gypsum found in the soil beneath the foundation of structures, specially hydraulic structures, can cause serious damage to them. the mechanical behavior of gypsiferous soils has not so far been investigated in detail except for the works of petrukhin (1993). here, it has been tried to investigate the mechanical behavior and the effect of soil being leached on settlement and strength of these ki...

Pennsylvania generates over 50,000 m of spent mushroom substrate (SMS) annually due to production of the white button mushroom Agaricus bisporus (Chong and Hamersma 1997). Improper disposal of this volume of organic waste may cause environmental problems such as air, water and soil pollution. Considering that its major ingredients include incompletely composted straw, hay, manure, gypsum and po...