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

Novel Rocket Design Flight Tested: New Rocket Propellant and Motor Design Offers High Performance and Safety October 23rd, 2014

MEMS & Sensors Technology Showcase: Finalists Announced for MEMS Executive Congress US 2014 October 23rd, 2014

Nanoparticle technology triples the production of biogas October 23rd, 2014

SUNY Polytechnic Institute Invites the Public to Attend its Popular Statewide 'NANOvember' Series of Outreach and Educational Events October 23rd, 2014

Materials/Metamaterials

Researchers patent a nanofluid that improves heat conductivity October 22nd, 2014

Materials for the next generation of electronics and photovoltaics: MacArthur Fellow develops new uses for carbon nanotubes October 21st, 2014

Super stable garnet ceramics may be ideal for high-energy lithium batteries October 21st, 2014

Could I squeeze by you? Ames Laboratory scientists model molecular movement within narrow channels of mesoporous nanoparticles October 21st, 2014

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

NYU Researchers Break Nano Barrier to Engineer the First Protein Microfiber October 23rd, 2014

Iranian Scientists Apply Nanotechnology to Produce Surgery Suture October 23rd, 2014

Iranian, Malaysian Scientists Study Nanophotocatalysts for Water Purification October 23rd, 2014

Strengthening thin-film bonds with ultrafast data collection October 23rd, 2014

Construction

7th Nanotechnology Festival, Exhibition Kicks Off Work in Iran October 7th, 2014

Iranian Scientists Obtain Nanostructured Steel Production Method September 25th, 2014

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

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