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Open AccessArticle

Influence of Glass Silica Waste Nano Powder on the Mechanical and Microstructure Properties of Alkali-Activated Mortars

1
Faculty of Engineering, University Teknologi Malaysia, Johor Bahru 81310, Malaysia
2
Department of Building, School of Design and Environment, National University of Singapore, Singapore 117566, Singapore
*
Author to whom correspondence should be addressed.
Nanomaterials 2020, 10(2), 324; https://doi.org/10.3390/nano10020324
Received: 23 December 2019 / Revised: 31 January 2020 / Accepted: 11 February 2020 / Published: 14 February 2020
(This article belongs to the Section Synthesis, Interfaces and Nanostructures)
The recycling of millions of tons of glass bottle waste produced each year is far from optimal. In the present work, ground blast furnace slag (GBFS) was substituted in fly ash-based alkali-activated mortars (AAMs) for the purpose of preparing glass bottle waste nano-powder (BGWNP). The AAMs mixed with BGWNP were subsequently subjected to assessment in terms of their energy consumption, economic viability, and mechanical and chemical qualities. Besides affording AAMs better mechanical qualities and making them more durable, waste recycling was also observed to diminish the emissions of carbon dioxide. A more than 6% decrease in carbon dioxide emissions, an over 16% increase in compressive strength, better durability and lower water absorption were demonstrated by AAM consisting of 5% BGWNP as a GBFS substitute. By contrast, lower strength was exhibited by AAM comprising 10% BGWNP. The conclusion reached was that the AAMs produced with BGWNP attenuated the effects of global warming and thus were environmentally advantageous. This could mean that glass waste, inadequate for reuse in glass manufacturing, could be given a second life rather than being disposed of in landfills, which is significant as concrete remains the most commonplace synthetic material throughout the world. View Full-Text
Keywords: nanotechnology; waste glass; alkali-activated mortar; microstructure properties nanotechnology; waste glass; alkali-activated mortar; microstructure properties
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Samadi, M.; Shah, K.W.; Huseien, G.F.; Lim, N.H.A.S. Influence of Glass Silica Waste Nano Powder on the Mechanical and Microstructure Properties of Alkali-Activated Mortars. Nanomaterials 2020, 10, 324.

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