Slide 1: UHPC: Redefined and Revolutionized
UHPC: REDEFINED AND REVOLUTIONIZED RICHARD FIRST - PRODUCT MANAGER, MORTARS MARCH 5, 2024
Slide 2: Overview
SIKACRETE®-930 UHPC OVERVIEW ▪ What is UHPC? ▪ Benefits and limitations ▪ Applications ▪ SikaCrete®-930 UHPC ▪ Properties, UVP Shawnessy Light Rail Station Canopy Roof Calgary AB
Slide 3: What is UHPC?
SIKACRETE®-930 UHPC WHAT IS UHPC? UHPC is a cementitious composite material composed of an optimized gradation of granular constituents, a water-to- cementitious materials ratio less than 0.25, and a high percentage ▪ Ultra High-Performance Concrete of discontinuous internal fiber reinforcement. The
Slide 4: What is UHPC?
SIKACRETE®-930 UHPC WHAT IS UHPC? UHPC is a cementitious composite material composed of an optimized gradation of granular constituents, a water-to- cementitious materials ratio less than 0.25, and a high percentage ▪ Ultra High-Performance Concrete of discontinuous internal fiber reinforcement. The
Slide 5: What is UHPC?
SIKACRETE®-930 UHPC WHAT IS UHPC? UHPC is a cementitious composite material composed of an optimized gradation of granular constituents, a water-to- cementitious materials ratio less than 0.25, and a high percentage ▪ Ultra High-Performance Concrete of discontinuous internal fiber reinforcement. The
Slide 6: What is UHPC?
SIKACRETE®-930 UHPC WHAT IS UHPC? UHPC is a cementitious composite material composed of an optimized gradation of granular constituents, a water-to- cementitious materials ratio less than 0.25, and a high percentage ▪ Ultra High-Performance Concrete of discontinuous internal fiber reinforcement. The
Slide 7: What is UHPC?
SIKACRETE®-930 UHPC WHAT IS UHPC? UHPC is a cementitious composite material composed of an optimized gradation of granular constituents, a water-to- cementitious materials ratio less than 0.25, and a high percentage ▪ Ultra High-Performance Concrete of discontinuous internal fiber reinforcement. The
Slide 8: What is UHPC?
SIKACRETE®-930 UHPC WHAT IS UHPC? UHPC is a cementitious composite material composed of an optimized gradation of granular constituents, a water-to- cementitious materials ratio less than 0.25, and a high percentage ▪ Ultra High-Performance Concrete of discontinuous internal fiber reinforcement. The
Slide 9: What is UHPC?
SIKACRETE®-930 UHPC WHAT IS UHPC? UHPC is a cementitious composite material composed of an optimized gradation of granular constituents, a water-to- ▪ Ultra High-Performance Concrete cementitious materials ratio less than 0.25, and a high percentage of discontinuous internal fiber reinforcement. The
Slide 10: Why UHPC?
SIKACRETE®-930 UHPC WHY UHPC? ▪ Complex, intricate shapes ▪ High strength ▪ Fast-track construction ▪ Excellent post-crack toughening ▪ Excellent wear resistance ▪ Excellent impact resistance
Slide 11: Why UHPC?
SIKACRETE®-930 UHPC WHY UHPC? ▪ Complex, intricate shapes ▪ High strength ▪ Fast-track construction ▪ Excellent post-crack toughening ▪ Excellent wear resistance ▪ Excellent impact resistance ▪ Longer service life – 80 years! Hossain, A. & Chang, C. M., (2023) “Life-Cycle Cost Analysis of Ultra High
Slide 12: Where is UHPC used?
SIKACRETE®-930 UHPC WHERE IS UHPC USED? ▪ Bridges ▪ Precast bridge panel connections ▪ Modular superstructural elements ▪ Substructure connections ▪ caps / columns / abutment walls ▪ columns / footers ▪ Shear keys Pre-fabricated bridge deck panel connections ▪ Header joints Ref: FHWA ▪ Overlays
Slide 13: Where is UHPC used?
SIKACRETE®-930 UHPC WHERE IS UHPC USED? Lap-spliced substructure. Hooper Rd. Bridge Ducted UHPC substructure. Ref: FHWA Union, NY Ref: FHWA
Slide 14: Where is UHPC used?
SIKACRETE®-930 UHPC WHERE IS UHPC USED? Semi-integral abutment wall with vertical and Longitudinal connections between double tee girders horizontal connections. Route 31 Bridge, Lyons, NY Ref: FHWA I-81 at Prebble Rd. Syracuse, NY. Ref: FHWA
Slide 15: Where is UHPC used? Bridges
SIKACRETE®-930 UHPC WHERE IS UHPC USED? ▪ Bridges ▪ > 600,000 bridges in US (2013. AAMP) ▪ 200,000 are steel ▪ 235,000 are conventional, reinforced concrete ▪ 108,000 are precast concrete elements ▪ As of 2021, 150 bridges have used UHPC * AAMP – Association for Materials Protection and Performance
Slide 16: Where is UHPC used?
SIKACRETE®-930 UHPC WHERE IS UHPC USED? https://usdot.maps.arcgis.com/apps/webappviewer/index.html?id=41929767ce164eba934d70883d775582
Slide 17: Where is UHPC used?
SIKACRETE®-930 UHPC WHERE IS UHPC USED?
Slide 18: Limitations: Environmental impacts
SIKACRETE®-930 UHPC LIMITATIONS ▪ Environmental impacts: ▪ Cement : silica fume : supplemental material = ▪ 1.0 : 0.25 : 0.25 (ref) ▪ w/cm ratio = 0.2 – 0.3 ▪ Aggregate : cement ratio = 1 – 2 ▪ Fiber content (by volume) = 1 – 2% ▪ Typical UHPC mixes use ~ 40% cement ▪ 266% greater CO2 footprint than
Slide 19: Limitations: Cost
SIKACRETE®-930 UHPC LIMITATIONS ▪ Cost: ▪ UHPC cost is ~ $2,000 / yd3 ▪ Material cost only
Slide 20: Limitations: Labor cost
SIKACRETE®-930 UHPC LIMITATIONS ▪ Cost: ▪ Labor cost ▪ typical, on-site batching is a very inefficient process ▪ lengthy mixing time ▪ ~20 minutes per batch
Slide 21: Performance
SIKACRETE®-930 UHPC ▪ Performance ▪ SCC consistency ▪ f’(c) > 10,000 psi at 24 hours ▪ Able to hold slopes ▪ f’(c) > 22,000 psi at 28 days ▪ Freeze/thaw – 100% RDM @ 300 cycles ▪ > 1,400 psi tensile strength ▪ RCP - < 200 Coulombs
Slide 22: Our UVP? Quality Assurance
SIKACRETE®-930 UHPC WHAT IS OUR UVP? ▪ Quality Assurance ▪ Current solutions are batched on site ▪ Errors can occur ▪ weighing powders ▪ measuring admixtures ▪ Sikacrete®-930 UHPC provides confidence of installed product performance.
Slide 23: Independent performance validation
SIKACRETE®-930 UHPC ▪ Independent performance validation ▪ ISO 9001
Slide 24: Our UVP? Labor Savings
SIKACRETE®-930 UHPC WHAT IS OUR UVP? ▪ Labor Savings ▪ Current solutions are batched on site ▪ Requires time ▪ weighing powders ▪ measuring admixtures ▪ > 100% improvement in efficiency ▪ Sikacrete®-930 UHPC results in lower installed cost
Slide 25: Our UVP? Safety
SIKACRETE®-930 UHPC WHAT IS OUR UVP? ▪ Safety ▪ Current solutions are batched on site ▪ Dust generation ▪ OSHA repsirable quartz considerations ▪ Sikacrete®-930 UHPC incorporates low dust technology
Slide 26: Our UVP? Reduced environmental impact
SIKACRETE®-930 UHPC WHAT IS OUR UVP? ▪ Reduced environmental impact ▪ Increased use of supplemental cementing materials through proprietary technology ▪ Reduced use of Portland cement ▪ Sikacrete®-930 UHPC Ref: Portland Cement Association ▪ CO2 footprint ~ 25% lower
Slide 27: Mixing & Placement of SikaCrete-930 UHPC
SIKACRETE®-930 UHPC MIXING & PLACEMENT OF SIKACRETE®-930 UHPC ▪ Mixing ▪ Pan mixers commonly used ▪ modifications may be required ▪ Drill & paddle recommended for small projects ▪ Collomix XO-55 Duo ▪ 7-10 minute mix time
Slide 28: Packaging & Yield of SikaCrete-930 UHPC
SIKACRETE®-930 UHPC PACKAGING & YIELD OF SIKACRETE®-930 UHPC ▪ 65 LB bag of SikaCrete®-930 UHPC ▪ 44 LB bag of SikaFiber®-6513 UHPC ▪ One “batch” of SikaCrete®-930 UHPC consists of: ▪ 4 bags of SikaCrete®-930 UHPC ▪ ½ bag of SikaFiber®-6513 UHPC ▪ Yield = 2 cubic feet
Slide 29: Summary
SIKACRETE®-930 UHPC SUMMARY ▪ UHPC use is rapidly growing in infrastructure applications ▪ Long-term durability is key benefit ▪ Current approaches use site-batched designs ▪ Pre-packaged solutions offer many benefits, including ▪ worker safety ▪ guaranteed quality ▪ reduced environmental impact ▪ s
Slide 30: UHPC: Redefined and Revolutionized
UHPC: REDEFINED AND REVOLUTIONIZED RICHARD FIRST - PRODUCT MANAGER, MORTARS