News tagged with cement

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How to make stronger, 'greener' cement

Concrete is the world's most-used construction material, and a leading contributor to global warming, producing as much as one-tenth of industry-generated greenhouse-gas emissions. Now a new study suggests ...

Sep 25, 2014
4.5 / 5 (17) 4

Fly ash builds green cement mixture

An eco-friendly cement, known as Alkali Pozzolan Cement (APC), containing a mixture of fly ash, dry lime powder and sodium sulphate under specific scaffolding conditions has been developed by Curtin University ...

Sep 17, 2014
4.8 / 5 (6) 4

A new, greener cement to meet future demand

An EPFL-led consortium is developing a new blend of cement that promises to reduce the carbon footprint of concrete by up to 40%. Now it has received financial backing from the Swiss Agency for Development and Cooperation ...

Jun 03, 2014
5 / 5 (2) 0

Why cement tends to thicken

Researchers at the ETH Zurich have unraveled the microscopic mechanism behind shear thickening: the increase in viscosity with speed observed for dense particle suspensions under flow. The study has a direct ...

Oct 01, 2013
4 / 5 (4) 5 | with audio podcast

'New old bricks' for the construction industry

Making bricks is a very resource- and energy-intensive process. Meanwhile, when existing brick buildings are demolished, most of the resulting debris, which can contain many thousands of whole bricks, is ...

Sep 17, 2013
5 / 5 (2) 0

Old concrete can protect nature

Usually we think of demolished concrete walls and floors as environmental contaminants, but in fact this material may turn out to be a valuable resource in nature protection work. This is the conclusion from ...

Aug 22, 2013
4.6 / 5 (8) 4

Researchers turn cement into metal

(Phys.org) —In a move that would make the Alchemists of King Arthur's time green with envy, scientists have unraveled the formula for turning liquid cement into liquid metal. This makes cement a semi-conductor ...

May 27, 2013
4.5 / 5 (76) 5 | with audio podcast