1Ecole Nationale Supérieure des Ingénieurs (ENSI) de l’Université de Lomé (UL), BP 1515, Lomé, Togo
2Equipe de Recherche et Devéloppement de FORMATEC, BP 20436 Lomé, Togo
3Centre de Construction et de Logement (CCL), BP 1762, Lomé, Togo
4Laboratoire National du Bâtiments et des Travaux Publics (LNBTP), BP 20100, Lomé, Togo
American Journal of Civil Engineering and Architecture.
2018,
Vol. 6 No. 5, 172-179
DOI: 10.12691/ajcea-6-5-1
Copyright © 2018 Science and Education PublishingCite this paper: AMEY Kossi Bollanigni, SAMAH Ouro-Djobo, NEGLO Koumah, AMOUSSOU Komlan, SOUNSAH Komi Mawutodzi, TCHAMDJA Bawubadi. Experimental Study of the Formulation of Mortar Based on Silty Sand of Togo.
American Journal of Civil Engineering and Architecture. 2018; 6(5):172-179. doi: 10.12691/ajcea-6-5-1.
Correspondence to: AMEY Kossi Bollanigni, Ecole Nationale Supérieure des Ingénieurs (ENSI) de l’Université de Lomé (UL), BP 1515, Lomé, Togo. Email:
ameykoss3@yahoo.frAbstract
This study consists in experimentally determining a formula of mortar got from silty sands of Togo for the purpose of optimal mechanical properties. 1,443 4cmx4cmx16cm test tubes of mortars made from silty sands of 12 sites of extraction of Togo are prepared at variations of water and cement. The results show that for the water-cement ratio (E/C) of 0.5, the evolution of resistances in compression at 28 days of age (σ
c) increases exponentially to C/S and E/S ratios ranging between 0.311 to 0.512 and 0.156 to 0.256 (σ
c=ae
b1(C/S)=ae
b2(E/S) with 0.061<a<0.182, 11.08<b1<12.9 and 22.17<b2<25.80). They become stationary beyond these values (σ
c≈19MPa to 35,45MPa). Two formulas of rich mortars (E/C=0.5, C/S>0.512 and E/S>0.226) and lean (E/C=0.5, C/S<0.311 and E/S<0.156) silty sands taken in Togo are therefore defined.
Keywords