Desciption: Weight coating system composed of cement, water, aggregates, heavy or light depending on the required density and reinforcement.

说明：混凝土配重涂层系统由水泥、水、骨料(按照具体的密度要求使用重骨料或轻骨料)和加固材料组成。

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Both of the coarse and fine light-weight aggregates in the concrete were natural calcium carbonate nucleations with loose and porous structure.

“混凝土”中的轻质粗、细集料是一种组织疏松、多孔的天然碳酸钙结核。

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