Gomathi S

Department of General Management

VIT Business School

Vellore Campus

Sivakumar A

Department of Chemistry

School of Advanced Sciences

Fulltext

Vellore Institute of Technology (VIT) is a private university located in&nbsp;Tamil Nadu, India. Founded in 1984, as Vellore Engineering College, the institution offers 20 undergraduate, 34 postgraduate, four integrated and four research programs. It has campuses in Vellore, Amravati, Bhopal and Chennai.

VIT is one of the top ranked private universities in India according to NIRF, THE and QS Rankings.&nbsp;Govt. of India has recognized&nbsp;VIT, Vellore as an&nbsp;Institution of Eminence. This has allowed VIT to take independent quality initiatives and move up in world ranking.

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VIT University

Research Journal of Applied Sciences, Engineering and Technology

Construction and Building Materials

New approach for shrinkage prediction of high-strength lightweight aggregate concrete

Journal of Hazardous Materials

Effects of lightweight fly ash aggregate properties on the behavior of lightweight concretes

This paper discusses the influence of normal water curing, autoclaving and steam curing on the properties of a typical class-C fly ash aggregate. The 10% fines value, water absorption, and porosity of aggregates are correlated with SEM and XRD results to understand the influence of various factors and material characteristics. An increase in duration of normal water curing significantly improved the aggregate properties. Autoclaving and steam curing resulted in relatively lower enhancement in the properties as compared to normal water cured aggregate. Between the accelerated curing methods, autoclaved aggregate possessed properties closer to the normal water cured aggregate due to the dense microstructure formation. Continuation of normal water curing, after initially subjecting the aggregates to accelerated curing, exhibited only a marginal improvement in the properties. © 2008 Elsevier Ltd. All rights reserved.

Cement and Concrete Composites

Effect of curing method on characteristics of cold bonded fly ash aggregates

Building and Environment

The effects of aggregate properties on lightweight concrete

Sustained research and development work on the utilization of fly ash for various productive uses have been carried out in the past. In the construction industry, major attention has been devoted to the use of fly ash in concrete as a cement replacement. The production of artificial lightweight coarse aggregate using fly ash has potential for its large-scale utilization in the construction industry and this is an area that merits attention in many parts of the world, bearing in mind the rapid dwindling of sources of natural aggregates. As only limited details on manufacture and parameters influencing properties of sintered fly ash aggregates have been reported in the literature, a systematic study was undertaken. In this paper, the relative performance of three binders, viz., cement, lime and bentonite, on the properties of sintered fly ash aggregate is reported. The salient observations are (i) the characterization studies on sintered fly ash aggregates show that the properties of aggregates depend on the type of binder and its dosage, (ii) the significant improvement in strength and reduction in water absorption of sintered fly ash aggregate is observed when bentonite is added with fly ash, (iii) the binders used did not alter the chemical composition, while they influence the microstructure of the aggregate, which results in enhancement in the properties of aggregates. © 2005 Elsevier Ltd. All rights reserved.

Influence of binders on properties of sintered fly ash aggregate

Cold Bonded Fly Ash Lightweight Aggregate Containing Different Binders

Journal	Research Journal of Applied Sciences, Engineering and Technology
Publisher	Maxwell Scientific Publication Corp.
ISSN	2040-7459
Open Access	Yes