Concrete pumping agent

Abstract

The invention belongs to the technical field of concrete admixture and particularly relates to a concrete pumping agent. The concrete pumping agent is prepared from raw materials in parts by weight as follows: 30-60 parts of a polycarboxylate superplasticizer, 15-31 parts of alkyl glycoside, 10-22 parts of tea saponin, 5-18 parts of a water liquid from a sugar factory, 6-16 parts of sodium lignin sulfonate, 4-16 parts of borax, 1-6 parts of polytetrafluoroethylene and 40-60 parts of water. The concrete pumping agent has good flowability, the durability of concrete is remarkably improved, and the problem of faster loss of concrete slump is well solved.

Description

technical field [0001] The invention belongs to the technical field of concrete admixtures, in particular to a concrete pumping agent. Background technique [0002] At present, the general concrete is poured by pumping technology at the construction site. Therefore, the concrete needs to have good fluidity and pumpability. However, since the concrete in the mixing station is transported from the mixing station to the construction site by a concrete mixer truck, once Traffic jams or long distances, the time for mixing the concrete is too long, and the fluidity will be severely lost and cannot be pumped. The appearance of concrete pumping agent solves this problem. Concrete pumping agent is an admixture that can improve the pumping performance of concrete mixture, so that the concrete mixture can pass through the pipeline smoothly, without blocking, without segregation, and with good viscoplasticity. It is usually composed of water reducing agent , retarder, air-entraining a...

AI Technical Summary

Problems solved by technology

[0003] However, the existing pumping agents have the following disadvantages: poor cement adaptability, usually only suitable for a small number of cement varieties, poor fluidity, crystals and precipitation under low temperature conditions in winter, causing pipeline blockage, and cannot be used normally; at the same time, the quality is extremely poor Stable, fast loss of slump, due to the above technical problems in the use of concrete, seriously affect various concrete projects

At present, in order to meet the common needs of concrete performance and construction, the usual method is to add one or two functional admixtures and pumping agents to the concrete to form a mixture, which not only increases the difficulty of construction and production costs , and it is very easy to repeatedly add the same or similar components in several concrete admixtures, resulting in excessive or missing additions, etc., especially when encountering several concrete admixtures with poor or even incompatible compatibility When the admixture is added, it will reduce the effectiveness of the admixture, and the light result will cause concrete water leakage, segregation, hardening, reduce until the loss of working performance, so that it cannot be pumped, and the severe one will cause construction safety accidents and serious concrete quality accidents, thus endangering Building Safety Life