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Method for producing glass and plastic composite geogrid

A production method and composite geotechnical technology, applied in household components, applications, household appliances, etc., can solve the problems of limited engineering use range, poor interlocking ability of aggregates, poor chemical erosion, etc., to resist biological erosion and climate change, Effect of increasing tear strength and improving coefficient of friction

Inactive Publication Date: 2011-06-01
TAIAN ROAD ENG MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008]3. Poor resistance to acid, alkali and salt chemical corrosion;
[0009] Poor interlocking ability of aggregates (due to small grid nodes), resulting in reduced friction, so the range of engineering use is limited

Method used

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  • Method for producing glass and plastic composite geogrid
  • Method for producing glass and plastic composite geogrid
  • Method for producing glass and plastic composite geogrid

Examples

Experimental program
Comparison scheme
Effect test

specific Embodiment approach 1

[0053] Include the following steps:

[0054] a. Mix raw materials: high-density polyethylene and additives, the ratio is 2% carbon black, 3% defoamer;

[0055] b. Pass the raw materials through the extruder, the temperature of the extruder is 180°C; the glass fiber yarn is mixed by guiding co-extrusion coating, and the temperature of the co-extrusion coating mixing head is 210 °C;

[0056] c. Form a strip blank through a mold, and the mold temperature is 200°C;

[0057] d. Stretch the strip blank at 70°C; the stretching ratio is 5 times;

[0058] e. Knurling process, knurling temperature 60°C

[0059] f, counting meters into a plate;

[0060] g. Horizontal strips and longitudinal strips are fixed and pulled by steps to form a geogrid network;

[0061] h, Meter counting and winding.

specific Embodiment approach 2

[0063] A method for producing a glass-plastic composite geogrid, comprising the following steps:

[0064] a. Mix raw materials: high-density polyethylene and additives, the ratio is 4% carbon black, 3% defoamer;

[0065] b. Pass the raw materials through the extruder, the temperature of the extruder is 230°C; the glass fiber yarn is mixed by guiding co-extrusion coating, and the temperature of the co-extrusion coating mixing head is 230 °C;

[0066] c. Form a strip blank through a mold, and the mold temperature is 220°C;

[0067] d. Stretch the strip blank at 80°C; the stretching ratio is 9 times;

[0068] e. Knurling process, knurling temperature 70°C

[0069] f, counting meters into a plate;

[0070] g. Horizontal strips and longitudinal strips are fixed step-by-step traction to form a geogrid network;

[0071] h, Meter counting and winding.

[0072]

specific Embodiment approach 3

[0074] A method for producing a glass-plastic composite geogrid, comprising the following steps:

[0075] a. Mix raw materials: high-density polyethylene and additives, the ratio is 8% carbon black, 3% defoamer;

[0076] b. Pass the raw materials through the extruder, the temperature of the extruder is 200°C; the glass fiber yarn is mixed by guiding co-extrusion coating, and the temperature of the co-extrusion coating mixing head is 215 °C;

[0077] c. Form a strip blank through a mold, and the mold temperature is 215°C;

[0078] d. Stretch the strip blank at 75°C; the stretching ratio is 8 times;

[0079] e. Knurling process, knurling temperature 65°C

[0080] f, counting meters into a plate;

[0081] g. Horizontal strips and longitudinal strips are fixed step-by-step traction to form a geogrid network;

[0082] h, Meter counting and winding.

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Abstract

The invention discloses a method for producing a glass and plastic composite geogrid, which is characterized by comprising the following steps of: a, mixing high-density polyethylene and an additive serving as raw materials; b, coating and mixing the raw materials through an extruder and glass fiber yarns by guide co-extrusion; c, forming a strip blank through a mold; d, stretching the strip blank; e, metering and coiling; f, fixing horizontal strips and vertical strips and performing stepping traction to form a geogrid network; and g, metering and winding. Compared with the prior art, the production method has the advantages of high strength, high toughness, high corrosion resistance and the like.

Description

technical field [0001] The invention relates to a geogrid, especially a production method of the geogrid covered with glass fiber. Background technique [0002] At present, there are various kinds of soil reinforcement or reinforcement materials (commonly known as geotechnical materials) used in geotechnical engineering construction in China, and their performance characteristics and adaptability to the environment are different. Such as: uniaxially stretched plastic geogrid, biaxially stretched plastic geogrid, three-way stretched plastic geogrid, steel-plastic composite geogrid, etc. [0003] Plastic tensile grid is easily affected by the physical and chemical properties of plastic raw materials, its strength is reduced, and its elongation at break is higher than 10%; its creep resistance is poor, its thermal stability is poor, and it is easy to cause engineering cracks and fractures, resulting in engineering failure. , causing losses. [0004] The reinforcing material...

Claims

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Application Information

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IPC IPC(8): B29C69/00B29C47/92B29C55/02B29C59/00B29L31/10B29K23/00B29C48/92
CPCB29C48/92B29C2948/92704B29C2948/92895
Inventor 陆诗德梁训美王继法
Owner TAIAN ROAD ENG MATERIALS
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