Mechanical behaviour and durability of high volume fly ash cementitious composites
作者： Lubomír Kopecky , Petr Bittnar , Jiri Nemecek , Asif Ali , Jaroslav Pokorny
关键词:
摘要: The purpose of this research is to separate different morphological particles ASTM class F fly ash, and study their effect on mechanical behaviour durability high volume cementitious mixtures. In wet separation raw ash carried out, which resulted in three layers particles. first layer float, comprise about 1-5% identified as cenospheres or hollow spheres. second measured be 55-60% consisting porous spherical rounded rich Si Al. third 35-40% ash. High composites containing are tested under compression bending, highlighting a higher strength ductility comparison ones KEYWORDS. Cementitious matrix; Raw ash; Second particles; Third
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