Author(s)

Kossi Bolanigni Amey^1,2

¹Ecole Nationale Supérieure des Ingénieurs (ENSI) de l’Université de Lomé (UL), Lomé, Togo.
²Structure de Recherche et Devéloppement (ERDF) de l’Institut FORMATEC, Lomé, Togo.

The purpose of this study is to analyze the behavior of mortars from the sands of Togo in order to optimize their traction resistance. 3660 4 cm × 4 cm × 16 cm test tubes of mortars are prepared from the sands of 20 extraction sites in Togo with variations in water and cement while keeping the water-cement ratio constant (E/C = 0.5). It emerges a quadratically increasing evolution of resistance in flexural at 28 days of age (σ_f) for cement-sand (C/S) and water-sand (E/S) ratios varying respectively by the interval [0.0370, 0.3580] to [0.1977, 0.5120] and [0.0185, 0.1792] to [0.0988, 0.2605]. The resistances become stationary beyond these values (σ_f ≈ 3.4750 MPa to 7.9010 MPa). For structures whose resistance in traction is desired, three formulas of sand mortars from Togo are therefore defined: rich mortars (C/S > 0.5120 and E/S > 0.2605), lean (C/S < 0.0370 and E/S < 0.0185) and normal (0.0370 < C/S < 0.5120 and 0.0185 < E/S < 0.2605).

Sand, Togo, Mortar, Resistance, Flexural

Amey, K. (2021) Optimization of the Traction Resistance of Hydraulic Mortars Based on Togo Sands. Open Journal of Applied Sciences, 11, 807-817. doi: 10.4236/ojapps.2021.117059.