novachip applications in wyoming

NOVACHIP APPLICATIONS IN WYOMING

VICKI BONDSWYDOT

Sunday, March 28, 2010

FIRST PROJECT LOCATION

Laramie

Cheyenne


TELEPHONE CANYON GOALS

IMPROVE FRICTION– POLISHED CONCRETE

PRESERVE EXISTING– 1997 RECONSTRUCTION


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


PROJECT DESCRIPTION

EVALUATED THE CONCRETE PAVEMENT– “POLISHING”

• LIMESTONE AGGREGATE• FRICTION LOSS

– FAIRLY STEEP GRADE (5.2%)– MULTIPLE HORIZONTAL CURVES– SAFETY CONCERNS


2006 CONDITION


EVALUATED OPTIONS


EVALUATED OPTIONS

“QUICK FIX”– SHOTBLASTING– GRINDING– REDUCE SPEED (75 mph to 65 mph)


EVALUATED OPTIONS


SHORT-TERM– MULTIPLE APPLICATIONS


EVALUATED OPTIONS


SHORT-TERM– MULTIPLE APPLICATIONS

LONG-TERM– RECONSTRUCTION


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


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)


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


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!


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.


HPWC RECOMMENDED AGGREGATE PROPERTIES


TELEPHONE CANYON HPWC AGGREGATE PROPERTIES


HPWC MIX DESIGN

Mix Design provided by SemMaterials

Future projects, mix design will be completed by WYDOT Materials Program


TELEPHONE CANYON CONSTRUCTION SUMMARY


TELEPHONE CANYON CONSTRUCTION SUMMARY M.P. 318.95 TO 321.0 WBL


TELEPHONE CANYON CONSTRUCTION SUMMARY M.P. 318.95 TO 321.0 WBL JULY 27, 2007, Preconstruction Meeting


TELEPHONE CANYON CONSTRUCTION SUMMARY M.P. 318.95 TO 321.0 WBL JULY 27, 2007, Preconstruction Meeting AUGUST 20, 2007, Paving Starts


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


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


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


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


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.


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.)


SEMMATERIALS BOND TEST

– Would it stick to polished concrete?

Bond Test9 Freeze Thaw Cycles11.8 psi Peak


WYDOT BOND TEST


TELEPHONE CANYON CONSTRUCTION

The Integrated Distributor-Paver

Place HPWC:At 300 to 325ºFWithin 5 seconds after emulsion



A FEW START-UP GLITCHES...Sunday, March 28, 2010


Apply heat and hammer.



Now the tack is good, but the rollers….Sunday, March 28, 2010


A stern look and...Sunday, March 28, 2010

HDSRI (HIGH DENSITY STRESS RELIEF INTERLAYER)TEST SECTION


65 mils used(135 mils)



HDSRI (HIGH DENSITY STRESS RELIEF INTERLAYER)TEST SECTION


TELEPHONE CANYON

PERFORMANCE

2008

2009


TELEPHONE CANYON PERFORMANCE

2007

2009


TELEPHONE CANYON PERFORMANCE

2007

2008


TELEPHONE CANYON PERFORMANCE (HDSRI)

2008

2009


TELEPHONE CANYON PERFORMANCE (HDSRI)


RECOMMENDATIONS

Sound Structure Surface Preparation is Important Discontinue HDSRI Joints? Not Leveling Provides Friction Repairs Done First


2009 STIMULUS PROJECTS (2)

TELEPHONE CANYON (PHASE II) 12,350 TONS HPWC 8.18 MILES POLISHED CONCRETE

– FRICTION LOSS CONCERN: POLISHED, GRADE


2009 STIMULUS PROJECTS (2) GREEN RIVER -

ROCK SPRINGS 17,750 TONS HPWC 14.5 MILES CONCRETE FRICTION (48 AVG.) CONCERN: ICE,

WATER SPRAY


QUESTIONS?

CALL DAN QUIRE


novachip applications in wyoming

Documents