Concrete also known as bubble foam concrete, foam by machine foam blowing agent system will use mechanical means full of foam, foam and water and mud mixed evenly, and then after a foam machine pumping system cast-in-place construction Mold or shape, the Nature Conservancy formed to contain a new type of stomata closure of a large number of light-weight thermal insulation materials. It is a bubble-like insulation material, characterized in concrete to form an internal closure of the bubble hole, so that the light of concrete and insulation of.