Standard Guide for General Pavement Deflection Measurements

Importancia y uso:

5.1 NDT measurement of pavement surface deflections provides information that can be used for the structural evaluation of new or in-service pavements. These deflection measurements may be used to determine the following pavement characteristics:

5.1.1 Modulus of each layer.

5.1.2 Overall stiffness of the pavement system.

5.1.3 Load transfer efficiency of PCC pavement joints.

5.1.4 Modulus of subgrade reaction.

5.1.5 Effective thickness, structural number, or soil support value.

5.1.6 Bearing capacity or load carrying capacity of a pavement.

5.2 These parameters may be used for the analysis and design of reconstructed and rehabilitated flexible and rigid pavements, pavement structural adequacy assessment including joint efficiency of PCC pavement, void detection in PCC pavement, research, and/or network structural inventory purposes.

Subcomité:

E17.41

Referida por:

D4694-09R25, E2583-07R25, E2835-21, D5858-96R25, E1777-09R24, D7228-06AR25

Volúmen:

04.03

Número ICS:

93.080.20 (Road construction materials)

Palabras clave:

Benkelman beam; deflection sensor; deflection surveys; falling-weight deflectometer (FWD); impulse deflection testing device; load cell; load/deflection testing; nondestructive testing (NDT); pavement surface deflection; pavement testing; sampling frequency; static deflection testing device; steady-state dynamic deflection testing device;