Jea july 2010_w_brushed_concrete_background-2[1]
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JEA Demo SewperCoat
Manhole Rehabilitation
July 2010
Chaz Environmental Services, Inc.
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Why SewperCoat?
• Rehabilitate existing infrastructure damaged by abrasion and or biogenic corrosion
• Looking for a structural fix or enhancement
• In need of a product that infiltration will not “get behind”
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Why SewperCoat?• Desire to protect the structure with a product
with a world wide 70+ year track record
• Added security of a 10 yr warranty
Before After
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JEA DEMO Manhole
Effects of biogenic corrosion and infiltration Missing bench and invert
infiltrationCorrosion Missing bench
Missing invert
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SewperCoat Process
• We clean the structures
• We patch walls/stop leaks
• We’ll rebuild bench/invert
• We work with flow or pump around/divert
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JEA Manhole
Cleaned and repaired manhole prior to
application of rust Inhibitor on exposed
rusted metal
Same area after rust inhibitor was applied
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SewperCoat Process
• We low pressure spray apply SewperCoat PG (pumpable grade), a pre-packaged ready to use high strength wet shotcrete material composed entirely of calcium aluminates
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SewperCoat Process
• Once the desired thickness is spray applied (1/2” to 4” depending upon needs of individual structures), we hand trowel the surface
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SewperCoat Process
• Then we brush the entire interior- walls, chimney and bench
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JEA DEMO Manhole finished