Author : K.Sasidhar 1
Date of Publication :8th March 2017
Abstract: The usage of plain cement concrete in construction fields is a regular practice which has benefits on the other hand there are disadvantages also like emission of harmful gases and depletion of natural resources. As a part of remedial measures this project deals with the High volume Alkali Activated FlyAsh Concrete which reduces usage of OPC and increases quality of concrete. For obtaining better performance for FlyAsh, initially it has to be activated by any suitable base solution. The methodology involves partially replacing cement with 60% and 80% of FlyAsh with NaOH as alkali activator of 3M and 4M morality, adding with a variation of 3%, 5% and 7% with respect to weight of FlyAsh is considered. Results obtained after testing different mixes of High volume Alkali Activated FlyAsh Concrete under various tests and procedures of activation binding to IS codes show significant and desirable results when compared to controlled concrete but for final days of curing than initial ones.
Reference :
-
- A Study on Strength and Durability Properties of Alkali Activated Slag and Fly Ash based Geo-polymer concrete‟ by AndiArhamadam, RMIT University, Melbourne, Australia, August 2009.
- „A review of high volume low lime Fly Ash Concrete‟ by Dr. ShirishV.Deo- International conference on biological, Civil and Environmental Engineering (BCEE2014) March 17-18, 2014 Dubai (UAE).
- „Activated Fly Ash cement concrete- resistant to extreme environments yet environmentally friendly‟ by Michael H. Weber- May 2013 Concrete international.
- „ Alkali- activated fly ashes a cement for the future‟ by A. Paloma, M.W. GrutzeckMaterials Research Laboratory, The Pennsylvania State University, University Park, PA 16802, USAReceived 17 September 1998; accepted 8 December 1998.
- „Alkaline Activation of Fly ashes. Manufacture of Concretes not containing Portland cement‟ by A. Palomo and A. Fernandez-Jimenze. Institute EduradoTorroja. 28033 Madrid, Spain.
- „Alkali activated Geo-Polymeric concrete‟ by Franti.ek .kvára, Jan .losar, Jan Bohunek and AlenaMarkováDepartment of Glass and Ceramics, ICT Prague CZ-166 28 Prague 6, Technická 5, Czech Republic.
- „An experimental approach on Geopolymeric recycled concrete using partial replacement of industrial byproduct‟ Lohani T.K, Jena S, Dash K.P, Padhy M international journal of civil and structural engineering Volume 3, No 1, 2012