Influence of the saturation state of recycled sand on mortars compressive strength

Influence of the saturation state of recycled sand on mortars compressive strength

Yacoub, A.
Djerbi Tegguer, A.
Fen-chong, T.

2017-06-21

This paper investigates the water content of pre-saturated recycled concrete aggregates (RCA) that has a diameter of 1-4 mm called recycled sand (RS), in order to determine the degree of saturation of the RS. It also puts forward the effects of the saturation state of the RS on the mechanical properties. For this matter, experiments were conducted in this research as: evaporation method to determine the water content of the RS and the compressive strength of mortars. These properties are tested for different saturation states and different saturation methods of the RS and for two types of curing conditions: laboratory curing conditions (LCC) and water immersion conditions (WIC). Results show that the standard method (NF EN 1097-6) largely underestimates the water absorption coefficient of RCA and that the saturation state of the RS and curing conditions affects the compressive strength of mortar.

Recycled aggregates
saturation state
degree of saturation
compressive strength

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Conference proceedings

conference paper

(c) 2017 The Author(s)