Beckman Deflection Instrument, Benkelman Deflection Beam, Pavement Resilient Modulus Tester

Pavement rebound deflection tester / Pavement Benkelman deflection beam

Kev ntsuas ntau:

(1) Txoj kev no yog qhov tsim nyog rau kev ntsuas qhov rov qab deflection ntawm ntau txoj hauv kev thiab pavements los ntsuas lawv cov kabmob tag nrho thiab tuaj yeem siv rau hauv kev tsim cov qauv pavement.

(2) Tus nqi rov qab deflection ntawm txoj kev taug kev thiab cov pavement hloov tau ntsuas los ntawm txoj kev no tuaj yeem siv rau kev xa mus thiab kev lees paub tiav.

(3) Qhov rov qab deflection ntawm pavement ntsuas los ntawm txoj kev no tuaj yeem muab lub hauv paus rau kev tswj xyuas txoj kev loj los tsim txoj kev npaj kho tsheb.

(4) Lub deflection ntawm asphalt pavement yog raws li tus qauv kub ntawm 20 ℃.Thaum kuaj ntawm lwm qhov kub (tshaj li ntawm 20 ± 2 ℃), tus nqi deflection ntawm asphalt pavement nrog lub thickness ntawm ntau tshaj 5cm yuav tsum tau kho los ntawm kub.

Khoom siv: aluminium alloy, ntev: 3.6m, 5.4m, 7.2m

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