Presented at the AEMA-ARRA-ISSA Annual Meeting February 19-23, 2013 Renaissance Esmeralda Resort Indian Wells, California Ben Berkach Superintendent, PSI Technologies Inc. February 21, 2013 Modeling Micro Surfacing Rut Fill as a Structural Treatment to Reduce Surface Shear Strain
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Presented at the AEMA-ARRA-ISSA Annual Meeting February 19-23, 2013
Renaissance Esmeralda Resort Indian Wells, California
Ben Berkach
Superintendent, PSI Technologies Inc.
February 21, 2013
Modeling Micro Surfacing Rut Fill as a Structural Treatment to
Reduce Surface Shear Strain
• PSI Technologies Inc. – Dr. Roberto Soares – Rielle Haichert, P.Eng. – Diana Podborochynski, E.I.T. – Vanessa Garcia – Katelyn Broda – Dr. Curtis Berthelot, P.Eng.
• Morsky Construction • Saskatchewan Ministry of Highways
and Infrastructure
ACKNOWLEDGMENTS
PSI TECHNOLOGIES INC.
• Founded and based in Saskatoon, SK Canada.
• Originated as a Transportation Infrastructure Engineering Consulting and Construction company in 1998.
• PSI Technologies is unique in that we specialize in Engineering and Construction Services.
• Engineering Services include Asphalt, Aggregate and Soils (QA/QC) Testing, Transportation Infrastructure Services, Project Management and Structural Asset Management (HWD & GPR).
• PSI Technologies Central Laboratory is CCIL Certified in Aggregate Testing (Type C & D).
• Construction Services include Crushing Operations, Culvert Replacement, Road Construction, Demolition & Recycling and Subsurface Drainage Systems.
• PSIPave3D™ Mechanistic Road Modeling.
• Find out more by visiting our website: http://www.psitechnologies.ca/
PSIPAVE3D™ ROAD MODEL •Advanced 3D Model Incorporates Varying Geometry, Road Layer Thicknesses, Materials, Load Spectra, Load Types, Climatic Conditions, etc.
o Uses mechanistic material properties to assess the fundamental mechanistic primary responses directly related to long term pavement performance.
CONCLUSIONS • Micro Surfacing Rut Filling is a Structural Treatment in the
sense of reducing surface related distresses that can accelerate structural failure.
• Micro Surfacing reduced strains at top of the HMAC Layer. – Horizontal Strain reduced by 62% – Shear Strain reduced by 47% – Micro Surfacing also appears to demonstrate structural
properties by reducing vertical deflections up to 24% where apriori deflections are > 1.0 mm.