الفهرس 
REVIEW OF LITERATUREOnly 14 pages are availabe for public view
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Abstract
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INTRODUCTION
Non-Destructive testing provides a means of estimating concrete strength of the structure
itself in site describing the behaviour of the actual erected concrete, while the
laboratory test specimens may not necessarily be representative of the concrete of the
structure. Besides different methods used in Non-Destructive testing <e.g. Schmidit
hammer test ultrasonic pulse velocity test and core test l may lead to some discripency
between each other in determining concrete strength due ·to variation in apparatus and method of
testing.
Therefore, it seems that concrete strength can not be accurately reproducable and a link
between the results of laboratory tests and those of in site Non-Destructive testing
required to state the degree of reliability for each of Non-Destructive test result of
strength as compared to the equivalent compressive strength stated by standard specifications
and codes of practice.
The aim of this research is to express this previously mentioned Iink by illustrating the
values and relations between strengths of different concrete for mixes of variable
proportions of
1ngrad1ents <cement content fine I coarse