This work is part of an experimental contribution approach to the study
of the incorporation of glass sand from the grinding of recycled glass waste in
cement mortars and its influence on the physical and mechanical behavior of
semi-rich mortars without adjuvants. For this purpose, after a physical
characterization of the sands, eight (08) formulations of mortars based on
cement CEM II B/L 32.5R and fine sands (0/2) of glass at mass contents of 0%,
10%, 20%, 30%, 40%, 50%, 75% and 100% of the silty sand (0/2) were made
respectively to three (03) types of fine glass sand (white, brown, green) with
water dosages on cement (W/C) of 0.50, 0.45, 0.40. The results obtained show
that the fine sands of recycled glass have a higher water absorption than the
silty sand and the physical properties of the mortars prepared are affected by
the increase in the glass content. The mechanical performances are obtained for
the ratio W/C=0.50 and the formulation
of glass mortars for an optimal compressive strength superior to glass-free
mortar requires a substitution of 10% for fine white glass sand, 20% for sand
fine green glass and 75% for fine brown glass sand. The comparative study
between these different compositions of fine glass sand mortars shows that the
mechanical performances of fine brown glass sand are better than other glass sands but generally remain
inferior to the control mortar based on natural silty sand.
References
[1]
Chanvillard, G. (2002) The Concrete Material: General Knowledge. ALEAS Editors.
[2]
Standard NF EN 12620 (2002) Aggregates for Concrete.
[3]
Koledzi, K.E., Agbebavi, J., Baba, G., Koffi, D. and Matejka, G. (2014) Waste Management in Developing Cities: Transfer, Adaptation of Scheme and Sources of Funding. Science and Technology Waste Review, 68, 31-39.
[4]
Rashida, I. (2009) Mechanisms of Action of Glass Fines and Aggregates on the Alkali-Silica Reaction and the Pozzolanic Reaction. Doctoral Thesis, University of Toulouse, Toulouse.
[5]
Ayite, Y.M.X.D., Hounsi, D.A., Pachoukova, I. and Bedja, K. (2017) Valorization of Glass from Waste in Togo: Study of the Formulation of a Glass-Sand Mortar. Research Journal of Engineering Sciences, 6, 1-6.
[6]
Apedjinou, D.K., Samah, O.D., Amey, K.B. and Gbafa, K.S. (2022) Identification of Glass Powders and Sands from the Crushing of Glass Waste from the City of Lomé in Togo. Open Journal of Civil Engineering, 12, 451-462. https://doi.org/10.4236/ojce.2022.123025
[7]
Amey, K.B., Neglo, K., Tamba, S., Johnson, A.K.C., Kouto, Y.E. and Nayo, E. (2014) Physical Characterization of Silty Sands in Togo. Africa Science, 10, 53-69.
[8]
Standard NF EN 196-1 (2016) Cement Test Methods—Part 1: Determination of Strengths, P15-471-1.
[9]
Tan, K.H. and Du, H.J. (2013) Use of Waste Glass as sand in Mortar: Part I—Fresh, Mechanical and Durability Properties. Cement and Concrete Composites, 35, 109-117. https://doi.org/10.1016/j.cemconcomp.2012.08.028
[10]
Zeghichi, L. and Mezghiche, B. (2006) The Effect of Replacement of Natural Aggregates by Slage Products on the Strength of Concrete. Word Journal of Engineering, 3, 42-48.