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Terms in this set (44)
Gmb Specific gravity of compacted specimen or pavement core, including air voids
Gmm Theoretical maximum specific gravity or "RICE" specific gravity of Asphalt-coated
aggregated or "specific gravity of mix at zero air voids"
Water batch temperature must be at 77 (plus or minus)2 degrees
Mechanical Foaming Temperature can't be less than 260 degrees
Pub 351 Asphalt Tech Certification Program
, PG-58S-28 215-310 Degrees (COLD)
PG-64S-22 220-320 Degrees (Non-Heavy)
PG-64E-22 240-330 Degrees (Heavy)
Rutting Reduced with the proper BINDER grade and Asphalt content.
May have been caused by allowing traffic on a map that was too hot.
Need for a scratch course, leveling, or milling
Scratch Course: used to fill wheel ruts & other local small depressions
Leveling Course: used to provide a relatively uniform level platform for placing
binder or wearing course.
Module 4 page 42
ESAL Calculations are NOT linear and cars DO NOT count. 18,000 lbs
Mix Designs Do not place when surface is wet or temperature is 35 Degrees or below.
(Base Course,
Full Depth Reclamation (FDR) Existing roadway materials
Stabilized additives
Imported aggregate or RAP
TR-447 Sampling
Sampling NO sampling needed for quantities less than 500
Paving Seasons Extended paving season is from April 1 to November 15
Paving season is from April 1 to October 31
Density Cores Tested using PTM 715 and PTM 716
Cores are to be taken within 1 DAY (24hrs) of placement
Joints Offset joints by 6 inches
Overband all joints with Binder-(4+-1)
9.5mm Wearing Course Minimum depth is 1 inch
6.3mm placement must be greater than 50 degrees outside and surface
Stone Matrix Asphalt PG-64E-22- 240 to 330 Degrees
Prohibited when weather is ≤50 degrees or wet surfaces
93%-98% for 100% payment
NO TACK between layers
-9.5 or -19mm mixes
>50 degrees
Allows infiltration
Do not over compact
Cool to 100 degrees between each layer
4 passes with static drum
N
E
C
E
P
T
A
s
p
h
a
lt
Students
also
studied
Terms in this set (44)
Gmb Specific gravity of compacted specimen or pavement core, including air voids
Gmm Theoretical maximum specific gravity or "RICE" specific gravity of Asphalt-coated
aggregated or "specific gravity of mix at zero air voids"
Water batch temperature must be at 77 (plus or minus)2 degrees
Mechanical Foaming Temperature can't be less than 260 degrees
Pub 351 Asphalt Tech Certification Program
, PG-58S-28 215-310 Degrees (COLD)
PG-64S-22 220-320 Degrees (Non-Heavy)
PG-64E-22 240-330 Degrees (Heavy)
Rutting Reduced with the proper BINDER grade and Asphalt content.
May have been caused by allowing traffic on a map that was too hot.
Need for a scratch course, leveling, or milling
Scratch Course: used to fill wheel ruts & other local small depressions
Leveling Course: used to provide a relatively uniform level platform for placing
binder or wearing course.
Module 4 page 42
ESAL Calculations are NOT linear and cars DO NOT count. 18,000 lbs
Mix Designs Do not place when surface is wet or temperature is 35 Degrees or below.
(Base Course,
Full Depth Reclamation (FDR) Existing roadway materials
Stabilized additives
Imported aggregate or RAP
TR-447 Sampling
Sampling NO sampling needed for quantities less than 500
Paving Seasons Extended paving season is from April 1 to November 15
Paving season is from April 1 to October 31
Density Cores Tested using PTM 715 and PTM 716
Cores are to be taken within 1 DAY (24hrs) of placement
Joints Offset joints by 6 inches
Overband all joints with Binder-(4+-1)
9.5mm Wearing Course Minimum depth is 1 inch
6.3mm placement must be greater than 50 degrees outside and surface
Stone Matrix Asphalt PG-64E-22- 240 to 330 Degrees
Prohibited when weather is ≤50 degrees or wet surfaces
93%-98% for 100% payment
NO TACK between layers
-9.5 or -19mm mixes
>50 degrees
Allows infiltration
Do not over compact
Cool to 100 degrees between each layer
4 passes with static drum
