The spread of the COVID-19 pandemic has impacted the economy of the world as well as the construction industry in Malaysia. Many projects were plagued with time and cost overruns due to the COVID-19 pandemic. Site work progress came to an abrupt halt, and productivity stagnated. With that in mind, this study was conducted on the basis of first-hand experience in dealing with the COVID-19 pandemic and how it has affected the construction industry. This study investigated the effects of the COVID-19 pandemic on construction projects in Sarawak, Malaysia. The target respondents were the clients, consultants, and contractors involved in projects under the purview of the Public Works Department Sarawak. The purpose of the research was to obtain a better understanding of the current situation, in readiness for a similar situation in future. To achieve the objectives of the research, a questionnaire survey of current ongoing projects was used for this study’s data collection purpose. To analyse the data, SPSS version 26 and the Analytical Hierarchy Process (AHP) method were used to achieve frequency analysis and to determine the priority importance of the effects of this pandemic on those construction projects. The findings of this study provide necessary information to construction stakeholders in Sarawak on how to deal with such pandemics in the future and to create awareness, foster resiliency, connote preventive measures, avert delays, and manage progress control.
Solid waste management in Malaysia was still in a backward stage. Population growth, urbanization and rapid industrialization led to an increase in the solid waste generated by society. Solid waste management is one of the main problems faced by the community, especially in the city. Solid waste management costs of the collection, collecting, transporting waste to the landfill, is very high. The quantity of solid waste should be reduced in order to reduce government spending. Moreover, improper solid waste management caused a negative impact on people and the environment. Method of recycling is one of the best alternatives to reduce the number of solid waste. Therefore, this study was to identify methods of recycling used tires to be used in civil engineering. This study was conducted to determine the effectiveness and properties of rubber from used tires to be add in the road kerb design.
The global warming incremental impacts such as temperature, precipitation, rise in sea level, and extreme weather events are indeed being observed globally. In recent decades, energy demand and greenhouse gas emissions have increased due to buildings being designed with active cooling and heating solutions, despite global attempts to reduce energy consumption. About 50 percent of all energy use is attributed to buildings. There has been a debate for Decades on building active and passive design, but very limited studies have been carried out to confirm the Overall Thermal Transfer Value (OTTV) during the operation phase of the building. This paper highlights the analysis of OTTV in the Passive Design Strategies using several conditions of glazing facades. The passive design of glazing facade strategies includes the variation in opaque wall Colour with different values of the coefficient of solar absorption, change in glazing type (U-Value and Shading Coefficient), and the decrease in the size of the openings. Building parameters were collected and OTTV was determined using the equation in Malaysian Standard MS 1525 for Energy Efficiency. The OTTV was then compared to the recommended value for Malaysia’s tropical climate. Results showed that different paint Colours improved OTTV by up to 23.05%, changing glazing type reduced OTTV from 76.93 W/m² (Base case) to 64.12 W/m² (Double Low-E, e2=.1 Tint green), and reducing glass area by 10% lowered OTTV to 62.24 W/m².Whereas, by combining the Type of Glazing and White facade Colour the OTTV was reduced to 39.68%. It is concluded that this OTTV analysis enhances building energy efficiency and reduces cooling loads.
1 December 2024 in Civil and Environmental Engineering Reports
This study critically addresses the ongoing safety challenges within the construction industry which is known as a sector persistently affected by preventable accidents. The research underscores the importance of rigorous safety performance measurement as a key driver for the continuous improvement of Construction Safety Management (CSM). Utilizing a novel science mapping approach, this comprehensive review examines various research in safety performance measurement, delineating the evolution of Construction Safety Performance (CSP) studies. This paper emphasizes bibliometric analysis conducted for a paradigm shift in safety practices and management strategies. The analysis identifies significant contributors, explores research characteristics, and charts the future trajectory of CSP research. The study aims to bridge a critical knowledge gap in CSP literature, providing a holistic perspective anticipated to enhance safety practices across the construction industry. The findings highlight the crucial role of robust safety performance measurement methods in tracking and improving safety outcomes, evaluating policy impacts, and facilitating continuous improvement.