenly to get bituminous concrete.
Embodiment 2
A kind of bituminous concrete, the component including following mass fraction:
Pitch 26kg；Miberal powder 7kg；Aggregate 124kg, aggregate are uniformly mixed by 74.4kg fine sand and 49.6kg basalt
It forms；Epocryl 8.7kg；Rubber powder 5kg；Ethanol amine 1.7kg.
In the present embodiment, basaltic partial size is 10mm.
In the present embodiment, the partial size of SILICA FUME is 950 mesh.
Bituminous concrete the preparation method is as follows:
(1) addition pitch 26kg in cylinder is mixed and stirred in 200L, is heated to 140 DEG C；
(2) increasing temperature is 150 DEG C, and miberal powder 7kg, aggregate 124kg, Epocryl are added while stirring
8.7kg, rubber powder 5kg, ethanol amine 1.7kg, stir evenly to get bituminous concrete.
Embodiment 3
A kind of bituminous concrete, the component including following mass fraction:
Pitch 30kg；Miberal powder 8kg；Aggregate 142kg, aggregate are uniformly mixed by 85.2kg fine sand and 56.8kg basalt
It forms；Epocryl 10kg；Rubber powder 6kg；Ethanol amine 2kg.
In the present embodiment, basaltic partial size is 16mm.
In the present embodiment, the partial size of SILICA FUME is 1150 mesh.
Bituminous concrete the preparation method is as follows:
(1) addition pitch 30kg in cylinder is mixed and stirred in 200L, is heated to 140 DEG C；
(2) increasing temperature is 150 DEG C, and miberal powder 8kg, aggregate 142kg, Epocryl are added while stirring
10kg, rubber powder 6kg, ethanol amine 2kg, stir evenly to get bituminous concrete.
Embodiment 4
A kind of bituminous concrete, the component including following mass fraction:
Pitch 25kg；Miberal powder 8kg；Aggregate 135kg, aggregate be uniformly mixed by 81kg fine sand and 54kg basalt and
At；Epocryl 8kg；Rubber powder 5.5kg；Ethanol amine 1.8kg.
In the present embodiment, basaltic partial size is 15mm.
In the present embodiment, the partial size of SILICA FUME is 1000 mesh.
Bituminous concrete the preparation method is as follows:
(1) addition pitch 25kg in cylinder is mixed and stirred in 200L, is heated to 140 DEG C；
(2) increase temperature be 150 DEG C, while stirring be added miberal powder 8kg, aggregate 135kg, Epocryl 8kg,
Rubber powder 5.5kg, ethanol amine 1.8kg, stir evenly to get bituminous concrete.
Embodiment 5
A kind of bituminous concrete, the component including following mass fraction:
Pitch 26kg；Miberal powder 7kg；Aggregate 124kg, aggregate are uniformly mixed by 74.4kg fine sand and 49.6kg basalt
It forms；Epocryl 8.7kg；Rubber powder 5kg；Ethanol amine 1.7kg；Silane coupling agent 0.75kg；SILICA FUME
1.5kg；Ultraviolet absorbing agent 0.75kg.
In the present embodiment, basaltic partial size is 10mm.
In the present embodiment, the partial size of SILICA FUME is 950 mesh.
Bituminous concrete the preparation method is as follows:
(1) addition pitch 26kg in cylinder is mixed and stirred in 200L, is heated to 140 DEG C；
(2) increasing temperature is 150 DEG C, and miberal powder 7kg, aggregate 124kg, Epocryl are added while stirring
8.7kg, rubber powder 5kg, ethanol amine 1.7kg, silane coupling agent 0.75kg, SILICA FUME 1.5kg, ultraviolet absorber 0.75kg, are stirred
It mixes uniformly to get bituminous concrete.
Embodiment 6
A kind of bituminous concrete, the component including following mass fraction:
Pitch 26kg；Miberal powder 7kg；Aggregate 124kg, aggregate are uniformly mixed by 74.4kg fine sand and 49.6kg basalt
It forms；Epocryl 8.7kg；Rubber powder 5kg；Ethanol amine 1.7kg；Silane coupling agent 0.87kg；SILICA FUME
1.7kg；Ultraviolet absorbing agent 0.87kg.
In the present embodiment, basaltic partial size is 15mm.
In the present embodiment, the partial size of SILICA FUME is 1000 mesh.
Bituminous concrete the preparation method is as follows:
(1) addition pitch 26kg in cylinder is mixed and stirred in 200L, is heated to 140 DEG C；
(2) increasing temperature is 150 DEG C, and miberal powder 7kg, aggregate 124kg, Epocryl are added while stirring
8.7kg, rubber powder 5kg, ethanol amine 1.7kg, silane coupling agent 0.87kg, SILICA FUME 1.7kg, ultraviolet absorber 0.87kg, are stirred
It mixes uniformly to get bituminous concrete.
Embodiment 7
A kind of bituminous concrete, the component including following mass fraction:
Pitch 26kg；Miberal powder 7kg；Aggregate 124kg, aggregate are uniformly mixed by 74.4kg fine sand and 49.6kg basalt
It forms；Epocryl 8.7kg；Rubber powder 5kg；Ethanol amine 1.7kg；Silane coupling agent 1kg；SILICA FUME 2kg；It is ultraviolet
Light absorbers 1kg.
In the present embodiment, basaltic partial size is 12mm.
In the present embodiment, the partial size of SILICA FUME is 900 mesh.
Bituminous concrete the preparation method is as follows:
(1) addition pitch 26kg in cylinder is mixed and stirred in 200L, is heated to 140 DEG C；
(2) increasing temperature is 150 DEG C, and miberal powder 7kg, aggregate 124kg, Epocryl are added while stirring
8.7kg, rubber powder 5kg, ethanol amine 1.7kg, silane coupling agent 1kg, SILICA FUME 2kg, ultraviolet absorber 1kg, stir evenly, i.e.,
Obtain bituminous concrete.
Comparative example 1
A kind of bituminous concrete, the component including following mass fraction:
Pitch 26kg；Miberal powder 7kg；Aggregate 124kg, aggregate are uniformly mixed by 74.4kg fine sand and 49.6kg basalt
It forms.
In the present embodiment, basaltic partial size is 5mm.
In the present embodiment, the partial size of SILICA FUME is 850 mesh.
Bituminous concrete the preparation method is as follows:
(1) addition pitch 26kg in cylinder is mixed and stirred in 200L, is heated to 140 DEG C；
(2) increasing temperature is 150 DEG C, and miberal powder 7kg, aggregate 124kg are added while stirring, is stirred evenly mixed to get pitch
Solidifying soil.
Comparative example 2
A kind of bituminous concrete, the component including following mass fraction:
Pitch 26kg；Miberal powder 7kg；Aggregate 124kg, aggregate are uniformly mixed by 74.4kg fine sand and 49.6kg basalt
It forms；Epocryl 8.7kg.
In the present embodiment, basaltic partial size is 13mm.
In the present embodiment, the partial size of SILICA FUME is 950 mesh.
Bituminous concrete the preparation method is as follows:
(1) addition pitch 26kg in cylinder is mixed and stirred in 200L, is heated to 140 DEG C；
(2) increasing temperature is 150 DEG C, and miberal powder 7kg, aggregate 124kg, Epocryl are added while stirring
8.7kg stirs evenly to get bituminous concrete.
Comparative example 3
A kind of bituminous concrete, the component including following mass fraction:
Pitch 26kg；Miberal powder 7kg；Aggregate 124kg, aggregate are uniformly mixed by 74.4kg fine sand and 49.6kg basalt
It forms；Rubber powder 5kg；Ethanol amine 1.7kg.
In the present embodiment, basaltic partial size is 14mm.
In the present embodiment, the partial size of SILICA FUME is 1050 mesh.
Bituminous concrete the preparation method is as follows:
(1) addition pitch 26kg in cylinder is mixed and stirred in 200L, is heated to 140 DEG C；
(2) increasing temperature is 150 DEG C, and miberal powder 7kg, aggregate 124kg, rubber powder 5kg, ethanol amine are added while stirring
1.7kg stirs evenly to get bituminous concrete.
The detection data of each embodiment is shown in Table 1, and the detection data of each comparative example is shown in Table 2.
Experiment 1
According to the T0719-2011 " pitch in JTJ052-2000 " highway engineering pitch and Asphalt Mixture Experiment regulation "
Mixture wheel tracking test " detection bituminous concrete high-temperature stability, record dynamic stability (secondary/mm).
Experiment 2
The anti-of bituminous concrete is detected according to ASTM D 1074-1993 " test method of asphalt compression strength "
Compressive Strength (MPa).
Table 1
Table 2
| Comparative example 1 | Comparative example 2 | Comparative example 3 | |
| Dynamic stability | 1368 | 1364 | 1367 |
| Compression strength | 34.6 | 42.7 | 49.5 |
It can be obtained according to the data comparison of comparative example 1 in table 2 and comparative example 2, the component ratio ratio of the bituminous concrete of comparative example 2
Component compared with example 1 has increased Epocryl newly, and the compression strength of comparative example 2 is higher than comparative example 1, illustrates by adding
Enter Epocryl, is conducive to the viscosity for enhancing bituminous concrete, so that the biggish component of density in bituminous concrete
It is easier to be wrapped in concrete slurry, so that each component be conducive in bituminous concrete is uniformly dispersed, so that pitch is mixed
The density for coagulating soil is more uniform, thus be conducive to improve the compression strength of bituminous concrete, so that bituminous pavement is not easily susceptible to cracking,
It is conducive to extend the service life of bituminous pavement.
It can be obtained according to the data comparison of comparative example 1 in table 2 and comparative example 3, the component ratio ratio of bituminous concrete in comparative example 3
Component compared with example 1 has increased rubber powder and ethanol amine newly, and the compression strength of comparative example 3 is higher than comparative example 1, illustrates by adding
Enter rubber powder, be conducive to the toughness and intensity that enhance bituminous concrete, by the way that ethanol amine is added, is conducive to play rush to rubber powder
Into effect, so that the toughness and intensity of bituminous concrete are stronger, to be conducive to improve the compression strength of bituminous concrete.
It can be obtained according to the data comparison of comparative example 1-3 in table 2 and embodiment 1-4 in table 1, group of the comparative example 2 than comparative example 1
Divide and individually increased Epocryl newly, comparative example 3 has individually increased rubber powder and ethyl alcohol newly than the component of comparative example 1
The compression strength of amine, comparative example 2 and comparative example 3 is above comparative example 1, and the compression strength of comparative example 3 is higher than comparative example 2,
Illustrate that the pressure resistance of bituminous concrete can be improved by the way that Epocryl or addition rubber powder and ethanol amine is added
Degree, but the effect that rubber powder and ethanol amine is added can be more preferable than the effect of Epocryl is added；Embodiment 1-4 with
Comparative example 1 is compared, while having increased Epocryl, rubber powder and ethanol amine newly, and the compression strength of embodiment 1-4
It is above comparative example 2 and comparative example 3, illustrate to pass through while epoxy acrylic resin, rubber powder and ethanol amine is added, is conducive to
The compression strength of bituminous concrete is significantly increased, thus, the carboxylic ester group on Epocryl is easy and ethanol amine
On amino reaction so that entangled to each other to form reticular structure between molecule, be conducive to improve the viscosity of bituminous concrete with
And consistency, thus be conducive to enhance the compression strength of bituminous concrete, meanwhile, be conducive to biggish group of density in bituminous concrete
Divide and is wrapped in concrete slurry, so that each component is dispersed in bituminous concrete, so that bituminous concrete
Density is more uniform, and then is conducive to improve the compression strength of bituminous concrete；In addition, the dynamic stability of comparative example 1-3 is homogeneous
It is poor little, but the dynamic stability of embodiment 1-4 is apparently higher than comparative example 1-3, illustrates to be individually added into Epocryl
Or it is individually added into rubber powder and ethanol amine and can not improve the dynamic stability of bituminous concrete, dynamic stability mainly passes through ring
Carboxylic ester group on oxypropylene acid ester resin is reacted with the amino on ethanol amine generates amide product, has stability in amide product
Compared with the strong and preferable amide groups of high temperature resistance, so that the dynamic stability of bituminous concrete improves, so that pitch coagulation
The high-temperature behavior of soil improves.
It can be obtained according to the data comparison of embodiment 1-4 in table 1 and embodiment 5-7, the component ratio embodiment 1- of embodiment 5-7
4 component has increased silane coupling agent, SILICA FUME and ultraviolet absorbing agent newly, and the compression strength of embodiment 5-7 is above reality
A 1-4 is applied, illustrates that the pressure resistance of bituminous concrete can be improved to a certain extent by the way that silane coupling agent and SILICA FUME is added
Degree.By the way that silane coupling agent is added, silane coupling agent is conducive to enhance in bituminous concrete between organic component and inorganic component
Compatibility so that each component in bituminous concrete is easier to be uniformly dispersed, to be conducive to improve bituminous concrete density
The uniformity so that the compression strength of bituminous concrete enhances；The main component of SILICA FUME is silica, SILICA FUME and silane
The surface of the coupling agent stronger silicone hydroxyl of polarity easy to form, silicone hydroxyl are easy to form hydrogen bond with the stronger amide groups of polarity,
It is entangled to each other to form reticular structure between molecule to be conducive to, so that the consistency of bituminous concrete and viscosity improve, thus
The each component be conducive in bituminous concrete is uniformly dispersed, so that the density uniformity of bituminous concrete improves, and then is conducive to
Improve the compression strength of bituminous concrete；In addition, SILICA FUME has high-intensitive characteristic, be conducive to improve the anti-of bituminous concrete
Compressive Strength.
The embodiment of present embodiment is presently preferred embodiments of the present invention, not limits protection of the invention according to this
Range, therefore: the equivalence changes that all structures under this invention, shape, principle are done, should all be covered by protection scope of the present invention it
It is interior.
Claims (8)
1. a kind of bituminous concrete, it is characterized in that: including the component of following mass fraction:
22.5-30 parts of pitch；
6-8 parts of miberal powder；
106.5-142 parts of aggregate；
7.5-10 parts of Epocryl；
4.5-6 parts of rubber powder；
1.5-2 parts of ethanol amine.
2. bituminous concrete according to claim 1, it is characterized in that: the miberal powder is limestone.
3. bituminous concrete according to claim 1 to 2, it is characterized in that: the aggregate is that fine sand is mixed with basaltic
Close material.
4. bituminous concrete according to claim 3, it is characterized in that: described basaltic for partial size 5mm-16mm.
5. bituminous concrete according to claim 1 to 2, it is characterized in that: further including the component of following mass fraction:
0.75-1 parts of silane coupling agent.
6. bituminous concrete according to claim 1 to 2, it is characterized in that: further including the component of following mass fraction:
1.5-2 parts of SILICA FUME.
7. bituminous concrete according to claim 6, it is characterized in that: the partial size of the SILICA FUME is 800-1100 mesh.
8. bituminous concrete according to claim 1 to 2, it is characterized in that: further including the component of following mass fraction:
0.75-1 parts of ultraviolet absorbing agent.
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| CN201910050505.1A CN109608094A (en) | 2019-01-19 | 2019-01-19 | Bituminous concrete |
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| CN201910050505.1A CN109608094A (en) | 2019-01-19 | 2019-01-19 | Bituminous concrete |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110117927A (en) * | 2019-06-06 | 2019-08-13 | 广东隆建工程有限公司 | Asphalt concrete pavement construction method |
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