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Preparation method of composite strengthening anti-cracking cloth

A composite reinforcement and anti-cracking technology, which is applied in the direction of road building reinforcements, textiles, papermaking, braids, etc., can solve the problem that the combination performance of the grid and the road surface is not very ideal, it cannot effectively prevent water penetration, and it cannot be continuously waterproofed Layer and other problems, to prevent reflective cracks and water damage, improve the overall strength value, prevent and delay other cracks

Inactive Publication Date: 2012-05-09
南京金路土工复合材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, it cannot provide a continuous waterproof layer for the pavement, and cannot effectively prevent water penetration; at the same time, the combination performance of the grille and the pavement is not very ideal, and it is prone to passing diseases.

Method used

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  • Preparation method of composite strengthening anti-cracking cloth
  • Preparation method of composite strengthening anti-cracking cloth

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0049] Such as figure 1 As shown, the composite reinforced anti-crack cloth is composed of a geotextile 1 and a glass fiber geogrid 2 through warp knitting, the geotextile 1 is a glass fiber polyester anti-crack cloth, and the glass fiber polyester anti-crack cloth The gram weight is 120g / m 2 , the thickness is 0.66~0.68mm, the mass ratio of polyester fiber and glass fiber in the glass fiber polyester anti-crack cloth is 30:70, the density of warp yarn 3 of glass fiber geogrid is 2 / mesh, weft yarn 4 The density is 2 / mesh. The linear density of the binding yarn used in weaving is 220dtex, the distance per circle is 4.23mm, and the strength of warp yarn 3 and weft yarn 4 is 0.41N / tex. The knitting is a warp knitting method.

[0050] Tested according to the standard "SL / T-235-1999", the weight per unit area of ​​the obtained composite reinforced anti-cracking cloth is 375g / m 2 , the longitudinal breaking strength reaches 53KN / m, the transverse breaking strength reaches 51KN / m...

Embodiment 2

[0052] The composite reinforced anti-cracking cloth described in Example 1 was dipped in the modified asphalt solution in which No. AH-70 road petroleum asphalt and water were uniformly mixed in a mass ratio of 1:20, and then dried in an oven. The oven is divided into four areas: A, B, C, and D, and the temperatures are set at 100°C, 105°C, 120°C, and 130°C, respectively. Before impregnation, the composite reinforced anti-cracking cloth should be smooth and wrinkle-free.

[0053] According to the standard "SL / T-235-1999", the mass per unit area of ​​the composite reinforced anti-cracking cloth obtained after impregnation and drying is 390-400g / m 2 , the longitudinal breaking strength reaches 55-58KN / m, the transverse breaking strength reaches 53-55KN / m; the longitudinal and transverse breaking elongation is 1.9-2.7%, the longitudinal and transverse trapezoidal tear strength is 1000N, and the CBR bursting strength reaches 3.5KN. This product has been used in Quanxia Expressway...

Embodiment 3

[0055] The composite reinforced anti-crack cloth is composed of geotextile 1 and glass fiber geogrid 2 through warp knitting, the geotextile 1 is a glass fiber polyester anti-crack cloth, and the weight of the glass fiber polyester anti-crack cloth is 160g / m 2 , the thickness is 1.0~1.08mm, the mass ratio of polyester fiber and glass fiber in the glass fiber polyester anti-crack cloth is 25:75, the density of warp yarn 3 of glass fiber geogrid is 2 / mesh, weft yarn 4 The density is 2 / mesh. The linear density of the binding yarn adopted during weaving is 170dtex, the distance per circle is 4.23mm, and the strength of warp yarn 3 and weft yarn 4 is 0.50N / tex. The knitting is a warp knitting method. The composite reinforced anti-crack cloth obtained by weaving is dipped in the modified asphalt solution mixed uniformly with AH-70 road petroleum asphalt and water at a mass ratio of 1:15, and then dried in an oven. The oven is divided into four areas: A, B, C, and D, and the tempe...

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Abstract

The invention relates to a preparation method of composite strengthening anti-cracking cloth. The composite strengthening anti-cracking cloth is compounded by knitting a geotextile and a glass-fiber geogrid, wherein the geotextile is glass-fiber polyester anti-cracking cloth with a gram weight of 120-160g / m<2> and a thickness of 0.66-1.08mm, and the adopted binding yarn has the linear density of 167-220dtex and warp or weft strength of 0.41-0.50N / tex in a knitting process. In the glass-fiber polyester anti-cracking cloth, the mass ratio of polyester fiber to glass fiber is 30:70-25:75. By improving the invention, the surface of the composite strengthening anti-cracking cloth is also provided with a dope layer. On the basis of the glass-fiber polyester anti-cracking cloth, the glass-fiber geogrid for a composite strengthening asphalt pavement is additionally arranged, and the composite strengthening anti-cracking cloth can not only prevent reflection cracks and water destroy, but also prevent and delay other cracks and increase the bearing capability of a road.

Description

technical field [0001] The invention relates to a preparation method of a composite reinforced anti-crack cloth. Background technique [0002] Glass fiber polyester anti-crack cloth is a non-woven fabric made of glass fiber mainly mixed with an appropriate amount of polyester fiber. It takes into account the strength of glass fiber and the flexibility of polyester fiber. It has good tensile and asphalt adsorption properties. It has good heat resistance and has high temperature stability when paving hot asphalt concrete. After rolling, the original glass fiber polyester anti-crack cloth makes the asphalt concrete and slurry seal tightly integrated into a whole through glass fiber polyester cloth At the same time, it plays a waterproof role, so that the water at the base will not penetrate through the cracks and the rain will not penetrate downwards. Its paving can also effectively improve the pressure concentration at the cracks, decompose the stress, increase the deformatio...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D06N3/00D04C1/02D04C1/06E01C11/16
Inventor 莫锦耀郭志广
Owner 南京金路土工复合材料有限公司
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