Abstract：
: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 component. Concrete durability is related to porosity, which determines the intensity of interactions of the material with aggressive agents. The pores and capillaries inside the structure facilitate the destructive processes that generally begin in the surface. In this work, an ultrasonic NDE technique to estimate the porosity of concrete is developed. The method is based on the analysis of the mechanical behaviour of mortar probes built with calibrated sand, in which the concentration of water-cement mixture has been varied. In this sense, data of sound velocity are correlated with data of porosity, which have been previously measured by destructive measurements.
journal_name
Ultrasonicsjournal_title
Ultrasonicsauthors
Hernandez MG,Izquierdo MA,Ibanez A,Anaya JJ,Ullate LGdoi
10.1016/s0041-624x(99)00095-5subject
Has Abstractpub_date
2000-03-01 00:00:00pages
531-3issue
1-8eissn
0041-624Xissn
1874-9968pii
S0041-624X(99)00095-5journal_volume
38pub_type
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