207.2R-07 Report on Thermal and Volume Change Effects on Cracking of Mass Concrete

207.2R-07 Report on Thermal and Volume Change Effects on Cracking of Mass Concrete

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Description

This report presents a discussion of the effects of heat generation and volume change on the design and behavior of mass concrete elements and structures. Emphasis is placed on the effects of restraint on cracking and the effects of controlled placing temperatures, concrete strength requirements, and material properties on volume change.

Keywords: adiabatic; cement; concrete cracking; creep; drying shrinkage; foundation; heat of hydration; mass concrete; modulus of elasticity; placing; portland cement; pozzolan; restraint; stress; temperature; tensile strength; thermal expansion; volume change

 

Document Details

Author: ACI Committee 207

Publication Year: 2007

Pages: 28.00

ISBN: 9780870312588

Categories: Mass Concrete

Formats: PDF

Table of Contents

Chapter 1—Introduction

1.1—Scope

1.2—Mass concrete versus structural concrete

1.3—Approaches for crack control

Chapter 2—Thermal behavior

2.1—General

2.2—Thermal gradients

Chapter 3—Properties

3.1—General

3.2—Strength requirements

3.3—Tensile strength

3.4—Creep

3.5—Thermal properties of concrete

3.6—Modulus of elasticity

3.7—Strain capacity

Chapter 4—Heat transfer and volume change

4.1—Heat generation

4.2—Moisture contents and drying shrinkage

4.3—Ambient temperatures

4.4—Placement temperature

4.5—Final temperature in service

4.6—Heat dissipation

4.7—Summary and examples

Chapter 5—Restraint

5.1—General

5.2—Continuous external restraint

5.3—Internal restraint

Chapter 6—Crack widths

6.1—General

6.2—Crack control joints

6.3—Limitations

Chapter 7—References

7.1—Referenced standards and reports

7.2—Cited references

Appendix A

A.1—Notation

A.2—Metric conversions

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