JOHANNESBURG (Reuters) – A new study shows cement is the cheapest, most environmentally friendly way to build brick walls in Australia and may have the potential to provide more homes with affordable housing.
The research, by researchers at the University of Adelaide, found cement was the cheapest cement used in Australia.
“This is not a surprise given that cement is one of the cheapest building materials,” said co-author Professor Paul B. Grew, director of the Australian Centre for Sustainable Construction.
“Cement is generally a relatively lightweight substance, with the addition of lime being a fairly heavy addition.”
Cement has been used for years to reinforce bricks and walls around the world, including in China, Brazil and Australia, to help them resist being damaged by earthquakes and floods.
“Cement was used in buildings in many parts of the world for centuries, but it was only in the past decade or so that cement started to appear in Australia as a building material,” Grew said.
“We found that cement was cheaper, more environmentally friendly, and had fewer environmental impacts than other cement materials.”
It is an attractive building material because of its relatively low carbon footprint.
“The study looked at the environmental impact of cement cement from various locations around the country, from Adelaide to Perth.
It found that for each tonne of cement produced, the environment savings from cement cement was equivalent to about 0.5 metric tonnes of CO2 emissions.”
In contrast, cement was responsible for over 2.5 tonnes of carbon dioxide emissions and the same amount of CO 2 is produced in the building of steel, a product that has a relatively high carbon footprint,” Grown said.
The study found that the total amount of greenhouse gas emissions from cement used per tonne produced was about the same as steel, or about 0,5 tonnes.”
The environmental benefits of cement were most apparent for Australia, with a significant reduction in CO2 greenhouse gas emission per ton of cement used, with some emissions decreasing by as much as 50 percent,” Greden said.