Controlled low-strength material (CLSM) is a self-consolidating cementitious material used primarily as a backfill as an alternative to compacted fill.
This report contains information on applications; materials; properties; proportioning; mixing, transporting, and placing; quality control; and low-density CLSM using preformed foam.
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 soilcement; preformed foam; soil-cement slurry; trench backfill; unshrinkable fill; void filling.
Table of Contents
CHAPTER 2—NOTATION AND DEFINITIONS
3.4—Insulating and isolation fills
4.5—Mineral admixtures and other additives, p. 6
4.9—Ponded ash or basin ash
6.6—Adjustments to proportioning
CHAPTER 7—MIXING, TRANSPORTING, AND PLACING
CHAPTER 8—QUALITY CONTROL
8.2—Sampling of CLSM
8.3—Consistency and unit weight
CHAPTER 9—LOW-DENSITY CLSM USING PREFORMED FOAM
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