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Coral sand concrete pavement structure and construction method thereof

A technology of concrete pavement and construction method, which is applied to the coagulation pavement, roads, roads and other directions of on-site paving, can solve the problems of lack of fresh water in construction, and achieve the effects of low transportation cost, good deformation resistance, and good thermal insulation.

Inactive Publication Date: 2018-09-14
CHANGAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, on tropical coral islands thousands of miles away from the mainland, due to seawater erosion and other reasons, thousands of tons of coral sand are accumu

Method used

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  • Coral sand concrete pavement structure and construction method thereof
  • Coral sand concrete pavement structure and construction method thereof

Examples

Experimental program
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Embodiment 1

[0044] A construction method for a coral sand concrete pavement structure, comprising a cushion course (1), a subbase course (2), a base course (3), an anti-cracking course (4) and a surface course (5) laid sequentially on a soil foundation from bottom to top )(refer to figure 1 ), the specific operation steps are as follows:

[0045] Step 1: According to the design requirements of JTG D40-2011 "Code for Design of Highway Cement Concrete Pavement", excavate the subgrade or road cutting, clean up the surface of the soil base, such as weeds, Coke bottles and other garbage, and then level and compact it. The compaction degree should be greater than 95%.

[0046] Step 2, laying the cushion (1): Use natural coral sand, first use a road roller to compact the coral sand, because the coral sand will be slightly broken, so the road roller should be pressed 1-2 times more than normal to lay evenly Flat, laying thickness of 150mm, compaction degree greater than 95%; among them, under n...

Embodiment 2

[0052]A construction method for a coral sand concrete pavement structure, comprising a cushion course (1), a subbase course (2), a base course (3), an anti-cracking course (4) and a surface course (5) laid sequentially on a soil foundation from bottom to top ), the specific operation steps are as follows:

[0053] Step 1: According to the design requirements of JTG D40-2011 "Code for Design of Highway Cement Concrete Pavement", excavate the subgrade or road cutting, clean up the surface of the soil base, such as weeds, Coke bottles and other garbage, and then level and compact it. The compaction degree should be greater than 95%.

[0054] Step 2, laying the cushion (1): Use natural coral sand, first use a road roller to compact the coral sand, because the coral sand will be slightly broken, so the road roller should be pressed 1-2 times more than normal to lay evenly Flat, laying thickness of 100mm, compaction degree greater than 95%; of which, under normal circumstances, it ...

Embodiment 3

[0060] A construction method for a coral sand concrete pavement structure, comprising a cushion course (1), a subbase course (2), a base course (3), an anti-cracking course (4) and a surface course (5) laid sequentially on a soil foundation from bottom to top ), the specific operation steps are as follows:

[0061] Step 1: According to the design requirements of JTG D40-2011 "Code for Design of Highway Cement Concrete Pavement", excavate the subgrade or road cutting, clean up the surface of the soil base, such as weeds, Coke bottles and other garbage, and then level and compact it. The compaction degree should be greater than 95%.

[0062] Step 2, laying the cushion (1): Use natural coral sand, first use a road roller to compact the coral sand, because the coral sand will be slightly broken, so the road roller should be pressed 1-2 times more than normal to lay evenly Flat, laying thickness of 125mm, compaction greater than 95%; of which, under normal circumstances, it needs ...

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Abstract

The invention discloses a coral sand concrete pavement structure and a construction method thereof. The coral sand concrete pavement structure comprises a cushion layer, a subbase layer, a base layerand a surface layer which are laid in sequence from bottom to top on the surface of a soil base layer, wherein the raw material of the cushion layer is coral sand. The pavement structure mainly uses the coral sand as the main aggregate, and is laid by using a small amount of gravel, so that the effect of using local materials is achieved; the coral sand concrete pavement structure is low in cost,high in strength, good in water permeability and the sliding resistance, excellent in heat insulation performance and drainage effect, strong in waterproof function and high in anti-deformation ability; the construction method is simple, and the coral sand concrete pavement structure can be applied to construction of high-grade regional projects such as highways, airports and ports on islands as well as low-grade road projects such as sidewalks and rural roads.

Description

technical field [0001] The invention relates to the field of road engineering, in particular to a coral sand concrete pavement structure and a construction method thereof. Background technique [0002] With the development of the economy and the progress of the society, our country has shifted its perspective to the ocean and increased the development of marine resources. Construction projects on islands are more convenient for the development of marine resources. However, on tropical coral islands thousands of miles away from the mainland, due to seawater erosion and other reasons, thousands of tons of coral sand are accumulated on the islands, and there are no ordinary aggregates such as gravel and fine sand on the islands, and the construction is very difficult. Lack of fresh water. If the aggregate is transported from the inland, the construction cost will be increased, and the coral sand needs to be cleaned. Therefore, considering these circumstances, why not use local...

Claims

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Application Information

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IPC IPC(8): E01C7/32E01C7/14
CPCE01C7/142E01C7/32
Inventor 耿九光陈明远尚涛陈华鑫
Owner CHANGAN UNIV