NATIONAL COUNCIL FOR CEMENT AND BUILDING MATERIALS (NCCBM)

Phase quantification of Indian industrial clinkers containing minor oxides

Minor oxides in kiln feed influence the kinetics of clinker formation, mineralogical composition, polymorphism of clinker phases and other properties of clinker. Investigations on the phase quantification of industrial clinker samples containing minor oxides are presented in this paper. A comparative evaluation of different methods for quantification of clinker mineral phases was made. Typical industrial clinker samples were subjected to XRD analysis for qualitative and quantitative mineralogy. Distribution of minor oxides in the clinker phases was investigated by SEM-EDXA. The Bogue and Taylor methods were employed to calculate the phase contents of clinker samples and the values were compared with the results obtained from experimental technique.

1 Introduction

Increasing concern regarding Green House Gas (GHG) emissions combined with economical benefits lead the cement manufacturing sector, one of the energy intense sectors, to use various industrial waste materials and by-products. Assimilation of unconventional minor oxides, from different industrial waste streams, in clinker phases significantly affects the properties of cement. Presence of low concentrations of certain elements may influence the clinker phases to a large extent resulting in unforeseeable changes in the performance characteristics of cement. 

Chemical composition of...

Related articles:

Issue 4/2015 DALMIA INSTITUTE

Cement quality control system: ­application of X-ray diffractometry

1 Introduction The main features of a cement quality control system involve raw mix composition, burning of the cement clinker, fineness and finally the strength of the cement produced. The ultimate...

more
Issue 12/2009

Influence of calcium sulfate and calcium hydroxide on the hydration of calcium sulfoaluminate clinker

1 Introduction The production of Portland cement clinker counts for about 5??% of the total man-made CO2-emissions. A promising low-CO2 alternative is the production of alternative clinkers based on...

more
Issue 12/2019 DALMIA CEMENT BHARAT LTD

Influence of the mineralogy and microstructure of clinker on its grindability – an Indian perspective

1 Introduction Portland cement clinker is a combination of minerals formed during the burning process and solidified from the liquid phase. One of the important properties, which is of significant...

more
Issue 4/2014 HACETTEPE UNIVERSITY, ANKARA/TURKEY

Use of ultrafine marble and brick particles as alternative raw materials for clinkerization

1 Introduction Scientists have long been investigating alternative methods to control the cement quality for chemical reasons and to develop new methods to provide understanding of the chemical...

more
Issue 3/2020 UNIVERSITY OF THE WITWATERSRAND

A novel approach in the assessment of carbonate rock types for calcination in modern vertical kilns in Southern Africa

1 Introduction In Southern Africa, the most recent large-scale lime kiln projects have seen the installation of modern vertical kilns instead of rotary kilns which have mainly been used since the...

more