Pusat Pengajian Perumahan, Bangunan & Perancangan - Tesis

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Assessment Of Thermal Comfort In Naturally Ventilated Classrooms In The Tropical Savanna Climate Of Nigeria
(2023-09)
Mustapha, Tajudeen Dele
Issues of climate change and energy efficiency in buildings have made thermal comfort research increasingly significant. The rising temperature caused by climate change impacts building occupants' comfort level and health, especially school children exposed to unfavourable indoor thermal conditions. Therefore, this study aims to investigate students' perceptions of the indoor thermal environment and determine the optimum thermal condition in naturally ventilated classrooms in the tropical savanna climate of Abuja, Nigeria. In achieving this aim, two field investigations and building simulations were conducted to evaluate the occupants' thermal comfort and perceptions, involving 2758 respondents from 83 classrooms during the dry and wet seasons. The respondents encompass a total of 2,739 secondary school students and 19 teachers selected from four (4) secondary schools in Abuja. The selected case studies represented a range of users in an equally comparable climatic environment with Abuja. The data collected in the surveys were fieldwork measurements, simulation of thermal comfort variables, and questionnaire answers of occupants' perceptions of the indoor climate. Accordingly, the data were stored in a spreadsheet and subjected to descriptive and inferential statistical analysis using the analytical software programs SPSS version 23 and Microsoft Excel. The assessment revealed that only 27.3% of the case-studied classrooms and 21.9% of the occupants meet the ASHRAE Standard 55 thermal comfort criteria stipulated by the American Society of Heating.
Development Of Pofa Based Geopolymer Concrete Activated With Wood Ash Lye Incorporating Timber Clinker Aggregate
(2023-09)
Isa, Muhammad Nura
Cement manufacturing has led to excessive carbon dioxide (CO₂) emission into the atmosphere, which has contributed to global sustainability challenges. Moreover, huge amount of industrial waste like palm oil fuel ash (POFA), wood ash (WA), and timber clinker aggregate (TCA) landfilled in our environments coupled with the use of naturally occurring rocks for aggregate are also a negative factor for the global sustainability. Amidst these sustainability challenges of cement production, waste management, and the use of naturally occurring rocks emerges the technology of geopolymer concrete. The development of geopolymer concrete has gained recognition in recent years as innovative and alternative construction material. However, using aggressive chemicals like sodium hydroxide (NaOH) as alkaline activator and oven curing has limited it to laboratory research only. The current study strived to answer the research questions on the effectiveness of using WA lye as alkaline activator to replace NaOH and also the utilization of TCA as coarse aggregate in geopolymer concrete at the ambient temperature. The investigation began with the optimization of liquid binder (L/B) and alkali activator ratio (AAR) using varying L/B and AAR ratio. Then specimens with GGBS as a partial replacement of POFA from 0% to 40% were produced with the view to optimize the GGBS content. TCA was optimized by producing POFA: GGBS geopolymer concrete with 0% to 100% TCA at 20% increment as partial replacement of natural aggregate.
Eco-innovation Implementation Framework For Malaysian Contracting Firms
(2023-09)
Isa, Siti Sarah Mat
The construction industry is expected to excel in innovation while at the same time care for the environment, which makes the concept of eco-innovation (EI) an important direction for firms and the industry. Nonetheless, this application is still lagging compared to other industries. This research focuses on developing EI implementation framework by adapting the Dynamic Capability Theory. With 5 objectives to be achieved, a mixed method (QUAN-QUAL) comprising a questionnaire survey and semi-structured interview was employed. The data for this study was obtained from G7 contractor firms registered with the Construction Industry Development Board (CIDB). Based on the results of 103 survey responses and 14 interviews, it was discovered that there are 10 components of EI relevant to contractor firms that can be parked under process, product and organisational EI (Objective 1); the level of EI adoption remained moderate (Objective 2); the contractor firms are mainly driven by environment, technology, market, and firm-specific factors (Objective 3); there are 6 main challenges and 2 main supporting factors that influence EI implementation (Objective 4); and lastly, there are 4 key strategies (staff enrichment, technology optimisation, strengthen networking, and firm management proactiveness) to implement EI (Objective 5). The qualitative study validates the crucial connection of EI components and the influencing factors of EI implementation with EI strategy, enabling the development of the EI implementation framework. This framework facilitates the contracting firms to be more attentive in EI endeavour by providing a clear and comprehensive understanding of EI implementation to ensure continuous commitment to sustainable competitive advantages and environmental sustainability
Factors Affecting Non-compliance With Planning Standards In The Residential Area Of Benghazi City, Libya
(2023-09)
Abrabba, Saaed Awad
Planning standards refer to codes or regulations for space requirement, site specification, height and other criteria as required by the local authorities for purposes land and property development. Issues of non-compliance with planning standards have been reported in many developing countries with increased population growth and urbanization. To address the research gap between residents’ housing needs and existing planning standards, this research examines those factors that could affect the level of compliance with planning standards, specifically in the residential area of Benghazi City, Libya. This research develops a conceptual framework based on bibliometric and systematic literature approaches to identify five major factors that affect compliance with planning standards; they are administrative, legislation, social, economy and demography. This study employed a mixed-method design for data collection including a questionnaire survey among 359 heads of households and semi-structured interviews with four officials and planning authorities of Benghazi City, Libya Study results obtained using Warp PLS .6 software indicate lower level of compliance in Benghazi due to economic factors, such as shortage of housing schemes and housing loans; factors of inappropriate standards of plot size to accommodate large household size; administrative factors of inefficient monitoring and enforcement of the planning standards; and social factors of lack of awareness on the importance of planning standards. Planning authorities in Benghazi City should re-examine current residential standards to allow better understanding and make these standards more appropriate to match the residents’ socio-economic conditions.
Motivasi Penglibatan Rekreasi Luar Dalam Kalangan Masyarakat Luar Bandar Dan Bandar Di Ipoh, Perak
(2023-09)
Dulhamid, Hasnizam Ab
Outdoor recreational activities are considered as a significant part of human daily life because of the beneficial outcomes it brings for a healthy lifestyle among communities. The popularity of recreational activities must be maintained as it is seen as an important factor that can influence the future of professional industrial sectors and economic development. Although ample studies have shown the profound benefits of recreational activities, the Malaysian community is still faced with many challenges in order to actively engage oneself in these activities. Literature shows that studies on motivation and barriers of outdoor recreational activities have been conducted in the past, however they do not focus on understanding the subject matter among rural and urban communities. Some of the factors that have been highlighted in which leads to the decreasing involvement of outdoor recreation activities during a person’s free time are the influence of technological advancement, preferring a sedentary lifestyle, the threat of infectious disease and outbreaks, and the availability of open spaces and limited recreation. This quantitative research study therefore, aimed at identifying the motivational factors for outdoor recreation involvement as well as the constraints that hinder individual involvement by including a number of 384 residents in Ipoh, Perak from two different categories of these areas through a questionnaire which was developed and distributed among sports and recreation clubs in Ipoh.
Ruang Ketiga Pada Gerbang Rumah Peranakan, Pecinan, Lasem, Jawa Tengah, Indonesia Kajian Kes: Rumah Peranakan Kidang Mas
(2021-06)
Darmayanti, Tessa Eka
The gateways to the Peranakan house in Lasem Chinatown are seen as an icon. However, maintaining the existence of these gates is a serious challenge due to the government's lack of attention and public understanding on historical and cultural values. Its manifestation is even more awful due to phenomena happened to the Peranakan house in Chinatown, Lasem, namely being abandoned, demolished, exploited, and overly decorated. This investigation aims to explore about the various "traits" in-depth through various activities at the Peranakan house gateway in the third room so that the philosophy is not lost and the identity is preserved. Space trialectic theory of Lefebvre-Soja provides a different perspective on the existence of the third room at the gate of the Peranakan house following the study on the Kidang Mas Peranakan house (RPKM). It is interpreted through the experiences of the residents and investigators based on the social and cultural aspects prevailing in the Lasem and Chinatown areas. The analysis was carried out using an ethnographic approach, made hand paintings reinforced by the concept of seven human senses following the phenomenological approach by Pallasmaa. Everything is described in detail using narrative methods related to the local social and cultural conditions. This study has finally made three investigative contributions. First is the methodological aspect, namely the merging of the Lefebvre-Soja space trialectic theory with the phenomenology-Pallasmaa principle by embracing hand painting and the concept of the seven human senses which reinforced the narrative thread.
The Mediating Roles Of Ethical Practices In The Relationship Quality And Cost Performance Of Multifarious Infrastructure Projects In Northern Region Of Nigeria
(2022-06)
Shuaib, Muhammad Rabiu
The construction industry has been associated with deteriorated and adversarial working relationship among supply chain partners. This has been reported to affect the industry performance in terms of cost. In other word, projects attained significant cost performance through working relationships of the supply chain (SC) partners in construction. This study aimed at developing a model for the mediation role of ethical practice on a relationship between relationships quality (RQ) and cost performance of Multifarious Infrastructure Projects (MIPs) in Nigeria. Four main attributes of RQ were identified from extent literature as trust, commitment, teamwork and performance satisfaction (PS). The study introduced ethical practice as a mediating construct with two-dimensional measure as pre-contract ethical practice (PreCEP) and post-contract ethical practice (PoCEP) to mediate the relationship between RQ as the independent variable (IV) and cost performance (CP) as the dependent variable (DV). Using purposive non-probability sampling technique, 289 valid quantitative sample data were collected. The study focused on key informants such as directors and managers within several organizations involved on multifarious infrastructure projects (MIPs) in Nigeria.

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