Home > Common Concrete Problems > Concrete Heaving
Concrete Heaving
The St. Louis and
Kansas City area may
experience concrete
problems due to
frost heaving. This
can damage many
types of concrete
and masonry
including sidewalks,
patios, slabs,
retaining walls, and
foundation walls.
The cold
temperature in St.
Louis and Kansas City causes the cement
to contract while
heat causes
it to expand. When
water freezes it
takes up 10% more
volume than when it
is liquid.
When
freezing water
occupies a confined
space, it exerts
tremendous expansive
force. This extreme
force will cause the cement to heave.
Other causes of
concrete heaving are
when the clay-rich
soil in Kansas City
and St. Louis
absorbs the water rather than
allowing it to drain
through. When this
water is absorbed,
it can cause the
same destruction as
frost heaving. The clay soil will swell, exerting force on the surrounding concrete.
Concrete Heaving Solutions
Concrete heaving
repair uses
polyjacking to get
your concrete back
to its original
level. This method
is much more cost-effective than
replacing concrete.
We use a high-density
polyurethane that
is injected into
the affected area to
fill any voids
beneath the
concrete.
The heaving repair process is
relatively simple
- A small hole
is drilled
through the
affected
concrete
- Polyurethane
foam is injected
into the void
beneath the
concrete, where it expands, raising the concrete to the desired level
- The holes
are filled and
the poly equipment is removed
- The
concrete surface
is immediately
ready for use, due to the short hardening time.
There are many
advantages to
high-density
polyurethane
concrete leveling
compared to other
methods, like mudjacking.
Some of
the advantages of polyurethane heaving repairs
- More
economical -
provides a
permanent
solution that is
much more cost-effective than
removing and
replacing
concrete.
- Superior
accuracy -
Polyurethane
foam creates its
own hydraulic
lift so we can
control the
lifting process
precisely.
-
Conformability -
Polyurethane
foam contours to
the size and
shape of the
voids to
completely
support the
pavement with
100% coverage.
- Lighter
weight -
Polyurethane
adds only 3-5
pounds per cubic
foot to the sub-base compared to
+100 pounds
that mudjacking
grout adds.
- Better
structural
integrity - The
concrete
pavement
injection holes
are only 5/8" in
diameter
compared to 3"
or larger for
other concrete
lifting methods.
- Moisture
resistant - seals the
underside of
concrete
pavement joints
and cracks to
eliminate water
penetration and
erosion issues.
Polyjacking.com has the
experience and uses
the best products
for concrete heaving
repair. We serve the
Kansas City, St.
Louis, and
surrounding areas for all of your
concrete repair
needs. Contact us today!