Supply of sand washed sand building sand

Hebei Lingshou river sand rich in natural resources, the river water is clear and no industrial pollution, and the amount of soil containing little impurities. Its particle size between 2.8mm-3.2mm. River sand is mainly floodplain deposits of sand, its color was gray nature - pale yellow, containing fine sand, coarse sand, coarse sand, gravel, gravel layer. Its occurrence in a riverbed west, sloping from the surface of the river banks tends to tilt from the upstream to downstream, the average sand thickness of about 3 meters, maximum depth of 10 meters, with a total storage of about 15 million cubic meters per year increment silt approximately 500,000 cubic meters of sand apparent density 2580kg / m3 bulk density of 1569kg / 3m fineness modulus of 2.89 in the case of sand, clay content: 1.34%, hard, bright color, good building materials.