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Gunite/Shotcrete
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Dry-mix shotcrete is a
highly efficient and cost-effective way to apply concrete or mortar,
for both new construction and repair. Properly applied, it's structurally
sound and durable. But it requires specialized knowledge, skill
and experience. It's not a job for just any contractor.
Knowles Industrial Services Corporation has been successfully applying
dry-mix shotcrete since 1953. We've developed the in-depth crew training
and quality controls necessary to ensure flawless and lasting applications.
Only an experienced applicator like Knowles has the expertise to offer
your company the full benefits of dry-mix shotcrete:
Physical Properties:
• Its high compressive strength, low absorption, low permeability and
resistance to weathering or chemicals make dry-mix shotcrete comparable
or superior to conventional concrete with the same composition.
Lower Cost:
• Eliminates or reduces the need for forms, cranes and pumps, and can
be applied at much faster rates than conventional concrete placement
or repair methods.
Efficiency:
• Speed of application is dramatically increased where access is difficult,
because mixing and application equipment can be set up as far
as 1,000 feet from the repair area.
Versatility:
• Dry-mix shotcrete can be successfully applied on virtually any surface:
flat or curved, vertical or sloped, even overhead.
• Conventional Shotcrete, consisting of Portland cement, fine aggregate
and potable water, can be enhanced with silica fume or polypropylene
fibers to improve cohesiveness, freeze-thaw resistance, and impermeability.
• Refractory Shotcrete contains specially designed cements,
such as calcium oxide or aluminas, to resist alkalis and acids,
and withstand high temperatures. It is typically used for stacks,
boilers, scrubbers, separators and tanks.
• Special Shotcretes include factory-proportioned latex-modified,
potassium silicate, magnesium phosphate, polymer and other proprietary
mixtures for added corrosion and chemical resistance.
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