principles for selecting components of lubricant:
(1) first, substances with high surface tension and viscosity should be used to improve the adhesion of the lubricant inside the pump tube;
(2) the lubricating agent should have a large solubility to facilitate use at the construction site;
(3) the lubricating agent should have substances that can increase the slipperiness of water;
(4) the components of the lubricating agent should have good compatibility; and there should be no harm to concrete quality and the environment;
(5) each component should be reasonably priced and come from a wide range of sources , to facilitate promotion.
among the many surface-active substances, we selected component a with high viscosity, component b that can improve the wetting and lubricating effect of water on the pump and pump tube, and component c that can increase the dissolution rate of substance a. substance. find the optimal ratio of the three components through orthogonal experiments. the above three substances a, b, and c are mixed in a certain proportion to prepare a concrete lubricating agent.
performance of concrete pump lubricant:
(1) pump lubricant: water (normal temperature) = 1: 80 ~ 1: 100 can be dissolved after 5 ~ 10 minutes of stirring.
(2) the solution is a colorless, transparent, viscous liquid, weakly alkaline, and feels slippery.
(3) the main raw materials of wetting agent can be used to prepare concrete admixtures. a small amount of its solution mixed into concrete will have no effect on the strength. </p
