Field testing device and measuring method for friction resistance coefficient of cement concrete pavement base

The invention discloses an on-site testing device and a measuring method for the friction resistance coefficient of a cement concrete pavement base. The on-site testing device comprises a detachable test mold, a strain sensor, data acquisition equipment and a smooth bottom plate. During pavement construction, a test piece is manufactured on the surface of an on-site base layer, a contrast smooth bottom surface test piece is arranged, a strain sensor is used for monitoring strain change of the test piece under temperature change, a strain and temperature time-varying curve and a strain-temperature fitting relation graph on the tth day of the age are drawn, and the quality and the cross sectional area of the test piece are measured. And calculating the friction resistance coefficient of the base layer according to internal and external force balance by utilizing the constraint difference between the smooth bottom surface and the rough bottom surface. The device has the advantages of simplicity in installation,