dr wayne performance specifications 2012 geo congress (v2)

TYPICAL GEOGRID SPECIFICATIONS

Relevancy of Material Properties in Predicting the Performance of Geogrid Stabilized Roadways

Mark H. Wayne, Ph.D., P.E., MASCEStephen Archer, P.E.

20 YEARS

MATERIALSELECTION BY

SPECIFICATION PERFORMANCE

* Robert M. Koerner (2012-01-16). Designing with Geosynthetics - 6th Edition Vol. 1 (Kindle Locations 1590-1591). Xlibris. Kindle Edition.

TEXAS DOT

MATERIAL INDEX PROPERTIES

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0 5 10 15 20 25 30 35

Traffi

c Ben

efit R

atio

(TBR

)

Tensile strength at 5% strain (kN/m)

MATERIAL INDEX PROPERTIES

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0 50 100 150 200 250 300

5% Secant modulus (kN/m) MD

Pav

emen

t L

ife

Ben

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Van Gurp, C.A.P.M.,. de Haan, P.F. en Wennink, P.M., Voorspelling van verbeterend effect van geokunststofwapening in een wegfundering – Analyse van literatuur onderzoek. Rapport e00288-2. KOAC•NPC. Apeldoorn, November 2000.A rough translation of the title: Prediction of improving effect of geosynthetics reinforcement in a granular base – analysis of literature research

FEDERAL HIGHWAY ADMINISTRATION

UNPAVED ROAD DESIGN

APERTURE STABILITY

AASHTO STANDARD PRACTICE

PAVED ROAD DESIGN

CALL TO ACTION

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EVALUATE CURRENT PRACTICE

WRITE PERFORMANCE BASED SPECS

QUESTIONS