一个人被几个人糟蹋的视频

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        How to make foam concrete
        2019/7/25

        Foam concrete is a new type building material, the foamed concrete is mechanically fully foamed by a foaming system of a foam concrete machine, and the foam is uniformly mixed with the cement slurry. Then, through the pumping system of the foam concrete machine, a new lightweight insulation material containing a large number of closed pores is formed by cast-in-place construction or mold forming, which is formed by natural curing.

        Foamed concrete, also known as foamed cement, lightweight concrete, etc., is a new building energy-saving material that is wasteful, environmentally friendly, energy-saving, low-cost and non-combustible. Foamed concrete is a concrete product which contains a large amount of fine closed pores and has considerable strength by chemically or physically introducing air or nitrogen, carbon dioxide gas, oxygen and the like into the concrete slurry according to the application requirements. Foamed concrete is typically produced by mechanically preparing an aqueous foaming agent into a foam. The specific operation is: mechanically preparing a foaming agent aqueous solution into a foam, and then adding the foam to a slurry composed of a siliceous material, a calcium material, water and various admixtures, and mixing, pouring, and curing.

        As a new type of energy-saving and environmentally-friendly building materials, domestic and foreign scholars have done a lot of research on it, making it widely used in wall materials. The advantages are: low density, light weight, heat preservation, sound insulation, shock resistance and the like. However, it still has certain defects, such as low strength, cracking, water absorption, etc. Therefore, further expansion of its application fields requires further research on foaming agents, mix ratios, process flow and equipment. It can be applied to retaining walls, building sports fields and athletic track, sandwich components, used as composite wall panels, pipeline backfilling, lean concrete filling, roof slopes, support for tank feet, etc.

        To make the foam concrete, we need a foam concrete machine, and also, we need foam agent to produce foams. If you are interested, you can contact us freely.

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        一个人被几个人糟蹋的视频
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