Th e difference between a pizza and a professor of philosophy is that a pizza can feed a family of four.Sometimes, my thoughts dawdle off to absurd musings - like who ever thought of balancing ice cream on the top of a hollow semi-solid edible thing that tapers from a circular shape to a pointed base, and calling it ice cream and cone? Th at person's name should be on a hall of fame somewhere. On this particular occasion, while I was lethargically feeding my 15- month old son his breakfast, my thoughts meandered from ice cream to the toast in my hand. What wanderer thought - out of the myriad combinations of cheeses, pickles, gravies and sauces (sweet and savoury) - that a gooey combination of layers of butter, peanut butter and honey on toast would bring divinity to the tongue? This person should be commemorated, too.
Th e efficient management of construction materials is essential for the successful rehabilitation of road infrastructure. This certainly applies to a contract in the Western Cape where Roadmac Surfacing Cape has been active since May 2015. Part of the Raubex Group, the contractor has been tasked with the rehabilitation of Main Road 231 and Main Road 230 in the Moorreesburg area for the Western Cape Department of Transport and Public Works. These roads support the vibrant agricultural industry in the Swartland region, and the high volume of heavy trucks using this road network during the harvesting season necessitated extensive rehabilitation.
With South African contractors and consultants moving to expand aggressively into Africa, Arthur Taute grabbed the attention of 2016 Civilution Congress attendees when he discussed the challenges associated with undertaking work in Africa, and offered some very practical advice. This article is an edited version of his presentation.
Th e City of Cape Town faces a looming space crisis due to an increasing waste stream generated by a growing population and the imminent closure of the Bellville South Waste Disposal Facility (2018). The City's Integrated Waste Management Plan confirmed the need for a regional waste disposal site with satellite transfer stations in the waste generating areas. Th e City therefore embarked on the development of the Bellville Waste Management Facility (BWMF). In July 2008 the City of Cape Town's Solid Waste Management Department, through a competitive bidding process, appointed Mott MacDonald (then PDNA) as lead consultant for the design and construction management of the BWMF. The consultant team included architects, quantity surveyors, specialist consulting engineers (mechanical, dust and odour control, ventilation and fire engineering design), as well as environmental practitioners.
Stefanutti Stocks Mining Services began engaging with Universal Coal in 2011 to establish the feasibility of mining their coal reserves at the Kangala Mine Project, about five kilometres outside Delmas. The initial engagement resulted in the negotiation of a full turnkey model to suit the client's fit-for-purpose requirements. In 2013, once Universal Coal had secured all the necessary approvals, permits and a coal sales agreement with Eskom, two contracts were entered into with Stefanutti Stocks. The first contract covered the optimisation, detail design and construction of the mine infrastructure, discard facility and water management facilities, while the second encompassed the operational element of contract mining and materials handling.
The availability and ease of access to coal as a source of power in developing countries has driven the construction of many coal-fired power stations which utilise this mineral resource as their main combustion source. The impact of the associated emissions on the climate has become an increasing global concern, and various technologies for the removal or reduction of sulphur dioxide (SO2) from these emissions are being implemented worldwide. One such technology that is currently in use in the USA and the United Kingdom is flue gas desulphurisation (FGD). FGD removes SO2 from the flue gas before it is released into the atmosphere, thus reducing the environmental impact. The basic principle of the FGD process involves taking the gas from the boiler furnaces, altering it with a solution consisting of a mixture of chemicals (mainly treated limestone), and then separating most of the SO2 from the furnace gases, thereby releasing cleaner emissions into the atmosphere. Gypsum is created as a byproduct of this process.
The renewable energy market in South Africa is developing at an encouraging rate. According to the 2014 Climate-scope Report, South Africa has the third most attractive renewable energy market in the developing world, after China and Brazil. Through the Renewable Energy Independent Power Producer Procurement Programme (REIPPP), South Africa has secured a position amongst the top ten countries in the world with significant investments in renewable energy technologies, and in the last five years has attracted more than R53 billion in foreign investments and over $11 billion in clean-energy investments since 2012.
Th e potential to produce electricity from wind turbines in South Africa is significantly greater and much more widely spread than initially thought, a study by the Council for Scientific and Industrial Research (CSIR) shows. The joint research conducted by the CSIR, in collaboration with the South African Energy Development Institute (SANEDI), Eskom and the Fraunhofer Institute for Wind Energy and Energy Systems (IWES) in Kassel, Germany, reveals that South Africa has an abundance of both wind and solar resources.
Angola's electricity supply deficit has led its government to assess the prospects for developing renewable power sources in the form of hydro-electric schemes along about 200 km of the Kwanza River. The projects are expected to more than double Angola's power generation capacity within the next four to five years, boosting development efforts and relieving an electricity-starved economy. While hydropower is a popular renewable resource globally, it is not without its environmental and social impacts; not least among these are the consequences of inundation to create the dams that feed hydro-electric turbines. SRK Consulting has been contracted by lenders to conduct the environmental and social due diligence for three of the dams being planned, to ensure compliance with Good International Industry Practice (GIIP).
The Bicycling Empowerment Network (BEN) recently received the Gold Award in the Transport Category at the 2016 Eco-Logic Awards. These prestigious awards are held annually to recognise and honour environmental excellence, and the Transport Category is awarded by SANRAL to celebrated products, organisations, individuals or services that reduce environmental impact in transport.
Globally the construction industry is one of the main contributors to the depletion of natural resources and a major cause of unwanted side effects such as air and water pollution, solid waste, deforestation, health hazards, global warming and other negative consequences. In the area of sustainability there is an urgent need to apply technologies and methods which deliver more sustainable performance in a way that is cost-effective. Sustainable, adaptive and mitigating approaches to climate change in the design of infrastructure are therefore important steering elements (FIDIC 2009).
The roof structure is one of the most important construction elements of any residential building as it protects the occupier's property and inhabitants from the elements. It is also one of the largest, heaviest and most costly structural components in any home design. Therefore it is logical to expect that much planning, design and know-how would be invested in the project in order to create an aesthetically pleasing, sound structure that can safely carry the induced loading, while offering acceptable longevity and an attractive appearance for the lifespan of the building. Although this sounds logical, sadly many building owners choose price over quality with regard to both workmanship and materials, which can lead to costly, disastrous and sometimes even life-threatening situations.
Energy awareness made child's play
Quantity surveyors now help drive energy efficient construction
The use of plastic pipes in gas pipelines
Top-of-the-range wastewater filtration systems for mining
Environmental insurance - ensuring our future
Your order constitutes a specification, and the specification will ensure that you get fit-for-purpose, quality readymix concrete for your project. In order to get the best quality readymix concrete on site, contractors need to take careful note of a number of factors when ordering. Such attention can take the concrete's overall performance from mediocre to excellent. Apart from ordering readymix concrete merely based on strength and slump parameters, contractors can make use of their readymix suppliers' knowledge to give them greater value for money. All Southern Africa Readymix Association (SARMA) members are required to have the necessary knowledge and correct processes in place to manufacture concrete according to strict criteria. In addition, they have access to technical knowledge that allows them to produce mixes to exact customer requirements.
We stand at the dawn of what is unquestionably the greatest revolution in human learning, communication and collaboration- at a time of tsunami-like transformational forces on both a local and global playing field. The Knowledge Swarms and Experiential Hives? model, introduced in Civil Engineering (June 2016), shows that a whole new approach to learning and development is urgently needed in the engineering and construction sector. The accelerating emergence and convergence of the countless learning and collaboration technologies available, coupled with a rapidly changing new world of work, as described by the Gartner Watchlist Report (2010), and the coming of age of the millennial managers and their fluid approach to both career and capability enhancement, presents a scarce and critical skills, knowledge sharing and learning challenge never experienced before.
There is an international surge in the study and recognition of our civil engineering heritage as historians start to appreciate how advances in transportation and sanitation, to name but two, have enabled the urbanisation and economic development of the modern world. Nowhere is this better evidenced than in South Africa, where vast distances and relative isolation had to be conquered. The recognition of the Woodhead Damand the Agulhas Lighthouse by ASCE (American Society of Civil Engineers) as International Historic Engineering Landmarks speaks for itself. As the history of technology deals with tangible objects, historical photographs are an obvious and valuable primary source.
SAICE's Young Members Panel (YMP) is a grouping of young engineers under 36 representing the interests of the Institution's young members nationally. These action-oriented individuals commit a portion of their time to jointly shape a better future through providing for the growing needs and career development of the new generation of engineers. Here we present some interesting facts about the SAICE YMP and its activities.