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Nondestructive Testing of Pavement Structures
Figure 1-4
Figure 1 - Standard locations of a trailer mounted steady state deflection measurement system's loading wheel and geophones.
Figure 2 - Standard location of an electrohydraulic dynamic force generating system's loading wheel and geophones.
Figure 3 - Typical force output from falling weight deflectometers (time from A to B is variable, depending on drop height): A = time at which weights are released; B = time at which weight package makes first contact: C = peak load reached.
Figure 4 - Typical location of loading plate and deflection sensors for impulse deflection equipment.
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