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Preparation process of pre-stressed concrete pipe pile

A technology of concrete pipe pile and preparation process, which is applied in sheet pile wall, foundation structure engineering, construction, etc., can solve the problems of pipe pile strength, adverse effect on durability, poor impermeability performance of pipe pile, cracking and damage of matrix, etc. Improve impermeability and other properties, improve erosion resistance, improve the effect of impermeability

Inactive Publication Date: 2019-09-10
合肥天沃能源科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Salt-alkali erosion includes reactive species such as sulfate and chloride salts. It is a complex chemical and physical process that easily causes cracking and damage to the matrix, which in turn affects performance such as compressive strength. The pipe piles in the prior art have poor impermeability and are used in Saline-alkali areas have adverse effects on the strength and durability of pipe piles

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  • Preparation process of pre-stressed concrete pipe pile

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Embodiment 1

[0026] A kind of preparation technology of prestressed concrete pipe pile of the present embodiment comprises the following steps:

[0027] Step 1, weigh the following raw materials in parts by weight: 30 parts of Portland cement, 10 parts of ultrafine mineral powder, 55 parts of sand, 6 parts of tetramethyl quaternary ammonium salt, 5 parts of modified calcium-based rectorite, spirulina polysaccharide 1 part, 1 part of cubic alumina, 0.2 part of polypyrrole tube, 0.1 part of nano boron fiber, 60 parts of deionized water;

[0028] Step 2: Add the Portland cement, ultrafine mineral powder, and sand in step 1 into the high-speed mixer in sequence, the mixing speed is 100r / min, mix for 20min, and then add tetramethyl quaternary ammonium salt, modified calcium Base rectorite, spirulina polysaccharide, cubic aluminum oxide, polypyrrole tube, nano-boron fiber, the stirring speed is increased to 300r / min, and stirred for 40min to obtain the initial material;

[0029] Step 3: add dei...

Embodiment 2

[0039] A kind of preparation technology of prestressed concrete pipe pile of the present embodiment comprises the following steps:

[0040] Step 1, weigh the following raw materials by weight: 40 parts of Portland cement, 20 parts of ultrafine mineral powder, 65 parts of sand, 12 parts of tetramethyl quaternary ammonium salt, 10 parts of modified calcium-based rectorite, spirulina polysaccharide 3 parts, 2 parts of cubic alumina, 0.8 parts of polypyrrole tube, 0.7 parts of nano boron fiber, 100 parts of deionized water;

[0041] Step 2: Add the Portland cement, ultrafine mineral powder, and sand in step 1 into the high-speed mixer in turn, the mixing speed is 200r / min, mix for 30min, and then add tetramethyl quaternary ammonium salt, modified calcium Base rectorite, spirulina polysaccharide, cubic aluminum oxide, polypyrrole tube, nano-boron fiber, the stirring speed is increased to 400r / min, and stirred for 50min to obtain the initial material;

[0042] Step 3: add deionized...

Embodiment 3

[0052] A kind of preparation technology of prestressed concrete pipe pile of the present embodiment comprises the following steps:

[0053] Step 1, weigh the following raw materials by weight: 35 parts of Portland cement, 15 parts of superfine mineral powder, 55-65 parts of sand, 9 parts of tetramethyl quaternary ammonium salt, 7.5 parts of modified calcium-based rectorite, spiral 1 part of algae polysaccharide, 1.5 parts of cubic alumina, 0.5 part of polypyrrole tube, 0.4 part of nano boron fiber, 80 parts of deionized water;

[0054] Step 2: Add Portland cement, ultra-fine mineral powder, and sand in step 1 into the high-speed mixer in sequence, the mixing speed is 150r / min, mix for 25min, and then add tetramethyl quaternary ammonium salt, modified calcium Base rectorite, spirulina polysaccharide, cubic aluminum oxide, polypyrrole tube, nano-boron fiber, stirring speed increased to 350r / min, stirring for 45min, to obtain the initial material;

[0055] Step 3, add deionized ...

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Abstract

The invention discloses a preparation process of a pre-stressed concrete pipe pile. The process comprises the following steps: step one, weighing the following raw materials in parts by weight: 30-40parts of Portland cement, 10-20 parts of ultrafine mineral powder, 55-65 parts of sand, 6-12 parts of a tetramethyl quaternary ammonium salt, 5-10 parts of modified calcium-based rectorite, 1-3 partsof spirulina polysaccharide, 1-2 parts of cubic alumina, 0.2-0.8 part of polypyrrole tube, 0.1-0.7 part of nano boron fiber, and 60-100 parts of deionized water. The basalt fiber is applied in the technical field of concrete, the fiber is blended into micro cracks and voids of a matrix, continuity of a material can be improved, and concrete can be bonded, so that water migration is affected, impermeability is improved, and the added tetramethyl quaternary ammonium salt non-air-entraining small molecule can be adsorbed on raw materials such as the basalt fiber.

Description

technical field [0001] The invention relates to the technical field of concrete pipe piles, in particular to a preparation process of prestressed concrete pipe piles. Background technique [0002] With the continuous increase of investment in infrastructure construction in my country, the pipe pile industry has developed rapidly in recent years. Prestressed concrete pipe piles can be divided into post-tensioned prestressed pipe piles and pre-tensioned prestressed pipe piles; Prestressed pipe pile is a hollow cylindrical slender concrete prefabricated component made by pretensioning prestressing process and centrifugal forming method. It is mainly composed of cylindrical pile body, end plate and steel ferrule. Concrete strength grade or effective precompression stress is divided into prestressed concrete pipe piles and prestressed high-strength concrete pipe piles. The prestressed concrete pipe pile is code-named PC, the prestressed high-strength concrete pipe pile is code-nam...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/04C04B20/02E02D5/58E02D5/30C04B14/10C04B111/20
CPCC04B20/023C04B28/04C04B2111/20C04B2201/52E02D5/30E02D5/58C04B18/141C04B14/06C04B24/12C04B14/10C04B24/38C04B14/303C04B14/48C04B16/04C04B14/4656
Inventor 王多春孙路生葛兴连李强
Owner 合肥天沃能源科技有限公司
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