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02 October 2020 | Story Leonie Bolleurs | Photo Supplied
Prof Kahilu Kajimo-Shakantu believes there are a number of benefits and lessons that the construction industry can draw if they adopt technology that can lead to sustainable construction beyond the COVID-19 era.

The construction business has been hit hard, with various negative impacts on cost, implementation timelines, profits, and others. Increased and smart adoption of technology, however, can transform the sector to make it more sustainable. 

This is the belief of Prof Kahilu Kajimo-Shakantu, Head of the Department of Quantity Surveying and Construction Management at the University of the Free State (UFS).

As president of the Association of Schools of Construction of Southern Africa (ASOCSA), she delivered the welcoming address of the 14th Built Environment conference (21, 22 September 2020). Prof Kajimo-Shakantu is the sixth president of ASOCSA.

The theme of this year’s built-environment conference, presented for the very first time in a virtual format, was Technology, Transformation and Sustainable Construction.

Identify and harness opportunities 

“It is clear that while COVID-19 remains a challenge, opportunities can be identified and harnessed even by our own construction industry through the exploitation of technological, transformative, and sustainable practices. The technology and transformation taking place now – in South Africa and beyond this COVID-19 situation – should be embraced for competitive advantage, even after the pandemic disappears,” said Kajimo-Shakantu.

Clients, consultants, contractors, and suppliers of materials and services can wholly embrace technology and transformation for sustainable, cost-effective, less wasteful, and cleaner construction processes. – Prof Kahilu Kajimo-Shakantu


She also provided some practical suggestions: “Technologies such as remote monitoring of construction sites and selected construction site operations through high-definition cameras and robust software should be encouraged as a way of minimising health and safety risks and mobility costs during the project duration, and at the same time ensuring an all-time virtual presence on site for various purposes.”

“Virtual contract progress meetings, site meetings, and supervision of specialised work are some of the benefits that the construction industry could gain if they adopt technology that can lead to sustainable construction beyond the COVID-19 era,” she added. 

Encourage meaningful partnerships

It is no longer a case of business as usual. Prof Kajimo-Shakantu believes stronger collaboration and meaningful partnerships must be encouraged among all stakeholders if the conference theme is to be fully actualised for the benefit of the construction industry, as it races towards attaining sustainable construction.

She said: “Clients, consultants, contractors, and suppliers of materials and services can wholly embrace technology and transformation for sustainable, cost-effective, less wasteful, and cleaner construction processes.”

Many insightful and thought-provoking papers touching on construction industry challenges and opportunities, as well as the teaching and learning of students, were delivered by both local and international delegates. 

The conference is believed to be one of the major cutting-edge built-environment conferences on the African continent. 

A guest of honour at the event was the Vice-Rector: Academic at the University of the Free State, Dr Engela van Staden. In her welcome address, she challenged delegates to establish a consistent channel for disseminating some of the research outcomes to industry stakeholders, including the respective government departments. “It is time to go beyond building rich databases and prestigious publications for our universities,” she said.

Keynote speakers included Prof Monty Sutrisna, Professor of Construction and Project Management and the Head of the School of Built Environment at Massey University, New Zealand; Prof Obas John, Professor of Sustainability and Environmental Law and Director of Internationalisation at London South Bank University; Prof David Edwards, Professor of Plant and Machinery Management, Birmingham City University, England; and Dr Reza Hosseini, the Associate Head of School (research) in the School of Architecture and Built Environment, Deakin University, Australia.

The various interesting peer-reviewed research papers that were delivered, addressed topical issues that affect the built environment not only in South Africa, but also in the regions beyond.

News Archive

Two scientists part of team that discovers the source of the highest energy cosmic rays at the centre of the Milky Way
2016-03-22

Description: Giant molecular clouds  Tags: Giant molecular clouds

Artist's impression of the giant molecular clouds surrounding the Galactic Centre, bombarded by very high energy protons accelerated in the vicinity of the central black hole and subsequently shining in gamma rays.
Artist's impression: © Dr Mark A. Garlick/ H.E.S.S. Collaboration

Spotlight photo:
Dr Brian van Soelen and Prof Pieter Meintjes of the UFS Department of Physics.
Photo: Charl Devenish

H.E.S.S. (High Energy Stereoscopic System) scientists publically revealed their latest galactic discovery in the international science journal, Nature, on 16 March 2016. These scientists were able to pinpoint the most powerful source of cosmic radiation – which, up to now, remained a mystery.

Part of this team of scientists are Prof Pieter Meintjes and Dr Brian van Soelen, both in the University of the Free State (UFS) Department of Physics. Dr Van Soelen explains that they have discovered a proton PeVatron – a source that can accelerate protons up to energies of ~1 PeV (10^15 eV) – at the centre of the Milky Way. The supermassive black hole called Sagittarius A has been identified as the most plausible source of this unprecedented acceleration of protons.

The protons are accelerated to Very High Energy (VHE) gamma rays. The energy of these protons are 100 times larger than those achieved by the Large Hadron Collider at CERN (the European Organization for Nuclear Research).

According to Dr Van Soelen, the fact that this research has been published in Nature demonstrates the importance and pioneering nature of the research conducted by H.E.S.S. The H.E.S.S. observatory – operational in Namibia – is a collaboration between 42 scientific institutions in 12 countries.

In 2006, H.E.S.S. was awarded the Descartes Prize of the European Commission – the highest recognition for collaborative research – and in 2010 the prestigious Rossi Prize of the American Astronomical Society. The extent of the observatory’s significance places it among the ranks of the Hubble Space Telescope and the telescopes of the European Southern Observatory in Chile.

“The next generation VHE gamma-ray telescope,” Dr Van Soelen says, “will be the Cherenkov Telescope Array (CTA), which is currently in the design and development stage.” Both Dr Van Soelen and Prof Meintjes are part of this project as well.

H.E.S.S. has issued a complete statement about the paper published in Nature.

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