224R-01
Control of Cracking in Concrete Structures
2001, 46 pp.
$77.50

The principal causes of cracking in concrete and recommended crack- control procedures are presented. The current state of knowledge in microcracking and fracture mechanics is discussed. The control of cracking due to drying shrinkage and crack control for flexural members, layered systems and mass concrete are covered in detail. Long-term effects on cracking are considered, and crack control procedures used in construction are presented. Information is provided to assist the engineer and the constructor in developing practical and effective crack control programs for concrete structures.

Contents:

Chapter 1--Introduction

Chapter 2--Crack mechanisms in concrete

2.1--Introduction

2.2--Microcracking

2.3--Fracture

Chapter 3--Control of cracking due to drying shrinkage

3.1--Introduction

3.2--Crack formation

3.3--Drying shrinkage

3.4--Factors influencing drying shrinkage

3.5--Control of shrinkage cracking

3.6--Shrinkage-compensating concretes

Chapter 4--Control of cracking in flexural members

4.1--Introduction

4.2--Crack control equations for reinforced concrete beams

4.3--Crack control in two-way slabs and plates

4.4--Tolerable crack widths versus exposure conditions in concrete

4.5--Flexural cracking in prestressed concrete

4.6--Anchorage zone cracking in prestressed concrete

4.7--Tension cracking

Chapter 5--Long-term effects on cracking

5.1--Introduction

5.2--Effects of long-term loading

5.3--Environmental effects

5.4--Aggregate and other effects

5.5--Use of polymers in improving cracking characteristics

Chapter 6--Control of cracking in concrete layered systems

6.1--Introduction

6.2--Fiber reinforced concrete (FRC) overlays

6.3--Latex modified concrete (LMC) overlays

6.4--Polymer impregnated concrete (PIC) systems

Chapter 7--Control of cracking in mass concrete

7.1--Introduction

7.2--Crack resistance

7.3--Determination of temperatures and tensile strains

7.4--Control of cracking

7.5--Testing methods and typical data

7.6--Artificial cooling by embedded pipe systems

7.7--Summary--Basic considerations for construction controls and specs

Chapter 8--Control of cracking by correct construction practices

8.1--Introduction

8.2--Restraint

8.3--Shrinkage

8.4--Settlement

8.5--Construction

8.6--Specifications to minimize drying shrinkage

8.7--Conclusion

Chapter 9--References

9.1--Specified and/or recommended references

9.2--Cited references