CHAPTER 7 CALTRANS ADVANCEMENTS / HIGH PERFORMANCE CONCRETE

Chapter 7 Caltrans Advancements / High Performance Concrete CONCRETE TECHNOLOGY MANUAL • JUNE 2013 7-i CHAPTER 7 CALTRANS ADVANCEMENTS / HIGH PERFORMANCE CONCRETE Table of Contents Caltrans Advancements / High Performance Concrete .......................................................... 7-1 Introduction .................................................................................................................................. 7-1 High Performance Concrete ......................................................................................................... 7-1 High Early Strength ...................................................................................................................... 7-2 High Strength Concrete ................................................................................................................ 7-7 Self-Consolidating Concrete ...................................................................................................... 7-14 Mass Concrete ............................................................................................................................ 7-23 The Basics of Mass Concrete ...................................................................................................... 7-23 Thermal Control Measures .......................................................................................................... 7-24 Identifying Mass Concrete .......................................................................................................... 7-26 Passive Control by Prescriptive Specifications, Caltrans Practice Prior to the 21st Century .......... 7-28 Performance Based Requirements ............................................................................................. 7-29 The Use of Active Thermal Control by Caltrans ........................................................................ 7-32 Noyo River Bridge ...................................................................................................................... 7-33 San Francisco-Oakland Bay Bridge East Spans .......................................................................... 7-34 Benicia-Martinez Bridge Substructure and Foundation ............................................................. 7-37 Cast-in-Place Segmental Bridge Construction ........................................................................... 7-38 Lightweight Concrete Segments & Mass Concrete in Elements with Dimensions as Small as 10 inches ...... 7-38 Devil’s Slide / Confusion Hill: A Laconic Approach to Mass Concrete Speciﬁcations .............. 7-43 Acceptance of Active Controls And Return to Passive Control .................................................. 7-45 Back to Prescriptive Passive Control Specifications& Mass Concrete for Concrete Piles .............. 7-46 Mass Concrete Conclusions ........................................................................................................ 7-49 Lightweight Concrete ................................................................................................................. 7-49 Shrinkage Compensating Concrete ............................................................................................ 7-51 Durability .................................................................................................................................... 7-53 Fiber Reinforced Concrete ......................................................................................................... 7-53 Reactive Powder Concrete .......................................................................................................... 7-54

CHAPTER 7 CALTRANS ADVANCEMENTS / HIGH PERFORMANCE CONCRETE

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