Title:
Special Concrete for Ankang Dam
Author(s):
Chongjlang Du
Publication:
Concrete International
Volume:
19
Issue:
9
Appears on pages(s):
61-66
Keywords:
cracking (fracturing); dams; joints; low heat cements; mass concrete;
shrinkage-compensating concretes;
DOI:
Date:
9/1/1997
Abstract:
Article describes the use of new material, low-heat, small expanding cement concrete (LHSECC), in the construction of the Ankang Dam in China. LHSECC limits temperature rise in mass concrete, with a low heat of hydration, and limits volume expansion of the concrete. These properties of LHSECC prevent cracking in mass concrete structures. Laboratory tests were conducted and the data obtained provided valuable practical information which was applied in the construction of the dam. Traverse joint openings are addressed as well as other successful construction techniques used in this project. The use of LHSECC not only reduced cracking, but sped up construction and reduced project costs.