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Being produced through process of levigation, batching concrete batching plant, pouring, incision, and autoclaved curing, aerated concrete is a kind of light and poriferous building material, which is made up of cement, lime, slag, coal ash Portable concrete mixer, sand, and air entraining agent. It is called aerated concrete for the lots of uniform and fine holes produced inside the concrete.Henan Daswell Machinery is a professional manufacturer of mining machine for almost 30 years in China. We are dedicated to supplying our customers with best service and products, our major products include:MP planetary concrete mixer,concrete batching plant,concrete mixer,If you are interested in our products, please contact us freely: sales@daswell.com Air entraining agent, which can produce lots of airtight micro bubbles among concrete mixtures, has the function of increasing volume of cement paste and reducing friction between aggregates. Therefore, it can greatly increase fluidity of mixtures, improve workability of concrete, and decrease mixing water of concrete. Besides, as there are many airtight micro bubbles surround the aggregates, the micro holes connecting to exterior world will be severed, which can prevent outside water from entering into concrete. In this way, hygroscopic property of concrete will be reduced, and anti-permeability will be enhanced as well as freezing resistance and chemical resistance. In consequence, air entraining agent is frequently used as water-proofing agent to produce waterproof concrete. The only deficiency of using air entraining agent is that it can lower intensity of concrete slightly. What’s more egg laying block machine, the higher of air content among concrete, the lower of concrete intensity will be. So when using air entraining agent, air content should be strictly controlled between three percent and five percent.