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ABSTRACT
The aim of this research was to identify and rank, according to statistical analysis, factors affecting labour productivity for blockwork on construction sites in UNIBEN. Structured questionnaires comprising twenty-five pre-selected factors were used for data collection. Using a five-point likert scale, consultants and building contractors expressed their views on the relative importance of pre-selected factors on factors affecting labour productivity for blockwork on construction sites. The data was analyzed using SPSS, mean item score and the relative importance index. The findings showed the mean of the various outputs of masons on the sites visited in the University of Benin. The study revealed that the output of site workers vary with different site conditions and varying stage of worksite D with a mean score of 1.80 was the highest performing site at the ground floor below the sill level. The least performing site with a mean score of 1.23 was the Site C and this can be attributed to the level of work being the most elevated from a natural working platform. The results also showed that lack of required materials, shortage of experienced labour, site manager’s leadership style, coordination level among design discipline as well as weather and season changes are the top five most important factors affecting labour productivity for blockwork on construction sites in UNIBEN. Adequate work planning, efficient resource procurement systems, timely payment of salaries and continuous professional development for workers are among the recommended intervention strategies to improve on-site labour productivity for blockwork on construction sites.
