COMPARATIVE ANALYSIS OF THE MAINTENANCE PRACTICE ON PROCESS PLANTS IN CEMENT, PAPERAND BREWERY INDUSTRIES IN LAGOS AND OGUN STATES INDUSTRIAL AXES OF NIGERIA

The aim of this study is to present a comparative analysis of the maintenance practice in process plants in cement, paper and brewery industries from the perception of practising estate surveyors and valuers in Lagos and Ogun States industrial axes of Nigeria because of their currency in economic activities and significant contributions towards the notable success of the manufacturing industry in this country. The objectives to achieve this shall be as underlisted to: identify the factors affecting the useful life of process plants in brewery, cement and paper industries; obtain and rank the views of practising estate surveyors and valuers on the factors affecting the useful life of process plants in these three industries in Lagos and Ogun States; obtain and rank the views of these practitioners on the periods for implementing maintenance schedules in these industries; obtain and rank the views of practising estate surveyors and valuers on the periods for retaining maintenance Engineers in the industries under analysis, establish which of the brewery, cement and paper industries mostly keep maintenance history of their plants and present a statement of the findings to practising estate surveyors and valuers in Lagos and Ogun States Nigeria. Questionnaire was the main instrument for soliciting data supported by scanty literature that were very difficult to find. A census of 337 practising estate surveying firms in the two states were administered with questionnaires and 172 returned representing 51% success rate which was considered fairly okay for this purpose. Statistical package for Social Sciences (SPSS) 20 was used to analyse these responses. It was found out that; frequency of usage of plant was ranked most significant (first) in cement and paper industries and was ranked second in brewery with Mean Item Score (MIS) of 4.38, 3.92 and 4.07 respectively. It was also found out that monthly maintenance schedule was mostly adopted in similar industries. The authors recommend among others that monthly maintenance of plants should be practised in these three industries since it was mostly suited for them from the perspective of practising estate surveyors and valuers.