FHWA Offers Tech Flyer on Air-Entraining Admixtures for Concrete
- Wednesday, 26 August 2020 09:40
One of the FHWA’s Mobile Concrete Technology Center’s (MCTC’s) recent technology transfer resource offerings covers air-entraining admixtures for concrete. This informative, one-page flyer describes what chemical air-entraining admixtures are and what they do. (Basically, they help form air bubbles that impart several important features of concrete).
The tech flyer describes why air is important to good quality concrete, what the difference is between air entrainment and encapsulation, and how air-entraining admixtures work. This information-packed document also describes the chemistry and classification of admixtures and the effect of materials and practices on air entrainment. There’s also a section that summarizes the specific ways the air-entrainment admixtures improve concrete durability.
Checklists and a table provide quick reference points and make the information even more accessible and easy to use. Whether you’re a seasoned concrete professional or relatively new to the business, this is a good resource for contractors, agency personnel, engineers, and others focus on placing durable concrete pavements. Click here to download a copy.
ACPA Reports Major Progress in Airport Pavement Research and Technology Plan
- Wednesday, 19 August 2020 15:00
Ongoing efforts between ACPA and the FAA on the Airport Pavement Technology Program (APTP), a cooperative research and technology program, are showing excellent signs of progress. That’s the word from Jerry Voigt, who described recent developments in ACPA’s “3 Minutes on Monday” video report on Monday.
We first reported on the APTP in January, and since then, ACPA has worked with Industry partners and the FAA to direct $3 million of applied research funding for the program in the 2020 Appropriations Bill. Work is ongoing to secure a second round of funding in the 2021 Appropriations Bill, Jerry says.
Jerry and Gary Mitchell have worked with the FAA to develop a scope of work and contract language for a cooperative agreement between the CP Tech Center and FAA.
“I am pleased to report that the language and scope of work has been approved by the FAA,” Jerry says, adding, “We made some special efforts and worked with the FAA to have the CP Tech Center serve as the APTP Program Manager.”
“Last week, with help from ACPA, the Center submitted a proposal and budget for the program management role. This is a final step in contract negotiations, and we anticipate the proposal being accepted soon.”
Once underway, a Program Coordination Group of industry representatives—ACPA contractors, manufacturers, suppliers, and consultants—will be formed to provide insights on priorities and to oversee the program. Click here to see the full report on this exciting development, along with other ACPA activities related to the airport pavement market.
ACPA Studies Pavement Resilience
- Wednesday, 19 August 2020 12:33
In support of our commitment to support agencies and other customers in considering pavements in disaster preparation and recovery strategies, ACPA is exploring the topic in depth.
Work has begun on the project, which involves the development of a strategy to use for outreach and communications on this important and timely topic. In addition to input from members, the research will involve evaluation of both technical and non-technical literature.
ACPA Participates in TRB’s Mid-Year Committee Meetings
- Wednesday, 19 August 2020 12:25
The Transportation Research Board (TRB) committees provide an opportunity for a unique cross-section of federal and state agencies, industry, academia, and consultants to help improve all transportation infrastructure.
Two committees—Concrete Pavement Design & Rehabilitation (AKP20, formerly AFD50) and Concrete Pavement Construction and Rehabilitation (AKC50, formerly AFH50) —held virtual meetings, respectively in July and earlier this month.
“These meetings provide an avenue for each committee to review research needs statements which help guide and inform future research topics,” says Eric Ferrebee. “The research topics cover many aspects of the design, construction, and rehabilitation of concrete pavements, as well as concrete overlays, precast concrete pavements, and roller-compacted concrete pavements. Fast-setting patching materials and their performance, as well as dowel performance, are among other current topics of interest.”
These meetings also allow members to brainstorm presentation and webinar topics for TRB and include an update on the review process of technical papers submitted for presentation and publication, he says. The meetings allow TRB to communicate plans for their upcoming virtual meeting in January of 2021.
ACPA Announces Association Courses for World of Concrete
- Tuesday, 18 August 2020 12:03
ACPA has agreed to present three industry training courses at World of Concrete 2021. The show is scheduled for January 18 through 22 in Las Vegas.
The ACPA courses, dates and times are:
- Constructing Smooth Concrete Pavements: Tips, Techniques & State of the Art Equipment, scheduled for Monday, January 18 from 1:00 pm to 4:30 pm. (Course code: ACPAMO.)
- Proper Joint Design, Construction & Sealing for Concrete Pavements, scheduled for Wednesday, January 20, from 9:00 am to noon. (Course code: ACPAWE.)
- Techniques to Repair/Preserve Concrete Pavements, scheduled for Thursday, January 21, from 9:00 am – to noon. (Course code: ACPATH.)
During a recent planning meeting, show organizers announced to ACPA and other show sponsors their plans to move forward with an in-person annual trade show. ACPA is making preliminary plans to participate in the show.
Even so, because of the number of industry events this year and early next year being shifted to virtual events, as well as questions about an in-person World of Concrete event in January, we are prepared to support a virtual version if plans change.