CN111705656A

CN111705656A - Steel bridge deck pavement layer

Info

Publication number: CN111705656A
Application number: CN202010636456.2A
Authority: CN
Inventors: 盛兴跃; 郝增恒; 李璐; 杨波; 徐建晖; 刘攀; 王民; 全弘彬; 张锋
Original assignee: CHONGQING ZHIXIANG PAVING TECHNOLOGY ENGINEERING CO LTD
Current assignee: CHONGQING ZHIXIANG PAVING TECHNOLOGY ENGINEERING CO LTD
Priority date: 2020-07-03
Filing date: 2020-07-03
Publication date: 2020-09-25
Anticipated expiration: 2040-07-03
Also published as: CN111705656B

Abstract

The invention provides a steel bridge deck pavement layer, which comprises a prefabricated module layer and an anti-slip layer arranged on the surface of the prefabricated module layer, and is characterized in that: the prefabricated module layer is fixedly adhered to the surface of the elastic transition layer, and the elastic transition layer has self-leveling property and the elastic recovery rate of not less than 95%. The steel bridge deck pavement layer provided by the invention is thin and light, and can greatly reduce the pavement dead load of the steel bridge deck; the steel bridge deck pavement layer provided by the invention can solve the problem that a steel bridge deck is not easy to pave, prevent the steel bridge deck pavement layer from deforming and falling off in the use process, and prevent the steel bridge deck pavement layer body from local cracking and sinking; the steel bridge deck pavement layer body has excellent durability and folding resistance.

Description

Steel bridge deck pavement layer

Technical Field

The invention belongs to the technical field of steel bridge deck pavement, and particularly relates to a steel bridge deck pavement layer.

Background

In the prior art: document CN210002255U provides a thin steel deck pavement structure, which is suitable for being laid on a bridge deck of a slow traffic system bridge, and comprises a concrete base layer, a waterproof layer and a pavement layer which are laid on the bridge deck in sequence, wherein the pavement layer comprises a primer, a gravel layer and an anti-fouling layer, the primer is laid on the surface of the waterproof layer, the gravel layer is laid on the surface of the primer, and the anti-fouling layer is laid on the surface of the gravel layer; document CN209584828U discloses a steel bridge deck pavement comprising: the bonding layer is arranged on the surface of the steel bridge deck; and the composite material layer is arranged on the upper surface of the bonding layer, the composite material layer is a polyvinyl alcohol fiber reinforced cement-based composite material layer, the composite material layer further comprises an anti-skid wear-resistant layer arranged on the upper surface of the composite material layer, and the thickness ratio of the bonding layer to the composite material layer to the anti-skid wear-resistant layer is 0.4: (10-100): (3-5). The paving layer of the steel bridge deck paving structure has the following defects: 1. the problem that the steel bridge deck is not easy to pave exists in the paving process; 2. the problem that the pavement layer body is easy to deform and fall off exists in the using process, and particularly after the pavement layer body is used for several years, the problem that a local area is cracked or even sunk also exists; 3. the pavement layer body has poor durability and folding resistance.

Disclosure of Invention

Aiming at the problems in the background art, the invention aims to provide a steel bridge deck pavement layer.

In order to achieve the above purpose, the present invention adopts the following technical solutions.

The utility model provides a steel bridge deck pavement layer, includes prefabricated module layer and sets up the skid resistant course on prefabricated module layer surface, its characterized in that: the prefabricated module layer is fixedly adhered to the surface of the elastic transition layer, and the elastic transition layer has self-leveling property and the elastic recovery rate of not less than 95%.

Preferably, the prefabricated module layer is a solid or hollow polymer prefabricated section layer.

Preferably, the polymer prefabricated section layer is a section layer prefabricated by using a thermoplastic resin, a thermosetting resin or a modified product thereof.

Preferably, the anti-slip layer is prepared by blending the reactive resin and aggregate with the particle size of 2-10 mm.

Preferably, the elastic transition layer has a compression ratio of not more than 4% and an elastic recovery of more than 99%.

Preferably, the elastic transition layer is prepared by blending reaction type resin and filler with the particle size of less than 5 mm.

Preferably, the thickness of the elastic transition layer is 2-20mm, the thickness of the prefabricated module layer is 10-50mm, and the thickness of the anti-sliding layer is 2-20 mm.

Has the advantages that: the steel bridge deck pavement layer provided by the invention is thin and light, and can greatly reduce the pavement dead load of the steel bridge deck; the steel bridge deck pavement layer provided by the invention can solve the problem that a steel bridge deck is not easy to pave, prevent the steel bridge deck pavement layer from deforming and falling off in the use process, and prevent the steel bridge deck pavement layer body from local cracking and sinking; the steel bridge deck pavement layer body has excellent durability and folding resistance.

Drawings

FIG. 1 is a schematic illustration of a steel deck pavement layer according to example 1 of the present invention;

FIG. 2 is a schematic view of a steel deck pavement layer according to example 2 of the present invention.

Detailed Description

The technical solutions of the present invention are described clearly and completely below, and the described embodiments are only a part of embodiments of the present invention, not all embodiments. It is pointed out that the following examples are not to be construed as limiting the scope of the invention, and that those skilled in the art will be able to make numerous insubstantial modifications and adaptations in view of the teachings of the present invention.

Example 1

A steel bridge deck pavement layer is shown in figure 1 and comprises a prefabricated module layer and an anti-slip layer arranged on the surface of the prefabricated module layer, wherein the prefabricated module layer is adhered to the surface of an elastic transition layer in a sticking mode, and the elastic transition layer has self-leveling performance and the elastic recovery rate of the elastic transition layer is not less than 98%. The elastic transition layer is prepared by blending epoxy modified polyurethane and a filler (light calcium carbonate: hollow microspheres: fumed silica 70: 25:15, the ratio is a mass ratio) with the particle size of less than 5mm, and the powder-to-gel ratio in the epoxy modified polyurethane is as follows: the thickness of the prepared elastic transition layer is 10mm, the compression ratio of the elastic transition layer is not more than 4%, and the elastic recovery rate is more than 99%; the prefabricated module layer is a hollow section layer prefabricated by polyarylene sulfide modified resin, the thickness of the prefabricated module layer is 30mm, and the hollow rate is 50%; the anti-slip layer is a blend of polyurethane modified epoxy resin and aggregate with the particle size of 2-10mm, and the aggregate is iron steel sand: emery: rubber powder is 2: 2: 1 (mass ratio), and the thickness thereof was 5 mm.

During construction, the steel bridge deck (steel plate) is subjected to rust removal treatment to meet the requirements of cleanness and roughness, then an anticorrosive layer is sprayed, after the anticorrosive layer is completely dried, the uniformly mixed epoxy modified polyurethane and filler are laid on the surface of the anticorrosive layer, the elastic transition layer is formed after the anticorrosive layer is automatically leveled, after the surface of the elastic transition layer is dried, the prefabricated module layer is directly assembled on site, after the assembly of the prefabricated module layer is completed, the resin binder adopted by the anti-sliding layer is sprayed, and then the anti-sliding layer is laid.

Example 2

A steel bridge deck pavement layer is shown in figure 2 and comprises a prefabricated module layer and an anti-slip layer arranged on the surface of the prefabricated module layer, wherein the prefabricated module layer is adhered to the surface of an elastic transition layer in a sticking mode, and the elastic transition layer has self-leveling performance and the elastic recovery rate of the elastic transition layer is not less than 98%. The elastic transition layer is prepared by blending epoxy modified polyurethane and a filler (kaolin: hollow microsphere: fumed silica 65: 30:10) with the particle size of less than 5mm, wherein the powder-to-gel ratio in the epoxy modified polyurethane is as follows: the thickness of the prepared elastic transition layer is 15mm, the compression ratio of the elastic transition layer is not more than 4%, and the elastic recovery rate is more than 99%; (ii) a The prefabricated module layer is a hollow profile layer prefabricated by modified ASA (graft copolymer of acrylate rubber, acrylonitrile and styrene), the thickness of the prefabricated module layer is 40mm, and the hollow rate is 30%; the anti-slip layer is a blend of modified methacrylic resin and aggregate with the particle size of 2-10mm, and the aggregate is iron steel sand: emery: rubber powder is 2: 2: 1 (mass ratio), and the thickness thereof was 10 mm.

Example 3

The steel bridge deck pavement layer comprises a prefabricated module layer and an anti-slip layer arranged on the surface of the prefabricated module layer, wherein the prefabricated module layer is adhered to the surface of an elastic transition layer, and the elastic transition layer has self-leveling performance and the elastic recovery rate of the elastic transition layer is not less than 95%. The elastic transition layer is prepared by blending epoxy modified polyurethane and a filler (light argil, hollow microspheres and fumed silica 60: 10:5) with the particle size of less than 5mm, wherein the powder-to-gel ratio in the epoxy modified polyurethane is as follows: the thickness of the prepared elastic transition layer is 12mm, the compression ratio of the elastic transition layer is not more than 4%, and the elastic recovery rate is more than 99%; the prefabricated module layer is a profile layer prefabricated by ASA, PA and PVC alloy, and the thickness of the prefabricated module layer is 30 mm; the anti-slip layer is a blend of polyurethane modified epoxy resin and aggregate with the particle size of 2-10mm, and the aggregate is iron steel sand: emery: rubber powder is 2: 2: 1 (mass ratio), and the thickness thereof was 15 mm.

Example 4

A steel bridge deck pavement layer is disclosed in reference to example 1, and is different from example 1 in that: the thickness of the elastic transition layer is 20mm, the thickness of the prefabricated module layer is 50mm, and the thickness of the anti-sliding layer is 3 mm.

Example 5

A steel deck pavement, according to example 3, which is different from example 3 in that: the thickness of the elastic transition layer is 5mm, the thickness of the prefabricated module layer is 20mm, and the thickness of the anti-sliding layer is 20 mm.

Examples 6 to 10

A steel bridge deck pavement layer is respectively referred to examples 1 to 10, and the steel bridge deck pavement layer is different from the steel bridge deck pavement layer in each example in that: the elastic transition layer has self-leveling property, the elastic recovery rate of the elastic transition layer is not less than 95%, and the compression ratio of the elastic transition layer is not more than 4%.

In other embodiments of the invention, the filler component of the resilient transition layer may be in the range of "precipitated calcium carbonate/kaolin clay: hollow microbeads: fumed silica 60-80: the reasonable selection is carried out in the range of 10-35: 5-20'.

The steel deck pavement of each of the foregoing examples was subjected to a durability test, and the results are shown in table 1 below.

TABLE 1 test results for examples 1-5

Test items	Example 1	Example 2	Example 3	Example 4	Example 5
						Drawing strength/MPa of steel plate at 25 DEG C	2.72	2.88	2.30	2.84	3.65
Shear strength/MPa of steel plate at 25 DEG C	3.09	3.34	2.49	3.15	3.03
						60 ℃ and the drawing strength/MPa of the steel plate	1.70	1.95	1.20	1.92	1.61
Shear strength/MPa of 60 ℃ to steel plate	1.78	1.79	1.08	1.83	1.66
						Five point bending fatigue life/ten thousand times	>200	>200	>200	>200	>200

Claims

1. The utility model provides a steel bridge deck pavement layer, includes prefabricated module layer and sets up the skid resistant course on prefabricated module layer surface, its characterized in that: the prefabricated module layer is fixedly adhered to the surface of the elastic transition layer, and the elastic transition layer has self-leveling property and the elastic recovery rate of not less than 95%.

2. The steel deck pavement according to claim 1, wherein: the prefabricated module layer adopts a solid or hollow high-molecular prefabricated section layer.

3. The steel deck pavement according to claim 2, wherein: the high-molecular prefabricated section layer is a section layer prefabricated by adopting thermoplastic resin or thermosetting resin or a modified substance thereof.

4. The steel deck pavement according to claim 3, wherein: the anti-slip layer is prepared by blending reaction type resin and aggregate with the particle size of 2-10 mm.

5. The steel deck pavement according to claim 4, wherein: the compression ratio of the elastic transition layer is not more than 4%, and the elastic recovery rate is more than 99%.

6. The steel deck pavement according to claim 5, wherein: the elastic transition layer is prepared by blending reaction type resin and filler with the particle size of less than 5 mm.

7. The transition layer of the steel deck pavement structure according to any one of claims 1 to 4, wherein: the thickness of the elastic transition layer is 2-20mm, the thickness of the prefabricated module layer is 10-50mm, and the thickness of the anti-sliding layer is 2-20 mm.

8. The steel deck pavement according to any one of claims 1 to 3, wherein: the compression ratio of the elastic transition layer is not more than 4%, and the elastic recovery rate is more than 99%.