This study considers the quality of concrete produced in warm and hot zones of south east, Nigeria. The quality of concrete mixture is of inevitable concern to all stakeholders in the construction industry in the zones when the climatic conditions of the zones are considered. Absence of National standards, environmental and climatic conditions and other factors are the main factors that affect the quality of concrete produced in the area. The affected mix ratio is examined and all the prevailing construction/production practices are considered. All necessary measures for improving the quality of concrete produced are surveyed considering the relationships between various variables used in the mixture. Three major factors (variables) that are found to be influencing the quality of concrete in the south east, Nigeria. The absence or lack of implementing the existing building code, climatic conditions in the zones and types of construction materials available, all remain the major variable influencing the quality of present concrete production in the zones of south east, Nigeria.
The study aimed to construct a device that will be helpful for every automotive mechanic in terms of bleeding automobiles brakes and clutch system. The Hydraulic Brake and Clutch Bleeder was fabricated from locally available materials making it more cost effective. The device is operated by one person that simplifies the task of bleeding the system, and with less chance for the wear and tear of parts that may occur during the process. The device is users friendly with fewer operation procedures.
The Hydraulic Brake and Clutch Bleeder was evaluated by the experts and automotive technician from the various automotive shop and also persons who have knowledge about automobile. It was evaluated based on three (3) criteria such as functionality, efficiency and effectiveness, and safety. The Hydraulic Brake and Clutch Bleeder was rated by 30 respondents from the academe and industry. It gained an overall rating 4.55 which means that the device is highly acceptable.