The purpose of the plasticizer in the production of concrete mixture
Superplastifier – an additive that is most often used in the production of concrete. The advantages of its use are undeniable: the concrete mixture becomes more plastic, its fluidity increases without adding an excess amount of water, cement is saved. As you know, the duct plays an important role in the ventilation system.
In the production of concrete mixtures, there is a well -known technological contradiction: for the durability of the concrete product of water, less should be added for its closing, ideally – only in order to pass the process of cement hydration and no more. But such a “tough” mixture cannot be stacked with high quality. Therefore, in order for the mixture to become more mobile, water is added more than the necessary. Which significantly reduces the calculated strength. In this case, the plasticizer can help in this case. True, there is in its application and lack. When using it, the hardening rate of the concrete mixture increases slightly, and it is already considerable. You have to additionally use a hardening accelerator. And then the advantages of plasticized concrete mixture become undeniable. So, cement per 1 cubic meter of concrete can be taken 15% less. The concrete mixture does not reduce its calculated strength, since the water for closing is used much less, and mobility continues to be high. In addition, the need to vibration of the laid mixture disappears.