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Quick on the heels of the trend towards “smart” buildings, the building industry is now witnessing a sharply increasing preference by designers and specifiers for self healing building materials. Research groups throughout the world have started to explore concepts and materials systems that impart self-healing properties for a variety of applications. The upcoming 1st International Conference on Self-Healing Materials in Noordwijk , Netherlands (April 18 to 20, 2007, visit www.selfhealingmaterials.nl for further information) will take stock of insights and benefits gathered thus far. The Penetron system exemplifies this emerging trend as it self-heals micro-cracks in concrete throughout the life of the structure.

Self healing of cracks in concrete

1. The PENETRON® chemicals penetrate into the capillary tracts of the concrete by pressure of osmosis, Brownian movement and dry particle reactions.
2. The active ingredients of PENETRON® react with various concrete minerals forming insoluble crystals which fill out cracks, pores and voids up to a width of at least 400 microns. This crystalline growth will eventually take place deep inside the concrete structure .
3. Water molecules (and a wide range of chemicals) are no longer able to pass through the concrete. However, air can still pass allowing the concrete to breathe and avoiding vapor pressure to build.
4. In the absence of further moisture, PENETRON® components lie dormant. Should moisture recur at any time, the sealing process resumes automatically and advances ever deeper into the concrete.

PENETRON® continuously seals and re-seals. Once applied, the effect of PENETRON® is permanent.

Company: ICS Penetron Intl. Ltd.

URL: http://www.penetron.com/newsletter/mar07.html

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Other news from ICS Penetron Intl. Ltd. (Mar 9, 2004 - Apr 13, 2008):
Penetron project showcasing concrete in salt water conditions (Feb 25, 2008)
VivoCity (Dec 7, 2007)
New projects - The Sail, 2007 (Oct 29, 2007)
Penetron Receives BASTA Registration (Apr 19, 2007)
Peneseal FH – Concrete Densification Formula (Dec 18, 2006)
Penetron Used At Pendleton Station (Oct 25, 2006)
Penetron cavity-fill method (Sep 22, 2006)
PENEBAR SW waterstops (Jul 10, 2006)
Penetron Triumphant At Campo Pequeno (Jun 6, 2006)
Penetron - Waterproofing in the hydroelectric industry (Apr 19, 2006)
Qinghuangdao Olympic Stadium - China (Mar 20, 2006)
VivoCity, Singapore: Penetron Admix in salt water environments (Feb 28, 2006)
Penetron awarded (Jan 23, 2006)
Product Feature - Penetron Admix Enhanced Shotcrete (PAES) (Nov 16, 2005)
Penetron System Chosen for Warsaw Frederic Chopin Airport (Oct 3, 2005)
Penetron System Receives NSF 61 Certification (Sep 6, 2005)
New in AECinfo: Penetron Integral Capillary Concrete Waterproofing Systems (Apr 13, 2005)
ICS Penetron Selected to Waterproof Aquarium at Swedish National Science Center (Nov 19, 2004)

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