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STRUCTURAL BEHAVIOUR OF TENSAR REINFORCED PAVEMENTS AND SOME FIELD APPLICATIONS. POLYMER GRID REINFORCEMENT: PROCEEDINGS OF A CONFERENCE SPONSORED BY THE SCIENCE AND ENGINEERING RESEARCH COUNCIL AND NETLON LTD AND HELD IN LONDON 22-23 MARCH 1984
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1985
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Highway PavementPavement EngineeringReinforcement MaterialEngineeringPavement MaterialsPavement DesignPolymer Grid ReinforcementStructural PerformanceStructural EngineeringGeotechnical EngineeringFlexible PavementPavementsTest MethodsFoundation EngineeringSome Field ApplicationsTensar GeogridsReinforced ConcreteGeotechnical PropertyCivil EngineeringGeomechanicsStructural MechanicsConstruction EngineeringTensar Reinforcement
The concept of reinforcing flexible pavement has recently become a viable option with the availability of Tensar geogrids. Depending upon the traffic, environmental, subgrade and pavement material conditions, reinforcement may be considered for the surface, base or subgrade layers. A comprehensive program of analytical and full-scale model experiments has been conducted to evaluate the structural behaviour of Tensar reinforced asphalt pavements. In addition, a field programme of using Tensar geogrids in pavement spot improvements and trench cuts has been carried out. The results of the work show that: a) reinforced pavement sections can carry up to three times the number of loads for equal thicknesses, or substantial thickness reductions are possible if the criterion is equal number of loads carried, b) reinforcement has a relatively more significant effect under weak subgrade conditions, c) elastic layer theory can be used to describe the behaviour of reinforced pavements, and d) the use of Tensar reinforcement in pavement spot improvements and trench cuts was very effective. For the covering abstract of the symposium see IRRD 284425. (Author/TRRL)