No-cutting-seam cement concrete pavement structure and construction method thereof

A cement concrete and concrete pavement technology, applied in the direction of roads, roads, pavement details, etc., can solve the problems of reducing the driving comfort of concrete pavement, wrong platform, mud accumulation, etc., to reduce maintenance and repair costs, ensure integrity, and improve driving The effect of comfort

Active Publication Date: 2013-09-04
TSINGHUA UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In addition, the existence of slits will cause the adjacent pavement slabs to suffer from diseases such as misalignment and mud accumulation, which greatly reduces the driving comfort of the concrete pavement

Method used

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  • No-cutting-seam cement concrete pavement structure and construction method thereof
  • No-cutting-seam cement concrete pavement structure and construction method thereof
  • No-cutting-seam cement concrete pavement structure and construction method thereof

Examples

Experimental program
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Embodiment

[0026] In this embodiment, the slab of cement concrete pavement 11 is 4m long, 2.85m wide, and 0.28m thick; the high-ductility fiber reinforced cement-based composite material 9 is 0.4m long (generally 10% of the length of the road slab), and 0.1m thick. And arranged along the width direction of the pavement. The strength label of ordinary concrete is C40, and the strength label of high ductility fiber reinforced cement-based composite material is C30, forming a difference in strength. The interface between the two materials is anchored by horizontal anchoring steel bars 3 and vertical anchoring steel bars 6. The horizontal anchoring steel bars are ribbed steel bars with a nominal diameter of 20mm. 7 is fixed on the foundation 12 and arranged along the seam center line. The top of the aluminum plate is 40mm higher than the foundation plane, and above it adopts brackets to arrange dowel bars (not shown in the figure) according to the traditional design. Horizontal anchoring r...

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Abstract

The invention discloses a no-cutting-seam cement concrete pavement structure and a construction method thereof, belonging to the technical field of traffic road construction. The no-cutting-seam cement concrete pavement structure is characterized in that an aluminium plate is fixed on a foundation at a cutting seam of a traditional concrete pavement, an induced joint is reserved in the aluminium plate, and high-ductility fiber reinforced cement-based composite material is poured on the aluminium plate, so that an induced joint structure is formed between two concrete pavements; the construction method comprises the following steps of: fixing the aluminium plate on the foundation, wherein the induced joint is reserved in the aluminium plate; arranging two anchor steel bar brackets on the two sides of the aluminium plate along the center line of the joint; fixing a mould onto a side formwork, wherein a rabbet is reserved in the mould; and firstly pouring common concrete according to a traditional pavement construction technology, and then pouring and plastering the high-ductility fiber reinforced cement-based composite material in a preformed groove after the mould is disassembled. The no-cutting-seam cement concrete pavement structure guarantees the integrity of pavement, improves the road driving comfort, effectively reduces the engineering cost, reduces the maintenance cost and reduces the traffic jam caused by maintenance.

Description

technical field [0001] The invention belongs to the technical field of traffic road construction, in particular to a jointless cement concrete pavement structure and a construction method thereof. Background technique [0002] Cement concrete pavement is widely used in highway construction at home and abroad, and it has the characteristics of high strength, high rigidity and good durability. The service life of concrete pavement is affected by multiple factors, including pavement design, construction quality, traffic conditions, and environmental conditions. These factors will affect the formation and development of cracks in concrete pavement, and the shrinkage and temperature deformation of concrete are the main factors leading to the formation of cracks. This is because the pavement slab has a larger exposed area than structural members such as beams and columns, making cracking caused by shrinkage and temperature changes more obvious. [0003] In order to avoid concret...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E01C11/04E01C11/06
Inventor 张君陈切顺陈崇哲王振波王文刚
Owner TSINGHUA UNIV
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