INFLUENCE OF ULTRAFINE GROUND FLY ASH ON THE MICROSTRUCTURE AND PROPERTIES OF CEMENTITIOUS MATERIALS
Myroslav SANYTSKY1, Bohdan RUSYN1, Jacek HALBINIAK2, Joanna SZYMAŃSKA2
1Lviv Polytechnic National University, Ukraine
2Czestochowa University of Technology
BoZPE 2013;(2):96–102
Article (PDF)
KEYWORDS
ultrafine fly ash, microstructure, cementitious system, flowability, mechanical strength
TOPICS
Building materials, Construction and engineering constructions
ABSTRACT
The influence of the process of mechanical activation in electromagnetic mill on the properties of fly ash are shown. The effect of ultrafine fly ash and chemical admixtures of polyfunctional action on the properties of cementitious materials was investigated. It was observed that combination of such complex chemical admixtures and ultrafine fly ash provides the reaching of technological, technical and economi- cal effects in сoncretes. The using of fly ash ultrafine particles gives the possibility of manipulation and control of properties of cementitious materials and design of High Performance Concretes new generation on their base.