مقاله Stabilization of Lead by Using Blended Cement Pastes pdf
مقاله Stabilization of Lead by Using Blended Cement Pastes pdf دارای 1 صفحه می باشد و دارای تنظیمات در microsoft word می باشد و آماده پرینت یا چاپ است
فایل ورد مقاله Stabilization of Lead by Using Blended Cement Pastes pdf کاملا فرمت بندی و تنظیم شده در استاندارد دانشگاه و مراکز دولتی می باشد.
این پروژه توسط مرکز مرکز پروژه های دانشجویی آماده و تنظیم شده است
توجه : در صورت مشاهده بهم ریختگی احتمالی در متون زیر ،دلیل ان کپی کردن این مطالب از داخل فایل ورد می باشد و در فایل اصلی مقاله Stabilization of Lead by Using Blended Cement Pastes pdf ،به هیچ وجه بهم ریختگی وجود ندارد
بخشی از متن مقاله Stabilization of Lead by Using Blended Cement Pastes pdf :
سال انتشار: 1392
محل انتشار: اولین همایش بین المللی و چهارمین همایش ملی عمران شهری
تعداد صفحات: 1
نویسنده(ها):
Mohammad Hossein Zandi – Graduate Student, Islamic Azad University, Science and Research, Department of Civil Engineering,Hamedan, Iran
Maziyar Darvishi – Graduate Student, Islamic Azad University, Science and Research, Department of Civil Engineering,Hamedan, Iran
Vahid Norion – Civil Engineer, Azad University, Department of Civil Engineering, sanandaj, Iran
چکیده:
stabilization of lead nitrate Pb(NO3)2, a representative of soluble lead compound, with five cements pastes based on either ordinary Portland cement (OPC) or blended Portland cement with granulated blast-furnace slag (GBFS) or metakaolin (MK) was studied. Various mixes were prepared by using a water/solidratio (W/S) of 0.28 (byweight). Two ratios of Pbions (1.0% and 2.0% of the solidbinder) was used by adding to the mixing water. Hydration characteristics of the different cement pastes were investigated via the examination of chemically combined water content, compressive strength. Leaching of lead ions from various hardened cement pastes wase xamined.The results showed that lead nitrate retards cement hydration through the formation ofplumbate salt CaPbO3. The obtained results of leaching showed a high degree of immobilization of Pb ions in the various cement pastes. More over, partial repla cement of Portland cement by MK is more efficient than granulated blast- furnace slag GBFS.
کلمات کلیدی:
