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Process for applying silica powder and superfine slag powder to co-dope tubular pile

A technology of slag micropowder and silicon micropowder, which is used in the manufacture of tools, molds, and reinforcement molding, can solve the problems of low corrosion resistance of pipe piles, and achieve the effects of large weight, high safety, and increased strength

Inactive Publication Date: 2021-02-12
浙江飞英电力器材有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The present invention provides a process for compounding pipe piles using silicon micropowder and slag micropowder, aiming to solve the above-mentioned problem of low corrosion resistance of pipe piles

Method used

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  • Process for applying silica powder and superfine slag powder to co-dope tubular pile

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] The present invention provides a kind of technology that utilizes micro-silicon powder and slag micro-powder to re-mix pipe piles, comprising the following steps:

[0029] Step 1: Add 150 parts of crushed stone, select particle size of 5mm, 50 parts of finely ground sand, 70 parts of slag micropowder, and 100 parts of silicon micropowder, into the dryer for drying, set the temperature to 80°C, and dry 30 minutes, then take it out and add it to the mixer, add 50 parts of deionized water, 130 parts of cement, 10 parts of water reducer, stir at 90 rpm for 100 minutes to obtain mixture A;

[0030] Step 2: Dehydrate 50 parts of epoxy coal tar pitch, 60 parts of epoxy resin, and 30 parts of phenolic resin at 100°C and a vacuum of 1.2 PMa for 20 minutes, and cool to 30°C to obtain substance B;

[0031] Step 3: Add substance B to substance A, stir at a speed of 130 rpm for 30 minutes, make it fully stirred, mix evenly, and obtain substance D for later use;

[0032] Step 4: Sel...

Embodiment 2

[0042] The present invention provides a kind of technology that utilizes micro-silicon powder and slag micro-powder to re-mix pipe piles, comprising the following steps:

[0043] Step 1: Put 170 parts of crushed stone, select particle size of 10mm, 60 parts of finely ground sand, 80 parts of slag micropowder, and 120 parts of silicon micropowder, into the dryer for drying, set the temperature to 90°C, and dry 30 minutes, then take it out and add it to the mixer, add 50 parts of deionized water, 140 parts of cement, 10 parts of water reducer, and stir at 90 rpm for 30 minutes to obtain mixture A;

[0044] Step 2: Dehydrate 60 parts of epoxy coal tar pitch, 70 parts of epoxy resin, and 50 parts of phenolic resin at 120°C and a vacuum of 1.2PMa for 30 minutes, and cool to 30°C to obtain substance B;

[0045] Step 3: Add substance B to substance A, stir at a speed of 140 rpm for 30 minutes, make it fully stirred, mix evenly, and obtain substance D for later use;

[0046] Step 4: ...

Embodiment 3

[0056] The present invention provides a kind of technology that utilizes micro-silicon powder and slag micro-powder to re-mix pipe piles, comprising the following steps:

[0057] Step 1: Put 170 parts of crushed stone, select particle size of 10mm, 70 parts of finely ground sand, 80 parts of slag micropowder, and 120 parts of silicon micropowder into the dryer for drying, set the temperature to 100°C, and dry After 40 minutes, take it out and add it to a mixer, add 50 parts of deionized water, 140 parts of cement, and 10 parts of water reducer, and stir at a speed of 90 rpm for 30 minutes to obtain mixture A;

[0058] Step 2: Dehydrate 70 parts of epoxy coal tar pitch, 70 parts of epoxy resin, and 60 parts of phenolic resin at 120°C and a vacuum of 1.2PMa for 30 minutes, and cool to 30°C to obtain substance B;

[0059] Step 3: Add substance B to substance A, stir at a speed of 140 rpm for 30 minutes, make it fully stirred, mix evenly, and obtain substance D for later use;

[...

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Abstract

The invention discloses a process for applying silica powder and superfine slag powder to co-dope a tubular pile, and particularly relates to the technical field of concrete member processing. The process specifically comprises the following steps of step 1, adding 150-170 parts of gravels, 50-80 parts of ground fine sand, 70-100 parts of the superfine slag powder and 100-130 parts of the silica powder into a drying machine for drying, setting the temperature to be 80-100 DEG C, and drying for 30-50 minutes. By adding the silica powder and the superfine slag powder for co-doping, fine gaps areeffectively filled, so that the permeability resistance of concrete in the tubular pile becomes better. Therefore, corrosive media are not prone to intruding into the tubular pile, the corrosion resistance of the tubular pile is greatly improved, and the tubular pile can be used in a corrosive environment. The service life of the tubular pile is greatly prolonged, collapse of a building is avoided, and safety is extremely high.

Description

technical field [0001] The invention belongs to the technical field of concrete component processing, and in particular relates to a technology for compounding pipe piles using silica micropowder and slag micropowder. Background technique [0002] At the end of the 1960s, the Fengtai Bridge Factory of the Ministry of Railways began to produce pre-tensioned prestressed concrete pipe piles (referred to as PC pipe piles), which were mainly used for the foundation construction of railway bridge projects; in the 1970s, post-tensioned prestressed concrete pipes were developed and produced. pile. Since the 1970s, especially in the construction of Shanghai Baoshan Iron and Steel Works, a large number of steel pipe piles imported from Japan have been used, which are not only expensive but also poor in durability. In order to meet the needs of port construction and development, the Third Navigation Bureau of the Ministry of Communications introduced a full set of prestressed high-str...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B28B21/60B28B21/68B28B21/92B28B21/82C04B28/00
CPCB28B21/60B28B21/68B28B21/82B28B21/92C04B28/00C04B2103/302C04B14/02C04B14/06C04B18/141C04B14/064C04B22/002C04B24/36C04B24/281C04B24/302
Inventor 吴荣宋新民周锋郑斌
Owner 浙江飞英电力器材有限公司
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