Organisational culture of construction companies in Lagos State, Nigeria

The study investigated the cultural features of construction companies in Lagos state and determined the organisational culture profile of the construction companies in the study area, with a view to providing information that could enhance the organisational performance of Nigeria construction firms. Primary data were sourced through the administration of 196 structured questionnaires to 98 construction companies (i.e., two questionnaires per company) represented by their construction professionals and administrative staff. The information elicited from the returned 140 questionnaires (71% return rate) included features of organisational culture and dominant characteristic element of organisational culture profile of the construction companies. Data collected for this study were analysed using percentages, factor analysis and mean score (MS). The result showed a dominant organisational cultural feature of strategic direction explaining 17.73% variance in respondent’s perception. However, communication (9.66%), adaptability (8.43%) and employee involvement (6.88%) were also relevant. The organisational culture profile showed a predominant market culture (MC) with focus on production and goal accomplishment (MS = 3.62), a hierarchy culture (HC) of a coordinator, organiser and efficiency expert (MS = 3.60) and an ad hoc culture with strategic emphasis on dynamics and readiness (MS = 3.56). The family type of culture is undermined within the companies (MS = 3.47). The study concluded that strategic direction being a MC feature corroborates a predominant MC revealed by assessing organisational culture of construction companies in Lagos state, Nigeria

STUDY OF THE ELECTROCHEMICAL BEHAVIOR AND SURFACE INTERACTION OF AA6063 TYPE AL-MG-SI ALLOY BY SODIUM MOLYBDATE IN SIMULATED SEA WATER ENVIRONMENT

The potential of sodium molybdate on the corrosion of aluminium alloy AA6063 type was examined with the view to study the electrochemical and surface degradation for metal-inhibitor interface using gravimetric and electrochemical corrosion techniques in simulated s~awater environment. The microstructures of as-corroded samples were also assessed for their surface morphology.The results show thatcorrosion rate decreased with an increase in the inhibitor concentration and exposure time. Equally, the inhibition efticiency increased with inhibitor addition with maximum efficiency obtained at 5g/v sodium molybdate addition. The adsorption of the molecules of the extract on the aluminium alloy surface obeyed the Langmuir adsorption isotherm. The potentiodynamic polarization results showed that sodium molybdate acted as mixed-type i•1hibitor