Advanced testing system to perform compression elastic modulud on concrete

This advanced control system is concerned essentially with the automatic compression, flexural and splitting tests on concrete and determinations of Elastic Modulus and Poisson’s ratio.

Essentially the system consists of an ergonomic console which houses the power unit and the digital control unit. The system must be connected to suitable testing frames (2000 or 3000 kN).

For the determination of the Modulus of Elasticity the specimen has to be submitted to a sequence of loading and unloading cycles under controlled load rate. A high performance valve included in the hydraulic system shall control the oil flow with precise increments and decrements and measure longitudinal and transverse deformation. A laser position detector allows a rapid positioning of the piston and a very accurate touch point.

This grants a touching sensitivity of test starting of about 0,1 per thousand of the maximum capacity. The high performance control and data processing unit controlled by a 32 bit microprocessor can manage up to 8 high resolution channels for the control of load cells or transducers with strain gages bridge.

The software has been developed on the working line of the Windows menú. This software provides a complete control of the system for automatic test execution: rapid platen approach, zeroing, application of user-defined cycles of load/unload ramps, identification of the failure load, verification of conformity to the selected Standard, calculation of results, graphical and numerical management of results.

For determination of young Modulus and Poisson’s ratio the software allows user-defined test cycles and stepprogrammable
sequences. Also software gives the possibility to print on a standard printer a test certificate reporting all the data concerning the test and the specimen and the graph of the test.

Compression machine, strain gauges or compressometer are not included and must be ordered separately.