CN103570279B - Material for rapidly and effectively repairing pits in bituminous pavement and preparation method of material - Google Patents
Material for rapidly and effectively repairing pits in bituminous pavement and preparation method of material Download PDFInfo
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- CN103570279B CN103570279B CN201310513523.1A CN201310513523A CN103570279B CN 103570279 B CN103570279 B CN 103570279B CN 201310513523 A CN201310513523 A CN 201310513523A CN 103570279 B CN103570279 B CN 103570279B
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Abstract
The invention discloses a material for rapidly and effectively repairing pits in a bituminous pavement and a preparation method of the material. The material consists of the following components in percentage by weight: component A: 16-20% of cementing agent, and component B: 80-84% of graded aggregate, wherein the component A, namely cementing agent, comprises the following materials in percentage by weight: 47-63% of petroleum asphalt, 3-5% of a modifying agent, 8-10% of mineral powder, 1-3% of a plasticizer, 8-10% of softening oil, 10-20% of waste rubber powder and 3-5% of a viscosity reducer; and the component B, namely graded aggregate, comprises the following materials in percentage by weight: 37-52% of coarse aggregate and 48-63% of fine aggregate. The material has relatively high liquidity and excellent performance, and is capable of rapidly maintaining the pits in the pavement, so as to avoid pavement diseases due to rolling compaction; and the material is simple and easy to use, and the technology can be popularized in a large range.
Description
[technical field]
The present invention relates to material of a kind of quick Efficient software patching asphalt pavement pit and preparation method thereof, belong to building material technical field.
[background technology]
Hole groove is the typical disease of bituminous pavement.It not only has a strong impact on function of surface and the use properties on road surface, also has a great impact safety.Pit repairing mainly for repairing and the reinforcement of hole groove, the local disease such as check crack, be full of cracks, simultaneously also can to local subsidence, gather around the diseases such as bag and slumping crack and repair.The construction technology of usual asphalt pavement pit repairing is: measure the scope and the degree of depth of destroying part, by the principle of " circle hole side is mended ", marks and roughly repairs skeletal lines (square or rectangular) with Lu Zhizheng line parallel or vertical grooving.Fluting should dig steady component, and cell wall wants vertical, and removes clean by bottom land, cell wall.In clean bottom land, cell wall thin brush one deck pitch binder applied, fill out the asphalt spreading and get ready immediately; Newly filling up part should a little more than former road surface.After driving stabilization by compaction, keep equal with former road surface.
Existing pit repairing material is all that the former shortcoming is exactly that materials are restricted, can only from asphalt blending station feeding, agglutinate poor performance with plain asphalt compound or emulsified bitumen cold-repairing material; The shortcoming of the latter is exactly bad with the cohesive force on former road surface, and the pavement strength of formation is inadequate, easily comes off.
The present invention sets out based on pit repairing technique fast and effectively, to improve the performance such as mobility, density, high-temperature stability, low-temperature cracking-resistance, water stability, interface adhesion of patching material, has carried out the autonomous research of formula for a product.
[summary of the invention]
The object of the present invention is to provide and a kind ofly possess excellent mobility, density, high-temperature stability, low-temperature cracking-resistance, water stability, interface adhesion performance, construction is easy to the material of quick Efficient software patching asphalt pavement pit.
Another object of the present invention is to provide a kind of preparation method of material.
To achieve these goals, the present invention is by the following technical solutions:
A material for quick Efficient software patching asphalt pavement pit, is characterized in that being made up of following components in weight percent:
Component A: agglutinate 16 ~ 20%,
B component: graded aggregate 80 ~ 84%,
The weight percent of described component A agglutinate consists of:
Petroleum pitch 47 ~ 63%, properties-correcting agent 3 ~ 5%, breeze 8 ~ 10%, softening agent 1 ~ 3%, softening oil 8 ~ 10%, waste Crumb rubber 10 ~ 20%, viscosity-depression agent 3 ~ 5%;
The weight percent of described B component graded aggregate consists of:
Coarse aggregate 37 ~ 52%, fine aggregate 48 ~ 63%,
The particle diameter of described coarse aggregate is 2.36mm ~ 9.5mm,
The particle diameter of described fine aggregate is 0.075mm ~ 1.18mm.
Petroleum pitch used in the present invention is preferably the petroleum pitch that 60 DEG C of viscosity are not less than 180Pa.s.
Properties-correcting agent used in the present invention is SBS, its thermoplastic elastomer, and its S/B is 30/70, tensile strength >=15MPa, and shore hardness is 75 ± 7A, melt turnover 0.50-5.00g/min.Because material should possess higher interfacial adhesion, better stress relaxation ability to be had simultaneously, thus select the SBS modification that hardness is lower, therefore the preferred YH-791 of properties-correcting agent SBS.
Breeze in the present invention is preferably limestone powder, and its hydrophilic coefficient, between 0.75 ~ 0.85, is Alkaline minerals, and it and asphalt interface can not only produce physical-chemical reaction, and at the asphalt membrane that its surface is formed, can not destroy under the long period of soaking of water.
It is low that softening agent in the present invention is preferably freezing point, and boiling point is 250 DEG C ~ 307 DEG C, and fusing point is the ester compound of-30 DEG C ~-55 DEG C, and be preferably dibutyl phthalate, its boiling point is 307 DEG C, and fusing point is-55 DEG C.
Softening oil in the present invention is the mineral oil that zero pour is less than-40 DEG C, its major ingredient to be carbon containing quantity be 10 ~ 18 alkane, naphthenic hydrocarbon, aromatic hydrocarbons or its derivative.
Waste Crumb rubber in the present invention is through high speed shear, levigate powdery granule by elastomeric materials such as junked tires, it is based on natural rubber and synthetic rubber, and the matrix material containing compositions such as carbon black, sulphur and Multimetal oxides. main component (natural rubber and synthetic rubber) is high molecular polymer, has very strong elasticity, toughness and wear resistance.
In the present invention viscosity-depression agent be polyolefins properties-correcting agent, be preferably viscosity-depression agent Sasobit(Sha Suobide), by German Sasol-Wax company in 1997 research and development.This kind of properties-correcting agent in a heated condition, simple and mechanical stirring is only needed stably to be scattered among pitch, overcome that traditional asphalt properties-correcting agent is easily emanated, the shortcoming of construction workability difference, simultaneously, it can also improve pitch high-temperature behavior, reduce mix and stir and construction temperature, the work-ing life on effective prolongation road surface, reduction cost are the properties-correcting agent with excellent combination benefit.
The coarse aggregate optimization technique that in the present invention, grating is gathered materials requires the diabase mineral aggregate being not less than III grade.
The fine aggregate that in the present invention, grating is gathered materials is river sand, mountain sand, extra large sand, artificial sand, or the mixture of one or more in natural with artificial mixed sand.
A preparation method for the material of above-mentioned quick Efficient software patching asphalt pavement pit, is characterized in that comprising the following steps:
A, petroleum pitch is heated to 165 ~ 195 DEG C to flow state, add softening oil and properties-correcting agent carries out grinding 30 minutes, then 200 ~ 215 DEG C are warming up to, 2 hours are stirred with 80 ~ 100r/min, be cooled to 185 ~ 195 DEG C and add softening agent and viscosity-depression agent, finally add waste Crumb rubber and breeze, stir and mix and obtain agglutinate for 1 hour;
B, graded aggregate is added obtained agglutinate, be heated to 185 ~ 195 DEG C and stir.
Compared with prior art, the present invention has following beneficial effect:
(1) material of the present invention has higher mobility, this is because the fine aggregate content of material own is high, breeze content is high, asphalt content is high, thus large mobility self can be relied on closely knit, so high workability characterizes one of important performance indexes of this material serviceability.
(2) material of the present invention is used for the repairing fast and effectively of hole, road surface groove, does not need large roller to roll, only needs simple paving and leveling, so both economize on resources and also save time, and can complete the maintenance work of hole, road surface groove fast.
(3) avoid occurring, because roll brought pavement disease, self-assembling formation intensity after this material cooled, not needing to roll, can avoid occurring many hidden danger of quality buried because of decking and rolling such as demixing temperature, aggregate segregation.
(4) material of the present invention also can be used for some more special sections, the region that such as well lid periphery, walkway, median strip etc. cannot adopt large roller to roll, and adopts this material can reach even, the smooth effect of pave-load layer.
(5) materials'use process of the present invention is simple, and this technology can be promoted on a large scale.
[embodiment]
Further illustrate the present invention by the following examples, these embodiments do not provide constraints to the present invention.
Embodiment 1:
Agglutinate component is taken, petroleum pitch 47%, properties-correcting agent 5%, breeze 10%, softening agent 3%, softening oil 10%, waste Crumb rubber 20%, viscosity-depression agent 5% by formula ratio;
Petroleum pitch is heated to 165 ~ 195 DEG C to flow state, add softening oil and properties-correcting agent carries out grinding 30 minutes, then 200 ~ 215 DEG C are warming up to, 2 hours are stirred with 80 ~ 100r/min, be cooled to 185 ~ 195 DEG C and add softening agent and viscosity-depression agent, finally add waste Crumb rubber and breeze, stir and mix and obtain agglutinate for 1 hour, its performance is as shown in table 1;
Graded aggregate is added obtained agglutinate, is heated to 185 ~ 195 DEG C and stirs, wherein the weight percent of agglutinate and graded aggregate is 20% and 80%, consisting of of graded aggregate:
Embodiment 2:
Agglutinate component is taken, petroleum pitch 57%, properties-correcting agent 3%, breeze 8%, softening agent 2%, softening oil 10%, waste Crumb rubber 17%, viscosity-depression agent 3% by formula ratio;
Petroleum pitch is heated to 165 ~ 195 DEG C to flow state, add softening oil and properties-correcting agent carries out grinding 30 minutes, then 200 ~ 215 DEG C are warming up to, 2 hours are stirred with 80 ~ 100r/min, be cooled to 185 ~ 195 DEG C and add softening agent and viscosity-depression agent, finally add waste Crumb rubber and breeze, stir and mix and obtain agglutinate for 1 hour, its performance is as shown in table 1;
Graded aggregate is added obtained agglutinate, is heated to 185 ~ 195 DEG C and stirs, wherein the weight percent of tackiness agent and graded aggregate is 18% and 82%, consisting of of graded aggregate:
Embodiment 3:
Agglutinate component is taken, petroleum pitch 63%, properties-correcting agent 5%, breeze 9%, softening agent 1%, softening oil 8%, waste Crumb rubber 10%, viscosity-depression agent 4% by formula ratio;
Petroleum pitch is heated to 165 ~ 195 DEG C to flow state, add softening oil and properties-correcting agent carries out grinding 30 minutes, then 200 ~ 215 DEG C are warming up to, 2 hours are stirred with 80 ~ 100r/min, be cooled to 185 ~ 195 DEG C and add softening agent and viscosity-depression agent, finally add waste Crumb rubber and breeze, stir and mix and obtain agglutinate for 1 hour, its performance is as shown in table 1;
Graded aggregate is added obtained agglutinate, is heated to 185 ~ 195 DEG C and stirs, wherein the weight percent of tackiness agent and graded aggregate is 16% and 84%, consisting of of graded aggregate:
Table 1: agglutinate technical indicator is surveyed
Carry out performance test to the finished-product material of embodiment 1, embodiment 2 and embodiment 3 respectively, its result is as shown in table 2.
Table 2: finished-product material carries out performance
As can be seen from table 1, table 2, implement 1, implement 2 and the performance of implementing 3 can meet the demands, material of the present invention, when Reparation of Bituminous Pavement hole groove, without the need to compacting, is filled up good material and is treated that temperature reduces and can be open to traffic, implement fast effectively easily.
Claims (9)
1. a material for quick Efficient software patching asphalt pavement pit, is characterized in that being made up of following components in weight percent:
Component A: agglutinate 16 ~ 20%,
B component: graded aggregate 80 ~ 84%,
The weight percent of described component A agglutinate consists of:
Petroleum pitch 47 ~ 63%, properties-correcting agent 3 ~ 5%, breeze 8 ~ 10%, softening agent 1 ~ 3%, softening oil 8 ~ 10%, waste Crumb rubber 10 ~ 20%, viscosity-depression agent 3 ~ 5%;
The weight percent of described B component graded aggregate consists of:
Coarse aggregate 37 ~ 52%, fine aggregate 48 ~ 63%,
The particle diameter of described coarse aggregate is 2.36mm ~ 9.5mm,
The particle diameter of described fine aggregate is 0.075mm ~ 1.18mm,
Described properties-correcting agent is thermoplastic elastomer, and its S/B is 30/70, tensile strength >=15MPa, and shore hardness is 75 ± 7A, melt turnover 0.50-5.00g/min.
2. the material of a kind of quick Efficient software patching asphalt pavement pit according to claim 1, is characterized in that described petroleum pitch 60 DEG C of viscosity are not less than 180Pa.s.
3. the material of a kind of quick Efficient software patching asphalt pavement pit according to claim 1, it is characterized in that described breeze is limestone powder, its hydrophilic coefficient is between 0.75 ~ 0.85.
4. the material of a kind of quick Efficient software patching asphalt pavement pit according to claim 1, it is characterized in that described softening agent be boiling point is 250 DEG C ~ 307 DEG C, fusing point is the ester compound of-30 DEG C ~-55 DEG C.
5. the material of a kind of quick Efficient software patching asphalt pavement pit according to claim 1, is characterized in that described softening oil is the mineral oil that zero pour is less than-40 DEG C.
6. the material of a kind of quick Efficient software patching asphalt pavement pit according to claim 1, is characterized in that described viscosity-depression agent is polyolefins properties-correcting agent.
7. the material of a kind of quick Efficient software patching asphalt pavement pit according to claim 1, is characterized in that described coarse aggregate optimization technique requires to be not less than the diabase mineral aggregate of III grade.
8. the material of a kind of quick Efficient software patching asphalt pavement pit according to claim 1, is characterized in that described fine aggregate is river sand, mountain sand, extra large sand, artificial sand, or the mixture of one or more in natural with artificial mixed sand.
9. a preparation method for the material of quick Efficient software patching asphalt pavement pit described in claim 1, is characterized in that comprising the following steps:
A, petroleum pitch is heated to 165 ~ 195 DEG C to flow state, add softening oil and properties-correcting agent carries out grinding 30 minutes, then 200 ~ 215 DEG C are warming up to, 2 hours are stirred with 80 ~ 100r/min, be cooled to 185 ~ 195 DEG C and add softening agent and viscosity-depression agent, finally add waste Crumb rubber and breeze, stir and mix and obtain agglutinate for 1 hour;
B, graded aggregate is added obtained agglutinate, be heated to 185 ~ 195 DEG C and stir.
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Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105366997B (en) * | 2015-12-01 | 2017-09-26 | 吉林大学 | Road surface pit repairing material and its construction treating methods under cryogenic conditions |
| CN105802265B (en) * | 2016-04-18 | 2019-04-23 | 南京道润交通科技有限公司 | A kind of compound mist sealing material of bituminous pavement |
| CN107759140B (en) * | 2017-11-16 | 2021-05-07 | 西咸新区众力沥青有限公司 | Self-compacting asphalt mixture and construction method thereof in repairing application of inspection well periphery and pit slot |
| CN107840600B (en) * | 2017-11-16 | 2021-02-12 | 西安众力沥青有限公司 | Durable self-flowing asphalt mixture and construction method in hardening of rail transit pavement |
| CN109265078A (en) * | 2018-11-08 | 2019-01-25 | 重庆市智翔铺道技术工程有限公司 | In-situ heat regeneration mixture and preparation method thereof for asphalt pavement repairing |
| CN109403175A (en) * | 2018-12-07 | 2019-03-01 | 湖南鑫长胜材料科技有限公司 | A kind of asphalt pavement pit repairing method |
| CN109503031A (en) * | 2018-12-24 | 2019-03-22 | 上海浦兴路桥建设工程有限公司 | A kind of asphalt and preparation method thereof from trickling |
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