Title:
Use of Recycled Aggregate in Plain Fiber-Reinforced Shotcrete
Author(s):
Nemkumar Banthia and Cesar Chan
Publication:
Concrete International
Volume:
22
Issue:
6
Appears on pages(s):
41-45
Keywords:
cast concrete; concrete; recycled aggregates; shotcrete; shotcrete, dry-mix; shotcrete, wet-mix
DOI:
Date:
6/1/2000
Abstract:
With an increase in our environmental consciousness, the concrete industry is coming under intense scrutiny and criticism. Many practices within the concrete industry that pose a potential threat to our environment are becoming matters of serious consideration. There are two major concerns: first is the release of large quantities of greenhouse gases during cement production, and the other is the disposal of waste concrete after its useful life. The potential application of recycled aggregate from waste concrete in wet- and dry-process shotcrete is investigated herein. In many instances, the use of recycled aggregate in shotcrete is a more viable proposition than its use in cast concrete. Data are presented to demonstrate the feasibility of using recycled aggregate in shotcrete, and areas of future research activity are identified.