EFFECT OF SOME ADMIXTURES ON HEAT OF HYDRATION REACTION OF CEMENT PASTES PRODUCED IN YEMEN, SAUDI ARABIA, AND EGYPT. | ||
| JES. Journal of Engineering Sciences | ||
| Article 14, Volume 37, No 5, September and October 2009, Pages 1041-1048 PDF (306.99 K) | ||
| Document Type: Research Paper | ||
| DOI: 10.21608/jesaun.2009.127854 | ||
| Authors | ||
| Fatima A. Al-Qadri1; A. M. Saad2; Affaf Ahmed Aldlaee3 | ||
| 1Associate Professor, Department of Chemistry, University of Sana'a Yemen. | ||
| 2Associate Professor, Department of Chemistry, University of Sana'a, Yemen | ||
| 3Graduated student , Department of Chemistry, University of Sana'a, Yemen. | ||
| Abstract | ||
| Blended cement pastes were prepared with and without silica fume and fly ash using an initial water/cement ratio of 0.40. Effect of these two mineral admixtures (silica fume, and fly ash) on the heat evolution of hydration reactions of Portland cement produced in Yemen, Egypt and Saudi Arabia has been studied at various hydration times. The heat of hydration of OPC in the presence of admixtures was studied, by using calorimetric method. The results show that the heat of hydration of Portland cement is retarded in the presence of both the admixtures | ||
| Keywords | ||
| Portland cement; heat of hydration; silica fume; fly ash | ||
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