STUDY OF THE DURABILITY OF MORTAR FOR STRUCTURAL CONCRETE MADE WITH FINE POWDER OF WHITE GLASS

Author(s): Sales, F. A., Sales, R. B. C., Corrêa, E. C. S., Molhallem, N. D. S. and Aguilar, M. T. P.
Paper category: Conference
Book title: XIII International Conference on Durability of Building Materials and Components - XIII DBMC
Editor(s): Marco Quattrone, Vanderley M. John
Print ISBN: none
e-ISBN: 978-2-35158-149-0
Publication year: 2015
Pages: 974-982
Total Pages: 9
Language: English

Abstract: Waste content reactive silica is often used as a supplementary cementicious material. It is common to use granulated slag from blast furnaces, silica fume, and fly ash in partial replacement of Portland cement materials. Another alternative material with reactive silica is glass waste. This substance is commonly used as a raw material in the manufacture of new glass, but can also be used as an aggregate for Portland cement concrete or asphalt concrete, or as a raw material for products made of clay. However, the fine powder waste with a particle size below 100 μm requires careful handling and is usually disposed of in landfills. Different studies indicate that these powders could partially replace cement in the manufacture of concretes. These studies are not conclusive, though.

This study is aimed at evaluating the durability of mortars made with fine powder (less than 30 m) of colorless glass, and water-cement ratio of 0.5. Results indicate that the use of colorless glass residue to replace cement in 10 and 20% decreases the permeability of the cementitious compound to oxygen, whereas increases the thickness of carbonated layer, inhibits the alkalisilica reaction, and promotes the decrease of wear resistance.

Online publication: 2015
Publication Type: full_text
Public price (Euros): 0.00