Effect of some heavy metal salts on the formation of ettringite

ISBN-13: 9783659108815 / Angielski / Miękka / 2012 / 116 str.

Maha Mohamed;Wafaa Hegazy;Eisa Hekal

Opis

The effect of the addition of chloride and nitrate salts of Zn, Cu, Pb and Cr on the hydration reaction of a mixture of 3CaO. Al2O3 (C3A) and gypsum with molar ratio 1: 3 was studied. Different ratios of each salt were used namely; 0.5, 2 and 4 % by weight of the solid mixture. Hydration reaction was carried out at 35°C for various time intervals; 1/2 hour, 3, 6 and 24 hours, 3 and 7 days. Hydration kinetics of the system 3CaO. Al2O3 CaSO4. 2H2O in absence and presence of different salts was studied via the determination of the combined water contents.

O autorze

Name: Maha Rabea Abu-Serea MohammedPosition: lecturer of Inorganic and Analytical Chemistry,Chemistry Department, Women's College for Arts, Science and Education, Ain Shams University, Cairo, Egypt.Address: Women's College for Arts, Science and Education, Ain Shams University, Masr El-gededa,