Premature damage of mortar and concrete structures, due to environmental action, demands
procedures to estimate durability of this type of components. Mortar or concrete composition …

The increasing number of concrete structures with symptoms of premature deterioration due
to environmental action demands procedures to estimate the durability of this type of …

The relationship between porosity and ultrasonic parameters of mortar was studied. In order
to enhance the sensitivity of the ultrasonic wave to microstructural changes, a high …

Degradation of concrete structures located in high humidity atmospheres or under flowing
water is a very important problem. In this study, a method for ultrasonic non-destructive …

Mechanical properties of concrete and mortar structures can be estimated by ultrasonic non-
destructive testing. When the ultrasonic velocity is known, there are standardized methods …

Ultrasonic testing is a technique frequently used in the field of NDE given the fact that
ultrasonic waves are directly related to the mechanical behavior of materials. It is for this …

In this paper, a new approach for characterizing material damage, using ultrasonic waves, is
proposed. Two concrete series with two types of cement with different C 3 A content and …

In order to use nondestructive techniques (NDT) for the survey of reinforced concrete
structures, it is important to show that they are able to measure the cover concrete …

Durability of concrete depends strongly on porosity; this conditions the intensity of the
interactions of the concrete with the aggressive agents. The pores inside the concrete …

In the context of a growing need for safety and reliability in Civil Engineering, acoustic
methods of nondestructive testing provide answers to a real industrial need. Linear …