Effects of Mg(OH)_2 and MgO on rheological behavior of attapulgite clay water suspensions

With construction like a pile of firewood, attapulgite clay water suspensions show yield pseudoplastic fluid characters,conform to Casson model and have good thixotropy. Mg(OH) 2 and MgO, with positive charge and very fine size, can increase obviously the yield stress, viscosity and thixotropy of attapulgite suspensions.