There are various types of defoamers used in concrete, mainly including organosilicon, polyether, and polyether modified silicone. Different types of defoamers have their own unique advantages and applicable ranges.

Organic silicone defoamers have good defoaming performance due to their low surface tension and high activity, but may have poor compatibility with concrete components. Polyether defoamers have excellent defoaming and anti foaming properties, and have good compatibility with concrete, although in some cases their defoaming effect may be slightly inferior to that of organosilicon. Polyether modified silicone defoamers combine the advantages of organosilicon and polyether, with excellent defoaming performance and good compatibility.

When selecting defoamers for concrete, it is necessary to make a reasonable choice based on the specific concrete formula, construction environment, and engineering requirements. For example, for high-performance concrete, it is necessary to choose defoamers specifically developed for this type of concrete to ensure that its performance is not affected. At the same time, factors such as cost-effectiveness and ease of use of defoamers need to be considered.