ISSN 2319-5347, ISI Impact Factor: 0.763

VOLUME 04  NO. 03 JULY 2015:

Title:         Utilization of waste glass powder as a partial replacement of cement in concrete
Authors: Fasih Ahmed Khan, Muhammad Fahad, Khan Shahzada, Haris Alam, Naveed Ali
Abstract:   Concrete is the most commonly used material in the world, which is a mixture of Portland cement,aggregates (including fine and coarse aggregate), water and with or without admixtures. Many researches are carried out these days on the replacement of Portland cement with waste materials having pozzolanic effect like Fly ash, Bagasse ash, Silica fume and marble powder etc. Waste Glass Powder can also be used as a binder with the partial replacement of cement, it also acts as a filler material. Waste glass when ground to a very fine powder shows pozzolanic properties as it contains high SiO2 and therefore to some extent can replace cement in concrete and contribute strength development. In this study Glass Powder partially replaced at varying percentage 0 to 40 percent by weight of cement, and tested for its workability and Compressive strength up to 84 days of age and were compared with those of conventional concrete. The overall test results shows that Waste Glass Powder could be utilized in concrete as a good substitute of cement. The research concluded that with the age of testing affects the compressive strength. The reduction of workability was observed with the increase of glass powder content, as the slump value decreased with a constant amount. The initial Strength was less as compared to the conventional concrete, but after 28 days the pozzolanic activity started and the difference of strength between conventional concrete and glass powder concrete reduced to 12 percent. At 15 percent replacement of cement by Glass powder, the concrete gives maximum strength which is about 88.22 percent of the control mix. Thus 15 percent GP content is recommended as optimum replacement content for strength.le.
Keywords:zzolana, Glass Powder, Concrete, Cement Replacement

pages              181-185

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