Title:
Controlled Low Strength Materials (CLSM), ACI 229R-94
Author(s):
ACI Committee 229
Publication:
Concrete International
Volume:
16
Issue:
7
Appears on pages(s):
55-64
Keywords:
aggregates; backfill; compacted fill; controlled density fill; controlled low-strength material; flowable fill; flowable mortar; fly ash; foundation stabilization; low-density material; pipe bedding; plastic soil-cement; preformed foam; soil-cement slurry
DOI:
Date:
7/1/1994
Abstract:
Controlled low-strength material (CLSM) is a self-compacted, cementitious material used primarily as a backfill in lieu of compacted fill. Many terms are currently used to describe this material including flowable fill, unshrinkable fill, controlled density fill, flowable mortar, flowable fly ash, fly ash slurry, plastic soil-cement, soil-cement slurry, K-Krete (trade name for this type of material), and other various names. This report contains information on applications, material properties, mix proportioning, construction and quality control procedures. Basic information on CLSM technology is provided with emphasis on CLSM material characteristics and advantages over conventional compacted fill.