Title:
Unique Applications of a Cellulose-Based Anti-Washout Admixture
Author(s):
Mark A. Bury, Charles K. Nmai, Godwin Amekuedi, and Jeff Bury
Publication:
Concrete International
Volume:
23
Issue:
4
Appears on pages(s):
24-30
Keywords:
DOI:
Date:
4/1/2001
Abstract:
Making repairs underwater pose a challenge to the contractor for various reasons, including the need to minimize washout of cement and fines during concrete placement. By far, the use of an antiwashout admixture (AWA) is the most effective option for minimizing washout and producing concrete that has the desired properties for the underwater concreting application. This article contains lab and field data that demonstrate that the AWA will significantly reduce washout of cement and fines, thereby ensuring the durability of concrete placed underwater. The applications presented highlight the versatility in providing economical and environmental benefits for underwater construction.