Journal of Materials and Engineering Structures
Volume 13, Numéro 2, Pages 273-284
2026-06-30
Valorization Of Marble Powder As A Partial Sand Substitute In The Formulation Of A Self-compacting Mortar
Authors : Meziane Lylia . Ziregue Ahmed . Ghernouti Youcef .
Abstract
This study investigates the use of marble powder (MP), a local industrial by-product, as a partial sand substitute (7–25%) in self-compacting mortar (SCM) formulations incorporating crushed calcareous sand (fineness modulus = 3.0). Fresh-state tests (mini-cone flow, V-funnel) show that MP incorporation increases flow diameter while raising flow time, reflecting modified rheological behavior. Mechanically, compressive strength improves progressively with substitution rate, while flexural strength remains comparable to the reference mix, with optimal performance at 22%. Durability indicators — immersion absorption and capillary sorptivity — both decrease at moderate substitution levels (7–12%), indicating microstructural densification. Beyond 22%, a decline in durability performance is observed. These results confirm that MP can effectively correct the granulometric deficiency of coarse calcareous sand while enhancing SCM properties within a circular economy framework.
Keywords
Self-compacting mortar ; Valorization ; Industrial by-products ; Calcareous and marble waste
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