The water-cement ratio refers to the ratio of the amount of water in cement concrete to the amount of cement. In the unit concrete mixture, after the slurry ratio is determined, that is, when the amount of cement slurry is a fixed value, the water-cement ratio determines the consistency of the cement slurry.
The water-cement is relatively small, the cement slurry is thicker, and the fluidity of the concrete mixture is also small. When the water-cement ratio is less than a certain limit value, the compact formation cannot be guaranteed under a certain construction method; on the contrary, the water-cement is relatively large , The cement slurry is thinner, although the fluidity of the concrete mixture is greater, but the cohesiveness and water retention will become worse.
When the water-cement ratio is greater than a certain limit value, serious segregation and bleeding will occur. Therefore, in order to enable the concrete mixture to be compactly formed, the water-cement ratio used cannot be too small. In order to ensure that the concrete mixture has good cohesion and water retention, the water-cement ratio used cannot be too large.
Since the change of the water-cement ratio will directly affect the strength of cement concrete, in actual engineering, when increasing the water consumption to increase the fluidity of the mixture, it is necessary to keep the water-cement ratio unchanged and increase the amount of cement at the same time. To significantly reduce the quality of concrete, we must never adjust the fluidity of the concrete mixture by simply changing the water consumption.
In the usual range of use, when the amount of water in the concrete is constant, the water-cement ratio changes within a small range, which has little effect on the fluidity of the concrete mixture.
Nanning Chigefeng Construction is a large-scale manufacturer specializing in the production of concrete mixing plant equipment. It can formulate a complete station construction plan according to the needs of customers. If necessary, please consult and order.
Post time: Jul-07-2021