Understanding our Competition - Part B Metal Pipe www.concrete-pipe.org
Agenda Rigid vs. Flexible Recap ASTM’s for Flexible Metals Flexible Metal Overview Specific Flexible Metal Products Ultra Flow Smooth Cor Plans, Specifications & the Contract Consulting Engineer Visits Real World Scenarios/Examples www.concrete-pipe.org
ASTM’s for Flexible Metals ASTM A760 – Steel (Ultra Flo) ASTM A761 – Structural Plate Field Bolted ASTM A762 – Polymer Coated Steel
Flexible Metals Overview ASTM A760 & A762 (Polymer Coated) Resistivity greater than 1500 ohm-cm pH between 5.0 and 9.0 Soil information is vital when installing Metal Pipe Aluminized claim of 75 to 100 year life depending on the Gauge (thickness) Aluminized has only been installed since the 1980’s Very little known failures since most installations are not that old Flotation Considerations (ACPA) Post Installation Inspection Requirements if any www.concrete-pipe.org
Flexible Metals Overview Design Life is dependent on Abrasion Four levels of Abrasion Level 1 – Non-Abrasion Level 2 – Low Abrasion (less than 5 ft/sec) Level 3 – Moderate Abrasion (5 to 15 ft/sec) Level 4 – Severe Abrasion (over 15 ft/sec) Velocities based on 2-year storm event www.concrete-pipe.org
Flexible Metals Overview Supplemental Paving & Coatings Claim added Service Life Coatings/Paving Add On Asphalt Coated Asphalt Lined and Paved Polymerized Asphalt Inverted Coated Polymer Coated and Paved Polymer Coated with Polymerized Asphalt Invert Coated High Strength Concrete Lined Concrete Paved Coatings are not commonly used www.concrete-pipe.org
Existing Soil Parameters Flexible Metals Overview Existing Soil Parameters Is metal being backfilled with Native Material? If so what minimum standards does the native material meet? Is native soil being tested to see what pH & resistivity are? www.concrete-pipe.org
Flotation Flexible Metals Overview Metal Pipe Floats too In wet areas or where the existing water table is high, metal pipes will float Know what your state/municipality requires for flotation precautions Manufacturer recommends anchors to prevent floatation if needed www.concrete-pipe.org
Summary Flexible Metals Overview Many designers who do privately funded civil/site work hang their hat on State DOT Standard Drawings and Specifications It is your job to know the State DOT requirements better than the Designers Create a cheat sheet for metal products on what your State DOT requires If the municipality the project is in does not have standards or specifications, the designer will typically provide the standards and specifications www.concrete-pipe.org
Specific Flexible Metal Products www.concrete-pipe.org
Ultra Flo Almost Smooth Interior Fill Heights Vary from 68 ft to 81 ft depending on Gauge www.concrete-pipe.org
SmoothCor Smooth Interior www.concrete-pipe.org
Natchez Trace www.concrete-pipe.org
Natchez Trace www.concrete-pipe.org
Natchez Trace www.concrete-pipe.org
Natchez Trace www.concrete-pipe.org
Natchez Trace www.concrete-pipe.org
Natchez Trace www.concrete-pipe.org
Natchez Trace www.concrete-pipe.org
Natchez Trace Lining 72 Inch CMP $850/LF for 200 LF Lining Cost $170,000 Replace section of 72 Inch CMP $356.25/LF for 40 LF Replacement Cost $14,250 Total Replacement Cost $184,250 or $921.25/LF Pipe Size Decreased from 72 inch CMP to 54 inch PVC www.concrete-pipe.org
Natchez Trace www.concrete-pipe.org
Plans, Specifications & the Contract Do you typically quote on plans alone? Do you typically quote on plans & specifications? Or do you typically quote on plans, specs & contract? Need to look at all three to know what you are bidding against If metal is allowed, what is the existing soil parameters? Was Geotech Study done for metal? If no Geotech what are designer’s assumptions? www.concrete-pipe.org
Consulting Engineers Visits Create a HIT LIST of Design Consultants Start with the ones closest to you that specify the most competitive products Make time either biweekly or monthly to block out time to visit design consultants If you have a TRE use them! If you do not have a TRE use your ACPA representative It starts with Designers and there are as many of them as there are Contractors Always take engineering pads, smaller ones are preferred & Donuts or Biscuits www.concrete-pipe.org
Success Stories Any examples of what has worked or what has not worked in your particular market? www.concrete-pipe.org
Real World Examples Please provide a few recent examples that you have come across while bidding work in your particular market www.concrete-pipe.org
Bucket of Confusion with Different Flexible Plastic Products What Bucket is your competition in? The ONLY other BUCKET – The Flexible bucket!!!!! If it’s not RCP its FLEXIBLE!!!
Questions www.concrete-pipe.org