This specification is a reference specification that the licensed design professional can make applicable to any construction project by citing it in the project specifications. The licensed design professional supplements the provisions of this reference specification as needed by designating or specifying individual project requirements. This specification covers cast-in-place, normalweight, high-strength concrete in structures that must be designed for moderate to high seismic applications. More specifically, this specification applies to structures: – Located in Seismic Zones 2, 3, or 4 defined by the Uniform Building Code; – Assigned to Seismic Performance Categories C, D, or E of the BOCA/ National Building Code (1993 and subsequent editions) or the Standard Building Code (1994 or subsequent editions); or – Seismic Design Categories C, D, E or F of the International Building Code or the National Fire Protection Association (NFPA) 5000 Building Construction and Safety Code. Irrespective of seismic hazard, seismic performance, or design category, these requirements shall apply to normalweight, high-strength concrete in intermediate or special moment frames and intermediate or special structural walls. Keywords: curing; high-strength concrete; mixture proportioning; placement; quality control; seismic application; temperature; trial batch.

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3	NOTES TO SPECIFIER NOTES TO SPECIFIER PREFACE PREFACE P1 P1 P2 P2 P3 P3 P4 P4 P5 P5
4	CONTENTS CONTENTS SECTION 1— GENERAL REQUIREMENTS SECTION 1— GENERAL REQUIREMENTS 1.1— Scope 1.1— Scope 1.1.1 General 1.1.1 General 1.1.2 Supplemental specification 1.1.2 Supplemental specification 1.1.3 High-strength concrete 1.1.3 High-strength concrete 1.1.4 Dual units 1.1.4 Dual units 1.2—Definitions 1.2—Definitions
5	1.3—Referenced standards and cited publications 1.3—Referenced standards and cited publications 1.3.1 Referenced standards 1.3.1 Referenced standards 1.3.1.1 ACI standards 1.3.1.1 ACI standards 1.3.1.2 ASTM standards 1.3.1.2 ASTM standards
6	1.3.2 Cited publications 1.3.2 Cited publications 1.4—Organizations producing codes and standards 1.4—Organizations producing codes and standards SECTION 2— MATERIALS SECTION 2— MATERIALS 2.1— General 2.1— General 2.1.1 Description 2.1.1 Description 2.1.2 Submittals 2.1.2 Submittals 2.1.2.1 2.1.2.1 2.1.2.2 2.1.2.2 2.2—Products 2.2—Products 2.2.1 Fine aggregates 2.2.1 Fine aggregates 2.2.2 Chemical admixtures 2.2.2 Chemical admixtures 2.3—Execution 2.3—Execution SECTION 3— MIXTURE PROPORTIONING AND TRIAL BATCHES SECTION 3— MIXTURE PROPORTIONING AND TRIAL BATCHES 3.1— General 3.1— General 3.1.1 Description 3.1.1 Description 3.1.2 Submittals 3.1.2 Submittals 3.1.2.2 Trial batch tests 3.1.2.2 Trial batch tests 3.1.2.3 Field verification tests 3.1.2.3 Field verification tests 3.1.3 Mixture proportions 3.1.3 Mixture proportions
7	3.1.4 Field verification tests 3.1.4 Field verification tests 3.2—Products 3.2—Products 3.3—Execution 3.3—Execution 3.3.1 3.3.1 3.3.2 3.3.2 3.3.3 3.3.3 3.3.4 3.3.4 SECTION 4— MIXTURE SUBMITTAL REQUIREMENTS SECTION 4— MIXTURE SUBMITTAL REQUIREMENTS 4.1— General 4.1— General 4.1.1 Description 4.1.1 Description 4.1.2 Submittals 4.1.2 Submittals 4.1.3 Approval of mixture proportions 4.1.3 Approval of mixture proportions 4.2—Products 4.2—Products 4.3—Execution 4.3—Execution SECTION 5— PRECONSTRUCTION MEEETINGS SECTION 5— PRECONSTRUCTION MEEETINGS 5.1— General 5.1— General 5.1.1 Description 5.1.1 Description 5.1.2 Coordination with construction 5.1.2 Coordination with construction 5.2—Products 5.2—Products 5.3—Execution 5.3—Execution SECTION 6— ORDERING SECTION 6— ORDERING 6.1— General 6.1— General 6.2—Products 6.2—Products 6.3—Execution 6.3—Execution 6.3.1 6.3.1 6.3.2 6.3.2 6.3.3 6.3.3
8	SECTION 7— PRODUCTION AND DELIVERY SECTION 7— PRODUCTION AND DELIVERY 7.1— General 7.1— General 7.1.1 Description 7.1.1 Description 7.1.2 Production and delivery requirements 7.1.2 Production and delivery requirements 7.2—Products 7.2—Products 7.3—Execution 7.3—Execution 7.3.1 Mixing 7.3.1 Mixing 7.3.2 Washing trucks 7.3.2 Washing trucks 7.3.3 Automatic measurement of moisture content 7.3.3 Automatic measurement of moisture content 7.3.4 Measuring moisture content during production 7.3.4 Measuring moisture content during production 7.3.5 Moisture content records 7.3.5 Moisture content records 7.3.6 Rinsing trucks 7.3.6 Rinsing trucks 7.3.7 Batch tickets 7.3.7 Batch tickets 7.3.8 Delivery tickets 7.3.8 Delivery tickets 7.3.9 Addition of water 7.3.9 Addition of water 7.3.10 Mixing time 7.3.10 Mixing time SECTION 8— CONCRETE TEMPERATURE CONTROL SECTION 8— CONCRETE TEMPERATURE CONTROL 8.1— General 8.1— General 8.2—Products 8.2—Products
9	8.3—Execution 8.3—Execution 8.3.1 Hot weather concrete placement temperature 8.3.1 Hot weather concrete placement temperature 8.3.2 Cold weather concreting 8.3.2 Cold weather concreting 8.3.2.1 8.3.2.1 8.3.2.2 8.3.2.2 SECTION 9— PLACEMENT SECTION 9— PLACEMENT 9.1— General 9.1— General 9.1.1 Description 9.1.1 Description 9.1.2 Submittals 9.1.2 Submittals 9.2—Products 9.2—Products 9.3—Execution 9.3—Execution 9.3.1 Placement upon delivery 9.3.1 Placement upon delivery 9.3.2 Placing equipment 9.3.2 Placing equipment 9.3.3 Depositing concrete 9.3.3 Depositing concrete 9.3.4 Concrete of different strengths 9.3.4 Concrete of different strengths 9.3.5 Addition of water 9.3.5 Addition of water 9.3.6 Addition of admixtures 9.3.6 Addition of admixtures 9.3.7 Consolidation 9.3.7 Consolidation SECTION 10— CURING SECTION 10— CURING 10.1—General 10.1—General 10.1.1 Description 10.1.1 Description 10.1.2 Submittals 10.1.2 Submittals 10.2—Products 10.2—Products 10.3—Execution 10.3—Execution 10.3.1 Commencement of curing 10.3.1 Commencement of curing 10.3.2 Temperature control 10.3.2 Temperature control
10	10.3.3 Mass concrete 10.3.3 Mass concrete SECTION 11— SAMPLING AND TESTING SECTION 11— SAMPLING AND TESTING 11.1— General 11.1— General 11.1.1 Description 11.1.1 Description 11.1.2 Submittals 11.1.2 Submittals 11.2—Products 11.2—Products 11.3—Execution 11.3—Execution 11.3.1 Materials 11.3.1 Materials 11.3.1.1 Testing standards 11.3.1.1 Testing standards 11.3.1.2 Sampling frequency 11.3.1.2 Sampling frequency 11.3.2 Concrete 11.3.2 Concrete 11.3.2.1 Testing fresh concrete 11.3.2.1 Testing fresh concrete 11.3.2.2 Strength testing 11.3.2.2 Strength testing NOTES TO SPECIFIERS NOTES TO SPECIFIERS Foreword to checklists Foreword to checklists F1 F1 F2 F2 F3 F3 F4 F4 F5 F5 F6 F6 F7 F7
11	MANDATORY REQUIREMENTS CHECKLIST MANDATORY REQUIREMENTS CHECKLIST OPTIONAL REQUIREMENTS CHECKLIST OPTIONAL REQUIREMENTS CHECKLIST
12	OPTIONAL REQUIREMENTS CHECKLIST (cont.) OPTIONAL REQUIREMENTS CHECKLIST (cont.) SUBMITTALS CHECKLIST SUBMITTALS CHECKLIST

Published By	Publication Date	Number of Pages
ACI	2007	16


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Standard Title	ITG-4.1-07 Specification for High-Strength Concrete in Moderate to High Seismic Applications
Published Code	ACI
Publication Date	2007
Pages Count	16

ACI ITG 4.1 07:2007 Edition

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