公开(公告)号：US20190003945A1

公开(公告)日：2019-01-03

申请号：US15557758

申请日：2017-01-16

Applicant: CSIR

Inventor： Frederick Christoffel Rust ,  Morris De Beer

IPC: G01N3/36 ,  G01N33/42

Abstract: A method of testing pavement includes repeatedly simulating wheel loading on the pavement by repeatedly applying a plurality of discreet forces with a downwards component, in series and one after the other, to an upper surface of a test strip of the pavement thereby to simulate a load exerted by a travelling wheel and hence subjecting the pavement to accelerated testing. Also provided is an accelerated pavement testing device (10) which includes a carrier (12) and an array of actuators (16) carried by the carrier (12) and configured each rapidly and repeatedly to apply a discrete force with a downwards component to an upper surface of a test strip of pavement. Each actuator (16) is associated with at least one force transfer element or sole (22) configured in use to transfer said discreet force from the actuator (16) to pavement being tested thereby to simulate a load exerted by a travelling wheel to the test strip of pavement and hence to subject the pavement to accelerated testing.

公开(公告)号：US10768084B2

公开(公告)日：2020-09-08

申请号：US16662927

申请日：2019-10-24

Applicant: CSIR

Inventor： Frederick Christoffel Rust ,  Morris De Beer

IPC: G01N3/36 ,  G01N33/42 ,  G01N3/08 ,  G01N3/32 ,  E01C19/34

Abstract: A method of testing pavement includes repeatedly simulating wheel loading on the pavement by repeatedly applying a plurality of discrete forces with a downwards component, in series and one after the other, to an upper surface of a test strip of the pavement thereby to simulate a load exerted by a travelling wheel and hence subjecting the pavement to accelerated testing. The discrete forces are provided by repeatedly actuating a series of actuators, one after the other, each to exert a force with a downwards component to the upper surface of the test strip of pavement, or to a portion thereof.

公开(公告)号：US20200056969A1

公开(公告)日：2020-02-20

申请号：US16662927

申请日：2019-10-24

Applicant: CSIR

Inventor： Frederick Christoffel Rust ,  Morris De Beer

IPC: G01N3/36 ,  G01N3/32 ,  G01N3/08 ,  G01N33/42

Abstract: A method of testing pavement includes repeatedly simulating wheel loading on the pavement by repeatedly applying a plurality of discrete forces with a downwards component, in series and one after the other, to an upper surface of a test strip of the pavement thereby to simulate a load exerted by a travelling wheel and hence subjecting the pavement to accelerated testing. The discrete forces are provided by repeatedly actuating a series of actuators, one after the other, each to exert a force with a downwards component to the upper surface of the test strip of pavement, or to a portion thereof.