Concrete pumping pipe lubricating agent and preparation method and application method thereof

Abstract

The invention discloses a concrete pumping pipe lubricating agent and a preparation method and an application method thereof. The pipe lubricating agent comprises the following components by mass percentage: 30-43 percent of stearate, 15-20 percent of thickener, 17-25 percent of solid-state wax, 16-20 percent of polyethylene vinyl acetate, 0.5-1 percent of defoamer and 4-7 percent of calcium carbonate. The preparation method comprises two steps. The inner walls of delivery pipes of a pump, a ground pump and other related machines are lubricated prior to pumping of pre-mixed concrete, so as to improve the surface tension, viscosity, adhesion and lubricity and to prevent the pumps from being blocked. The preparation method and the application method of the concrete pumping pipe lubricating agent are simple, and the traditional pipe lubricating mortar can be replaced completely. The invention has the advantages that the pipe lubricating agent is non-toxic, odorless and easy to decompose, the performance of commercial concrete cannot be affected, and the cost is low.

Description

technical field [0001] The invention relates to a lubricant, in particular to a concrete pumping pipe moistening agent and its preparation method and application, belonging to the technical field of building materials. Background technique [0002] For a long time, before the ready-mixed concrete is pumped, the delivery pipeline must be moistened and lubricated with mortar to ensure the smooth flow of the delivery pipeline, and the mortar required by this method must be transported to the construction site by vehicle, so that every time a new The construction site and the mixing station must send concrete trucks to transport the mortar to the construction site, which will inevitably cause a lot of waste during transportation. Generally, each pump needs to replace 4 to 5 construction sites a day, and 8 to 10 vehicle trips are needed for the supporting mortar transport vehicles, which not only reduces the utilization rate of concrete transport vehicles, but also increases tran...

AI Technical Summary

Problems solved by technology

Because, in order to prevent the mixing of mortar and concrete, the concrete transport vehicle with "back" mortar cannot rotate during walking, and the vehicle bumps all the way during walking, which will cause concrete stratification, that is, stones sink and cement slurry floats. When the concrete is transported to the construction site, if the pump is not fully stirred and pumped into the project, the shear wall and column concrete structure will be delaminated, and the upper part of the structure will have few or no stones, resulting in engineering quality accidents; if it is fully stirred, more manpower and labor will be wasted. time

[0004] To sum up, since the ready-mixed concrete must be wetted and lubricated to the pump truck and the pipeline before starting the pump, the ready-mixed concrete industry all over the country has been using water and mortar to lubricate the pipeline in the past decades, and the cost is relatively high, and Waste of materials and vehicles, not conducive to energy saving

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