CN106675056B - A kind of expansion joint replacement diatomite bituminous epoxy and its preparation method and application - Google Patents
A kind of expansion joint replacement diatomite bituminous epoxy and its preparation method and application Download PDFInfo
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- CN106675056B CN106675056B CN201710056062.8A CN201710056062A CN106675056B CN 106675056 B CN106675056 B CN 106675056B CN 201710056062 A CN201710056062 A CN 201710056062A CN 106675056 B CN106675056 B CN 106675056B
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- expansion joint
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L95/00—Compositions of bituminous materials, e.g. asphalt, tar, pitch
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G59/00—Polycondensates containing more than one epoxy group per molecule; Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups
- C08G59/18—Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups ; e.g. general methods of curing
- C08G59/40—Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups ; e.g. general methods of curing characterised by the curing agents used
- C08G59/50—Amines
- C08G59/56—Amines together with other curing agents
- C08G59/60—Amines together with other curing agents with amides
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G59/00—Polycondensates containing more than one epoxy group per molecule; Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups
- C08G59/18—Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups ; e.g. general methods of curing
- C08G59/40—Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups ; e.g. general methods of curing characterised by the curing agents used
- C08G59/62—Alcohols or phenols
- C08G59/64—Amino alcohols
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- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Civil Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Road Paving Structures (AREA)
Abstract
The invention discloses a kind of expansion joint replacement diatomite bituminous epoxies and its preparation method and application.Diatomite bituminous epoxy includes following raw material in parts by mass: 100 parts of pitch, 15 ~ 40 parts of epoxy resin, 20 ~ 55 parts of diatomite, 5 ~ 15 parts of curing agent.Preparation method is first to be mixed and made into A material with diatomite and epoxy resin, then curing agent and remaining diatomite are mixed and made into B material, is eventually adding pitch.Its application in expansion joint is replaced is then that diatomite bituminous epoxy is constructed with collection with sandstone material after mixing evenly.
Description
Technical field
The invention belongs to building material technical fields, and in particular to a kind of expansion joint replacement diatomite bituminous epoxy and its
Preparation method and application.
Background technique
With the rapid development of highway, traffic volume of highway be increased dramatically, and Vehicle Speed and vehicle axle weight are continuous
Increase, expansion joint is more prominent there is a situation where destroying, if cannot be repaired in time, will seriously affect pavement performance, driving
Safety and comfort.During the replacement of bridge expanssion joint, traffic congestion is a universal big problem, and conventional expansion joint is more
It is longer to change method closure traffic time, it is often necessary to carry out traffic control, frequently result in blocking, be easy to cause safety accident, give
The production and living of the masses bring many security risks.Meanwhile existing bridge expanssion joint replacement technology does not approach fundamentally
Combination problem between the old and new's material, new expansion joint are destroyed when reaching its service life far away, are needed in the short time
It inside replaces again, has caused greatly the waste of manpower and material resources.Therefore, it develops a kind of for the quick-replaceable pitch in expansion joint
Concrete material seems particularly necessary.It is often solved the above problems in engineering with developing Novel asphalt concrete material, and diatom
Native epoxy asphalt concrete is one kind of new material.Not only intensity is big, caking property is strong for the material, low-temperature cracking-resistance is good.And
It is more convenient for compared with epoxy asphalt concrete construction, the advantages that construction time is easily-controllable.With practicability meaning and significant society
Economic benefit.
To shorten the caking property and crack resistance that the firm time of expanded joint material simultaneously improves material simultaneously, can lead in construction
It crosses and adds epoxy resin in asphalt to improve the performance of material.For epoxy asphalt mixture in order to guarantee that it can be suitable
Benefit construction, a series of construction technologies such as must complete discharging before gel, pave, roll.However due to epoxy resin and admittedly
It is cured reaction after agent mixing, curing reaction is affected and is difficult to control by temperature and time, in order to guarantee
Construction quality is to make difficulty of construction increase.
Summary of the invention
In view of the above shortcomings of the prior art, the present invention provides that a kind of firm time is short, caking property is strong and crack resistance
Good expansion joint replacement diatomite bituminous epoxy, and corresponding offer preparation method and application, have convenient for construction, use peace
The advantages that loopful is protected, and cost is relatively low, and application range is wider.
To achieve the goals above, The technical solution adopted by the invention is as follows:
A kind of expansion joint replacement diatomite bituminous epoxy, including following raw material in parts by mass: 100 parts of pitch, ring
15 ~ 40 parts of oxygen resin, 20 ~ 55 parts of diatomite, 5 ~ 15 parts of curing agent.
Wherein: the curing agent is triethanolamine, m-phenylene diamine (MPD) and/or caprolactam.Its optimal proportion is quality
Than the triethanolamine, m-phenylene diamine (MPD) and caprolactam for 4:2:3.
A kind of above-mentioned expansion joint replacement preparation method of diatomite bituminous epoxy, comprising the following steps:
1) first diatomite and epoxy resin 1:1 ~ 2 in mass ratio are stirred evenly, then is placed in 90 DEG C of high temperature furnace and keeps the temperature
20min continues 3 ~ 5min of stirring, so as to kieselguhr adsorption epoxy resin and air is discharged, then seals and stands and be cooled to room
Temperature obtains A material.
2) curing agent and remaining diatomite are mixed and stirred for uniformly, then are placed in 80 DEG C of high temperature furnace and heat 30min,
Continue 3 ~ 5min of stirring, then cooled to room temperature, obtains B material.
3) A material and B material are mixed and stirred for uniformly, then 165 DEG C of pitch is poured into and stirred evenly, expansion joint is made more
Use diatomite bituminous epoxy instead.
Wherein: repeating the heat preservation in step 1) and subsequent stir more than twice.
In step 1), if having caking phenomenon in the A material being cooled to room temperature, needing to be warming up to 90 DEG C and stirring equal
It is even.
It is to reduce the material dress paving time and simplify construction technology that diatomite bituminous epoxy, which needs the main problem solved,.It utilizes
The diatom soil body is light, matter is soft, porous, acidproof, and large specific surface area, chemical property are stablized, and thermal stability and adsorption capacity are by force etc. special
Property, it uniformly mixes and is integrated after respectively sufficiently being adsorbed epoxy resin with curing agent by the suitable component of addition.Epoxy resin
It is cured reaction after contacting with curing agent, intensity is made to be rapidly reached current requirement, to reduce material dress paving to transit time.
Meanwhile the presence of diatomite can preferably control curing reaction speed and temperature, and diatomite bituminous epoxy production technology, storage
Method is simple, is simple and efficient work progress.
In actual production, it can first prepare A material and B expects and stores respectively, complete step 3) again at the construction field (site), so
Following application is carried out afterwards:
A kind of application of above-mentioned expansion joint replacement with diatomite bituminous epoxy in expanded joint material replacement, including following step
It is rapid:
(1) first expansion joint inner stuffing is removed.
(2) diatomite bituminous epoxy and collection are mixed and stirred for uniformly, being made flexible with sandstone material at 110 ~ 150 DEG C
Stitch replacement diatomite epoxy asphalt concrete.
(3) the diatomite epoxy asphalt concrete is filled into expansion joint, is allowed to naturally cool to and surface temperature phase
With i.e. completion construction.
Wherein: mass ratio of the expansion joint replacement with diatomite bituminous epoxy with collection with sandstone material in step (2) is visual
Engine request is taken as 1:5 ~ 10.The collection with sandstone material by mass parts be respectively 500 ~ 1800 parts limestone and 100 ~
500 parts of river sand mixes.Limestone particle size range is 13.2 ~ 4.75mm, and river sand particle size range is 0.08 ~ 2.36mm.
The present invention has the caking property and crack resistance that can be shortened the firm time of expanded joint material and improve material simultaneously, just
In construction, using safety and environmental protection, cost is relatively low, and application range is wider, there is biggish advantage on production technology, storage method.
Compared with prior art, the invention has the following beneficial effects:
1, performance is adjustable.The wearability and barrier properties of diatomite epoxy asphalt concrete of the invention are adjustable, adjustment
Mode is the composition and ratio for changing diatomite and epoxy resin.The dosage for improving diatomite can increase the wearability of final solidfied material
And crack resistance；The usage ratio for improving diatomite can reduce the compactness that voidage improves mixture.It therefore can be according to specifically not
Same engineer application environment, makes solidfied material show different performance by the ratio of appropriate adjustment raw material.
2, the low-volatile feature of environmental protection.Diatomite in diatomite epoxy asphalt concrete of the invention has stronger adsorption energy
Power can adsorb completely epoxy resin and curing agent, therefore make and use process Poisoning volatile matter very little；In addition, this
The diatomite epoxy asphalt concrete of invention is to curing agent without particular/special requirement, it is only necessary to select low-volatile curing agent can be significantly
Improve the safety in preparation and use process.It can accomplish in preparation and application process when using solid material completely without organic
Object volatilization.
3, good process tunability.Work during its preparation and application of diatomite epoxy asphalt concrete of the invention
Skill parameter can adjust in a certain range.If mixing station farther out or has inconvenient traffic away from construction site distance, silicon can be properly increased
The dosage of diatomaceous earth is to delay the epoxy resin cure reaction time；If mixing station is closer away from construction site, silicon can be suitably reduced
The dosage of diatomaceous earth is to promote the curing reaction time.
4, stronger economic serviceability.In diatomite epoxy asphalt concrete composition of the invention, diatomite is extensive
General chemical products, raw material sources are abundant.Diatomite price is about the half of epoxy resin；Meeting requirement premise
Under, it can adjust the economy that raw material composition ratio is optimal.
Specific embodiment
Invention is further described in detail combined with specific embodiments below.
Embodiment one
Expansion joint replacement diatomite bituminous epoxy: 100 parts of pitch, asphalt mixtures modified by epoxy resin is prepared using the raw material of following mass parts
30.8 parts of rouge, 40 parts of diatomite, 9.2 parts of curing agent (are the triethanolamine, m-phenylene diamine (MPD) and caprolactam of 4:2:3 by mass ratio
It constitutes).
The step of it is prepared are as follows:
1) first diatomite and epoxy resin 1:1 in mass ratio are stirred evenly, then is placed in 90 DEG C of high temperature furnace and keeps the temperature
20min, heat preservation, stirring can be repeated twice by continuing 3 ~ 5min(of stirring), so as to kieselguhr adsorption epoxy resin and air is discharged,
Then it seals and stands and be cooled to room temperature, obtain A material.There is caking phenomenon in the A material being cooled to room temperature, is warming up to 90 DEG C and stirs
Uniformly.
2) curing agent and remaining diatomite are mixed and stirred for uniformly, then are placed in 80 DEG C of high temperature furnace and heat 30min,
Continue 3 ~ 5min of stirring, then cooled to room temperature, obtains B material.
3) A material and B material are mixed and stirred for uniformly, then 165 DEG C of pitch is poured into and stirred evenly, expansion joint is made more
Use diatomite bituminous epoxy instead.
In step 1), if having caking phenomenon in the A material being cooled to room temperature, needing to be warming up to 90 DEG C and stirring equal
It is even.
Expansion joint replacement diatomite bituminous epoxy is applied in expanded joint material replacement, specifically includes the following steps:
(1) first expansion joint inner stuffing is removed.
(2) diatomite bituminous epoxy and collection are mixed and stirred for uniformly, expansion joint being made more with sandstone material at 120 DEG C
Use diatomite epoxy asphalt concrete instead.Wherein: diatomite bituminous epoxy with integrate match sandstone material mass ratio as 1:5.It is described
Integrate with sandstone material as 700 parts of limestone, 200 parts of river sand.
(3) the expansion joint replacement is filled into expansion joint with diatomite epoxy asphalt concrete, is allowed to naturally cool to
It is identical as surface temperature to complete construction.
Embodiment two
Expansion joint replacement diatomite bituminous epoxy: 100 parts of pitch, asphalt mixtures modified by epoxy resin is prepared using the raw material of following mass parts
30.8 parts of rouge, 40 parts of diatomite, 9.2 parts of curing agent (are the triethanolamine, m-phenylene diamine (MPD) and caprolactam of 4:2:3 by mass ratio
It constitutes).
The step of it is prepared are as follows:
1) first diatomite and epoxy resin 1:1 in mass ratio are stirred evenly, then is placed in 90 DEG C of high temperature furnace and keeps the temperature
20min, heat preservation, stirring can be repeated twice by continuing 3 ~ 5min(of stirring), so as to kieselguhr adsorption epoxy resin and air is discharged,
Then it seals and stands and be cooled to room temperature, obtain A material.There is caking phenomenon in the A material being cooled to room temperature, is warming up to 90 DEG C and stirs
Uniformly.
2) curing agent and remaining diatomite are mixed and stirred for uniformly, then are placed in 80 DEG C of high temperature furnace and heat 30min,
Continue 3 ~ 5min of stirring, then cooled to room temperature, obtains B material.
3) A material and B material are mixed and stirred for uniformly, then 165 DEG C of pitch is poured into and stirred evenly, expansion joint is made more
Use diatomite bituminous epoxy instead.
In step 1), if having caking phenomenon in the A material being cooled to room temperature, needing to be warming up to 90 DEG C and stirring equal
It is even.
Expansion joint replacement diatomite bituminous epoxy is applied in expanded joint material replacement, specifically includes the following steps:
(1) first expansion joint inner stuffing is removed.
(2) diatomite bituminous epoxy and collection are mixed and stirred for uniformly, expansion joint being made more with sandstone material at 135 DEG C
Use diatomite epoxy asphalt concrete instead.Wherein: diatomite bituminous epoxy with integrate match sandstone material mass ratio as 1:7.It is described
Integrate with sandstone material as 960 parts of limestone, 300 parts of river sand.
(3) the expansion joint replacement is filled into expansion joint with diatomite epoxy asphalt concrete, is allowed to naturally cool to
It is identical as surface temperature to complete construction.
Embodiment three
Expansion joint replacement diatomite bituminous epoxy: 100 parts of pitch, asphalt mixtures modified by epoxy resin is prepared using the raw material of following mass parts
40 parts of rouge, 32 parts of diatomite, 12 parts of curing agent (are the triethanolamine, m-phenylene diamine (MPD) and caprolactam structure of 4:2:3 by mass ratio
At).
The step of it is prepared are as follows:
1) first diatomite and epoxy resin 1:2 in mass ratio are stirred evenly, then is placed in 90 DEG C of high temperature furnace and keeps the temperature
20min, heat preservation, stirring can be repeated twice by continuing 3 ~ 5min(of stirring), so as to kieselguhr adsorption epoxy resin and air is discharged,
Then it seals and stands and be cooled to room temperature, obtain A material.There is caking phenomenon in the A material being cooled to room temperature, is warming up to 90 DEG C and stirs
Uniformly.
2) curing agent and remaining diatomite are mixed and stirred for uniformly, then are placed in 80 DEG C of high temperature furnace and heat 30min,
Continue 3 ~ 5min of stirring, then cooled to room temperature, obtains B material.
3) A material and B material are mixed and stirred for uniformly, then 165 DEG C of pitch is poured into and stirred evenly, expansion joint is made more
Use diatomite bituminous epoxy instead.
In step 1), if having caking phenomenon in the A material being cooled to room temperature, needing to be warming up to 90 DEG C and stirring equal
It is even.
Expansion joint replacement diatomite bituminous epoxy is applied in expanded joint material replacement, specifically includes the following steps:
(1) first expansion joint inner stuffing is removed.
(2) diatomite bituminous epoxy and collection are mixed and stirred for uniformly, expansion joint being made more with sandstone material at 150 DEG C
Use diatomite epoxy asphalt concrete instead.Wherein: diatomite bituminous epoxy with integrate match sandstone material mass ratio as 1:9.It is described
Integrate with sandstone material as 1270 parts of limestone, 380 parts of river sand.
(3) the expansion joint replacement is filled into expansion joint with diatomite epoxy asphalt concrete, is allowed to naturally cool to
It is identical as surface temperature to complete construction.
The above embodiment of the present invention is only example to illustrate the invention, and is not to implementation of the invention
The restriction of mode.For those of ordinary skill in the art, other can also be made not on the basis of the above description
With the variation and variation of form.Here all embodiments can not be exhaustive.It is all to belong to technical solution of the present invention
Changes and variations that derived from are still in the scope of protection of the present invention.
Claims (9)
1. a kind of expansion joint replacement preparation method of diatomite bituminous epoxy, the expansion joint replacement diatomite bituminous epoxy
Including following raw material in parts by mass: 100 parts of pitch, 15 ~ 40 parts of epoxy resin, 20 ~ 55 parts of diatomite, curing agent 5 ~ 15
Part；Characterized by comprising the following steps:
1) first diatomite and epoxy resin 1:1 ~ 2 in mass ratio are stirred evenly, then is placed in 90 DEG C of high temperature furnace and keeps the temperature
20min continues 3 ~ 5min of stirring, so as to kieselguhr adsorption epoxy resin and air is discharged, then seals and stands and be cooled to room
Temperature obtains A material；
2) curing agent and remaining diatomite are mixed and stirred for uniformly, then are placed in 80 DEG C of high temperature furnace and heat 30min, continued
3 ~ 5min is stirred, then cooled to room temperature, obtains B material；
3) A material and B material are mixed and stirred for uniformly, then 165 DEG C of pitch is poured into and stirred evenly, expansion joint replacement is made and uses
Diatomite bituminous epoxy.
2. the preparation method that diatomite bituminous epoxy is used in expansion joint replacement according to claim 1, which is characterized in that described
Curing agent be triethanolamine, m-phenylene diamine (MPD) and/or caprolactam.
3. the preparation method that diatomite bituminous epoxy is used in expansion joint replacement according to claim 1, which is characterized in that described
Curing agent be triethanolamine, m-phenylene diamine (MPD) and caprolactam that mass ratio is 4:2:3.
4. the preparation method that diatomite bituminous epoxy is used in expansion joint replacement according to claim 1, which is characterized in that repeat
Heat preservation and subsequent stirring in step 1) are more than twice.
5. the preparation method that diatomite bituminous epoxy is used in expansion joint replacement according to claim 1, which is characterized in that in step
It is rapid 1) in, when be cooled to room temperature A material in have caking phenomenon, then be warming up to 90 DEG C and stir evenly.
It is used 6. expansion joint prepared by a kind of preparation method of the replacement of expansion joint described in claim 1 diatomite bituminous epoxy is replaced
Application of the diatomite bituminous epoxy in expanded joint material replacement, which comprises the following steps:
(1) first expansion joint inner stuffing is removed；
(2) expansion joint replacement diatomite bituminous epoxy and collection are mixed and stirred for uniformly with sandstone material at 110 ~ 150 DEG C,
Expansion joint replacement diatomite epoxy asphalt concrete is made；
(3) the expansion joint replacement is filled into expansion joint with diatomite epoxy asphalt concrete, is allowed to naturally cool to and ground
Table temperature is identical to complete construction.
7. application of the expansion joint replacement according to claim 6 with diatomite bituminous epoxy in expanded joint material replacement,
It is characterized in that, expansion joint replacement diatomite bituminous epoxy in step (2) with integrate the mass ratio of matching sandstone material as 1:5 ~
10。
8. application of the expansion joint replacement according to claim 6 with diatomite bituminous epoxy in expanded joint material replacement,
It is characterized in that, collection described in step (2) with sandstone material by mass parts be respectively 500 ~ 1800 parts limestone and 100 ~
500 parts of river sand mixes.
9. application of the expansion joint replacement according to claim 8 with diatomite bituminous epoxy in expanded joint material replacement,
It is characterized in that, limestone particle size range is 13.2 ~ 4.75mm, river sand particle size range is 0.08 ~ 2.36mm.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710056062.8A CN106675056B (en) | 2017-01-25 | 2017-01-25 | A kind of expansion joint replacement diatomite bituminous epoxy and its preparation method and application |
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| CN201710056062.8A CN106675056B (en) | 2017-01-25 | 2017-01-25 | A kind of expansion joint replacement diatomite bituminous epoxy and its preparation method and application |
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| CN106675056B true CN106675056B (en) | 2019-03-22 |
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| CN109722044A (en) * | 2018-12-21 | 2019-05-07 | 重庆交通大学 | The epoxy-modified material of direct putting type, preparation method and its application method for hot asphalt |
| CN109721284A (en) * | 2018-12-21 | 2019-05-07 | 重庆交通大学 | A kind of bituminous epoxy and preparation method thereof |
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| CN104610770B (en) * | 2015-03-07 | 2016-08-31 | 陕西国琳公路养护工程有限公司 | A kind of preparation method of waterproof anti-rutting asphalt ground surface material |
| CN104649615B (en) * | 2015-03-07 | 2016-07-06 | 张升 | A kind of preparation method of low temperature resistant anticracking asphalt pavement material |
| CN105176107A (en) * | 2015-08-13 | 2015-12-23 | 山西省交通科学研究院 | Modified asphalt particles and preparation method thereof |
| CN105462273A (en) * | 2015-12-27 | 2016-04-06 | 安徽路达泰克沥青新材料有限公司 | Epoxy modified emulsified asphalt material and preparation method thereof |
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