Lubricating agent for concrete pump pipeline

Abstract

The invention discloses a lubricating agent for a concrete pump pipeline. The lubricating agent comprises, in weight percent, 12%-14.5% of polyacrylamide, 7.3%-9.7% of retarders, 15.3%-19.8% of hydroxyethyl methyl cellulose, 4.3%-6.5% of sodium coconut oil alcohol sulfate, 5.5%-7% of pentane asphaltene and the balance water. The sodium coconut oil alcohol sulfate serves as a hydrophilic surface active agent. According to the lubricating agent, the flow velocity of concrete can be greatly improved, and concrete pumping efficiency is higher.

Description

technical field [0001] The invention belongs to the technical field of concrete pumping, in particular to a pipeline lubricant for concrete pumping. Background technique [0002] When concrete is poured, pumps are usually used for pumping. When the concrete flows in the pipeline, the contact friction with the pipeline is relatively large, which makes the fluidity of the concrete in the pump pipeline poor, and it is difficult to quickly pump it to the predetermined position. There is a large amount of concrete hanging on the wall, which further affects the speed and smoothness of concrete pumping. Therefore, in practical engineering applications, the way of mortar moistening pipes is often used to make the concrete flow and pump faster in the pipes. The current lubricants are mainly composed of polyacrylamide, cellulose ether, and hydrophilic surfactants. , its proportion varies according to the various brands on the market, but they are all poor in the pumping lubrication o...

AI Technical Summary

Problems solved by technology

[0002] When concrete is poured, pumps are usually used for pumping. When the concrete flows in the pipeline, the contact friction with the pipeline is relatively large, which makes the fluidity of the concrete in the pump pipeline poor, and it is difficult to quickly pump it to the predetermined position. There is a large amount of concrete hanging on the wall, which further affects the speed and smoothness of concrete pumping

Therefore, in practical engineering applications, the way of mortar moistening pipes is often used to make the concrete flow and pump faster in the pipes. The current lubricants are mainly composed of polyacrylamide, cellulose ether, and hydrophilic surfactants. , its proportion varies according to the various brands on the market, but they are all poor in the pumping lubrication of concrete, and it is difficult to meet the increasing pumping demand, especially difficult to adapt to the higher and higher pumping positions construction needs

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