Reinforced fiberglass geogrid for subgrade and manufacturing and construction methods thereof

A technology of glass fiber and geogrid, which is applied in the direction of roads, roads, road construction reinforcements, etc.

Active Publication Date: 2016-09-21
山东大庚工程材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Fiberglass geogrid surface coated with coating

Method used

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  • Reinforced fiberglass geogrid for subgrade and manufacturing and construction methods thereof
  • Reinforced fiberglass geogrid for subgrade and manufacturing and construction methods thereof
  • Reinforced fiberglass geogrid for subgrade and manufacturing and construction methods thereof

Examples

Experimental program
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Effect test

no. 1 example

[0063] Such as Figure 1-3 As shown, a glass fiber geogrid for reinforced roadbed, including polyester fiberglass cloth 1 and glass fiber geogrid; glass fiber geogrid is warp-knitted by warp yarn 2 and weft yarn 3 All are glass fiber bundles; an enlarged node 4 is set on the bottom surface of each intersection point of warp yarn 2 and weft yarn 3 . The surface of fiberglass geogrid is coated with a coating. The upper surface of the polyester fiberglass cloth 1 is provided with a number of clamping structures 6, the clamping structures 6 match the shape of the enlarged node 4, and the position of the clamping structure 6 corresponds to the position of the expanded node 4; the expanded node 4 is clamped on the Inside the clamping structure 6. The clamping structure 6 is molded by hot-melt adhesive and bonded to the surface of the polyester fiberglass cloth 1 . The glass fiber geogrid used for the reinforced roadbed is made into a product, and the glass fiber geogrid and the p...

no. 2 example

[0066] Such as Figure 4 As shown, the reinforced glass fiber geogrid for subgrade is slightly different from the clamping structure 6 and the enlarged node 4 in the first embodiment. In the conical base of the clamping structure 6, the size of the top of the base is slightly smaller than the size of the bottom of the enlarged node 4; the enlarged node 4 is made of elastic thermosetting material, which can enter the accommodating space after being squeezed and snapped into in the base.

no. 3 example

[0068] Such as Figure 5 As shown, the reinforced glass fiber geogrid for roadbed is slightly different from the clamping structure 6 and the enlarged node 4 in the first embodiment. The clamping structure 6 is also provided with a stop protrusion 7 to prevent Enlarging node 4 comes out of the base.

[0069] In the first to third embodiments, a hot melt adhesive layer 5 may be provided at the bottom of the enlarged node 4 .

[0070] Enlarging nodes 4 are also arranged on the top surface of the intersection point of each warp yarn 2 and weft yarn 3 .

[0071] The melting point of the hot melt adhesive of the clamping structure 6 and the hot melt adhesive layer 5 of the enlarged node 4 is 140° C. to 160° C.

[0072] The glass fiber geogrid for reinforced roadbed in the above-mentioned embodiment, its manufacturing method comprises the following steps:

[0073] Step 1. Prepare raw materials;

[0074] Step 2, making fiberglass geogrid;

[0075] Step 3, making polyester fiberg...

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Abstract

The invention discloses a reinforced fiberglass geogrid for a subgrade. The reinforced fiberglass geogrid comprises polyester fiberglass cloth (1) and a fiberglass geogrid body. The fiberglass geogrid body is formed through warp knitting, an expanding joint (4) is arranged on the bottom surface of each knitting point, and the surface of the fiberglass geogrid body is coated with a coating. The upper surface of the polyester fiberglass cloth (1) is provided with a plurality of clamping structures (6); the shapes of the clamping structures (6) are matched with those of the expanding joints (4), and the positions of the clamping structures (6) correspond to those of the expanding joints (4); and the expanding joints (4) are clamped in the clamping structures (6). In the manufacturing process of the reinforced fiberglass geogrid for the subgrade, the fiberglass geogrid body and the polyester fiberglass cloth (1) are matched only in a clamping mode and do not need to be fixed through bonding. During construction, the clamping structures are fused under the high temperature environment, the constraining force of the clamping structures to the fiberglass geogrid body is reduced, and shrinkage produced by the polyester fiberglass cloth (1) cannot drive shrinkage of the fiberglass geogrid body; and the fiberglass geogrid body and the polyester fiberglass cloth are tightly composited together at the construction site after being ground and cooled, and the mechanical properties of the fiberglass geogrid body can be fully played.

Description

technical field [0001] The invention relates to the field of composite materials for road traffic, in particular to a reinforced glass fiber geogrid for roadbeds. Background technique [0002] At present, most of the original urban roads in our country are concrete pavements, and most of them are close to or even exceed the design service life. At the same time, due to the sharp increase of road traffic volume, the increase of vehicle load and the construction of urban roads, the road surface structure is seriously damaged, which affects the use function of the road. [0003] Reflective cracks on the road surface are the main cause of damage to the pavement structure. The main reasons are: roadbed treatment uses hydraulic materials such as cement to stabilize aggregates or soil, and under the joint action of temperature and moisture volatilization, microscopic cracks will form in the roadbed. Cracks may eventually cause reflective cracks on the pavement; affected by climate...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E01C11/16B29C70/34
CPCB29C70/34E01C11/165
Inventor 王黎明
Owner 山东大庚工程材料科技有限公司
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