Technical study on bolt & shot concrete by using scrap stone instead of sand
CHEN Jin - tang, ZHANG Jing - cai (Pingdingshan Geology & Mineral Resouses Bureau, Pingdinashan 467000; No. 2 Mine of the Hebi Mining Adminidtrstion, Hebi 458020, China)
In the river - sand - shortage region, river - sand is natural to be replaced by scrap stone, which is technically practical and economically remarkable.
【CateGory Index】： TD35