What’s Next for ACI 301? · Jason Bray, Secretary ACI 301 Specifications for Structural Concrete....
Transcript of What’s Next for ACI 301? · Jason Bray, Secretary ACI 301 Specifications for Structural Concrete....
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The Concrete Convention
and Exposition
New Business-What’s Next for ACI 301?
Presented by:Michelle L. Wilson, FACI
Director, Concrete Technology
ACI 301-16 Specifications for Structural Concrete
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The Concrete Convention
and Exposition
Quest for Perfection
ACI 301 Specifications for Structural Concrete
• ACI 301-xx
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The Concrete Convention
and Exposition
Membership• Voting Members- 37
– Increased membership by 3 votes
– Returning voting- 22
– From subcommittee- 7
– From consulting- 1
– New members- 7
– Balance: P-14, U-18, GI-5
ACI 301 Specifications for Structural Concrete
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The Concrete Convention
and Exposition
Membership• Steering Committee
Michelle Wilson, Chair
Jason Bray, Secretary
ACI 301 Specifications for Structural Concrete
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The Concrete Convention
and Exposition
Membership• Steering Committee
Eric Koehler- Section 1, 301 A
General Requirements, Definitions, and Tolerances
Daniel Toon- Section 2, 301 B
Formwork and Formwork Accessories
John Turner- Section 3, 301 C
Reinforcement and Reinforcement Supports
ACI 301 Specifications for Structural Concrete
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The Concrete Convention
and Exposition
Membership• Steering Committee
Henry Prenger- Section 4, 301 D
Concrete Mixtures
Michael Hernandez-Section 5, 301 E
Handling, Placing, and Constructing
Anthony DeCarlo- Section 6, 301 F
Architectural Concrete
ACI 301 Specifications for Structural Concrete
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The Concrete Convention
and Exposition
Membership• Steering Committee
Kenneth Harmon-Section 7, 301 G
Lightweight Concrete
John Gajda-Section 8, 301 H
Mass Concrete
Theodore Neff- Section 9, 301 I
Post-tensioned Concrete
ACI 301 Specifications for Structural Concrete
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The Concrete Convention
and Exposition
Membership• Steering Committee
Scott Tarr-Section 10, 301 J and Section 11, 301K
Shrinkage Compensating Concrete
Industrial Floor Slabs
Anthony DeCarlo- Section 12, 301 L
Tilt-up Construction
ACI 301 Specifications for Structural Concrete
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The Concrete Convention
and Exposition
Membership• Steering Committee
Roger Becker-Section 13, 301 M and Section 14, 301N
Precast Structural Concrete
Precast Architectural Concrete
ACI 301 Specifications for Structural Concrete
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The Concrete Convention
and Exposition
Membership• Subcommittee Members- 38
– Returning subcommittee – 18
– New members-15
– From Main committee- 5
– Moved up to voting- 7
ACI 301 Specifications for Structural Concrete
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The Concrete Convention
and Exposition
Membership• Consulting Members- 4
ACI 301 Specifications for Structural Concrete
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The Concrete Convention
and Exposition
Meetings
ACI 301 Specifications for Structural Concrete
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The Concrete Convention
and Exposition
Meetings
ACI 301 Specifications for Structural Concrete
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The Concrete Convention
and Exposition
Committee Goals• Tackle New Business Items
• Editorial Formatting
• Chicago Style Politics
• 5 year cycle
ACI 301 Specifications for Structural Concrete
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The Concrete Convention
and Exposition
New Business
• Topics generated from TAC and Public Comment
– TAC generated 610 total comments and 46 New Business Items
– Public generated 315 total comments and 81 New Business Items
– Total New Business Items: 127
ACI 301 Specifications for Structural Concrete
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The Concrete Convention
and Exposition
Title of Document
• Specifications for Structural Concrete
ACI 301 Specifications for Structural Concrete
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The Concrete Convention
and Exposition
Definition of Structural Concrete
• 301-16- plain or reinforced concrete in a member
required to transfer gravity loads, lateral loads, or both, to the ground.
• CT- plain or reinforced concrete in a member that is part of a structural system required to transfer gravity loads, lateral loads, or both, along a load path to the ground.
ACI 301 Specifications for Structural Concrete
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The Concrete Convention
and Exposition
Section 1- General Requirements, Definitions and Tolerances• Definitions:
– Architect/Engineer vs. Licensed Design Professional
– Acceptance
• 1.6.2.2. Initial Curing responsibility
ACI 301 Specifications for Structural Concrete
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The Concrete Convention
and Exposition
Section 2- Formwork and Formwork Accessories• Formwork removal criteria for
non-loadbearing formwork
• Void forms- ‘carton’ forms
• Joints- Do they belong in Section 2 or 5?
ACI 301 Specifications for Structural Concrete
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The Concrete Convention
and Exposition
Section 3- Reinforcement and Reinforcement Supports• WWF supports. Bar supports in critical areas
• New galvanized specification
• Heating bars for bending- A.W.S.
• Non-contact laps- permitted by 318 not specified in 301
ACI 301 Specifications for Structural Concrete
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The Concrete Convention
and Exposition
Section 4- Concrete Mixtures• Durability- low permeability
• ASR- coordinate with ASTM C1778
• Macrofibers
ACI 301 Specifications for Structural Concrete
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The Concrete Convention
and Exposition
Section 5- Handling, Placing, and Constructing• Joints
• Finishes- heavy-duty topping for 2-course slabs
• Temperature limits
ACI 301 Specifications for Structural Concrete
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The Concrete Convention
and Exposition
Section 6- Architectural Concrete• Mock Ups
• Acceptance
ACI 301 Specifications for Structural Concrete
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The Concrete Convention
and Exposition
Section 7- Lightweight Concrete• Internal Curing
• Remove- Not to use max w/cm for LW in Section 4.
ACI 301 Specifications for Structural Concrete
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The Concrete Convention
and Exposition
Section 8- Mass Concrete• Definition of Mass Concrete
• DEF
ACI 301 Specifications for Structural Concrete
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The Concrete Convention
and Exposition
Section 9- Post-Tensioned Concrete• Clarifying the finishing requirements
• Flame cutting
• Protection of anchorage
ACI 301 Specifications for Structural Concrete
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The Concrete Convention
and Exposition
Section 10- Shrinkage-Compensating Concrete• Expand scope
• SCC isolation joints- Section 5
ACI 301 Specifications for Structural Concrete
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The Concrete Convention
and Exposition
Section 11- Industrial Floor Slabs• Definition of Industrial Floors
• Redundant provisions
• Protection plan for curing period-non-air entrained floors
ACI 301 Specifications for Structural Concrete
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The Concrete Convention
and Exposition
Section 12- Tilt-up Construction• Surface finish
• Membranes
ACI 301 Specifications for Structural Concrete
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The Concrete Convention
and Exposition
Sections 13 and 14- Precast Structural Concrete and Precast Architectural Concrete
• Restructure sections
• Consider new certification programs
ACI 301 Specifications for Structural Concrete
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The Concrete Convention
and Exposition
Other New Business• ITG-4.1-07: Specification for High-Strength
Concrete in Moderate to High Seismic Applications
• Paving
• Shotcrete
ACI 301 Specifications for Structural Concrete
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The Concrete Convention
and Exposition
Cheers to the Next Cycle!
ACI 301 Specifications for Structural Concrete
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The Concrete Convention
and Exposition
Thank you.