COMPARISON OF HYDRATION PRODUCTS OF DIFFERENT POZZOLANIC SYSTEMS

摘要

Hydration of different pozzolanic materials results in hydration products with varying amount andrnproperties. Consequently, properties of cements with different pozzolanic materials arernconsiderably changed. Therefore, to understand hydration mechanisms and the properties ofrnhydration products of different pozzolans is of main importance. To evaluate these differences,rnthe current study is designed. In the study, four types of pozzolan representing wide range of suchrnmaterials (C and F Class fly ashes, granulated blastfurnace slag and natural pozzolan) were usedrnand mixed with lime. Lime- pozzolan mixtures were investigated for quality and quantity ofrnhydration products, pozzolanic activity and microstructure points of view. For this purpose ,rnscanning electron microscopy with energy dispersive analyser, thermogravimetric analyser andrnphysical-mechanical testing techniques were used. In the studies by these equipment andrntechniques, morphology of the hydration products, pozzolanic activities of pozzolans wererninvestigated in a detailed manner.