Now, people in order to build a house, need a lot of sand, the results of a lot of river bed dig deep, and destroyed the environment. Why can not you substitute sand in the desert? Where the number of sand with how much, you can also move directly with the machine, rather than dig out and then transported.
Desert sand in the composition should be able to meet the requirements, but the particle size may be too fine, the gradation is relatively simple, not a good building sand
it should be OK,Sand can be mixed with different particle size Cost is the main factor, the construction of sand and gravel are very large!
the value of the material is not high, are generally local procurement If the transport distance is far, the cost is too high Of course, if one day to dig the river to further increase the harm, legislation completely prohibit the use of river sand, it is possible to achieve the idea of the landlord
