Separation and determination of metal ions based on the formation of chelate anions with 1-Nitroso-2,7-dihydrexynaphthalene-3,6-di sulfonic acid(1N2,7O3,6S) was
The mechanical properties and durability ( mainly frost-resistance and carbonation resistance ) of fly ash-CaO-CaSO4 .2H2O hardened paste are studied. The relat