浙江省风化壳型建筑用砂矿床地质特征及开发应用

Weathering Crust Sand Deposit Geological Features and Application in the Architecture Industry in Zhejiang Province

由于建筑用砂石的需求增速加快,河道砂石资源已经出现短缺,同时过量采集对环境造成危害,因此迫切需要新的建筑砂矿资源来替代。浙江省山砂矿床赋存于酸性、中酸性侵入岩的风化壳中,其矿床特征主要表现为①矿床分布与形态受母岩特征与地貌形态双重制约;②矿床均具层状或似层状,分层构造明显;③矿床物质组成主要有母岩残留矿物和表生矿物两大类。矿床评价较为简单,易采易选,产品质量好,可广泛适用于各种混凝土工程,具有广阔的应用前景。

Because the fast increasing of sand applies in the architecture industry, the river sand resources already appeared short, simultaneously excessive exploitation causes the harm to the environment, therefore, it is urgently need to find a new construction sand to substitute. Mountain sand deposit saves in the weathering crust of the acidic, medium acidic intrusive rock, the deposit mainly characteristic comprises： （1） the distribution and shape of the deposit is restricted by dual two condition- the mother rock character- istic and the landform shape; （2） deposit takes on layer or resembles layer and delaminates structure obviously; （3） deposit component contains two broad headings residual mineral of mother rock and the hypergene mineral. The mountain sand deposit is appraised simply, easy to mining and rain run, its product quality is good, can widely applies to all kind of concretes project. The mountain sand application is prospect.