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風化石打沙機工作現場

隨著河沙資源的日益枯竭,環保整治力度的不斷加大,一些河流、水庫等沙場的不斷關閉,風化沙逐漸的代替了河沙。風化砂是地表巖層風化過程的中間產物,也是河沙的前期產物,其耐久性較一般河沙差,物理力學性質較不穩定。風化砂的特征是顆粒呈棱角狀,強度較弱,大小分布不均勻性較大,并含有一量的細土粒。

With the increasing depletion of river sand resources and the continuous improvement of environmental protection efforts, some rivers, reservoirs and other sandworks have been closed, and weathered sand gradually replaced river sand. Weathered sand is an intermediate product of weathering process of surface rocks. It is also a prophase product of river sand. Its durability is worse than that of ordinary rivers and sand, and its physical and mechanical properties are unstable. The characteristic of the weathered sand is that the particles are angled, the strength is weak, the size distribution is not uniform, and a quantity of fine soil particles are contained.


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