CN109053040A - A kind of preparation process of the conductive epoxy bituminous concrete of basalt fiber and carbon fiber enhancing - Google Patents
A kind of preparation process of the conductive epoxy bituminous concrete of basalt fiber and carbon fiber enhancing Download PDFInfo
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- CN109053040A CN109053040A CN201810784892.7A CN201810784892A CN109053040A CN 109053040 A CN109053040 A CN 109053040A CN 201810784892 A CN201810784892 A CN 201810784892A CN 109053040 A CN109053040 A CN 109053040A
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- basalt
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- fiber
- graphene oxide
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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
- C04B14/00—Use of inorganic materials as fillers, e.g. pigments, for mortars, concrete or artificial stone; Treatment of inorganic materials specially adapted to enhance their filling properties in mortars, concrete or artificial stone
- C04B14/38—Fibrous materials; Whiskers
- C04B14/386—Carbon
-
- 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
- C04B14/00—Use of inorganic materials as fillers, e.g. pigments, for mortars, concrete or artificial stone; Treatment of inorganic materials specially adapted to enhance their filling properties in mortars, concrete or artificial stone
- C04B14/38—Fibrous materials; Whiskers
- C04B14/46—Rock wool ; Ceramic or silicate fibres
- C04B14/4643—Silicates other than zircon
-
- 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
- C04B16/00—Use of organic materials as fillers, e.g. pigments, for mortars, concrete or artificial stone; Treatment of organic materials specially adapted to enhance their filling properties in mortars, concrete or artificial stone
- C04B16/04—Macromolecular compounds
- C04B16/06—Macromolecular compounds fibrous
- C04B16/0675—Macromolecular compounds fibrous from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- C04B16/0683—Polyesters, e.g. polylactides
-
- 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
- C04B20/00—Use of materials as fillers for mortars, concrete or artificial stone according to more than one of groups C04B14/00 - C04B18/00 and characterised by shape or grain distribution; Treatment of materials according to more than one of the groups C04B14/00 - C04B18/00 specially adapted to enhance their filling properties in mortars, concrete or artificial stone; Expanding or defibrillating materials
- C04B20/02—Treatment
- C04B20/023—Chemical treatment
-
- 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
- C04B20/00—Use of materials as fillers for mortars, concrete or artificial stone according to more than one of groups C04B14/00 - C04B18/00 and characterised by shape or grain distribution; Treatment of materials according to more than one of the groups C04B14/00 - C04B18/00 specially adapted to enhance their filling properties in mortars, concrete or artificial stone; Expanding or defibrillating materials
- C04B20/10—Coating or impregnating
- C04B20/1055—Coating or impregnating with inorganic materials
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
Abstract
The invention discloses a kind of preparation processes of the conductive epoxy bituminous concrete of basalt fiber and carbon fiber enhancing, coarse aggregate graphene oxide treated basalt fiber, fine aggregate limestone, flyash are poured into the mixing in pot of preheating, rubber grain, polyester fiber is added, dry mixing is carried out to be uniformly mixed, binder bituminous epoxy, cement, fine aggregate sand, coarse aggregate rubble, polyacrylonitrile-based carbon fibre is added to be sufficiently mixed, add filler miberal powder, water-reducing agent mixes and stirs, obtain the epoxy asphalt concrete.The anti-folding and tensile splitting strength of concrete can be significantly improved by adding the modified basalt fibre of graphene oxide, basalt fibre is incorporated into concrete the brittleness that can reduce concrete, its toughness and crack resistance are improved, basalt fibre can improve the high-temperature stability and low-temperature cracking-resistance of bituminous concrete；It adds polyacrylonitrile-based carbon fibre and prepares the excellent epoxy asphalt concrete of electric conductivity, excellent road performance being capable of melting ice and snow.
Description
Technical field
The invention belongs to technical field of concrete, and in particular to a kind of conductive epoxy of basalt fiber and carbon fiber enhancing
The preparation process of bituminous concrete.
Background technique
Concrete has many advantages, such as that easily molded, low energy consumption, durability is good, cheap, thus becomes most widely used at present
One of general construction material, but its application is also limited the defects of great, brittleness is big, poor toughness.
For a long time, many scholars are exploring the method and approach for improving concrete performance, and Composite is cement matrix
Expect the main path of high performance, and fiber reinforcement is the core of this technology.Basalt fibre is as a kind of emerging environmental protection
Type inorganic fibers, with cost performance is high, tensile strength is high, corrosion-resistant, high temperature resistant, cracking resistance
The advantages that performance is good is the favorable substitutes of other fibrous materials.Since the cost of basalt fibre is low and can be significant
The performance for improving concrete, is increasingly subject to the concern of academia and engineering circles.
In cold winter, road surface accumulated snow due to snowfall freezes, can be brought to the coast is clear and traffic safety it is serious not
Good influence.According to statistics, traffic accident accounts for 35% or more of traffic in winter accident total amount caused by China freezes because of road snow mantle.Cause
How this, make bituminous pavement have the function of melting ice and snow and comprehensive its pavement performance of raising, become the hot spot of current research.
Conductive asphalt concrete is made and adding the conductive paste material of certain content into asphalt concrete
A kind of Cost of New Type Asphalt Pavement material with good electrical performance.After being powered up, conductive asphalt concrete can be with itself
Conductive exothermal increases pavement temperature and achievees the effect that snow melt deicing, thus solve cold districts by icy on road and
The problems such as caused traffic accident takes place frequently, traffic jam is interrupted.
Summary of the invention
The purpose of the present invention is being directed to existing problem, a kind of conducting ring of basalt fiber and carbon fiber enhancing is provided
The preparation process of oxygen bituminous concrete, the epoxy asphalt concrete according to this method production have excellent electric conductivity, Lu Yong
Performance, being capable of melting ice and snow；With excellent flexibility, high-temperature stability and low-temperature cracking-resistance.
The present invention is achieved by the following technical solutions:
A kind of preparation process of the conductive epoxy bituminous concrete of basalt fiber and carbon fiber enhancing, which is characterized in that including such as
Lower step:
(1) the surface coupling modifier processing of basalt fibre:
Dehydrated alcohol and distilled water 9:1 are mixed and made into solvent, 0.03-0.06 parts of Silane coupling agent KH550s are added, stirs 5-
After 7min, pretreatment basalt fibre is added, takes out and dries after standing 30-35min, heat 2-3h in 115-120 DEG C of baking oven
Afterwards, the Black Warrior of surface coupling modifier processing is obtained in 80-85 DEG C of drying in oven 2-3h with acetone, distillation water washing 2-3 times
Rock fiber；
(2) graphene oxide treated basalt fiber:
Under agitation, coupling modifier graphene oxide is slowly added in 5-10 parts of epoxy emulsion sizing agents, is stirred evenly,
Emulsion-type sizing agent is obtained, starching is carried out using basalt fibre of the sizing agent to gained surface coupling modifier processing in (1)
Processing；
(3) preparation process of conductive epoxy bituminous concrete:
By gained coarse aggregate graphene oxide treated basalt fiber, 5-10 parts of fine aggregate limestone, 50-55 parts of fine coal in (2)
Ash pours into the mixing in pot of preheating, and 10-12 part rubber grains, 1-2 part polyester fibers are added, and progress dry mixing 60-90s is uniformly mixed,
Be added 70-80 parts of binder bituminous epoxies, 90-100 parts of cement, 160-170 parts of fine aggregate sand, 270-280 parts of coarse aggregate rubbles,
0.5-1 parts of polyacrylonitrile-based carbon fibres carry out sufficiently mixing 90-95s, add 10-20 parts of filler miberal powders, 5-6 parts of water-reducing agents are mixed
And 90-95s, obtain the epoxy asphalt concrete.
Further, in step (1) basalt fibre pretreatment: by 1-2 parts of basalt fibres in Soxhlet extractor
With acetone extraction 10-12h, then with distilled water immersion 4-6 times, then each 25-35min dries 2- in 80-85 DEG C of baking oven
3h obtains pretreatment basalt fibre.
Further, in step (2) graphene oxide coupling modifier: into 2-4 parts of graphene oxides 1:5-10 be added
Water, ultrasonic disperse add 0.1-0.2 parts of coupling agents to be mixed evenly, and adjusting pH is 3.5-4.5, and 10-12h is reacted in water bath with thermostatic control,
Obtain coupling modifier graphene oxide；
Starching speed is 14-18cm/min, and tow tension is moderate, and drying temperature is 108-112 DEG C, and rate of sizing control is 1-2%.
Further, water-cement ratio is 0.38 in step (3), and mixing and stirring temperature is 140-150 DEG C.
The present invention has the advantage that compared with prior art
(1) for basalt fibre after Silane coupling agent KH550 is handled, surface becomes coarse, forms coupling agent coating, can improve
With the compatibility and interfacial combined function of epoxy asphalt concrete matrix, hence it is evident that improve its mechanical property, tensile strength and impact
Intensity obtains preferable reinforcing effect；
Graphene oxide is modified by coupling agent, and modified graphene oxide is introduced into sizing agent to the Black Warrior
Rock fiber carries out surface coating modified；Coupling agent is successfully grafted to surface of graphene oxide, and basalt fibre is through graphene oxide
After modified sizing agent processing, surface roughness and active functional group content increase, and improve the ultimate strength of basalt fibre；
The ratcheting effect of machinery of the interface of graphene oxide treated basalt fiber and epoxy asphalt concrete matrix and chemical bonding
Effect enhancing, water ratio limit intensity are improved, and interlaminar shear strength is improved.
(2) add the modified basalt fibre of graphene oxide can significantly improve concrete anti-folding and Split-tension of Rolled it is strong
Degree, basalt fibre are incorporated into concrete the brittleness that can reduce concrete, improve its toughness and crack resistance, and basalt fibre can
To improve every pavement performance of bituminous concrete, the significant effect especially in terms of high-temperature stability and low-temperature cracking-resistance；When profound
Military rock fiber and flyash are compound, can be further improved the mechanical property of Basalt fiber concrete；
Rubber grain is added in epoxy asphalt concrete and its flexible and toughness can be improved in polyester fiber, is had better
High-temperature behavior and water stability；
It adds polyacrylonitrile-based carbon fibre and prepares conductive epoxy bituminous concrete, conductive epoxy bituminous concrete can both obtain excellent
Good electric conductivity, it is also possible to obtain excellent pavement performance, it being capable of melting ice and snow.
Specific embodiment
Embodiment 1
A kind of preparation process of the conductive epoxy bituminous concrete of basalt fiber and carbon fiber enhancing, which is characterized in that including such as
Lower step:
(1) the surface coupling modifier processing of basalt fibre:
Dehydrated alcohol and distilled water 9:1 are mixed and made into solvent, 0.03 part of Silane coupling agent KH550 is added, after stirring 5min, is added
Enter and pre-process basalt fibre, take out and dry after standing 30min, after heating 2h in 115-120 DEG C of baking oven, with acetone, distillation
Water washing 2 times, in 80-85 DEG C of drying in oven 2h, obtain the basalt fibre of surface coupling modifier processing；
(2) graphene oxide treated basalt fiber:
Under agitation, coupling modifier graphene oxide is slowly added in 5 parts of epoxy emulsion sizing agents, stirs evenly, obtains
To emulsion-type sizing agent, carried out at starching using basalt fibre of the sizing agent to gained surface coupling modifier processing in (1)
Reason；
(3) preparation process of conductive epoxy bituminous concrete:
Gained coarse aggregate graphene oxide treated basalt fiber, 5 parts of fine aggregate limestone, 50 parts of flyash in (2) are poured into
Preheating is mixed in pot, and 10 parts of rubber grains, 1 part of polyester fiber are added, and is carried out dry mixing 60s and is uniformly mixed, 70 parts of binders are added
Bituminous epoxy, 90 parts of cement, 160 parts of fine aggregate sand, 270 parts of coarse aggregate rubbles, 0.5 part of polyacrylonitrile-based carbon fibre carry out abundant
90s is mixed and stirred, adds 10 parts of filler miberal powders, 5 parts of water-reducing agents mix and stir 90s, obtains the epoxy asphalt concrete.
Further, in step (1) basalt fibre pretreatment: 1 part of basalt fibre is used in Soxhlet extractor
Acetone extraction 10h, then with distilled water immersion 4 times, then each 25min is dried 2h in 80-85 DEG C of baking oven, is pre-processed
Basalt fibre.
Further, in step (2) graphene oxide coupling modifier: into 2 parts of graphene oxides 1:5 be added water, surpass
Sound dispersion, adds 0.1 part of coupling agent to be mixed evenly, and adjusting pH is 3.5-4.5, and water bath with thermostatic control reacts 10h, obtains coupling modifier
Graphene oxide；
Starching speed is 14cm/min, and tow tension is moderate, and drying temperature is 108-112 DEG C, and rate of sizing control is 1%.
Further, water-cement ratio is 0.38 in step (3), and mixing and stirring temperature is 140-150 DEG C.
Embodiment 2
A kind of preparation process of the conductive epoxy bituminous concrete of basalt fiber and carbon fiber enhancing, which is characterized in that including such as
Lower step:
(1) the surface coupling modifier processing of basalt fibre:
Dehydrated alcohol and distilled water 9:1 are mixed and made into solvent, 0.06 part of Silane coupling agent KH550 is added, after stirring 7min, is added
Enter and pre-process basalt fibre, take out and dry after standing 35min, after heating 3h in 115-120 DEG C of baking oven, with acetone, distillation
Water washing 3 times, in 80-85 DEG C of drying in oven 3h, obtain the basalt fibre of surface coupling modifier processing；
(2) graphene oxide treated basalt fiber:
Under agitation, coupling modifier graphene oxide is slowly added in 10 parts of epoxy emulsion sizing agents, stirs evenly, obtains
To emulsion-type sizing agent, carried out at starching using basalt fibre of the sizing agent to gained surface coupling modifier processing in (1)
Reason；
(3) preparation process of conductive epoxy bituminous concrete:
Gained coarse aggregate graphene oxide treated basalt fiber, 10 parts of fine aggregate limestone, 55 parts of flyash in (2) are poured into
Preheating is mixed in pot, and 12 parts of rubber grains, 2 parts of polyester fibers are added, and is carried out dry mixing 90s and is uniformly mixed, 80 parts of binders are added
Bituminous epoxy, 100 parts of cement, 170 parts of fine aggregate sand, 280 parts of coarse aggregate rubbles, 1 part of polyacrylonitrile-based carbon fibre carry out abundant
95s is mixed and stirred, adds 20 parts of filler miberal powders, 6 parts of water-reducing agents mix and stir 95s, obtains the epoxy asphalt concrete.
Further, in step (1) basalt fibre pretreatment: 2 parts of basalt fibres are used in Soxhlet extractor
Acetone extraction 12h, then with distilled water immersion 6 times, then each 35min is dried 3h in 80-85 DEG C of baking oven, is pre-processed
Basalt fibre.
Further, in step (2) graphene oxide coupling modifier: into 4 parts of graphene oxides 1:10 be added water, surpass
Sound dispersion, adds 0.2 part of coupling agent to be mixed evenly, and adjusting pH is 3.5-4.5, and water bath with thermostatic control reacts 12h, obtains coupling modifier
Graphene oxide；
Starching speed is 18cm/min, and tow tension is moderate, and drying temperature is 108-112 DEG C, and rate of sizing control is 2%.
Further, water-cement ratio is 0.38 in step (3), and mixing and stirring temperature is 140-150 DEG C.
According to the epoxy asphalt concrete that the method for the present invention makes, there is excellent electric conductivity, pavement performance, Neng Gourong
Ice snow melting；With excellent flexibility, high-temperature stability and low-temperature cracking-resistance.
Claims (4)
1. a kind of preparation process of the conductive epoxy bituminous concrete of basalt fiber and carbon fiber enhancing, which is characterized in that including
Following steps:
(1) the surface coupling modifier processing of basalt fibre:
Dehydrated alcohol and distilled water 9:1 are mixed and made into solvent, 0.03-0.06 parts of Silane coupling agent KH550s are added, stirs 5-
After 7min, pretreatment basalt fibre is added, takes out and dries after standing 30-35min, heat 2-3h in 115-120 DEG C of baking oven
Afterwards, the Black Warrior of surface coupling modifier processing is obtained in 80-85 DEG C of drying in oven 2-3h with acetone, distillation water washing 2-3 times
Rock fiber；
(2) graphene oxide treated basalt fiber:
Under agitation, coupling modifier graphene oxide is slowly added in 5-10 parts of epoxy emulsion sizing agents, is stirred evenly,
Emulsion-type sizing agent is obtained, starching is carried out using basalt fibre of the sizing agent to gained surface coupling modifier processing in (1)
Processing；
(3) preparation process of conductive epoxy bituminous concrete:
By gained coarse aggregate graphene oxide treated basalt fiber, 5-10 parts of fine aggregate limestone, 50-55 parts of fine coal in (2)
Ash pours into the mixing in pot of preheating, and 10-12 part rubber grains, 1-2 part polyester fibers are added, and progress dry mixing 60-90s is uniformly mixed,
Be added 70-80 parts of binder bituminous epoxies, 90-100 parts of cement, 160-170 parts of fine aggregate sand, 270-280 parts of coarse aggregate rubbles,
0.5-1 parts of polyacrylonitrile-based carbon fibres carry out sufficiently mixing 90-95s, add 10-20 parts of filler miberal powders, 5-6 parts of water-reducing agents are mixed
And 90-95s, obtain the epoxy asphalt concrete.
2. a kind of preparation of the conductive epoxy bituminous concrete of basalt fiber and carbon fiber enhancing according to claim 1
Technique, which is characterized in that the pretreatment of basalt fibre in step (1):
1-2 parts of basalt fibres are used into acetone extraction 10-12h in Soxhlet extractor, then with distilled water immersion 4-6 times, every time
Then 25-35min dries 2-3h in 80-85 DEG C of baking oven, obtain pretreatment basalt fibre.
3. a kind of preparation of the conductive epoxy bituminous concrete of basalt fiber and carbon fiber enhancing according to claim 1
Technique, which is characterized in that the coupling modifier of graphene oxide in step (2):
Into 2-4 parts of graphene oxides, water is added in 1:5-10, and ultrasonic disperse adds 0.1-0.2 parts of coupling agents to be mixed evenly, and is adjusted
Section pH is 3.5-4.5, and water bath with thermostatic control reacts 10-12h, obtains coupling modifier graphene oxide；
Starching speed is 14-18cm/min, and tow tension is moderate, and drying temperature is 108-112 DEG C, and rate of sizing control is 1-2%.
4. a kind of preparation of the conductive epoxy bituminous concrete of basalt fiber and carbon fiber enhancing according to claim 1
Technique, which is characterized in that water-cement ratio is 0.38 in step (3), and mixing and stirring temperature is 140-150 DEG C.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810784892.7A CN109053040A (en) | 2018-07-17 | 2018-07-17 | A kind of preparation process of the conductive epoxy bituminous concrete of basalt fiber and carbon fiber enhancing |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810784892.7A CN109053040A (en) | 2018-07-17 | 2018-07-17 | A kind of preparation process of the conductive epoxy bituminous concrete of basalt fiber and carbon fiber enhancing |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109825098A (en) * | 2019-01-29 | 2019-05-31 | 刘建军 | Modified heavy traffic paving asphalt and preparation method thereof |
| CN111233347A (en) * | 2020-03-02 | 2020-06-05 | 东南大学 | Method for modifying basalt fiber carrier through ultraviolet light grafting |
| CN111979774A (en) * | 2020-07-07 | 2020-11-24 | 广西大学 | Aminated graphene modified polyacrylonitrile active fiber and preparation method and application thereof |
| CN112195713A (en) * | 2020-10-09 | 2021-01-08 | 周静 | Asphalt laying method for road construction |
| CN113603368A (en) * | 2021-07-29 | 2021-11-05 | 江西鑫盛实业有限公司 | Preparation method of modified basalt fiber for anti-cracking waterproof agent of expanded fiber |
| CN113788660A (en) * | 2021-10-27 | 2021-12-14 | 天元建设集团有限公司 | High-strength anti-crack concrete |
| CN114109453A (en) * | 2021-11-05 | 2022-03-01 | 重庆交通大学 | Automatic heat preservation control structure of traffic tunnel in frozen soil district in season |
| CN115819027A (en) * | 2022-12-24 | 2023-03-21 | 北京路新沥青混凝土有限公司 | Hot-mix epoxy asphalt concrete and preparation method and application thereof |
-
2018
- 2018-07-17 CN CN201810784892.7A patent/CN109053040A/en not_active Withdrawn
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109825098A (en) * | 2019-01-29 | 2019-05-31 | 刘建军 | Modified heavy traffic paving asphalt and preparation method thereof |
| CN109825098B (en) * | 2019-01-29 | 2021-04-27 | 常德金牛通达沥青有限公司 | Modified heavy traffic asphalt and preparation method thereof |
| CN111233347A (en) * | 2020-03-02 | 2020-06-05 | 东南大学 | Method for modifying basalt fiber carrier through ultraviolet light grafting |
| CN111233347B (en) * | 2020-03-02 | 2022-05-10 | 东南大学 | Method for modifying basalt fiber carrier through ultraviolet grafting |
| CN111979774A (en) * | 2020-07-07 | 2020-11-24 | 广西大学 | Aminated graphene modified polyacrylonitrile active fiber and preparation method and application thereof |
| CN112195713A (en) * | 2020-10-09 | 2021-01-08 | 周静 | Asphalt laying method for road construction |
| CN113603368A (en) * | 2021-07-29 | 2021-11-05 | 江西鑫盛实业有限公司 | Preparation method of modified basalt fiber for anti-cracking waterproof agent of expanded fiber |
| CN113788660A (en) * | 2021-10-27 | 2021-12-14 | 天元建设集团有限公司 | High-strength anti-crack concrete |
| CN114109453A (en) * | 2021-11-05 | 2022-03-01 | 重庆交通大学 | Automatic heat preservation control structure of traffic tunnel in frozen soil district in season |
| CN115819027A (en) * | 2022-12-24 | 2023-03-21 | 北京路新沥青混凝土有限公司 | Hot-mix epoxy asphalt concrete and preparation method and application thereof |
| CN115819027B (en) * | 2022-12-24 | 2023-06-30 | 北京路新沥青混凝土有限公司 | Hot-mix epoxy asphalt concrete and preparation method and application thereof |
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Application publication date: 20181221 |