|
2423 Ravine Road
Kalamazoo, MI 49004
Phone: (269) 345-0567
Fax: (269) 345-9357
| |
   STRUCTURAL CONCRETE RESTORATION
|
 |
After support shoring is installed,
deteriorated concrete is removed to expose corroded structural steel.
Problem:
Severe corrosion and loss of
load-bearing capacity of the structural support columns, girders and beams, and
floor.
Constraints:
Facility in continuous operation.
Solution:
Remove and replace or supplement all
deteriorated sections of structural concrete.
|
|
 |
MICRO-SILICA CONCRETE OVERLAY
Problem:
Parking facility leaks on vehicles and
stored materials. Poor drainage of upper level. Excessive corrosion of
reinforcing steel in beams and columns.
Constraints:
50% of facility to remain in operation
at all times.
Solution:
Repair all deteriorated concrete.
Supplement all defective reinforcing steel. Install new drain system. Install
a 1 1/2" to 3" thick high density micro-silica concrete overlay.
|
|
 |
CONCRETE TANK OVERLAY
A steel and fiber reinforced concrete base is being installed.
Problem:
Heavy deterioration of existing slabs
and walls of a waste sludge tank. Flat tank bottom not able to drain
effectively.
Solution:
Install a 3/4" thick reinforced
concrete wall liner at the lower 8 feet. Install a sloped 2 foot thick
reinforced concrete tank bottom.
|
|
 |
EPOXY INJECTION
Low pressure injection ports
are injected with epoxy resin.
Problem:
Prior to installation of a $250,000
printing press, a cracked floor slab had to be repaired so as to
avoid
misalignment and vibration of the machine.
Constraints:
Facility in operation during repairs.
Solution:
Epoxy injection of slab to
structurally adhere to floor slab together. |
|
 |
EPOXY INJECTION
Epoxy is injected into ports of deteriorating architectural facade system.
Problem:
Beautiful architectural art deco
facade system is deteriorating from freeze/thaw problems. Large pieces of
facade are falling onto main entrance of sidewalk.
Constraints:
Main entrance will be in active use
during repair procedures.
Solution:
Epoxy inject full depth of all cracks
to regain structural integrity. Recoat the entire facade to hide settlement
from cracking and impregnate with a granite coating system to match original
look.
|
|
 |
STRUCTURAL
ROTTED WOOD REPAIR
Eight inch steel channel section is bolted at 24" centers.
Problem:
Rotted wood beam supporting 20 feet of
brick is supported by cast iron columns.
Constraints:
Removal of wood beam would cause the
removal of 20 feet of 3 widths of brick.
Solution:
Epoxy consolidation of wood with 3
levels of epoxy consolidation. Rebuild the most severely rottedwood.
Install 8" steel channel for residual strength. |
|
  |
|
|
COLLAPSING BUILDING
STRENGTHENING
Exterior and interior view of
1892 building. 600+ pieces of structural/scaffold shoring to re-jack
building and provide temporary collapse prevention.
Problem:
High pressure steam leak in heating
system for over 30 hours cause structural failure to framing system.
Constraints:
1892 construction structural system is
now considered inadequate.
Solution:
Remove architectural elements within
the interior. Install new structural steel framing system within the
building's interior, keeping the architectural elements of the original
construction. Repair all steam damage to walls, flooring, pews, ceilings,
etc.
|
|
|
 |
LARGE
OPENING PROVIDED in LOAD BEARING WALL
Final adjustments are made
to placement of 3,200 lb. beam in extremely confined workspace.
Problem:
Owner needs to expand paper mill
machine though an existing wall area. Wall is 26 inches thick, 32 feet high, 28
feet wide.
Constraint:
Two paper machines will be running
during the entire operation. Machines are located 6 inches away from the wall
to be removed. Temperature at ceiling is 110 degrees Fahrenheit with 100
percent humidity. No debris is allowed to fall within the confines of the paper
making process.
Solution:
Install a series of loading bearing
peers, columns, beams and purlins outside of the wall area to permanently hold
the roof and walls while removing the original load-bearing wall.
|
|
 |
DETERIORATED CONCRETE
REMOVAL EXPOSING CORRODING REINFORCING STEEL
Problem:
Chloride containing concrete caused corrosion of
reinforcing steel at school building.
Constraints:
Because of high noise levels created during
repair, building can only be worked on after school hours.
Solution:
Chip at night, shore, patch with 6000 PSI
concrete. Elastomeric coat finished surface.
|
|
