Application of Six Sigma DMADV Methodology Approach for Improving Concrete Masonry Mixing Process
DOI:
https://doi.org/10.63746/njtd.v22i5.3152Keywords:
Concrete Masonry, Finite Element Analysis, Process Improvement, Quality Control, Six SigmaAbstract
The poor quality of concrete masonry, which is frequently caused by irregular material composition and inefficient manufacturing processes, has been linked to building collapses in Nigeria. The Six Sigma DMADV (Define, Measure, Analyse, Design, Verify) methodology is used in this paper to improve the concrete masonry mixing procedure. The study takes on a case study design to identify the process deficiencies, which leads to the development of a mechanised mixing system to improve the masonry aggregates. Finite Element Analysis (FEA) optimises the new concrete block designs to reduce weight and maintain structural integrity and ergonomic efficiency. The results show that implementing the Six Sigma DMADV improves manufacturing quality, reduces defects, and ensures consistency in concrete masonry manufacturing. Among the 12 model samples produced by the FEA for the new concrete masonry machine design, model L is the most optimal, with volume, weight, stress, and the factor of safety measuring 364440 mm3, 8.773 kg, 5.271 MPa, and 1.01, respectively. The paper concludes that the integration of systematic quality control measures as well as automation in the production of small and medium-scale concrete can reduce construction failures, leading to safer and more durable buildings.
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