Download - NOVACHIP APPLICATIONS IN WYOMING
TELEPHONE CANYON GOALS
IMPROVE FRICTION– POLISHED CONCRETE
PRESERVE EXISTING– 1997 RECONSTRUCTION
Sunday, March 28, 2010
TELEPHONE CANYON1996 CONDITION
Friction Loss – Acceptable in 1996
Surfacing Section 2 Lanes WBL
– 3 Lanes EBL (future project)– 11 inches Concrete Pavement
• dowel jointed • Limestone Quarry
– 4 inches Crushed Base Current Traffic:
– 7,200 vehicles per day– 6,220 kip ESAL’s
Sunday, March 28, 2010
PROJECT DESCRIPTION
EVALUATED THE CONCRETE PAVEMENT– “POLISHING”
• LIMESTONE AGGREGATE• FRICTION LOSS
– FAIRLY STEEP GRADE (5.2%)– MULTIPLE HORIZONTAL CURVES– SAFETY CONCERNS
Sunday, March 28, 2010
EVALUATED OPTIONS
“QUICK FIX”– SHOTBLASTING– GRINDING– REDUCE SPEED (75 mph to 65 mph)
Sunday, March 28, 2010
EVALUATED OPTIONS
“QUICK FIX”– SHOTBLASTING– GRINDING– REDUCE SPEED (75 mph to 65 mph)
SHORT-TERM– MULTIPLE APPLICATIONS
Sunday, March 28, 2010
EVALUATED OPTIONS
“QUICK FIX”– SHOTBLASTING– GRINDING– REDUCE SPEED (75 mph to 65 mph)
SHORT-TERM– MULTIPLE APPLICATIONS
LONG-TERM– RECONSTRUCTION
Sunday, March 28, 2010
QUICK-FIX OPTIONS
SHOTBLASTING– 2004 (M.P. 320.1 TO M.P. 321.1)– 2005 (2004: M.P. 318.95 TO M.P. 324.1)– EXPECTED TO LAST THROUGH WINTER
MONTHS– LASTED A FEW MONTHS,
• AREAS LASTED ONLY A FEW WEEKS– 2006 REDUCE SPEED LIMIT
GRINDING - EXPECTED SIMILAR LIFE
Sunday, March 28, 2010
LONG-TERM OPTIONS
CONCRETE RECONSTRUCTION– Non-Polishing Aggregate!– Highest Cost– Remaining Life (20 years +)
ASPHALT OVERLAY / WHITETOPPING – Non-Polishing Aggregate!– High Cost– Structural Overlay Not Warranted– Geometric Concerns (Grading)
Sunday, March 28, 2010
SHORT-TERM OPTIONS
MICROSURFACING CHIP SEAL HIGH PERFORMANCE WEARING COURSE (HPWC)
AKA NOVACHIP OPEN-GRADED FRICTION COURSE
– Traditional 3/4 inch Plant Mix Wearing Course (PMWC)
– 3/4 inch Crumb-Rubber Modified PMWC
Sunday, March 28, 2010
CONSIDERATIONS
SHORT-TERM OPTIONS– What Will Stick?
• Initial & Long-Term– Harsh Environment– Seasonal, Aggressive Snowplow Activity– Grade– Heavy Truck Traffic, Braking – Cost– Non-Polishing Aggregate!
Sunday, March 28, 2010
HIGH PERFORMANCE WEARING COURSE (HPWC)
Benefits of a OGFC along with polymer modified, low viscosity emulsion tack coat placed with integrated spray-paver - to make it stick.
Sunday, March 28, 2010
HPWC MIX DESIGN
Mix Design provided by SemMaterials
Future projects, mix design will be completed by WYDOT Materials Program
Sunday, March 28, 2010
TELEPHONE CANYON CONSTRUCTION SUMMARY M.P. 318.95 TO 321.0 WBL JULY 27, 2007, Preconstruction Meeting
Sunday, March 28, 2010
TELEPHONE CANYON CONSTRUCTION SUMMARY M.P. 318.95 TO 321.0 WBL JULY 27, 2007, Preconstruction Meeting AUGUST 20, 2007, Paving Starts
Sunday, March 28, 2010
TELEPHONE CANYON CONSTRUCTION SUMMARY M.P. 318.95 TO 321.0 WBL JULY 27, 2007, Preconstruction Meeting AUGUST 20, 2007, Paving Starts 1.3 miles Paved per Day
Sunday, March 28, 2010
TELEPHONE CANYON CONSTRUCTION SUMMARY M.P. 318.95 TO 321.0 WBL JULY 27, 2007, Preconstruction Meeting AUGUST 20, 2007, Paving Starts 1.3 miles Paved per Day 3 Ribbons
Sunday, March 28, 2010
TELEPHONE CANYON CONSTRUCTION SUMMARY M.P. 318.95 TO 321.0 WBL JULY 27, 2007, Preconstruction Meeting AUGUST 20, 2007, Paving Starts 1.3 miles Paved per Day 3 Ribbons Approximately 5 Days
Sunday, March 28, 2010
TELEPHONE CANYON CONSTRUCTION SUMMARY M.P. 318.95 TO 321.0 WBL JULY 27, 2007, Preconstruction Meeting AUGUST 20, 2007, Paving Starts 1.3 miles Paved per Day 3 Ribbons Approximately 5 Days 1 inch Depth
Sunday, March 28, 2010
TELEPHONE CANYON CONSTRUCTION SUMMARY M.P. 318.95 TO 321.0 WBL JULY 27, 2007, Preconstruction Meeting AUGUST 20, 2007, Paving Starts 1.3 miles Paved per Day 3 Ribbons Approximately 5 Days 1 inch Depth Surface Prep included brooming, cleaning,
joint preparation, etc.
Sunday, March 28, 2010
TELEPHONE CANYON CONSTRUCTION SUMMARY
$690,000 Project Cost $18,000 Aggregate Cost
Mobilization (paver from New York)
Traffic Control (three ribbons, barrier, trucks, visitors, etc.)
Sunday, March 28, 2010
SEMMATERIALS BOND TEST
– Would it stick to polished concrete?
Bond Test9 Freeze Thaw Cycles11.8 psi Peak
Sunday, March 28, 2010
TELEPHONE CANYON CONSTRUCTION
The Integrated Distributor-Paver
Place HPWC:At 300 to 325ºFWithin 5 seconds after emulsion
Sunday, March 28, 2010
HDSRI (HIGH DENSITY STRESS RELIEF INTERLAYER)TEST SECTION
TELEPHONE CANYON CONSTRUCTION
65 mils used(135 mils)
Sunday, March 28, 2010
TELEPHONE CANYON CONSTRUCTION
HDSRI (HIGH DENSITY STRESS RELIEF INTERLAYER)TEST SECTION
Sunday, March 28, 2010
TELEPHONE CANYON CONSTRUCTION
HDSRI (HIGH DENSITY STRESS RELIEF INTERLAYER)TEST SECTION
Sunday, March 28, 2010
RECOMMENDATIONS
Sound Structure Surface Preparation is Important Discontinue HDSRI Joints? Not Leveling Provides Friction Repairs Done First
Sunday, March 28, 2010
2009 STIMULUS PROJECTS (2)
TELEPHONE CANYON (PHASE II) 12,350 TONS HPWC 8.18 MILES POLISHED CONCRETE
– FRICTION LOSS CONCERN: POLISHED, GRADE
Sunday, March 28, 2010
2009 STIMULUS PROJECTS (2) GREEN RIVER -
ROCK SPRINGS 17,750 TONS HPWC 14.5 MILES CONCRETE FRICTION (48 AVG.) CONCERN: ICE,
WATER SPRAY
Sunday, March 28, 2010