Concrete preparation method capable of prolonging concrete setting time

Abstract

The invention discloses a concrete preparation method capable of prolonging concrete setting time. The concrete preparation method capable of prolonging the concrete setting time comprises the following steps: S1, preparing materials: 700KG of broken stone, 800KG of washed sand, 400KG of Portland cement, 10KG of an efficient retarder and 150KG of water, and S2, mixing: sequentially adding the broken stone, the washed sand, the Portland cement, the efficient retarder and the water in the step S1 into concrete stirring equipment, and stirring for 20 minutes. According to the concrete preparation method capable of prolonging the concrete setting time, through a rotating rod, a pressurizing box, a piston, a water through hole, a water conveying hole, a water diversion cavity and a water outlet hole, a mixed solution of water and an efficient retarder can conveniently flow into a stirring machine body, the efficient retarder and concrete are fully mixed, and the phenomenon that the concrete setting time is different due to non-uniform mixing of the efficient retarder isavoided; and through the efficient retarder, the concrete setting time can be effectively prolonged, so that the building requirements are met, and the problem that the concrete setting time is short is solved.

Description

technical field [0001] The invention relates to the technical field of concrete preparation, in particular to a concrete preparation method capable of prolonging the setting time of concrete. Background technique [0002] Ordinary concrete refers to the artificial stone made of cement as the main cementitious material, mixed with water, sand, stones, chemical admixtures and mineral admixtures when necessary, mixed in an appropriate proportion, and uniformly stirred, compacted and cured. , has the advantages of rich raw materials, low cost, good plasticity, high strength, good durability, and can be reinforced with steel bars. [0003] In the process of pouring large concrete buildings, it takes a long time to complete the pouring. However, the initial setting of ordinary concrete generally takes six to eight hours, which leads to the fact that the subsequent pouring has not been completed, and the previous concrete The phenomenon of condensation will affect the construction...

AI Technical Summary

Problems solved by technology

[0003] In the process of pouring large concrete buildings, it takes a long time to complete the pouring. However, the initial setting of ordinary concrete generally takes six to eight hours, which leads to the fact that the subsequent pouring has not been completed, and the previous concrete Condensation occurs, which affects the construction process, and it is necessary to ensure that the concrete will not congeal during the process of pumping concrete or transporting concrete with a mixer truck

Images