ABSTRACT
The evaluation of the properties ofFRC composites is of prime importance for these composites to be used effectively and economically in practice. Some of these properties are largely matrix dependent, and can be measured by the methods commonly used for conventional concrete, for example, compressive strength and freezethaw durability. Other properties, however, depend much more on the presence of fibres and on the fibre-matrix interactions. These properties are quite different from those of the matrix itself, and must be evaluated by test methods which are quite different from those used for plain cements and concretes. It is these properties that are of the greatest interest here, since they represent the areas in which the addition of fibres leads to significant improvements in properties such as toughness, crack control and impact resistance. This chapter deals only with this second type of tests, that is, tests which are particular to FRC. Some of these have been developed to the level of standard test methods adopted by ASTM, EN, ISO as well as other international and national agencies, while others are still used mainly for research or in special cases in practice. The significance of the various test methods will be outlined, indicating their importance and discussing their limitations.
