Post Date:21,Nov,2022

In some concrete production processes, the constructor often adds a certain water-reducing agent, which can maintain the slump of concrete, improve the dispersion of concrete particles, and reduce water consumption. However, there is a drawback that the water reducing agent is a surfactant, which will lead to the generation of foam, which will affect the strength and quality of the concrete. If foam is generated during the construction process, it needs to be removed in time. There is a defoamer that can be very The best way to eliminate concrete foam is cement water reducing agent defoamer.

Defoaming performance of cement water reducing agent defoamer:

The defoamer is mainly made of modified polyether and belongs to the polyether defoamer. The defoamer will not adversely affect the essential properties of concrete in the application of concrete foam, and can have stable defoaming and foam suppressing effects. The defoamer has good dispersibility in the concrete foam, and can be quickly dispersed into the concrete foam to achieve the final foam breaking and defoaming effect. In addition to de-foaming and anti-foaming in concrete foam, it can also de-foam in high temperature and strong acid and alkali environment.

The defoaming effect of cement water reducing agent defoamer:

The effect of the defoamer on the performance of concrete is mainly manifested in two aspects: on the one hand, it can eliminate the air bubbles between the concrete and the formwork to a certain extent, effectively prevent or eliminate the generation of honeycomb and pockmarked surfaces on the concrete surface, and make the surface of the concrete have High flatness and gloss. On the other hand, the defoamer can eliminate a large amount of air bubbles in the concrete, reduce the air content and the internal porosity of the concrete, and improve the mechanical properties and durability of the concrete.

How to use cement water reducing agent defoamer:

1. When the defoamer is used in the production of concrete foam with a water reducing agent, the concrete foam slurry will be relatively sticky. It is recommended to add the defoamer quickly when the foam is generated, which can quickly eliminate the uneven large bubbles in the concrete foam and introduce uniform The small air bubbles can increase the hardness of the concrete.

2. The defoamer has strong dispersibility and is easy to separate after being placed for a long time. It is recommended that continuous mixing be performed during the removal of concrete foam.

3. The defoamer may be degraded due to its alkalinity, so please avoid using it when the pH value is above 10.