CN101050619A

CN101050619A - Constructing method for cement concrete road surface

Info

Publication number: CN101050619A
Application number: CN 200610031457
Authority: CN
Inventors: 吴方伯
Original assignee: Individual
Current assignee: Individual
Priority date: 2006-04-04
Filing date: 2006-04-04
Publication date: 2007-10-10

Abstract

The present invention discloses a cement concrete pavement construction method. Said method is characterized by that on the surface of road base course on layer or several layers of prestressed reinforced concrete core rods can be laid, then the cement concrete pavement layer can be directly poured.

Description

Constructing method for cement concrete road surface

Technical field:

The present invention relates to construction techniques, specifically refer to a kind of constructing method for cement concrete road surface.

Background technology:

Existing constructing method for cement concrete road surface, normally directly lay cement concrete pavement on the roadbase surface, because concrete tensile strength is low, under load action and temperature shrinkage stress effect, be easy to cracking, influence the normal use of rigid pavement, cause cement concrete pavement short application life, maintenance cost improves.Concrete structure cracking resistance technology commonly used now is to increase quantity of reinforcement and adopt prestressed concrete, increases the width that quantity of reinforcement can strengthen the concrete structure anti-crack ability and reduce the crack, but this method, workload is big, amount of reinforcement increases the cost height; The prestressed concrete effect of prestressed is good, but the site operation difficulty is big.

Summary of the invention:

The object of the present invention is to provide a kind of amount of reinforcement few, reduce difficulty of construction, and make the constructing method for cement concrete road surface of cement concrete pavement long service life.

The object of the present invention is achieved like this, this constructing method for cement concrete road surface: lay one or more layers prestressed reinforced concrete plug on the roadbase surface, direct again joints cement concrete pavement layer.

One or more layers prestressed reinforced concrete plug is laid on described roadbase surface, can be with the independent vertical or horizontal arrangement of plug; Also can two-way multilayer criss-cross arrangement.

Because this constructing method for cement concrete road surface has adopted the step of laying one or more layers prestressed reinforced concrete plug on the roadbase surface, make prestressed reinforced concrete plug and the cast-in-place concrete of building form integral body, form the cracking resistance cement concrete pavement layer.Be subjected to load action and temperature shrinkage stress is done the time spent, prestressed reinforced concrete plug and cast-in-placely build the effect that concrete is resisted stress jointly, the prestressed reinforced concrete plug has higher anti-crack ability, can effectively reduce the width of cement concrete cracks and the spacing in crack, improve the cracking resistance of concrete structure, prolong cement concrete pavement application life, and amount of reinforcement is few, cost, cost are low, reduce difficulty of construction.

Description of drawings:

The double-deck unidirectional prestressed bar cement concrete pavement structure schematic diagram of Fig. 1

The two-way multilayer prestressed bar of Fig. 2 criss-cross arrangement cement concrete pavement structure schematic diagram

Fig. 3 rectangle prestressed reinforced concrete mandrel structure schematic diagram

Fig. 4 has groove rectangle prestressed reinforced concrete mandrel structure schematic diagram

Fig. 5 has fin rectangle prestressed reinforced concrete mandrel structure schematic diagram

Fig. 6 has another embodiment of fin rectangle prestressed reinforced concrete plug

Fig. 7 has another embodiment of groove rectangle prestressed reinforced concrete plug

Fig. 8 has the circular prestressed reinforced concrete mandrel structure of groove schematic diagram

The specific embodiment:

With reference to figure 1---Fig. 8, this constructing method for cement concrete road surface: lay one or more layers prestressed reinforced concrete plug 2 on roadbase 1 surface, direct again joints cement concrete pavement layer.During construction, according to the needs of pavement strength, also can lay one deck prestressed reinforced concrete plug 2 on base course 1 surface, build one deck cement concrete pavement layer, on cement concrete pavement layer, re-lay one deck prestressed reinforced concrete plug 2, build one deck cement concrete pavement layer again.One or more layers prestressed reinforced concrete plug 2 is laid on the roadbase surface, can be with plug 2 independent vertical or horizontal arrangements; Also can two-way multilayer criss-cross arrangement.

Described prestressed reinforced concrete plug cross section has rectangle, circle, polygon.

Described prestressed reinforced concrete mandrel surface has groove 5, fin 6, and groove 5, fin 6 can strengthen prestressed reinforced concrete plug 2 and build concrete adhesion with cast-in-place.

Prestressed reinforced concrete plug 2 is formed integral body with the cast-in-place concrete 3 of building, and forms the cracking resistance cement concrete pavement layer.Be subjected to load action and temperature shrinkage stress is done the time spent, prestressed reinforced concrete plug 2 and cast-in-place effect of building concrete 3 common opposing stress, prestressed reinforced concrete plug 2 is made at the workshop, with one or more prestressed reinforcement 4 stretch-draw, concreting is made prestressed reinforced concrete plug 2 again, plug 2 amount of reinforcement are few, cost, cost are low, has higher anti-crack ability, can effectively reduce the width in crack, rigid pavement and the spacing in crack, improve the rigid pavement cracking resistance.

This constructing method for cement concrete road surface can be widely used in the construction on road, square, parking lot, bridge pavement, basement floor.

Claims

1, constructing method for cement concrete road surface, its feature is being: lay one or more layers prestressed reinforced concrete plug on the base course surface, direct again joints cement concrete pavement layer.

2, constructing method for cement concrete road surface according to claim 1 is characterized in that: one or more layers prestressed reinforced concrete plug is laid on described base course surface, can be with the independent vertical or horizontal arrangement of plug; Also can two-way multilayer criss-cross arrangement.