207.4R-05
Cooling and Insulating Systems for Mass Concrete
2005, 15 pp.
$51.50

The need to control volume change induced primarily by temperature change in mass concrete often requires cooling and insulating systems. This report reviews precooling, postcooling, and insulating systems. A simplified method for computing the temperature of freshly mixed concrete cooled by various systems is also presented.

Keywords: cement content; coarse aggregate; creep; formwork; heat of

hydration; mass concrete; modulus of elasticity; precooling; postcooling;

pozzolan; restraint; specific heat; strain; stress; temperature rise; tensile

strength; thermal conductivity; thermal diffusivity; thermal expansion; thermal

gradient; thermal shock.

Contents: CONTENTS

Chapter 1—Introduction, p. 207.4R-1

1.1—Scope and objective

1.2—Historical background

1.3—Types of structures and temperature controls

1.4—Construction practices for temperature control

1.5—Instrumentation

Chapter 2—Precooling systems, p. 207.4R-3

2.1—General

2.2—Heat exchange

2.3—Batch water

2.4—Aggregate cooling

2.5—Cementitious materials

2.6—Heat gains during concreting operations

2.7—Refrigeration plant capacity

2.8—Placement area

Chapter 3—Postcooling systems, p. 207.4R-9

3.1—General

3.2—Embedded pipe

3.3—Refrigeration and pumping facilities

3.4—Operational flow control

3.5—Surface cooling

Chapter 4—Surface insulation, p. 207.4R-11

4.1—General

4.2—Materials

4.3—Horizontal surfaces

4.4—Formed surfaces

4.5—Edges and corners

4.6—Heat absorption from light energy penetration

4.7—Geographical requirements

Chapter 5—References, p. 207.4R-14

5.1—Referenced standards and reports

5.2—Cited references