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Effect of cold bonded fly ash aggregates on strength & restrained shrinkage properties of concrete

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3 Author(s)
Priyadharshini, P. ; Struct. & Geotech. Eng. Div., Vellore Inst. of Technol., Vellore, India ; Mohan Ganesh, G. ; Santhi, A.S.

Concrete is a mixture of cement, fine and coarse aggregates, in which aggregates occupy the major volume. Also, the strength of concrete varies with the type of aggregate used. In Recent days, the scarcity of aggregates due to the massive development in infrastructure field made the researchers think about an alternate source of concrete materials. Economical and environment friendly way is to consider the usage of industrial waste as a substitute material. Fly ash is already studied in a mammoth level for its potential to be used as a cement replacement material. Here in this study, the feasibility of usage of coarse aggregate made of fly ash is studied for its restrained shrinkage property in concrete. For the purpose of experimentation concrete mixes are designed for M40 grade by 30%, 60% and 100% replacement of natural gravel to fly ash aggregates as coarse aggregates in concrete. Compressive strength, Rise in temperature and plastic shrinkage tests are conducted to study the strength and restrained shrinkage property of concrete using fly ash aggregates and the results are compared with that of concrete with natural gravel.

Published in:

Advances in Engineering, Science and Management (ICAESM), 2012 International Conference on

Date of Conference:

30-31 March 2012