MECHANICAL PROPERTIES OF MORTARS MADE FROM GLASS POWDER AS A PARTIAL REPLACEMENT FOR SAND

Gnilane THIAM; Ndeye Awa SENE; Pascale BALLAND; Dame KEINDE

doi:10.67809/ijetrm.1791556130

Abstract

The various industrial activities of humans constantly generate large amounts of waste such as plastic, glass, wood,
tires, and various types of waste, most of which inevitably end up in unsuitable landfills. Since the beginning of
the 21st century, many industrial waste products and by-products have been recycled. This study is part of this
recycling effort, aiming to repurpose waste in the development of construction materials as an alternative solution
to the depletion of natural resources (sand) and to protect the environment. To do this, an experimental campaign
was conducted to evaluate the effect on the mechanical properties (maximum stress and Young's modulus) of
mortars to which finely ground glass powder from bottles was added. The sand was replaced with glass powder
in proportions of 0, 5, 10, 15, 20, and 25 %. A water/cement ratio of 0.5 was used to make the mortars subjected
to compression tests. The results were compared with those of the reference mortar. The maximum stress was
obtained for a dosage of 25% glass powder at 28 days. Replacing sand with glass powder improves the
performance of the produced mortars, thus opening an interesting avenue for recycling glass bottles into
construction materials.

Keywords

Glass powder1, Recycling2, Mortar3, Substitution4 and Young's modulus5

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