ultra-high performance ductal concrete
TRANSCRIPT
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TH17 - ULTRA-HIGH PERFORMANCEDUCTILE CONCRETE
Presented by:
Vic Perry, FCSCE, MASc., P.Eng.Lafarge North America
CONSTRUCT2009Conference: June 16-19, 2009
Indiana Convention Center
Indianapolis, IN
• SAFETY
• Please remember to mute all electronic devices.
• You must swipe your card at the door in order to
receive credit for your course.
• No one under the age of 18 is allowed inmeeting rooms.
A FEW REMINDERS…
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AIA/CES Credits
Hanley Wood is a Registered Provider with The American Institute of Architects Continuing Education Systems. Credit earned on completion of thisprogram will be reported to CES Records for AIA members. Certificates ofCompletion for non-AIA members available on request.
This program is registered with the AIA/CES for continuing professionaleducation. As such, it does not include content that may be deemed orconstrued to be an approval or endorsement by the AIA of any material ofconstruction or any method or manner of handling, using, distributing, ordealing in any material or product. Questions related to specific materials,
methods, and services will be addressed at the conclusion of this presentation.
CSI CEN Credits
This program is a registered educational program with the Construction
Specifications Institute of Alexandria, VA. The content within this program is not
created or endorsed by CSI nor should the content be construed as an approval of
any product, building method, or service. Information on the specific content can
be addressed at the conclusion of this program, by the Registered Provider.
Credit earned for completing this program will automatically be submitted to the
CSI CEN. Completion certificates can be obtained by contacting the Provider
directly.
This logo and statement identify Provider programs registered with the CSI CEN
and are limited to the educational program content.
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Learning Objectives:
Upon completing this program, the participant should know:
1. What is Ultra-High Performance Ductile Concrete?
2. Where and how it is used.
3. How to develop new solutions with UHP Ductile Concrete
4. How it will be used in the future.
What is Ultra-High Performance Concrete?
• UHPC is produced with materials commonly found in concrete (cement,silica fume, sand, superplasticizer and water) plus unique materials likeground quartz and fibers (high carbon metallic or poly-vinyl alcohol [PVA]).
• The fiber and UHPC chemicalformulation is customized tobest fit application requirements.Factors include strength andrheology requirements, exposure
to corrosive agents, desiredaesthetics and exposure tohuman contact.
• Not all UHPC’s are EQUAL!
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What is Ultra-High Performance Concrete?
• A technological breakthrough
• Superior characteristics include:
– ultra-high strength
– ductility
– durability
– highly moldable/flowable/dry-cast
• excellent form replication
– aesthetic design flexibility, quality surface aspect
What is Ultra-High Performance Concrete?
• “Materials with a cement matrix & characteristiccompressive strength in excess of 22,000 psi,possibly attaining 36,000 psi, and containingfibers in order to achieve ductile behavior undertension and, if possible, to dispense withpassive (non-prestressed) reinforcement.”(1)
• “UHPFRC differs from HPC by:
– compressive strength > 22,000 psi (150 MPa);
– systematic use of fibers to ensure non-brittle, and;
– high binder content & special aggregates.”(1)
(1) Source; SETRA “UHPFRC Recommendations”, January 2002.
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It Can Provide:
• Compressive strengths up to 30,000 psi;
• Flexural strengths up to 6,000 psi;
• Direct tension up to 1,450 psi;
• Ductility;
• greater capacity to deform and support flexural
and tensile loads, even after initial cracking.
• Abrasion resistance similar to natural rock and;
• Impermeability
• almost no carbonation or penetration of chlorides
Note: Not all UHPCs provide all of these properties.
Mass (weight) of Beams
kg/lineal meter 140 112 467 530
lbs/lineal ft. 94 75 313 355
Steel
Pre-stressed
Reinforced
Concrete
Beams of Equal Load Carrying Capacity
UHPC
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2,000 lb car on a
1¼-inch UHPC sheet
Ductal®
HPC
0
5
10
15
20
25
30
35
40
45
50
0.0 0.5 1.0 1.5 2.0
Deflection (mm)
E q u i v a l e n t S t r e s s
( M P a ) UHPC
HPC 80
Ductility
UHPC
HPC
shear + no place for fibers! Modified compact grading
NORMAL CONCRETE UHPC
20 mm
0.4 mm
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00.08 inchesCarbonation
(depth of penetration)
0.020.5X10-12
m2/sChloride ion diffusion
030010-6
Post-curing
shrinkage
1.22.75Index I Abrasion
(relative volume loss)
100%90%%Freeze-thaw
(E-mod after 300 cycles)
Ductal(2% Steel Fibers
190oF Thermal
Treatment)
HPC(9000 psi)
Durability
U.S. Army Corp of Engineers
Long-Term Exposure Site
Three samples of UHPC installed in 1996. Exposure:
500 freeze/thaw cycles, 4500 wet/dry cycles in saturated
sea water and high abrasion from waves and ice!
Treat Island, Maine, USA
Durability
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UHPC
replicates texture,
form and shape.
Finished products are
available in a range
of colors and provide
new freedoms in
architecture.
Aesthetics
• MIT - 2-D and 3-D Modeling
• Ohio University - Pullout Tests for Strand
• Iowa State Universit y - Seismic Modeling
– Short Term, High Amplitude, Low Frequency Response
• Michigan Technological University - Size Effects
• University of Calgary – Long Term Durability & Hybrids
• Virginia Tech – Punching Shear/Horizontal Shear
• Georgia Tech – Full Scale Beam Tests
• University of New Brunswick – Durability -Treat Island (US Army Corp)• University of Central Florida – Thin Deck Panels
• University of Arkansas – Bond Development Lengths
• University of Central Florida – Rib Bridge Deck Panels
• Columbia University – Form and Function
Collaborations
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PROJECTS/PRODUCTS
Where is UHPC Used?
Shells & Canopies
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Architectural
Cladding
Architectural Cladding
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120m2 of Wall Panels
2.5m x 1.6m x 25mm
Restoration
Sun Shades & Louvers
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Lattice Panels
Perforated Panels
2.3 m x 1.9 m x 20 mm thick
UHPC Acoustical Panels
2.3 m x 1.9 m x 20 mm thick
Panels cast with rectangular holes.
(15mm thickness; holes 15mm x
15mm.)
Sedan
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Decorative Art
National Accounts Branding
Under Armour
Yves St-Laurent
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Urban Furniture
Interior Decor
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Stairs
UHP
CUHP
C
UHPC
Stainless Steel & Black Steel Replacement
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Anchor Blocks
• Safety vaults for US and Canadian markets.
• High impact-resistant containers for material storage.
• Impact resistant containers for the military.
• Explosion protection wall panels for high security buildings.
Security Applications
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Piling Applications
Pedestrian/Bicycle Bridges
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Highway Bridges
Pi-Girder Bridge, McLean, VA
Wapello, IA
Cat Point, VA
Jackway Pi-Girder Bridge, IA
Full Depth Waffle Deck Panels
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Joint Fill
Girders with 1” stay-in-place UHPC forms
Stay-in-Place Deck Panel/Forms
May be used for
highway or pedestrian
bridges as partial or
full depth panels.
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How is UHPC Used?
Semi-Closed-Rotational
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Semi-Closed-Rotational
UHPC
UHPC
UHPC
Semi-Closed-Rotational
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Semi-Closed-Rotational
Displacement
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Displacement
Injection
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Injection point
Injection
Injection
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The Future…
• The future of this material technology is limited only by the imagination ofarchitects, engineers, builders and entrepreneurs.
• As new, complimentary equipment and tools are developed, the materialtechnology will flourish.
• Shells/decks/panels
• Longer, more
graceful spans
• Higher, more
slender structures
Thank You for Attending! Any Quest ions?
Presenter’s Name: Vic Perry
Company: Lafarge North America
Phone: 1-866-238-2825
Email: [email protected]
This concludes the American Institute of Architects
Continuing Education Systems Program.