waste glass powder as pozzolanic material in concrete
Puli Sai,
Published in International Journal of Advanced Research in Civil,Structural,Environmental and Infrastructure Engineering and Developing
ISSN: 2320-723X Impact Factor:1.7 Volume:3 Issue:1 Year: 04 April,2018 Pages:536-543
Abstract
Million tons of waste glass is being generated annually all over the world. Once the glass becomes a waste it is disposed as landfills, which is unsustainable as this does not decompose in the environment. Glass is mainly composed of silica. Use of milled(ground) waste glass in concrete as partial replacement of cement could be an important step toward development of infrastructure systems. When waste glass is milled down to micro size particles, it is expected to undergo pozzolanic reactions with cement hydrates, forming secondary calcium silicate hydrates(C-S-H). In this research chemical properties are glass were evaluated. Chemical analysis of glass and cement samples was determined using x-ray technic and found minor differences in composition between clear and coloured glasses. Flow and compressive strength tests on mortar and concrete were carried out by adding 0-25% ground glass in which water to be binder(cement+glass) ratio is kept the same for all replacement levels with increase in glass addition mortor flow was slightly increased while a minor effect on concrete workability was noted. The compressive strength test results indicated that recycled glass mortar and concrete gave better strength to control samples. A 20% replacement of cement with waste glass was found convincing considering cost and the environment.
Kewords
-
Reference
* Use of waste glass for construction products: Legislative and technical issues by(R.K.Dhir,M.D.New lands, J.E.Halliday(Eds)). * Recycling of industrial wastes in ceramic manufacturing: State of art and glass case studies.
