Multifunctional Use of Self-Compacting Concrete as A Fundamental Material in Dam Construction: Upper Gotvand Dam

Abstract:

Contemporary knowledge of SCC concretes, that brought about of worthy endeavors of numerous researcher and engineers have come in handy now.Taking advantage of such material makes compound construction more efficient, easier and less expensive. Upper Gotvand , a 180 meters height rock fill dam located southwestern Iran have several affiliated projects using SCC concrete for their high reinforced or hard to access segments such as bottom outlet structure, pressure tunnel blocks, concrete coating for penstock steel lining, upper and lower bends, powerhouse structures and etc. Particular structural peculiarities for each individual projects have been detected as well and SCC-related conclusions were made. To satisfy essential needs in order to make this concrete more ideal we are about to study mix design components to select the most consistent ingredients. Different available cements, third generation admixtures, and aggregate sources interaction were explored to elicit the most optimized mix design, native to region. In this article, accomplished quality control tests have been introduced. Test results have led to satisfactory mix manipulation and to ensure optimized attributes for required practical applications. It was revealed among Gotvand SCC ingredients, Binders and fines are the most ruling components, capable of governing practical traits. River aggregates are highly beneficial and Gelenium51P acts consistently with Ilam cement. Assigned Q.C. tests have led us to favorite mix named, NA45. Because of higher lateral pressure of fresh SCC than ordinary concrete, it was allocated to heading and upper lifts of walls. More water proof forms and more support requirement as well as longer setting time were concluded as relative constraints of SCC at practice.

• Periodical: Key Engineering Materials (Volumes 629-630)
• Pages: 391-398
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.629-630.391
• Online since: October 2014
• Authors: Ali Zabihollah Zadeh*, Behzad Zafari, Masoud Yaminpour
• Keywords: Dam SCC-Applied Structures, Performance, Q.C.Tests, Self-Compacting Concrete

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