| Column and post pads
are poured on the existing floor. |
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| A precast concrete support system
consisting of posts, columns and beams
is set in place. |
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Interior view of precast concrete support
system for precast cover system. |
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A decant structure is cast-in-place
on the interior of the tank with
an overflow located at the top.
Four (4) levels of decant draw-off
are built into the structure to provide multiple levels for decanting. |
| Precast panels are set in place. |
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Each tank is field measured prior to fabrication.
Each precast panel is then built to very strict quality control standards so an almost perfect fit occurs when the panels are placed on the existing tank walls. |
| After placement and alignment of panels, a cement grout is placed to fill any void space between the panels.
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| Top joints are then raked to a depth of ½" and a self-leveling polyurethane joint sealant (Tremco THC-900) designed to resist moisture, abrasion and movement is placed on all top joints.
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