Factors contributing to the failure of emerging construction companies
- Authors: Novela, Maqhawe Bennito
- Date: 2017
- Subjects: Construction industry , Business failures
- Language: English
- Type: Masters (Thesis)
- Identifier: http://hdl.handle.net/10210/286085 , uj:30950
- Description: Abstract: The construction industry in South Africa plays a major role in the country’s GDP. It plays a significant role in the ability to boost growth for the country and create temporary and long term employment for many individuals. With the high number of emerging construction companies failing to succeed within the first 3 years after being established, there is an increasing risk of having a high unemployment rate in the country. The study focuses on factors which contribute to emerging construction companies failing to succeed and how successful companies are able to overcome failure in the same industry. Through literature 8 factors were identified as being the factors which contribute to failure for emerging construction companies. Questionnaires distributed via an online survey where used to collect data from individuals who own companies with Construction Industry Development Board(CIDB) grade 1 - 4 or individuals who are in management positions in companies with grade 5 - 9. From the results it was found that poor managing of company finances by leadership is the biggest reason emerging construction companies fail to sustain. It was found that established companies manage the 8 factors identified from literature better compared to emerging companies and thereby are able to overcome failure. The study has contributed to the limited knowledge available to the construction industry about why emerging construction companies fail to succeed by identifying the causes and what to do to avoid failure. , M.Phil. (Engineering Management)
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The effectiveness of efficiently managing the process lifecycle of medium and low voltage equipment in building services
- Authors: Makhateng, Morena Don
- Date: 2019
- Subjects: Construction industry , Electric power distribution , Electric power systems
- Language: English
- Type: Masters (Thesis)
- Identifier: http://hdl.handle.net/10210/437439 , uj:37982
- Description: Abstract: The rotating cylinder electrode (RCE) is one rig constructed and designed to study the behaviour of the material under the effect of flow. The behaviour of hot and cold rolled UNS S32205 duplex stainless steel (DSS) in erosion-corrosion (EC) conditions were studied to monitor the material loss and surface degradation. The impact is highlighted and explained with the aim to offer better understanding regarding degradation phenomena. Mine water solution containing silica sand particles (SiO2) was the environment of interest for this study. Both gravimetric and electrochemical methods (potentiodynamic polarisation (PP) and open circuit potential (OCP)) were adopted for the erosion-corrosion behaviour of the alloys. The cold rolled material displayed better resistance to erosion-corrosion at all speed tested in comparison with hot rolled material. The surface morphology for both materials revealed erosion dominating the erosion-corrosion process with minimal evidence of pitting. The hardness of cold rolled sample showed higher hardness as compared to hot rolled due to the impingement by sand particle hence better resistance to erosion-corrosion. The wear corrosion mechanism displayed grooving on the material surface especially at a higher speed. The effect of particles in wear mechanism play an important role. The electrochemical results showed increasing corrosion rate as the rotating speed of the electrode increased. The higher pH of mine water solution resulted in the passivation of the sample. The analysis trend was not surprising as the vulnerability of the surface layer increased with increasing velocity under the subjected conditions. Aggressive conditions and sand concentration are good enough to prove relation between wear rate and corrosion rate. The environmental impact was not aggressive enough to create much interferences hence the surface deterioration was not severe in all analysis. , M.Ing. (Engineering Management)
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