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Emulsified bitumen concrete steady porcelain granule road surface base layer material and road surface base layer construction method thereof

A technology of pavement base material and emulsified asphalt, which is applied in the direction of roads, roads, and on-site coagulation pavement. Effect

Inactive Publication Date: 2009-01-21
CHONGQING UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there are very few existing technologies applying ceramsite to pavement materials, and there is no reference to its application in base materials

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] In the emulsified asphalt cement stabilized ceramsite pavement base material of this embodiment per cubic meter, the raw material weight ratio is as follows:

[0037] Cement: 95Kg, emulsified asphalt: 10Kg, ceramsite: 550Kg, stone chips: 750Kg, water: 135Kg.

[0038] After testing the specimen, the 7-day unconfined compressive strength is 3.83MPa, and the compressive modulus is 680MPa. The concrete prepared in this embodiment can be used to build pavement bases.

Embodiment 2

[0040] In the emulsified asphalt cement stabilized ceramsite pavement base material of this embodiment per cubic meter, the raw material weight ratio is as follows:

[0041] Cement: 100Kg, emulsified asphalt: 25Kg, ceramsite: 500Kg, stone chips: 800Kg, admixture (FDN superplasticizer): 0.5Kg, water: 125Kg.

[0042] After testing the specimen, the 7-day unconfined compressive strength is 4.15MPa, the compressive modulus is 720MPa, and the 28-day unconfined compressive strength is 4.53MPa. The concrete prepared in this embodiment can be used to build pavement bases.

Embodiment 3

[0044] In the emulsified asphalt cement stabilized ceramsite pavement base material of this embodiment per cubic meter, the raw material weight ratio is as follows:

[0045] Cement: 110Kg, emulsified asphalt: 15Kg, ceramsite: 620Kg, stone chips: 620Kg, admixture (polycarboxylic acid superplasticizer): 1Kg, water: 100Kg.

[0046] After testing the specimen, the 7-day unconfined compressive strength is 4.45MPa, the compressive modulus is 710MPa, and the 28-day unconfined compressive strength is 4.90MPa. The concrete prepared in this embodiment can be used to build pavement bases.

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Abstract

The invention discloses an emulsified asphalt-cement stabilized porcelain granule base course material which eliminates waste and has good performance. Porcelain granules are utilized to substitute broken stones to prepare the base course material, the base course material mainly comprises cement, emulsified asphalt, the porcelain granules, stone chips and water, and further the porcelain granules are sintered porcelain granules produced by pelleting and roasting the waste. The base course material reduces rigidity, contributes to the reduction of ruts and reflective cracks on a road surface, improves the structural performance of the road surface, and has good impermeability, antifreezing performance and durability as well as convenient construction. The invention also provides a construction method for the emulsified asphalt-cement stabilized porcelain granule base course.

Description

technical field [0001] The invention relates to the technical field of road engineering, in particular to a cement concrete pavement base material and a construction method for the pavement base. Background technique [0002] At present, the structure type commonly used in my country's high-grade highways is semi-rigid base asphalt pavement, and cement-stabilized macadam is widely used in the base or sub-base of high-grade highways due to its high strength, good stability, and strong erosion resistance. . However, due to the material and structural characteristics of this semi-rigid base, it is easy to cause cracks in the base, and then form reflective cracks in the asphalt surface layer, thereby causing or accelerating the destruction of the pavement. How to reduce the stiffness of cement-stabilized macadam and improve its crack resistance has become an important issue. According to research results at home and abroad, adding emulsified asphalt to cement stabilized aggrega...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E01C7/26E01C7/24
Inventor 黄煜镔张永兴姜文超何晖
Owner CHONGQING UNIV
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