Owner Kanton Tessin
Engineering MPN Ingegneria SA, Muzzano
Construction Geo-Edil SA, Lugano
Waterproofing Drytech SA Bedano/Tessin
PREFABRICATED UNDERPASS, AGNO / The Drytech White Tank System allows waterproofing of underpasses without interrupting the traffic and above all without damaging the waterproofing.
Commissioned by Muzzano Town Council (Canton of Ticino, Switzerland), the pedestrian underpass in Agnuzzo was built away from the road using Drytech waterproof concrete. The joints were prepared for injecting with resin using DRYset channels. The shrinkage cracks were controlled using DRYset Crack inducers. The monolith was then pushed by jacks under the road, while the ground was gradually dug out from within. Once in place, the monolith was injected from inside using DRYflex resin: the elastic, foam qualities of the resin ensure the waterproofing adapts to the vibrations produced by the traffic above, both from cars or trains.
Waterproofing ex-post via injections has several benefits: on the one hand it cannot be damaged during construction and on the other it ensures that any cracks formed during the pushing stage are sealed.
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