2014 Asphalt Today
Figure 2. APA specimens before loading
Figure 2. APA specimens after loading.
Figure 3. Indirect tensile strength texting for AASHTO T 283.
Figure 4. Laboratory scale asphalt binder foaming device.
Figure 7. The University of Akron workability device.
Taking care of aggregate one of the keys to WMA foam
VDOT’s modified EP-5 epoxy overlay waterproof membrane was placed on the travel and passing lanes of the SBL bridge on I-85.
Thermoplastic polymer-modified asphalt overlays work in Va.
In all, 232,000 tons of asphalt base and surface mixes were paved and compacted along the 6.2-mile stretch of Kentucky’s Highway 60.
Antigo Construction Inc. fractured the 10-in.-thick concrete pavement prior to receiving the overlay to minimize the occurrence of reflective cracking.
Crews execute extensive asphalt-paving work on Hwy. 60 in Kentucky
If you speed up the drum and have the proper flights in the drum, you prevent the aggregate from dropping prematurely. This creates a better aggregate veil, which allows it to be heated better by the dryer. The technique translates directly to the roadway.
“Everything looks good,” said Starling. “That was one of the easier FC-2 jobs I’ve been on. Once they started running, they never had any problems with the mix.”
Contractor tends to dangerous sections of N.C. road
The objective of this study was to evaluate how increasing the volume of virgin binder, using a softer grade of virgin binder or using a WMA chemical additive affected the durability and performance of RAP mixtures.
Latest NCAT research supports increase in RAP content