ACI PRC-229R-13(22) Report on Controlled Low-Strength Materials (Reapproved 2022)

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Description

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.

 

Document Details

Author: ACI Committee 229

Publication Year: 2013

Pages: 22

ISBN:

Categories: Controlled Low Strength Materials

Formats: Protected PDF/Web View, ePub, or Kindle

Table of Contents

CHAPTER 1—INTRODUCTION

CHAPTER 2—NOTATION AND DEFINITIONS

2.1—Notation

2.2—Definitions

CHAPTER 3—APPLICATIONS

3.1—General

3.2—Backfills

3.3—Structural fills

3.4—Insulating and isolation fills

3.5—Thermal-insulation-conductivity fills

3.6—Pavement bases

3.7—Conduit bedding

3.8—Erosion control

3.9—Void filling

3.10—Nuclear facilities

3.11—Bridge reclamation

CHAPTER 4—MATERIALS

4.1—General

4.2—Portland cement

4.3—Fly ash

4.4—Admixtures

4.5—Mineral admixtures and other additives, p. 6

4.6—Water

4.7—Aggregates

4.8—Nonstandard materials

4.9—Ponded ash or basin ash

CHAPTER 5—PROPERTIES

5.1—Introduction

5.2—Plastic properties

5.3—In-service properties

CHAPTER 6—PROPORTIONING

6.1—Introduction

6.2—Materials

6.3—General formulation

6.4—Proportioning methods

6.5—Evaluation

6.6—Adjustments to proportioning

CHAPTER 7—MIXING, TRANSPORTING, AND PLACING

7.1—General

7.2—Mixing

7.3—Transporting

7.4—Placing

7.5—Cautions

CHAPTER 8—QUALITY CONTROL

8.1—General

8.2—Sampling of CLSM

8.3—Consistency and unit weight

8.4—Strength tests

CHAPTER 9—LOW-DENSITY CLSM USING PREFORMED FOAM

9.1—General

9.2—Applications

9.3—Materials

9.4—Physical properties

9.5—Proportioning

9.6—Construction

9.7—Quality control

CHAPTER 10—REFERENCES

ERRATA INFO

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