FLEXURE

Benkelman Beam

EKE 566-1:

Benkelman Beam Test Apparatus

Benkelman Beam - Digital

EKE 566-1D:

Benkelman Beam Test Apparatus

•    Light weight aluminium construction.
•    Ease of transportation.
•    Unique telescope Design, simplifying field set up.
•    Compact, thereby reducing the amount of storage space needed.

Benkelman Beam utilizes the technique of using balanced beam in conjunction with suitable vehicle to measuring road flexure.
The improved Benkelman beam is a convenient, accurate device for measuring the deflection of flexible pavements under moving wheel loads, Operating on a simple lever arm principle, the unit consists of a Reference Beam, body, two part probe beam and rear Zero adjust, 

Supplied with Carrying Case

EKE 072D Digital Dial Gauge , 25 mm Travel and 0.001 mm least count

Pavement Dynamic Cone Penetrometer

EKE 567:

•    A simple and robust instrument for rapid in-situ measurement of the structural properties of pavements,
•    Provided fast and efficient method of obtaining information,
•    For continuous measurements up to a depth of 800 mm and 1,200 mm with the extension rod,
•    Portable and can be accommodated in a carrying case,

The Pavement Dynamic Cone penetrometer (DCP) is a very robust instrument, designed for rapid in-situ evaluation of strength of sub-grade and the bases for roads & runway pavements, Continuous measurements can be made down to a depth of 800 mm, or when an extension is fitted, to a depth of 1200 mm, Where pavement layers have different strengths, the boundaries can be identified and the thickness of the layers determined. A typical test takes only a few minutes and the instrument therefore, provides a very efficient method of obtaining information which normally require test-pits, Correlations have been established between measurements with DCP and California bearing ratio (CBR) so that the results can be interpreted and compared with CBR specifications for pavement design, Agreement is generally good over most of the range but differences are apparent at low values of CBR, especially for fine grained materials,

The design of the pavement DCP is similar to the one described by kleyn, maree and savage (1982) in their paper “ The application of the pavement DCP to determine the bearing properties performance of road pavements” published in proceedings of international symposium on bearing Capacity of roads and Airfields, Vol.i. (the Norwegian institute of Technology) and developed by TRRL,UK, It incorporates a 8 kg weight dropping  through a height of 575 mm and a 600 cone having a diameter of 20 mm, it is supplied  complete with assembly tools and weighs 20 kg approx,

The CDP needs three operators, one to hold the instruments, other to rise and drop the weight and a technician to record the results, the instrument is held vertically and the weight carefully raised to the handle limit and then allowed to fall into the anvil.

The equipment consists of:
EKE 56701: Top and bottom Rod.
EKE 56702: Handle
EKE 56703: Hammer
EKE 56704: 1 m Scale
EKE 56705: 600  Cone 
EKE 56706: Anvil 

Supplied with a wooden carrying case