Geopolymer Lining of Large- Diameter Box Culvert and Storm ...
Transcript of Geopolymer Lining of Large- Diameter Box Culvert and Storm ...
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Geopolymer Lining of Large-Diameter Box Culvert and
Storm System in Memphis, TNJoe Royer, Ph.D – GeoTree Solutions
Bill Sharpe – Inland Pipe Rehab
July 13th, 2021
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Presentation Outline
• Overview of Geopolymers and Spray Applied Linings (SAPL)
• Memphis Project Overview and Details• Initial Inspection• Design Principles• Pipe Preparation (Surface and Infiltration)• Geopolymer Spray Application• Inspection and Quality Control
• Lessons Learned and Project Completion
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Geopolymer Overview
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Geopolymer Overview• Not a Plastic
• Not HDPE/PVC/Epoxy
• Looks and feels like cement
• Workability
• Material Properties
• Service Life
• Chemical structure like natural stone
• Monolithic
• Durable
• Corrosion Resistant
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Project Overview
AW Willis / Crosstown Culvert Rehab
• 1000 linear ft of 8ft Concrete Box Culvert (2018)
• 1300 linear ft of 54” RCP (2020)
• Project Awarded 2017
• Box culvert and RCP piped lined with 1.5” geopolymer mortar
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Project Location
MH1
MH2
MH3
MH4
MH5
MH6
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Existing Site Conditions
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Site Prep - Cleaning
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Site Preparation – Surface Prep
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Site Preparation – Surface Prep
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Site Preparation – Surface Prep
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Site Preparation – Surface Prep
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Site Preparation – Surface Prep
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Site Preparation – Surface Prep
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Design PrinciplesFully Deteriorated: Soil, Hydraulic & Live
Most large box structures will not require FD design. The existing structure is often capable but spalling, steel corrosion and erosion are the driving concerns.
Partially Deteriorated: Hydraulic Only
“Structural Enhancement”: Composite design intended to return the structure to its original structural state.
Design: Replace Corroded Steel (As), Replace Spalled Material, Protect
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Above Ground Job Site
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Geopolymer Lining Application
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Depth Gauge, Thickness Verification
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Application in Progress
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Completed Geopolymer Lining
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Completed Geopolymer Lining
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Stopping Infiltration and Touch Up
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Quality Control
Design Thickness
Inspections
Material Properties
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Questions?Joe Royer
[email protected](864)-320-0439www.geotreesolutions.com
Bill [email protected](713)-542-0373www.teamipr.com