MATEC Web Conf.
Volume 120, 2017International Conference on Advances in Sustainable Construction Materials & Civil Engineering Systems (ASCMCES-17)
|Number of page(s)||12|
|Section||Sustainable Concrete Technology|
|Published online||09 August 2017|
A comparative study of physical and chemical properties of different pozzolanic materials used for roller compacted concrete RCC dams
1 Prof. and Chancellor, Fahad Bin Sultan University, Kingdom of Saudi Arabia On Leave from Jordan University of Science and Technology, Irbid-Jordan
2 Project Geotechnical Engineer, CH2M, VA 20171, USA
3 Master Student, Civil Engineering Department, The University of Akron, Akron, OH, USA
* Corresponding author: firstname.lastname@example.org
This paper addresses the feasibility and the efficiency of using Natural Pozzolan and/or Rock flour in Roller Compacted Concrete (RCC) gravity dams. For this purpose, five identical mortar trial mixes were prepared using five different supplementary materials, i.e., fly ash produced in South Africa (proven to be effective in RCC construction), fly ash produced in Turkey, Jordanian natural pozzolan, Saudi natural pozzolan, and rock flour from Mujib Dam basalt quarry. The physical and chemical properties of these pozzolanic materials were determined. The effectiveness of each one of these mineral admixtures used as a cement replacement material in controlling alkali silica reaction are studied and analyzed. Correlations were made between the mechanical properties for the five proposed mixes and a control mix using the Jordanian Portland Cement. The results demonstrate that the performance of Natural Pozzolana and/or rock flour as compared with that of fly ash and other pozzolanic material is very satisfactory and can be effectively used in RCC construction.
© The Authors, published by EDP Sciences, 2017
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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