TITLE:
Interaction of the Mining Environment on the Properties of Hydraulic Mortars in Silty Sands in Togo
AUTHORS:
Kossi Bollanigni Amey
KEYWORDS:
Mortar, Silty Sand, Pollutants, Physical and Mechanical Properties
JOURNAL NAME:
Open Journal of Civil Engineering,
Vol.12 No.1,
January
11,
2022
ABSTRACT: The objective of this study is to determine the
influence of the surrounding soils on the granular properties of the silty
sands of Togo and on the resistance of the mortars. Sand compositions are made
by substituting silty sands with clay soil, vegetal soil, lateritic soil or
fine elements (ES = 0, VBM > 0.53 and IP > 19) from 10% to 35% cause drops in resistance
of mortars from 7% to 96%; this loss is 8% to 70% for the rates of
addition of less clayey soil (ES =
33, VBM = 0.40 and IP = 0) at rates of 10% to 100%. As for
fine powdery soils (ES = 56.53 and VBM = 0.25), they have virtually no
influence on resistance (loss of less than 3% for rates of 100%). Construction
stakeholders thus have a decision-making tool for the choice of silty sand
extraction zones according to the surrounding land and the quality of the
desired concrete.