|
THE PRODUCT - HOW IT WORKS
PERMACRETE® Systems Limited provides a superior method of concrete
repair, utilizing PERMACRETE® brand products.
The most common type of repair for cracks has typically been the
use of surface patches on the inside, or excavation and patching the
crack on the outside with a cementitious material and/or roofing tar.
Epoxy or chemical injection of cracks is also common. These repairs do not
function through prolonged cycles of contraction and expansion of the concrete as a result of thermal cycling.
These are generally temporary measures in stopping an actively leaking crack.
The best method of crack repair is to put a flexible gasket through the entire wall thickness.
To achieve this, PERMA-SEAL® Flexible Resins were developed. As all resins are injected from the inside
utilizing THERMO-JET® technology, customers do not experience the expense or inconvenience of disturbing
their landscaping. These specially formulated repair materials are injected as a liquid in a precise, carefully
monitored fashion, utilizing exact pressure to ensure penetration through the entire wall thickness. As they
fill the crack and all capillaries, from the bottom to the top and from the inside out, they form
a custom-fit seal by thermally fusing to the concrete. PERMA-SEAL® Flexible Resins are two-component, thermosetting,
fast reacting, high tensile strength prepolymer elastomers.
Because PERMA-SEAL® Flexible Resins allow for movement within the wall, our licensed dealers
can offer their clients a guarantee that the repaired crack will not leak for as long as they
own the property.
PERMACRETE® has successfully completed injection projects which include:
- cracks and holes in concrete walls, balconies, bulkheads
- around pipes and conduits,
- seals in manholes
- cracks in swimming pools, holding tanks, reservoirs
- overhead cracks in parking decks, mezzanines, etc.
- Canal and lock repairs, aqua-ducts, etc.
|
Cracks in foundation walls
are a common occurance and are caused by
shrinkage, settlement, thermal cycling or structural defects. Cracks
usually propagate the entire thickness of the wall and extend from the
top of the foundation wall to the bottom.
Shrinkage Cracks
usually occur in locations where there is a designated
opening or a reduction in the height of the foundation walls. Common
places to find these cracks are at the bottom corners of windows and
from the bottom corner of a 90° stepdown in a foundation. Shrinkage
cracks tend to be slightly diagonal in orientation.
Settlement Cracks
occur more towards the center of a particular wall
and are slightly wider at the top and can become very hairline at
the bottom. These cracks are typically vertical in orientation.
Expansion Cracks
occur because of thermal cycles which cause expansion
and contraction of the concrete. This change in volume puts additional
pressure on any existing stressed points, resulting in a crack. The
crack actually forms an expansion joint to allow for this movement.
Therefore, a flexible repair material maintains the expansion joint
while sealing the joint against leakage!
Structural Cracks
occur because of construction defects that affect the
integrity of the foundation wall. They usually have an exterior cause
that may need to be addressed before the foundation can be repaired.
Eg. Retaining walls, stairwells, bulkheads, steps. CRACK-WELD epoxy
is is water insensitive and formulated for structural repairs.
|
|
