Research on Ultrahigh Pumpability of C80 HS & HP Concrete

Abstract:

The concrete technology has seen great improvement with the construction of large numbers of ultrahigh buildings at a height of more than 400 meters worldwide. It has been a research hotspot in the field of concrete recently to discuss how to reduce pumping resistance, avoid pumping block and meet the requirements of ultrahigh pumping (h>400m), especially the challenge of the ultrahigh pumping of HS & HP concrete with larger pumping resistance. This paper researches the selection of raw materials and design of mix proportion of C80 concrete used in the construction, and introduces the workable evaluation index, pumpability and pumping project in relation to the ultrahigh pumping of C80 concrete mixture, according to the construction requirements of the one-off pumping height (412 meters) for the C80 HS & HP concrete used in West Tower Project of Zhujiang (Pearl River) New Town in Guangzhou-- the tallest building in South China Region of mainland China.

• Periodical: Applied Mechanics and Materials (Volumes 291-294)
• Pages: 980-986
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.291-294.980
• Online since: February 2013
• Authors: Li Bin Xu, Nai Qian Feng, Ch'ng Guan Bee
• Keywords: C80 HS & HP Concrete, Pumpability, Ultrahigh Pumping

References

[1] Wan Chaojun, Ding Xing: Research and Application Situation of HS & HP Concrete. Journal of Chongqing Architectural University. 1999. 2.

[2] Feng Naiqian: Structure of High Performance Concrete. China Machine Press. 2004. 1.

[3] Yao Yan, Wang Ling, Tian Pei, et al.: High Performance Concrete. Chemical Industry Press. 2006. 6.

[4] Shang Xiaoling, Tang Zhenzhong, Chen Shaobo: Preparation and Application of C80 HP Pumping concrete [J]. Engineer Quality. 1999, (3): 27-29.