Thursday, 26 January 2012 15:19
When Caltrans needed an emergency asphalt paving repair on I-5 in January in Redding, they called on Tullis. Tullis called Telfer Oil Company for some Evotherm Warm Mix Asphalt (WMA) additive to make the project successful and the rest is history.
On the nights of January 12-13, 2012 Tullis Inc. paved I-5 going northbound through Redding with just over 3300 tons of Warm Mix Asphalt using Meadwestvaco’s Evotherm as a placement and workability aid. Conventional mix wasn’t an option due to the 35°F air temps and 40°F pavement temps. Caltrans wanted the assurance of success under adverse conditions and asked for Evotherm.
The mix was a gap graded PG 64-28PM with 15% RAP produced by Northstate Asphalt (a Tullis Company). Telfer Oil Company was supplied the Evotherm® product and equipment to Northstate. Evotherm is easily metered and injected into the asphalt line at the hot plant using a skid mounted controller unit.
One of the challenges on this job was the short time frame from notice of job to start of the repair work. Tullis and Telfer found out about the job on Friday January 6th about 3:00 PM. By Monday, the Evotherm equipment and material was on site and by Tuesday it had been approved by Caltrans as meeting all the necessary MPQP requirements. Milling commenced Tuesday night and paving started Thursday.
The mix was produced between 285°F - 295°F. Temperatures behind the screed and during rolling were as low 220°F with completion being achieved by 190°F. Evotherm provides the mix with the ability to be paved in cooler temperatures with greater workability.
On the jobsite it was noted that by using WMA nothing had changed in paving practice except for the fact that Tullis was able to pave in conditions that normally would have been considered unacceptable by the State. Caltrans and Tullis are very happy with the final product.
Caltrans recently approved a change order by MCK Construction on a night project in Napa County to use TruPave in lieu of an asphlat rubber chip seal. Trupave falls under the category "Paving Mat" in Section 88-1.02K of the 2010 Caltrans Standard Specifications. Although admittedly the newer of the two materials considered for this project, Trupave has been performing in CA since 2001 and delivers superior tensile strength and reflective crack benefits along with recyclability and millability.
Trupave is installed by the Telfer Companies as well as other trained installers throughout CA. For more information on Trupave click here.
California Paving Fabrics (CPF), a Telfer Company, is now offering QSP services. Aubrey Santillan, a long time employee, has completed the 24 hour Caltrans SWPPP training course along with the QSP (Qualified SWPPP Practitioner) certification and the CESSWI (Certified Erosion, Sediment and Stormwater Inspector) program. In addition Aubrey has been working with erosion and stormwater materials and devices for many years.
Beginning September 2nd the requirements for the programs above have changed and CPF is here to help you keep up with the changes. Whether you need to have your stormwater BMPs (Best Management Practices) reviewed or you need to have your water quality tested, CPF is available to handle your needs.
For quotes or information on these services, please contact Aubrey at 800-443-6322 or at This e-mail address is being protected from spambots. You need JavaScript enabled to view it
