Nanotechnology Now

Our NanoNews Digest Sponsors





Heifer International

Wikipedia Affiliate Button


android tablet pc

Home > News > If walls could speak, they'd say 'innovation'

April 15th, 2008

If walls could speak, they'd say 'innovation'

Abstract:
Concrete is created by mixing cement, water, gravel and sand; typically these ingredients are mixed in a truck at a cement plant. When it arrives at the construction site, ideally the concrete should be like a thick liquid that can be easily shaped into moulds. But sometimes - for instance, the cement truck gets caught in a traffic jam - the concrete is already beginning to set when it arrives at the site, making it difficult to manipulate.

That's where nanotechnology comes in. By controlling the hydration process - the curing of cement into concrete - at the atomic or molecular level, a researcher at the National Research Council's Institute for Research in Construction has found a way to create a more workable concrete. And it has been shown to be a stronger concrete that is less susceptible to cracking.

A controlled-release "superplasticizer" in the cement can work to speed up or slow down hydration. The effect of the superplasticizer is manipulated by adjusting the cement's PH level, as well as other variables, as it cures.

"You can [more] accurately time the hydration process so the concrete will be used at the right time," says Ottawa-based researcher Laila Raki, who is working with a construction chemical company to try to mass market the formula. "In the end, the industry will be able to use a concrete with a longer life span."

Source:
reportonbusiness.com

Bookmark:
Delicious Digg Newsvine Google Yahoo Reddit Magnoliacom Furl Facebook

Related News Press

News and information

Tissue regeneration using anti-inflammatory nanomolecules August 22nd, 2014

A breakthrough in imaging gold nanoparticles to atomic resolution by electron microscopy August 22nd, 2014

Ultra-short pulse lasers & Positioning August 21st, 2014

Malvern’s Dr Alan Rawle talks TLAs in plenary lecture at Particulate Systems Analysis conference August 21st, 2014

Materials/Metamaterials

Shaping the Future of Nanocrystals: Berkeley Lab Researchers Obtain First Direct Observation of Facet Formation in Nanocubes August 21st, 2014

Rice physicist emerges as leader in quantum materials research: Nevidomskyy wins both NSF CAREER Award and Cottrell Scholar Award August 20th, 2014

Promising Ferroelectric Materials Suffer From Unexpected Electric Polarizations: Brookhaven Lab scientists find surprising locked charge polarizations that impede performance in next-gen materials that could otherwise revolutionize data-driven devices August 18th, 2014

Nano Bonds Increase Raw Strength of Fireproof Concretes August 18th, 2014

Interviews/Book Reviews/Essays/Reports/Podcasts/Journals

Tissue regeneration using anti-inflammatory nanomolecules August 22nd, 2014

A breakthrough in imaging gold nanoparticles to atomic resolution by electron microscopy August 22nd, 2014

Shaping the Future of Nanocrystals: Berkeley Lab Researchers Obtain First Direct Observation of Facet Formation in Nanocubes August 21st, 2014

Water window imaging opportunity: A new theoretical study elucidates mechanisms that could help in producing coherent radiations, ultimately promoting high-contrast imaging of biological samples August 21st, 2014

Construction

Nano Bonds Increase Raw Strength of Fireproof Concretes August 18th, 2014

Silicene Labs Announces the Launch of Patent-Pending, 2D Materials Composite Index™ : The Initial 2D Materials Composite Index™ for Q2 2014 Is: 857.3; Founders Include World-Renowned Physicist and Seasoned Business and IP Professionals July 24th, 2014

Iranian Researchers Produce Protein Nanoparticles from Chicken Feather June 11th, 2014

Scientists Produce Self-Cleaning Coatings on Glass Substrate March 17th, 2014

NanoNews-Digest
The latest news from around the world, FREE



  Premium Products
NanoNews-Custom
Only the news you want to read!
 Learn More
NanoTech-Transfer
University Technology Transfer & Patents
 Learn More
NanoStrategies
Full-service, expert consulting
 Learn More














ASP
Nanotechnology Now Featured Books




NNN

The Hunger Project







© Copyright 1999-2014 7th Wave, Inc. All Rights Reserved PRIVACY POLICY :: CONTACT US :: STATS :: SITE MAP :: ADVERTISE