As a knowledgeable and experienced shotcrete partner, Shotcrete
Technologies Inc has been providing quality products and services
to the world's tunnelling industry for a quarter of a century.
Shotcrete
Technologies professionals are involved from start to finish
of every project, working on every aspect of specification,
mix design and material handling logistics to ensure the most
efficient and cost-effective application of shotcrete.
The
Shotcrete Technologies line of quality products includes the SHOT-TECH
ROBOTIC ARM, the industry standard Shot-Set 250 liquid accelerator,
the new ST-ALKALI FREE ACCELERATOR, the Shot-Tech Waterline (a
geotextile waterproofing membrane for use with shotcrete), Shot-Tech
Nozzles Assemblies, and Superplasticisers, retarders and other
additives.
Applications include highway, railway, metro and hydro tunnels;
mines; slope stabilization; building foundations; and concrete
repair and restoration.
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Shotcrete Technologies personnel are well-versed in modern techniques,
including robotic spraying arms, silica fume, fibre reinforced
shotcrete, polymer shotcrete, NATM, ground support systems, and
material handling and transport.
The company has recently been involved in major tunnelling projects
such as the Red Line Hollywood station in Los Angeles, US; San
Roque irrigation tunnels in the Philippines; Tren Urbano metro
in Puerto Rico; and Wine Caves in California, US. Shotcrete Technologies
products are also in extensive use on mines in Australia, Peru
and the US.
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A typical Shotcrete Technologies response concerned the 11.4 km-long
Trasvases Manabi water transfer tunnel in Ecuador, which was driven
in record time by Brazilian contractor Odebrecht. In order to
maximize the advantage of early completion of the tunnel, it was
necessary to speed up the erection of the spillway walls of the
Conguillo Dam portion of the works. Shotcrete Technologies pulled
together all of the necessary logistics, including application
experts, mix designs, local supplies of sand, aggregate and plasticizer,
and training of operatives.
Subsequently, some 180 cu m/day of 32 Mpa shotcrete was placed,
using two pumps on two shifts. A total of over 6,000 cu m was
placed in half the time it would have taken to install conventional
concrete shuttered walls. As a result, project completion was
advanced sufficiently to catch an extra rainy season, to the immense
benefit of the local Ecuadorean economy.
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