TY  - JOUR
AB  - Purpose This paper aims to investigate the 28-day compressive strength of concrete produced with aggregates from different sources.Design/methodology/approach Coarse aggregates were crushed granite and natural local stones mined from Umunneochi, Lokpa and Uturu, Isuakwato, respectively, in Abia State, Nigeria. Fine aggregate (river sand) and another coarse aggregate (river stone) were dredged from Otammiri River in Owerri, Imo State, Nigeria. The nominal mix ratios were 1:1:2, 1:2:4 and 1:3:6, whereas the respective water–cement ratios were 0.45, 0.5, 0.55 and 0.6.Findings The compressive strength of granite concrete, river stone concrete and local stone concrete ranged 17.79-38.13, 15.37-34.57 and 14.17-31.96 N/mm2, respectively. Compressive strength was found to increase with decreasing water–cement ratio and increasing cement content.Practical implications Granite concrete should be used in reinforced-concrete construction, especially when a cube compressive strength of 30 N/mm2 or higher is required.Originality/value Granite concrete exceeded the target compressive strength for all the concrete specimens, whereas river stone concrete and local stone concrete failed to achieve the target strength for some mix proportions and water–cement ratios.
VL  - 18
IS  - 5
SN  - 1726-0531
DO  - 10.1108/JEDT-08-2019-0220
UR  - https://doi.org/10.1108/JEDT-08-2019-0220
AU  - Eziefula Uchechi G.
AU  - Opara Hyginus E.
AU  - Eziefula Bennett I.
PY  - 2020
Y1  - 2020/01/01
TI  - Strength of concrete produced with different sources of aggregates from selected parts of Abia and Imo States of Nigeria
T2  - Journal of Engineering, Design and Technology
PB  - Emerald Publishing Limited
SP  - 1053
EP  - 1061
Y2  - 2024/04/19
ER  -