TY  - JOUR
AU  - Adagba, Terlumun
PY  - 2026
DA  - 2026/08/24
TI  - The Potential of Cassava Peel Ash (CPA) as a Cement Replacement Material for Sustainable Concrete Production: A Review
JO  - Recent Progress in Materials
SP  - 006
VL  - 08
IS  - 03
AB  - The growing demand for sustainable, resource-efficient construction materials has heightened interest in agricultural waste-derived supplementary cementitious materials, among which cassava peel ash (CPA) has emerged as a promising alternative. This review critically evaluates cassava peel ash (CPA) as a potential pozzolanic material for cement and concrete applications, with emphasis on its physicochemical characteristics, fresh and hardened performance, and durability behaviour. The literature indicates that CPA, a material derived from the calcination of cassava peels, possesses appreciable pozzolanic potential. It is a lightweight material; however, CPA-based concretes maintain normal weight densities. CPA generally prolongs setting times, reflecting a moderated hydration process. At low to moderate replacement levels, typically not exceeding 15% by mass of cement, CPA-based concretes demonstrate acceptable mechanical performance with notable potential for late-age strength development. Durability performance is significantly enhanced, with improved resistance to acid, sulphate, and chloride ingress, as well as reduced drying shrinkage, primarily due to the pozzolanic activity that promotes matrix densification and pore structure refinement. However, excessive cement substitution adversely affects binder reactivity and matrix integrity, with observed variations in its quality, pozzolanic activity and strength development largely attributed to differences in cassava variety, soil chemistry, combustion conditions and processing methods. Despite all these glaring potentials, major knowledge gaps regarding the long-term durability, alkali-silica reaction susceptibility, thermal performance, life-cycle assessment, industrial-scale production implementation and establishing quality-control protocols persist. Furthermore, predictive modelling and optimization approaches remain underutilized despite their potential to address the inherent variability associated with agro-waste-derived materials. When properly processed and proportioned, CPA is a viable, eco-efficient supplementary cementitious material for durable concrete and low-to-moderate strength applications in sustainable construction.
SN  - 2689-5846
UR  - https://doi.org/10.21926/rpm.2603006
DO  - 10.21926/rpm.2603006
ID  - Adagba2026
ER  -