Construction Engineering building sand sand sand building divided detailed description of the construction projects of washed sand: Sand construction works for Sand Series: coarse gravel, boulders, fine gravel robustness index: 7 (%) Origin: Hebei lingshou Apparent density: 2580 (kg / m3) bulk density: 1569 (kg / m3) mud content: 1 (%) clay content: 1 (%) Brand: Linda sand moisture content: 1 (%) sand is now divided: Construction sand, dry sand, natural sand, sand 4-8 mesh, sand 8-16 mesh, 10-20 mesh sand, sand 20-40 mesh, 40-70 mesh sand, sand 50- Introduction 100 mesh sand is a natural stone in its natural state, the force of the water for a long time repeatedly collide, friction, and its composition is more complex, there is a certain surface smoothness, impurity content and nonmetallic minerals. River sand particles sleek, relatively clean, wide source; no taste of river sand, sea sand salt taste; sand for the construction industry has Zhuo contribution. But the sand on the contrary, often mixed with sand and salt shells, most of the sand containing an excess of chloride ions, which can corrode steel reinforced concrete, resulting in damage to the building structure, to a certain extent, will shorten the safe use of the building lifetime. This product is bagged, 50 kg / bag, 25 kg / bag. Specializing in the production building sand, sand subhead, drying sand, natural sand. Welcome customers to negotiate procurement.