Abd. Wahid Wahab

A framework for implementing lean practices in the Nigerian construction industry: an integrated diffusion-adoption approach

Purpose This study challenges the persistent lack of awareness and action on Lean Practices (LPs) in the Nigerian construction industry by developing an integrated Diffusion of Innovations (DOI)–Technology–Organisation–Environment (TOE) model. Rather than treating adoption as a f...

A systematic review of agricultural ash supplementary cementitious materials as low-carbon alternatives to ordinary Portland cement from 2005 to 2025

The cement industry contributes almost 8% of global CO₂ emissions, creating an urgent need to develop scalable low-carbon substitutes for ordinary Portland cement (OPC). Supplementary cementitious materials (SCMs) based on agricultural ashes have emerged as potential candidates,...