UWC researchers turn fly ash into safe economical building material

Researchers at UWC are developing ways to turn the huge dumps of fly ash at power stations into value-added products.

Fly ash is a by-product of the burning of powdered coal or other materials.

University of the Western Cape's Prof Leslie Petrik says they have found a way to turn fly ash into geopolymer concrete used in building material.

We are producing a fine material that bonds strongly and will not propagate cracks very easily.

Prof Leslie Petrik, Professor in the Department of Chemistry at UWC

We are saving in using cement which is a great advantage.

Petrik says when making geopolymer there's no need for any heating. She says geopolymer concrete prevents any form of corrosion.

We have a problem building with concrete because of air and salt ingress and eventually causes the metal inside the concrete to start rusting.

Prof Leslie Petrik, Professor in the Department of Chemistry at UWC

The research students at UWC are currently working on a standardisation process to make sure that the product is of the right quality.

To hear more of this interview, listen below:


Recommended

by THE NEWSROOM

702 welcomes all comments that are constructive, contribute to discussions in a meaningful manner and take stories forward.

However, we will NOT condone the following:

  • Racism (including offensive comments based on ethnicity and nationality)
  • Sexism
  • Homophobia
  • Religious intolerance
  • Cyber bullying
  • Hate speech
  • Derogatory language
  • Comments inciting violence.

We ask that your comments remain relevant to the articles they appear on and do not include general banter or conversation as this dilutes the effectiveness of the comments section.

We strive to make the 702 community a safe and welcoming space for all.

702 reserves the right to: 1) remove any comments that do not follow the above guidelines; and, 2) ban users who repeatedly infringe the rules.

Should you find any comments upsetting or offensive you can also flag them and we will assess it against our guidelines.

702 is constantly reviewing its comments policy in order to create an environment conducive to constructive conversations.

Read More
The Chamber of Legal Students inundated with calls for help

The Chamber of Legal Students inundated with calls for help

The Chamber has grown from 7 to 80 staff members in a short period as more learners need representation for disciplinary hearings.

Kenzo Abrahams is UWC’s first CERN PhD bursary holder

Kenzo Abrahams is UWC’s first CERN PhD bursary holder

Abrahams is investigating the conundrum of why nuclei follow a zig-zag of different shapes.

UWC ranked top science university in Africa

UWC ranked top science university in Africa

UWC is becoming one of the continent’s great success stories, bagging another accolade for cutting edge space experiments.

Inspiring 'ou toppie' bags his Master's at 71

Inspiring 'ou toppie' bags his Master's at 71

A dream deferred, but not forgotten. Over 30 years after his first try at a Master's degree, Anthony de le Harpe graduated at UWC.

The world is getting fatter (and fatter)

The world is getting fatter (and fatter)

Professor David Sanders, Head of the School of Public Health at UWC, explains why the global population is getting fatter by the year.

Popular articles
Almost 30 million SA ID numbers compromised after site hacked

Almost 30 million SA ID numbers compromised after site hacked

Independent Marketing Consultant in the Technology Space, Andrew Fraser says this looks like a leak and not a hack.

Signal jammers and other devices confiscated at China Mall

Signal jammers and other devices confiscated at China Mall

Several communications devices were confiscated from businesses in a raid by Icasa at China Mall on Wednesday.

Michael Jordaan (ex FNB CEO, ex Chair of Mxit) bares his soul about money

Michael Jordaan (ex FNB CEO, ex Chair of Mxit) bares his soul about money

The Money Show's Bruce Whitfield interviews Rain Director Michael Jordaan about his money beliefs and history.

'The university degree is dead'

'The university degree is dead'

Flux Trends founder Dion Chang gives five reasons why he believes getting a degree is past its sell by date.

3 easy questions could bag you R2000!

3 easy questions could bag you R2000!

WIN R2000! But only if you can prove you're a whiz of the MTN Biz Quiz by answering the following three questions...

5 ways the NSFAS funding model will change in 2017

5 ways the NSFAS funding model will change in 2017

The National Student Financial Aid Scheme (NSFAS) will pilot a new funding model in 2017. NSFAS chairperson Sizwe Nxasana explains.