Title: Investigating Construction Methods for Longtan Dam

Author(s): Lei Yang and Jonathan J. Shi

Publication: Concrete International

Volume: 31

Issue: 3

Appears on pages(s): 41-47

Keywords: bond strength; dam; joint; roller-compacted concrete

DOI:

Date: 3/1/2009

Abstract:
Longtan Dam is a roller-compacted concrete (RCC) dam currently under construction in Guangxi Province, China. Due to its height and large volume, there are a great number of horizontal construction joints, and many of them may become cold joints during construction because weather conditions in the region often disrupt construction. In this study, different methods for treating layer joints in the Longtan RCC project were analyzed. The objective was to identify an efficient, easy-to-use treatment method that can meet the bonding requirements. The findings will help expedite construction and ensure high quality.