PVC sheet pile used for retaining and protecting for foundation excavation and preparation method of sheet pile

A PVC board and composite technology, applied in the field of civil engineering, can solve the problems of high stiffness, low cost and high cost of sheet piles, and achieve the effects of high stiffness, good UV resistance and cost reduction.

Active Publication Date: 2018-04-06
扬州扬子新型建材科技有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In view of the defects in the prior art, the purpose of the present invention is to overcome the deficiencies in the above-mentioned prior art, provide a PVC sheet pile for foundation support and its preparation method, and solve the technical problems of high cost and low rigidity, The sheet pile prepared by the invention has high rigidity and low cost

Method used

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  • PVC sheet pile used for retaining and protecting for foundation excavation and preparation method of sheet pile
  • PVC sheet pile used for retaining and protecting for foundation excavation and preparation method of sheet pile
  • PVC sheet pile used for retaining and protecting for foundation excavation and preparation method of sheet pile

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] The raw material formula for preparing PVC sheet piles: 100 parts of PVC, 20 parts of calcium carbonate, 0.5 parts of stearic acid, 0.5 parts of polyethylene wax, 2 parts of CPE, 2 parts of MBS, 4 parts of Ca-Zn composite stabilizer.

[0023] The method for preparing PVC sheet piles is as follows:

[0024] (1) Mix the PVC matrix and the corresponding additives in a high-speed mixer, raise the temperature to 120°C, discharge the material into a jacketed water-cooled mixer, continue mixing until the temperature drops to 40°C, and discharge to the silo;

[0025] (2) Single-screw extrusion: Extrude the material in the silo through single-screw extrusion, vacuum shaping, water-cooling shaping, and cutting to obtain the final product. The extrusion molding control conditions are:

[0026] The temperature in Zone 1 is 190°C, the temperature in Zone 2 is 185°C, the temperature in Zone 3 is 185°C, the temperature in Zone 4 is 185°C, the temperature in Zone 5 is 180°C, the temper...

Embodiment 2

[0028] The raw material formula for preparing PVC sheet piles: 100 parts of PVC, 40 parts of calcium carbonate, 0.5 parts of stearic acid, 0.5 parts of polyethylene wax, 6 parts of CPE, 4 parts of MBS, 8 parts of Ca-Zn composite stabilizer, 2 parts of Etrolene .

[0029] The method for preparing PVC sheet piles is as follows:

[0030] (1) Mix the PVC matrix and the corresponding additives in a high-speed mixer, raise the temperature to 120°C, discharge the material into a jacketed water-cooled mixer, continue mixing until the temperature drops to 40°C, and discharge to the silo;

[0031] (2) Single-screw extrusion: Extrude the material in the silo through single-screw extrusion, vacuum shaping, water-cooling shaping, and cutting to obtain the final product. The extrusion molding control conditions are:

[0032] The temperature in Zone 1 is 200°C, the temperature in Zone 2 is 195°C, the temperature in Zone 3 is 195°C, the temperature in Zone 4 is 195°C, the temperature in Zone...

Embodiment 3

[0034] The raw material formula for preparing PVC sheet piles: 100 parts of PVC, 35 parts of calcium carbonate, 1.5 parts of stearic acid, 0.5 parts of polyethylene wax, 6 parts of CPE, 4 parts of MBS, 6 parts of Ca-Zn composite stabilizer, 1.5 parts of Etrolene .

[0035] The method for preparing PVC sheet piles is as follows:

[0036] (1) Mix the PVC matrix and corresponding additives in a high-speed mixer, raise the temperature to 130°C, discharge the material into a jacketed water-cooled mixer, continue mixing until the temperature drops to 45°C, and discharge to the silo;

[0037] (2) Single-screw extrusion: Extrude the material in the silo through single-screw extrusion, vacuum shaping, water-cooling shaping, and cutting to obtain the final product. The extrusion molding control conditions are:

[0038] The temperature in Zone 1 is 195°C, the temperature in Zone 2 is 190°C, the temperature in Zone 3 is 190°C, the temperature in Zone 4 is 190°C, the temperature in Zone 5...

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Abstract

The invention provides a PVC sheet pile used for retaining and protecting for foundation excavation and a preparation method of the sheet pile, and belongs to the technical field of civil engineering.The PVC sheet pile is prepared from the following raw materials in parts by mass: 100 parts of PVC, 20-40 parts of calcium carbonate, 1-2 parts of a lubricant, 4-10 parts of a flexibilizer, 4-8 partsof a Ca-Zn composite stabilizer, and 0-2 parts of a light stabilizer. The method provided by the invention improves the stiffness of the sheet pile, improves the ultraviolet aging resistance, and haslow costs.

Description

technical field [0001] The invention belongs to the technical field of civil engineering, in particular to a PVC sheet pile for foundation support and a preparation method thereof. Background technique [0002] my country is a country with frequent major natural disasters. The application of sheet piles has played a huge role in embankment and dam protection, resisting wind and sand, resisting mudslides, preventing floods, preventing landslides, preventing avalanches, etc., and can effectively reduce disasters to human beings. caused losses. [0003] Traditional sheet piles can be divided into wood sheet piles, steel sheet piles, and reinforced concrete sheet piles according to their materials. These materials all have certain defects. Wooden sheet piles have low strength and are easily degraded by microbial attack. Steel sheet piles and reinforced concrete sheet piles are expensive. , high cost of manpower and mechanical force, easy to corrode. [0004] In the prior art, t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L27/06C08L23/06C08L51/04C08L23/28C08K5/09C08K3/26
CPCC08K2003/265C08L27/06C08L2205/02C08L2205/035C08L23/06C08L51/04C08L23/286C08K5/09C08K3/26
Inventor 韦源源陈传丽顾荣田建良张旭刘俊亮张冲田万英
Owner 扬州扬子新型建材科技有限公司
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