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Hydrophobic Concrete Technology



CTI Consultants for Roads & Traffic Authority of New South Wales (Australia)

"The (Caltite) hydrophobic pore-blocking additive performed very well, especially at the deeper intervals where chloride reductions in excess of 97% were recorded. These results are better than those for the organo-silanes, probable due to the presence of the hydrophobic additive throughout the concrete rather than only in the outer layer as is the case for the post-applied sealers...based on these results, (Caltite) can be used to protect concrete against moisture and chloride ingress under conditions of atmospheric exposure."


Vicroads - Concrete Materials Technology Dept. State Government of Victoria, Australia

"The HPI (Caltite) concrete has been found to outperform both conventional and SCM's (slag, silica fume) concrete with far greater reductions in Volume of Permeable Voids (VPV). (Caltite) is an excellent material for reducing the VPV of concretes."

Engineering and Water Supply Dept., Government of South Australia

"(EVERDURE CALTITE) can be of enormous benefit in sustaining and prolonging the life of a concrete structure."

City of Glenelg, South Australia

"Recent inspection shows the CALTITE concrete to be still quite sound (after 20 years), whereas the normal concrete shows severe aggregate exposure and areas of cracking due to steel corrosion."

Taywood Engineering Ltd, UK

"Cores taken from CALTITE concrete exposed to tidal immersion for up to 17 years showed no signs of corrosion of the embedded reinforcing bar and little surface erosion of the cement matrix."

TROW, Canada

"The EVERDURE CALTITE mix meets the performance expectations of a latex- modified concrete with regard to chloride penetration."

Institute TNO, Netherlands

"Intrusion of chlorides by diffusion of seawater transport is diminished by the use of CALTITE."