Ultrasonic Testing Of Non Metallic Materials Concrete And Marble

The ultrasonic method can be applied to specimens for new construction and for in situ examination using longitudinal ultrasonic waves.

Ultrasonic testing of non metallic materials concrete and marble.

Elasticity moduli shear moduli and poisson ratio of marbles and concrete have been determined by ultrasonic waves under varied pressure 1. Similar work has been done by vardoulakis 2 and the values obtained. Using the ultrasonic ndt method. Experimental investigation is made to examine the ability of non destructive testing ndt methods for evaluating the integrity of non metallic materials.

The present experimental work will examine the behavior of a 30 year old concrete and a dionysos pentelikon marble using destructive as well as the ultrasonic non destructive testing methods. The upv methods have traditionally been used for the quality control of materials mostly homogeneous materials such as metals and welded connections. Ultrasonic testing of marbles has been examined by several researchers 1 6. As ultrasonic wave velocity is sensitive to microstructural factors such as microcracks and porosity it has been widely used to evaluate the microstructural state of solid materials e g.

C 2004 elsevier ltd. In particular the dynamic moduli of elasticity and damage states due to fracture are studied. Among the known methods the ultrasonics seem to stand out because the method could be used to determine many properties of the material. Examined in the work are construction materials such as concrete and marble.

Examined in the work are construction materials such as concrete and marble.