|FHWA > HfL > Projects > California Demonstration Project: Pavement Replacement Using a Precast Concrete Pavement System on I-15 in Ontario > Technology Transfer|
California Demonstration Project: Pavement Replacement Using a Precast Concrete Pavement System
Two technology transfer events were organized in connection with the I-15 rehabilitation project to promote the innovative technologies used on the project. The first was a July 21–23, 2008, workshop on RSAs held before the start of construction and the second was a PCPS showcase during slab replacement activities held June 22–23, 2010.
The workshop included a technical workshop on RSA concepts in a lecture format as well as a practical RSA exercise on a real-world project. The course, conducted on the Caltrans District 8 premises, was attended primarily by Caltrans staff with interest in safety aspects of projects during the design or construction stage or roadways in service. Several individuals working on the I-15 project participated in the event.
The goals of the workshop were to explain the RSA process and how it can make roadways safer and to enable participants to apply their knowledge and skills through a practice RSA on the I-15 project. Craig Allred of the FHWA Resource Center conducted the workshop. Allred and Margaret Gibbs of Opus Hamilton in Canada oversaw the RSA exercise on the I-15 project. Gibbs prepared the final report summarizing the RSA team’s findings.The lecture phase of the workshop accomplished the following:
During the second phase of the workshop, an RSA team of workshop participants was assembled that included individuals not closely involved in the design phase of the project. The careful selection of RSA team members was primarily to exclude biased inputs.
The RSA recommendations are summarized in table 7 of this report. Also listed are Caltrans responses to the recommendations, including why some were not implemented.
The second technology transfer activity organized during this project was a showcase on PCPS technology, which included a workshop, a tour of the precast facility, and a site visit to observe actual slab installations. The showcase was conducted over two days. The event was given a great deal of publicity (see announcement in figure 26) and attracted participants from all over the country.
The program opened with a welcome address by Dr. Ray Wolfe, Caltrans District 8 director, and included the following presentations:
Next, after a jobsite safety briefing, the participants observed the installation of PCPS slabs on the I-15 site during the nighttime work windows.
The next morning, the participants visited the precast plant to observe the casting process. The participants viewed the formwork, the placement of reinforcement steel and concrete, the finishing, and the curing process. They also looked at the stockpiling of the finished slabs ready for trucking to the site. The participants returned to a lecture and discussion setting for the following presentations:
The session ended with a panel discussion involving all participants.
Figure 26. Project showcase event announcement and invitation.
Figure 27. Presenters at the HfL showcase.
Figure 28. Participants in the workshop conducted as part of the HfL showcase.
Figure 29. Site visits during the HfL showcase included I-15 PCPS installation site (top) and precast plant (bottom).