Title:
Temperature Control for the Gomal Zam RCC Arch-Gravity Dam
Author(s):
Chongjiang Du
Publication:
Concrete International
Volume:
38
Issue:
11
Appears on pages(s):
31-36
Keywords:
thermal, mixture, aggregate, pipe
DOI:
10.14359/51689389
Date:
11/1/2016
Abstract:
An arch-gravity roller-compacted concrete (RCC) dam on the Gomal River, Pakistan, was built from 2008 to 2012. Temperature control measures were required during construction to prevent thermal cracking of RCC in hot weather. The article provides detailed descriptions of these measures, specifically the precooling of aggregates and mixing water and post-cooling of the placed RCC.
Related References:
1. Du, C., “Structural Features of Gomal Zam RCC Arch-Gravity Dam,” Paper No. C008, Proceedings of the 6th International Symposium on Roller Compacted Concrete (RCC) Dams, Oct. 23-25, 2012, Zaragoza, Spain.
2. Du, C., “Transverse Contraction Joints and Grouting Systems for RCC Arch Dams,” The International Journal on Hydropower & Dams, No. 1, 2006, pp. 82-88.
3. ACI Committee 207, “Cooling and Insulating Systems for Mass Concrete (ACI 207.4R-05) (Reapproved 2012),” American Concrete Institute, Farmington Hills, MI, 2012, 19 pp.
4. “ICOLD Bulletin No. 126: Roller-Compacted Concrete Dams—State of the Art and Case Histories,” International Commission on Large Dams, Paris, France, 2003, 100 pp.
5. Qu, W.J.; Yu, F.; Zhu, F.J.; and Wang, L.Q., “Design of Temperature Control for Gomal Zam RCC Dam in Pakistan,” Design of Water Resources & Hydroelectric Engineering, V. 29, No. 3, 2010, pp. 12-13. (in Chinese)
6. State Key Laboratory of Water Resources and Hydropower Engineering Science of Wuhan University, “Simulation of Temperature and Stress Fields for Gomal Zam RCC Arch-Gravity Dam,” Report of Thermal Studies for Gomal Zam RCC Dam, Apr. 2010.
7. Du, C., “Post-cooling of RCC Dams with Embedded Cooling Pipe Systems,” The International Journal on Hydropower & Dams, No. 1, 2010, pp. 93-99.