Tubular pile joint closing and grout stopping slurry as well as preparation method and application thereof

A technology of slurry and auxiliary materials, which is applied in the field of pipe pile joint slurry and its preparation, can solve the problems that straw rope or cotton rope cannot be directly buried, is not environmentally friendly, and cannot be used for other purposes, and achieves good results. Good operability, good slurry stop effect, and good anti-deformation ability

Active Publication Date: 2021-05-07
GUANGDONG SANHE PILE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Another disadvantage of using straw or cotton rope as a slurry stopper is that the cotton rope or straw rope is for one-time use, and the used straw or cotton rope cannot be directly buried (it needs special treatment before it can be landfilled), and cannot be used It is not friendly to the environment, especially cotton rope

Method used

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  • Tubular pile joint closing and grout stopping slurry as well as preparation method and application thereof
  • Tubular pile joint closing and grout stopping slurry as well as preparation method and application thereof
  • Tubular pile joint closing and grout stopping slurry as well as preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] In this example, a kind of slurry for jointing of pipe piles is prepared. The specific process is as follows: 63% by mass of fly ash, 1% of pregelatinized starch, and 0.1% of methyl hydroxypropyl cellulose ether (viscosity (20°C) is 100000mPa·s), 1% bentonite, 0.1% polypropylene fiber (about 9mm in length), 2.5% crushed rubber particles (40 mesh to 70 mesh) and the balance of water Stir and mix evenly to prepare the slurry for pipe pile seam stop.

Embodiment 2

[0039] This embodiment prepares a kind of slurry for jointing of pipe piles. The specific process is: the mass percentage is 70% of fly ash, 2% of pregelatinized starch, and 0.5% of methyl hydroxypropyl cellulose ether. (viscosity (20°C) is 100000mPa·s), 2% bentonite, 0.5% polypropylene fiber (about 12mm in length), 5% crushed rubber particles (40 mesh to 70 mesh) and the balance of water Stir and mix evenly to prepare the slurry for pipe pile seam stop.

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Abstract

The invention discloses tubular pile joint closing and grout stopping slurry as well as a preparation method and application thereof, and belongs to the technical field of tubular piles. The tubular pile joint closing and grout stopping slurry has little elasticity, can only fill gaps after being clamped by a mold, cannot cause mold deformation caused by the fact that the gaps are jacked up, and is good in deformation resistance; and the slurry has certain viscosity, so that the slurry is not easily thrown out of gaps during centrifugation, and a good slurry stopping effect is achieved. And meanwhile, too large viscosity cannot be generated on the mold, and the slurry can form blocks after being evaporated to dryness, so that the slurry can be smoothly removed during demolding and cleaning, and the defects that the working environment is influenced due to flying dust generated when the powdery slurry is removed are overcome.

Description

technical field [0001] The invention belongs to the technical field of pipe piles, and in particular relates to a pipe pile seam stop grout and its preparation method and application. Background technique [0002] At present, in the production of pipe piles, defective products caused by grout leakage at joints account for more than 50% or even more of the entire pipe pile defective products, which is the most troublesome problem in the pipe pile industry. Although I have tried many ways, it is still difficult to control effectively. After research, in the production process of pipe piles, the deformation of the mold is the most difficult to effectively avoid through the process operation method. Once the mold is deformed, it will easily produce different degrees of grout leakage. In order to reduce slurry leakage, workers can only pad more straw ropes or cotton ropes to block the gaps. As everyone knows, this action further exacerbated the deformation of the mold. Because...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/00C04B111/56
CPCC04B28/001C04B2111/56C04B18/08C04B16/0633C04B24/38C04B24/383C04B18/22Y02W30/91
Inventor 何国昌余晓文吴其群陆荣海陈杰成
Owner GUANGDONG SANHE PILE CO LTD
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