ACI ITG 4.2R 06 2006
$33.85
ITG-4.2R-06 Materials and Quality Considerations for High-Strength Concrete in Moderate to High Seismic Applications
| Published By | Publication Date | Number of Pages |
| ACI | 2006 | 30 |
This document addresses materials and quality considerations when using cast-in-place, normal-weight, high-strength concrete in structures that must be designed for moderate to high seismic applications.The term “high-strength concrete,” as defined by ACI Committee 363, refers to concrete having a specified compressive strength for design of 8000 psi (55 MPa) or greater. The lower 6000 psi (41 MPa) threshold, however, was chosen for the ITG-4 document because it deals with a specialized application of high-strength concrete application in areas of moderate to high seismicity. An accompanying standard, ITG-4.1 (available Spring 2007), is written in mandatory language in a format that can be adopted by local jurisdictions, and will allow building officials to approve the use of high-strength concrete on projects that are being constructed under the provisions of ACI 301 and 318. ITG-4.2R is the supporting document for that standard.ITG 4 has also developed another non-mandatory language document: ITG-4.3R (available Spring 2007). It addresses structural design and detailing considerations. Keywords: curing; high-strength concrete; mixture proportioning;placement; preconstruction meeting; production; project specification;quality control; seismic design; supplementary cementitious materials;temperature; trial batches.
PDF Catalog
| PDF Pages | PDF Title |
|---|---|
| 3 | CONTENTS |
| 4 | CHAPTER 1— INTRODUCTION 1.1— Background |
| 5 | 1.2—Scope CHAPTER 2— PREAMBLE |
| 6 | CHAPTER 3— GLOSSARY OF TERMS |
| 7 | CHAPTER 4— PROPERTIES OF HIGH- STRENGTH CONCRETE 4.1—Mechanical properties 4.1.1 Axial stress versus strain 4.1.2 Modulus of elasticity |
| 8 | 4.1.3 Creep |
| 9 | 4.1.4 Modulus of rupture 4.1.5 Splitting tensile strength |
| 10 | 4.1.6 Poisson’s ratio |
| 11 | 4.1.7 Shrinkage 4.2—Durability properties 4.2.1 Freezing-and-thawing resistance 4.2.2 Alkali-silica reactivity |
| 12 | 4.2.3 Sulfate attack 4.2.4 Delayed ettringite formation 4.2.5 Corrosion 4.3—Constructibility properties CHAPTER 5— RAW MATERIALS |
| 13 | CHAPTER 6— MIXTURE PROPORTIONING 6.1— Required strength 6.2—Water-cementitious material ratio 6.3—Cementitious materials content |
| 14 | 6.4—Air entrainment 6.5—Aggregates |
| 15 | 6.5.1 Fine aggregates 6.5.2 Coarse aggregates 6.6—Supplementary cementitious materials 6.6.1 Fly ash |
| 16 | 6.6.2 Ground-granulated blast-furnace slag 6.6.3 Silica fume 6.6.4 High-reactivity metakaolin 6.6.5 Blended hydraulic cements 6.7—Chemical admixtures 6.7.1 Conventional water-reducing admixtures |
| 17 | 6.7.2 High-range water-reducing admixtures 6.8—Combinations of supplementary cementitious materials and chemical admixtures 6.9—Proportioning for workability 6.10—Trial batches 6.10.1 Laboratory trials |
| 18 | 6.10.2 Field trials CHAPTER 7— MIXTURE SUBMITTAL REQUIREMENTS CHAPTER 8— PRECONSTRUCTION MEETINGS 8.1—Batching |
| 19 | 8.2—Transportation 8.3—Placement |
| 20 | CHAPTER 9— ORDERING CHAPTER 10— RAW MATERIALS HANDLING CHAPTER 11— PRODUCTION AND DELIVERY CHAPTER 12— CONCRETE TEMPERATURE CONTROL |
| 21 | CHAPTER 13— PLACEMENT, CONSOLIDATION, AND FINISHING CHAPTER 14— CURING |
| 22 | CHAPTER 15— RAW MATERIAL SAMPLING AND TESTING 15.1—Sampling method 15.1.1 Cementitious material 15.1.2 Aggregates 15.1.3 Chemical admixtures 15.2—Sample identification 15.2.1 Cement and supplementary cementitious materials 15.2.2 Aggregates 15.2.3 Chemical admixtures 15.3—Testing 15.3.1 Cement 15.3.2 Supplementary cementitious materials 15.3.3 Aggregates 15.3.4 Chemical admixtures CHAPTER 16— CONCRETE SAMPLING AND TESTING |
| 23 | 16.1—Sampling and testing schedule CHAPTER 17— SUMMARY AND RECOMMENDATIONS 17.1—Raw materials 17.2—Mixture proportioning |
| 24 | 17.3—Mixture submittal requirements 17.4—Preconstruction meetings 17.5—Ordering 17.6—Raw materials handling 17.7—Production and delivery 17.8—Concrete temperature control |
| 25 | 17.9—Placement, consolidation, and finishing 17.10—Curing 17.11—Raw materials sampling and testing 17.12—Concrete sampling and testing CHAPTER 18— REFERENCES 18.1— Referenced standards and reports |
| 26 | 18.2—Cited references |
| 28 | APPENDIX— SAMPLE AGENDA FOR PRECONSTRUCTION MEETING CONCERNING HIGH- STRENGTH CONCRETE |
