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Slump-prevention-type concrete pumping aid

A concrete pump, slump-preserving technology, applied in the field of slump-preserving concrete pumping agents, to achieve the effects of good slump-preserving performance, strong slump maintaining ability, workability and pumpability

Inactive Publication Date: 2015-01-07
SUZHOU CHENGHU CONCRETE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In view of the above-mentioned technical problems, the purpose of the present invention is to propose a kind of protection system that can solve the problem of rapid slump loss of concrete mixed with naphthalene series pumping agent. Slump Concrete Pumping Agent

Method used

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  • Slump-prevention-type concrete pumping aid
  • Slump-prevention-type concrete pumping aid
  • Slump-prevention-type concrete pumping aid

Examples

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Embodiment 1

[0011] A slump-retaining concrete pumping agent according to the present invention, comprising naphthalene or its homologue, aliphatic compound, sodium gluconate, carboxylic acid graft copolymer, sodium lauryl sulfate, formaldehyde cellulose, hydroxypropyl Methyl cellulose; wherein naphthalene or homologue accounts for 60% by weight; aliphatic compound accounts for 8% by weight; sodium gluconate accounts for 5% by weight; carboxylic acid graft copolymer accounts for The percentage is 5%; the percentage by weight of sodium lauryl sulfate is 3%; the percentage by weight of formaldehyde cellulose is 0.5%; the percentage by weight of hydroxypropyl methylcellulose is 0.5%, and the rest is water.

Embodiment 2

[0013] A slump-retaining concrete pumping agent according to the present invention, comprising naphthalene or its homologue, aliphatic compound, sodium gluconate, carboxylic acid graft copolymer, sodium lauryl sulfate, formaldehyde cellulose, hydroxypropyl Methyl cellulose; wherein naphthalene or homologue accounts for 80% by weight; aliphatic compound accounts for 6% by weight; sodium gluconate accounts for 2% by weight; carboxylic acid graft copolymer accounts for The percentage is 2%; the percentage by weight of sodium lauryl sulfate is 2%; the percentage by weight of formaldehyde cellulose is 0.2%; the percentage by weight of hydroxypropyl methylcellulose is 0.3%, and the rest is water.

[0014] Below is the performance index of embodiment 2 of the present invention:

[0015] 1. Homogeneity index of slump-preserving concrete pumping agent

[0016]

[0017] Note: The fluidity test of cement slurry is: 0.5% common naphthalene-based pumping agent + 0.5% slump-preserving p...

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Abstract

The invention discloses a slump-prevention-type concrete pumping aid, which comprises naphthalene or homolog thereof, aliphatic compounds, sodium gluconate, carboxylic acid grafted copolymers, lauryl sodium sulfate, formaldehyde cellulose, hydroxymethyl propyl cellulose, wherein the percentage by weight of the naphthalene or homolog thereof is 60%-80%; the percentage by weight of the aliphatic compounds is 6%-8%; the percentage by weight of sodium gluconate is 1%-5%; the percentage by weight of carboxylic acid grafted copolymers is 1%-5%; the percentage by weight of the lauryl sodium sulfate is 1%-3%, the percentage by weight of formaldehyde cellulose is 0.1%-0.5%, and the percentage by weight of the hydroxymethyl propyl cellulose is 0.1%-0.5% and the balance of water. According to the slump-prevention-type concrete pumping aid provided by the invention, on the basis of summarizing the common method of slump loss control, the carboxylic acid grafted copolymers are compounded into a naphthalene water reducer, and the slump-prevention-type concrete pumping aid has the characteristics of good dispersion property and high slump retaining capability, and solves the problem of rapid naphthalene doped pumping aid concrete slump loss.

Description

technical field [0001] The invention relates to a slump-preserving concrete pumping agent capable of solving the problem of rapid slump loss of concrete mixed with naphthalene series pumping agent. Background technique [0002] In concrete pumping and construction, the problem of rapid loss of concrete slump is often encountered, resulting in blocked pumps, difficult or impossible construction, prolonging the construction work time, and causing waste of manpower and material resources. Concrete companies and A fuse of conflicts in the construction party. Therefore, in the promotion of ready-mixed concrete, how to effectively control the loss of concrete slump is a major issue that must be solved in the further promotion and application of pumping agents and the development of new concrete technologies. The slump loss of the existing concrete mixed with naphthalene series pumping agent is fast. Contents of the invention [0003] In view of the above-mentioned technical...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B24/38
Inventor 王凤丽王国强
Owner SUZHOU CHENGHU CONCRETE CO LTD
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