introduction & objective: after urinary tract infection and prostatic disorders , the urine stones are the third common genitourinary diseases. demographic, environmental and genetic factors affect urine stone formation. the aim of our study is to survey epidemiologic factors in patients with urinary stones referring to educational hospitals of hamadan during 2010-2013.      materials & methods...

carbon nanotubes (MWCNTs) in the range of 0.00004–0.000006 wt. % mass cement on structure and mechanical properties concrete was demonstrated. A correlation found between an increase strength by 56 with changes stone, at which proportion crystals calcium hydroaluminate, hydrosulfoaluminate type 14A tobermorite increases significantly. The results obtained lay foundations for development a techn...

Materials (cement stone samples) in the CaO-K2O-SO3-H2O system with target phase compositions, including syngenite K2Ca(SO4)2·H2O and calcium sulfate dihydrate CaSO4·2H2O, were prepared from powder mixtures of anhydrite CaSO4, and/or calciolangbeinite K2Ca2(SO4)3, potassium K2SO4 via hydration reactions at a water/powder ratio within an interval 0.5–0.9. It was revealed that samples contents 25...

in the present investigation, for the first time in iran, dewatered sludge waste from air heater washing wastewater treatment of a thermal power plant was subjected to investigation of the cement base stabilization and solidification experiments in order to reduce the mobility of heavy and other hazardous metals as well as increasing the compressive strength of the solidified product for possib...