2. RESEARCH
When searching for pavement texture
What is the public/owners looking for?
Black and beautiful?
White reflective topping?
Smooth?
Let’s ask Google
15. WHY THEN DOES ANYONE SELECT ASPHALT
CONCRETE?
Appearance?
Apparently not
Smooth ride?
How is that applicable to parking lots?
Constructability?
Cost?
We therefore base our lively hood on being
cheap?
16. WHY DO OWNERS LOOK AT THEIR PAVEMENTS?
Pavement performance is consistent with
expectations
Proactive pavement owners
Cities and Counties
State
Airports
Seaports
Commercial property owners
Image driven
Performance/budget driven -
17. WHY DO OWNERS LOOK AT THEIR PAVEMENTS?
Pavement performance is not consistent with
expectations
Government agencies
Commercial property owners/managers
Small property owners
Home owner associations
Attorneys
18. WHY DO OWNERS LOOK AT THEIR PAVEMENTS?
Pavement appearance is suspect
Attorneys
Attorneys
Attorneys
Attorneys
23. WHAT DOES NOT DIRECTLY DEFINE
APPEARANCE?
Stability
Voids in Mineral Aggregate
Retained Strength
Air Voids
Voids Filled with Bitumen
Binder Content *
Relative Compaction *
25. SO, WHAT IS THE TEXTURE?
What is the texture of asphalt concrete?
Open graded
Dense graded
Exposed aggregate
Rock salt finish
Smooth trowel
Rough broom
Why don’t we ever speak of the texture?
45. IMPACT ON APPEARANCE
Quality control is based on extracted
gradations
Extractions expose the ‘centers’
Visual perceptions is based on as received
gradations
Visual as received conditions remained coated
It is nice to fool mother nature
Understand the variables
Take advantage of the opportunities
46. WHAT DO WE NEED TO DO?
Accept recycle is here to stay
Recycling has included
Glass
Ceramics
Auto wrecking yard waste
47. WHAT DO WE NEED TO DO?
Recycling now includes
Rubber tires
Tire rubber
Roofing material
Manufacturer ‘tear offs’
Old roofs
Simple shingles
Built up roofs
48. WHAT DO WE NEED TO DO?
Crushed Portland cement concrete
Crushed asphalt concrete
Playgrounds
Parking lots
Local roadways
Highways
Airports
Seaports
49. WHAT DO WE NEED TO DO?
Order surface materials from single source
Single supplier
Single plant
Understand implications of recycled materials
Finish appearances are impacted
10% is different than 15% is different than 20%, etc, etc
Select materials with defined and specified
gradations
What is ½” fine with 20% or more recycled
materials?
50. WHAT DO WE NEED TO DO?
Train our people to handle materials properly
Avoid segregation for general paving
Limit use of paver wings
Match auger and screed widths
Proper joint raking
Use aggregate segregation to your advantage
Purposely segregate materials in hand work areas
Use aggregate segregation to our advantage
Discard course materials in hand work areas
51. WHAT DO WE NEED TO DO?
Raise our understanding
Raise our skills
Change the perception of our product
Change the perception of our industry
RAISE THE PERFORMANCE BAR