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Tunnel waterproofing is often done by using shotcrete structures that lead the water from the rock into a subsurface draining system. The main problem with this solution is making the shotcrete waterproof. Water leakage is normally caused by cracks in the shotcrete, bad workmanship and porous shotcrete. The traditional remedy was to spray Penetron onto the shotcrete surface. While this is very efficient, it is also labor intensive and hence expensive... In recent years, a better solution was found; using Penetron Admix enhanced shotcrete!

Penetron Admix enhanced shotcrete (PAES) has been extensively tested by accredited concrete laboratories. The test results show that PAES reached the maximum result in the freeze/thaw test SS(EN)-137244 and reduced the depth of penetration of water under pressure Norm SS EN-12390-8 from 21mm for the control concrete to 7mm for PAES. The adhesion values of this shotcrete also increases.

Company: ICS Penetron Intl. Ltd.

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Other news from ICS Penetron Intl. Ltd. (Nov 16, 2002 - Apr 13, 2008):
Penetron project showcasing concrete in salt water conditions (Feb 25, 2008)
VivoCity (Dec 7, 2007)
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Penetron Receives BASTA Registration (Apr 19, 2007)
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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)
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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