CRT-CTM250-II Compression Testing Machine
High Modulus Asphalt Testing System
    Model:CRT-CTM250-II
    Country of Origin:Cooper U.K.
    Use:Duriez assessment of moisture susceptibility; Measurement of Tensile Strength and Marshall Stability
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The CRT-CTM250-II was developed to perform a variety of compressive strength tests including
Duriez, Indirect Tensile Strength and Marshall Stability.

 

A rigid fl oor-standing test frame with bench-height working surface, twin columns and adjustable height cross-head houses a hydraulic cylinder with a load capacity of up to 300kN. The movement of the cylinder is controlled by custom software with feedback from either the stroke transducer or the load cell fi xed to the cross-head. During testing, the machine operator is protected by a safety enclosure.

 

KEY FEATURES
● Highly rigid test frame
● Hydraulic loading under computer control
● Pancake load cell (250kN capacity)
● Innovative quick-release Duriez mould system
● Three position adjustable cross-head height
● Large bench-height working surface
● Can be confi gured for tensile tests if required
● Includes PC preloaded with test software
● Interlocked safety enclosure with clear polycarbonate door
● Supplied with certifi cation of a UKAS accredited calibration
STANDARDS
● EN 12697-12
● EN 12697-23
● NF P98-251-1/4 Duriez
SYSTEM ELEMENT
The CRT-CTM250-II is comprised of:
● A bench-height stainless steel working surface withtwin 70mm? stainless steel columns, spaced 500mm apart
● A moveable crosshead that can be adjusted to provide a working space that has a height of 500 to 750mm
● A 300kN capacity actuator with 380mm stroke that includes an integral displacement transducer
● Variable speed of travel between 50 and 100mm/min
● A low-profi le 250kN load cell fi xed to the cross-head
● High-speed digital closed-loop force or displacement control
● An interlocked safety enclosure that has a clear polycarbonate door
● Concealed hydraulics
● Integrated PC with preloaded software

 

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