304.1R-92
Guide for the Use of Preplaced Aggregate Concrete for Structural and Mass Concrete Applications (Reapproved 2005)
1992, 19 pp.
$38.50

The preplaced-aggregate (PA) method for concrete construction is explained, special properties described, and materials requirements are given where they differ from those used in normal concrete. A brief history of the development of the procedure is covered. Short descriptions of several typical applications are included.

Contents:
Chapter 1:Introduction

* History
* General considerations
* Special properties
* Strength
* Bond
* Durability
* Heat of hydration control
* Closely spaced reinforcement
* Heavyweight (high-density) concrete
* Monolithic placements
* Exposed aggregate surfaces

Chapter 2: Materials and proportioning

* Coarse aggregate
* Fine aggregate
* Cement
* Pozzolan
* Admixtures
* Prepackaged grout products
* Resinous grout
* Grout mixture proportioning

Chapter 3: Equipment

* Aggregate handling
* Grout mixers and pumps
* Grouting systems

Chapter 4: Construction procedure

* General considerations
* Preparation of concrete surfaces
* Grout inserts, sounding wells, and vent pipes
* Forms
* Coarse aggregate placement
* Contamination
* Grout injection
* Joint construction
* Finishing
* Curing

Chapter 5: Temperature control

* Grout mixture proportioning
* Chilling coarse aggregate in place
* Chilling aggregate before placement
* Chilling the grout
* Cold weather placement

Chapter 6: Quality assurance and control

* Quality assurance
* Quality control

Chapter 7: Conclusion

* Economics
* Closure

Chapter 8: References

* Specified and/or recommended references
* Cited references