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benkel beam

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benkelman beam calculation1)Materials Required for deflection measurement are ,BENKELMAN BEAM deflection measuring device,dial guage with least count .01mm , are b2)Thermometer, rapid moisture device,tools for cutting the pavement up to the subgrade level&to collect soil samples from subgrade for moisture content determination,measuring tape,3)glycerol,chalk for marking on the pavement,observation sheets

Benkelman beam test

Dial guage readingcorrection factorSlNo(n)loctaion of test point & LanePavement tempINITIAL (Do)INTERMEDIATE (Di)Final (Df)Di-DfDo-DfRebound deflection in (mm) if Di-Df>2.5Rebound deflection in (mm) if Di-Df