Nanotechnology Now

Our NanoNews Digest Sponsors

Heifer International

Wikipedia Affiliate Button

Home > Press > Iranian Researchers Prolong Life of Steel Armatures in Concrete Structures

Abstract:
Iranian researchers from University of Tehran used nanocomposite coatings to increase the strength and life of concrete structures.

Iranian Researchers Prolong Life of Steel Armatures in Concrete Structures

Tehran, Iran | Posted on January 9th, 2015

The coating has self-repairing properties and the application of the coating reduces maintenance and repairing costs of the structures, specially at seaside.

The presence of concrete infrastructures is necessary in all construction industries and projects. Corrosion of steel armatures inside the concrete results in the destruction of a huge concrete complex. This phenomenon is inevitable in concrete structures, and it becomes more severe in the structures floating in seawater.

The researchers used nanocomposite coating with self-repairing properties to overcome this problem. Based on the results, the coating creates unique anti-corrosive properties to the extent that the reduction in the taking-out strength of the armature is negligible in comparison with that of normal samples after being floated in seawater for six months.

Test results showed that after six months, the resistance against corrosion gradually decreases in the witness sample and in the sample with epoxy coating. However, in the sample with self-repairing nanocomposite coating, the reduction does not have a linear trend, and much higher corrosion resistance is observed in these samples.

The use of polyaniline/camphorsulfonate nanoparticles (self-repairing agent) results in the presence of the particles all over the nanocomposite even at low concentrations. Therefore, it can be claimed that in case of corrosion at any place, polyaniline/camphorsulfonate nanoparticles are present to stop the corrosion reactions. This does not happen when the particles are used at micrometric scale.

Results of the research have been published in Corrosion Science, vol. 90, issue 1, 2015, pp. 239-247.

####

For more information, please click here

Copyright © Fars News Agency

If you have a comment, please Contact us.

Issuers of news releases, not 7th Wave, Inc. or Nanotechnology Now, are solely responsible for the accuracy of the content.

Bookmark:
Delicious Digg Newsvine Google Yahoo Reddit Magnoliacom Furl Facebook

Related News Press

News and information

Shape-shifting sensors could catch early signs of cancer October 19th, 2018

Study provides insight into how nanoparticles interact with biological systems: Findings can help scientists engineer nanoparticles that are ‘benign by design’ October 18th, 2018

Iran Produces Cooling Fabrics Using Nanotechnology October 17th, 2018

Iran World’s Second Largest Producer of Nano-Catalysts October 17th, 2018

Discoveries

Shape-shifting sensors could catch early signs of cancer October 19th, 2018

Study provides insight into how nanoparticles interact with biological systems: Findings can help scientists engineer nanoparticles that are ‘benign by design’ October 18th, 2018

Researchers quickly harvest 2-D materials, bringing them closer to commercialization: Efficient method for making single-atom-thick, wafer-scale materials opens up opportunities in flexible electronics October 12th, 2018

Graphene shows unique potential to exceed bandwidth demands of future telecommunications October 12th, 2018

Materials/Metamaterials

Aculon, Inc. Enters into Strategic Partnership Agreement with Henkel Corporation to Supply Key Mobile Device Manufacturers with NanoProof® PCB Waterproof Technology October 17th, 2018

Big award enables study of small surfaces: Rice U.'s Matt Jones wins Packard Fellowship to view nanoscale chemical reactions October 15th, 2018

Graphene controls surface magnetism at room temperature October 8th, 2018

Unmasking corrosion to design better protective thin films for metals: Researchers from three universities team up to analyze oxide films at atomic level October 3rd, 2018

Announcements

Shape-shifting sensors could catch early signs of cancer October 19th, 2018

Study provides insight into how nanoparticles interact with biological systems: Findings can help scientists engineer nanoparticles that are ‘benign by design’ October 18th, 2018

Iran Unveils Its First Homegrown 3D Nano Printer October 17th, 2018

Fat-Repellent Nanolayers Can Make Oven Cleaning Easier October 17th, 2018

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

Study provides insight into how nanoparticles interact with biological systems: Findings can help scientists engineer nanoparticles that are ‘benign by design’ October 18th, 2018

Big award enables study of small surfaces: Rice U.'s Matt Jones wins Packard Fellowship to view nanoscale chemical reactions October 15th, 2018

Graphene shows unique potential to exceed bandwidth demands of future telecommunications October 12th, 2018

High-performance self-assembled catalyst for SOFC October 12th, 2018

Construction

A Comprehensive Guide: The Future of Nanotechnology September 13th, 2018

Weak hydrogen bonds key to strong, tough infrastructure: Rice University lab simulates polymer-cement composites to find strongest, toughest materials January 29th, 2018

The next generation of power electronics? Gallium nitride doped with beryllium: How to cut down energy loss in power electronics? The right kind of doping November 9th, 2017

Corrosion in real time: UCSB researchers get a nanoscale glimpse of crevice and pitting corrosion as it happens September 14th, 2017

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



  Premium Products
NanoNews-Custom
Only the news you want to read!
 Learn More
NanoStrategies
Full-service, expert consulting
 Learn More











ASP
Nanotechnology Now Featured Books




NNN

The Hunger Project