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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

Water research aids decision making on national level
2015-05-25

Photo: Leonie Bolleurs

With water being a valuable and scarce resource in the central regions of South Africa, it is no wonder that the UFS has large interdisciplinary research projects focusing on the conservation of water, as well as the sustainable use of this essential element.

The hydropedology research of Prof Pieter le Roux from the Department of Soil, Crop and Climate Sciences and his team at the UFS focuses on Blue water. Blue water is of critical importance to global health as it is cleared by the soil and stored underground for slow release in marshes, rivers, and deep groundwater. The release of this water bridges the droughts between showers and rain seasons and can stretch over several months and even years. The principles established by Prof Le Roux, now finds application in ecohydrology, urban hydrology, forestry hydrology, and hydrological modelling.

The Department of Agricultural Economics is busy with three research projects for the Water Research Commission of South Africa, with an estimated total budget of R7 million. Prof Henry Jordaan from this department is conducting research on the water footprint of selected field and forage crops, and the food products derived from these crops. The aim is to assess the impact of producing the food products on the scarce freshwater resource to inform policy makers, water managers and water users towards the sustainable use of freshwater for food production.

With his research, Prof Bennie Grové, also from this department, focuses on economically optimising water and electricity use in irrigated agriculture. The first project aims to optimise the adoption of technology for irrigation practices and irrigation system should water allocations to farmers were to be decreased in a catchment because of insufficient freshwater supplies to meet the increasing demand due to the requirements of population growth, economic development and the environment.

In another project, Prof Grové aims to economically evaluate alternative electricity management strategies such as optimally designed irrigation systems and the adoption of new technology to mitigate the substantial increase in electricity costs that puts the profitability of irrigation farming under severe pressure.

Marinda Avenant and her team in the Centre for Environmental Management (CEM), has been involved in the biomonitoring of the Free State rivers, including the Caledon, Modder Riet and part of the Orange River, since 1999. Researchers from the CEM regularly measures the present state of the water quality, algae, riparian vegetation, macro-invertebrates and fish communities in these rivers in order to detect degradation in ecosystem integrity (health).

The CEM has recently completed a project where an interactive vulnerability map and screening-level monitoring protocol for assessing the potential environmental impact of unconventional gas mining by means of hydraulic fracturing was developed. These tools will aid decision making at national level by providing information on the environment’s vulnerability to unconventional gas mining.

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