in stabilization emerging of 3...pete craig allterra construction ltd in situ stabilization and the...
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Pete CraigALLTERRA Construction Ltd
In Situ Stabilization and the Emerging World of In‐Situ 3‐D Environmental Construction
www.vertexenvironmental.ca
SMART RemediationVancouver, ON
February 11, 2016
SMART isPowered by:
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In Situ Stabilization and 3-D Environmental
Construction
Smart Methods in Advanced Remediation Technologies (SMART)VancouverFebruary 11, 2016
www.allterraconstruction.ca●250.658.3772 ●[email protected]●2158 Millstream Road, Victoria, BC V9B 6H4
Concepts for the Future of Ground Improvement
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State of the Practice:Solidification/Stabilization (S/S)and Isolation
Solidification – bind target in a solid block of low permeability material
Stabilisation – transform contaminants and reduce leachability
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Isolation - cut off contaminants from receptors
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EPA-542-R-07-012 (2005 Data)
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Portland cement, cement kiln dustFly ash - Class F and C (pozzolanic fly ashes)Lime - quicklime, hydrated lime, lime kiln dustSlag - ground granulated blast furnace slagSilicate, (super) phosphate, sulfateProprietary mixturesActivated carbonOrganoclay®
EnviroBlend®
Bentonite, ZVI/Bentonite
Reagents
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Excavator-mounted Soil Mixers
• Stick-mounted head & feed system• Walls to 7m+• High rate bulk (mass) mixing• Position, energy and dose control• Low vibration, fast• New heads, techniques
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3D Construction
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Yingchuang (WinSun), Shanghai, 2015
MX3D, Amsterdam
Contour CraftingUSC (Behrokh Khoshnevis)
WASP Project, Italy
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Contour CraftingUniversity of Southern CaliforniaViterbi School of Engineeringhttp://www.contourcrafting.org/(Behrokh Khoshnevis)
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Design Space Construction Space
“Cyberspace” “Meat Space”
• Modelling, simulation and scenario analysis• Visualization & fly-through for stakeholders• Accurate schedules, sequencing and quantities• Lean crews• Faster setup• No forms• Precise work• Detailed progress information• Extensive QA/QC data
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Increased Bearing CapacityReduced SettlementExcavation Support
Seepage ControlSeismic Stability
StabilisationSolidification
Isolation
Vancouver Island Conference Centre
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Vancouver Island Conference CentreSubsurface
(2006: Golder/GAIA)
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www.allterraconstruction.ca●250.658.3772 ●[email protected]●2158 Millstream Road, Victoria, BC V9B 6H4
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Select Resources
Al Tabbaa, Amir, and Julia A. Stegemann (eds). 2005. Stabilisation/Solidification Treatment and Remediation - Advances in S/S for Waste and Contaminated Land. Proceedings of the International Conference on Stabilisation/Solidification Treatment and Remediation, 12-13 April 2005, Cambridge, UK. CRC Press. ISBN 978041537447.
Cement Association of Canada. Remediation of Contaminated Sites. http://www.cement.ca/en/Remediation-of-Contaminated-Sites.html
Conner, Jesse R. 1997. Guide to Improving the Effectiveness of Cement-Based Stabilization/Solidification. Portland Cement Association. ISBN 0-89312-176-2.
U.S. Army Corps of Engineers. 1995. Technical Letter No. 1110-1-158: Treatability Studies for Solidification/Stabilization of Contaminated Material. ETL 1110-1-158.
U.S. Environmental Protection Agency (US EPA). 2013. Superfund Remedy Report, 14th Edition. EPA-542-R-13-016.
US EPA. 2009. Technology Performance Review: Selecting and Using Solidification/Stabilization Treatment for Site Remediation. EPA-600-R-09-148
US EPA. 2007. Treatment Technologies for Site Cleanup: Annual Status Report (Twelfth Edition). EPA-542-R-07-012
Cory Hastings (ALLTERRA)
250.658.3772
Chuck Wilk (ALLU Group)
847.714.2754
Brian Wilson (Pacific Ground Engineering/Norland)
604.205.6866
Brad Warrington (Brandt Tractor Ltd Positioning Technology Division/Topcon)
604.882.8888
Contact Information