Category

Asphalt

Adding ACE Fiber

CASE STUDY: Louisville Adds ACE XP to Overlay to Extend the Life of a City Street

By | ACE XP, Asphalt, Case Studies | No Comments

ACE Fiber to Overlay to Extend the Life of a City StreetWhen the City of Louisville in Kentucky wanted to extend the life and delay the maintenance cycle of a resurfacing project on West Broadway downtown, they protected their investment by adding ACE XP to the mix.

Current and historic research and case studies show that ACE XP significantly enhances asphalt concrete performance. A 140% increase in crack resistance and 60% rut resistance have been demonstrated.

“By adding ACE XP to the 1.5-inch overlay, Louisville Metro can expect it to last longer and need maintenance less often. Like all of our clients, they want to save time and money that they devote to roads,” said Jeff McConahy, regional account manager for Site Supply, the ACE XP distributor in Kentucky and Ohio.

Adding ACE FiberMcConahy worked on the project with the paving contractor Flynn Brothers Contracting and CBC Engineering, whose technicians added the fibers to the asphalt.

Louisville Metro will continue to monitor the improved performance of the road. Producing and installing the ACE XP Polymer Fiber reinforced asphalt went very well with no issues or changes to typical procedures.

“Mixing at Flynn Brother’s plant and paving with the fibers on West Broadway was a great experience for everyone,” said McConahy.

AAPT Annual Meeting a good forum for emerging asphalt technologies

By | Asphalt | No Comments

Surface Tech’s asphalt advisor Phil Blankenship to take the President’s role in 2020

Phil BlankenshipFor more than 90 years, the worldwide membership of the Association of Asphalt Paving Technologies has provided a centralized forum for disseminating the latest developments in asphalt paving technology. The organization’s recent annual meeting provided an excellent opportunity for Joe Dennis, Surface Tech’s chief technology officer, and Phil Blankenship, P.E., asphalt advisor to Surface Tech, to explain in depth how ACE XP Polymer Fiber differs from other non-polymer fibers.

“As we all know, no good idea sits idle, and that was largely the response we saw as many of the professionals in attendance gained a better understanding of the capabilities of ACE XP,” said Dennis. “Once the differences are clear, we saw the interest in ACE XP rise dramatically.”

A stellar line-up of presentations on a variety of research projects and material advances filled the three-day event, along with plenty of opportunities to network. Presentations included a wide range of topics, including the impacts of climate change on asphalt, 3-D paving, advances in stress testing, numerical modeling and much more.

“The AAPT Annual Meeting was well attended by a large number of highly educated professionals in our industry,” said Blankenship, who will take on the role of the organization’s president in 2020. “I expect the AAPT to continue to be a significant source of information and technological advancements well into the future.”

To view YouTube videos of the various presentations, visit https://www.youtube.com/channel/UCjWgLqZUstRB_G_zl9gLqLw

IDEAL-CT & Hamburg Wheel Tracker meet the need for crack/rut balanced performance testing in asphalt mixes

By | Asphalt | No Comments

ACE XP shows 30% to 50% improvements in both tests

 Indirect Tensile Cracking Test at Intermediate Temperature (IDEAL-CT)

Figure 1. Indirect Tensile Cracking Test at Intermediate Temperature (IDEAL-CT)

Asphalt pavements need to be stiff enough to minimize rutting, but resilient enough to bend without breaking to prevent cracking. The trend over the last 20 years has been one-sided — fixing the ruts at the expense of the cracks. Many in the industry have begun to recognize the need for a “balanced approach” to developing pavement designs that will perform well in resisting both rutting and cracking.

There are seven key existing performance or index tests for asphalt cracking (see Table 1). These tests vary in complexity and cost, and as a result, the asphalt industry has not traditionally performed cracking performance tests on every project.

Hamburg Wheel Tracker (HWT) Test

Figure 2. Hamburg Wheel Tracker (HWT) Test

For rut testing, the Hamburg Wheel Tracker (HWT) test tends to be the most widely used method. However, many agencies and specifiers, including DOTs, are moving toward adopting performance-based specifications where both mix designs and daily production will need to meet certain minimums in both cracking and rutting parameters in order to be considered.

A new and promising cracking test has recently been developed by Dr. Fujie Zhou and his colleagues at the Texas A&M Transportation Institute. The Indirect Tensile Cracking Test at Intermediate Temperature (IDEAL-CT) is a reduced cost method that provides consistent results to predict field performance in cracking. This test, along with HWT, can be used daily to ensure that asphalt mixes meet both rutting and cracking performance criteria in a balanced manner.

For example, tests utilizing the HWT and IDEAL-CT methods on ACE XP asphalt mixes can be seen in Figures 1 & 2. The results compare mixes with and without ACE XP and show clear performance advantages with ACE XP in both rutting and cracking sample results.

Bottom line: In balanced performance testing, ACE XP Polymer Fiber yields an improvement of 30% to 50% in both rutting and cracking performance. To learn more about ACE XP or how to achieve a balanced approach to testing using the IDEAL-CT method, contact us.

Asphalt crack testing

Fig. 1 - Hamburg Wheel Tracker (HWT) Test Example:

Fig. 1 – Hamburg Wheel Tracker (HWT) Test Example

 

IDEAL-CT Crack Test

Fig. 2 – IDEAL-CT Crack Test Example:

94th Annual AAPT Annual Meeting — we’ll see you there!

By | Asphalt | No Comments

AAPT Annual MeetingThe AAPT annual meeting is just a few weeks away, and our Chef Technical Officer Joe Dennis will be on hand to share the latest updates on ACE XP Polymer Fiber —a product that can make asphalt stronger than steel. The schedule includes several technical presentations on asphalt binders, strength testing techniques and mix designs, plus some social opportunities.

We especially encourage everyone to attend the Leading Edge Workshop on Monday, March 4, at 9:45 a.m. Phil Blankenship, P.E., a leader in the asphalt industry, will preside over the session of Automation in the Paving Industry. This session features two cutting-edge topics of: 3-D Paving: Advances and Limitations and Automation in Testing from the Lab to the Field.  This session will be livestreamed on Youtube.

The line-up of presentations looks both comprehensive and potentially groundbreaking. Check it out here, and plan to join us as we convene in Fort Worth March 3 through 6. To plan a meet-up, contact us.

Surface Tech at WOA — connect with us!

By | Asphalt | No Comments

Innovation drives us to deliver asphalt that’s stronger than steel

World of AsphaltThe 2019 World of Asphalt expo provides opportunities for our industry to share ideas and learn best practices, as well as discover new products and services. It’s a perfect opportunity to investigate Surface Tech’s highly innovative, state-of-the-art ACE XP Polymer Fiber product. To learn how it can deliver outstanding benefits to your next asphalt project, we invite you to connect with Joe Dennis, our vice president & chief technical officer, to find out about an informative networking opportunity with industry specifiers and producers on Tuesday February 12th after WOA hours at the Yard House.

ACE XP is a dry form polymer, making it less expensive, more reliable and easier to adopt than wet polymers. Surface Tech custom-designed its MD3+ machine dosing system to ensure an easy, metered process to introduce ACE XP into any asphalt mixture. The MD3+ requires only compressed air and a 110-volt electric source to operate and will dose both ¾ (19mm) and 1.5-inch (38mm) fibers in U.S. and Metric tonnage rates.

Discover Surface Tech at the TRB Annual Meeting at Booth #1133

By | Asphalt, Concrete | No Comments

Innovative products that deliver better, stronger, longer-lasting building materials 

Transportation Research Board (TRB) 98th Annual MeetingIt’s almost here! The Transportation Research Board (TRB) 98th Annual Meeting will convene next week in Washington, DC.  We’ll be there, and we invite everyone to drop by our booth to learn how Surface Tech products can deliver significant benefits to your next concrete or asphalt project.

Our innovative ACE XP polymer fiber solution can make asphalt stronger than steel. JUNO XP, our alternative supplementary cementitious material (ASCM), utilizes cutting-edge advancements in mineralogy and pozzolans to improve the performance of concrete at a microscopic level. Stop by and learn more.

You can also discover more about our products by attending Surface Tech’s TRB Live! Theater. Be sure to mark our presentations on your meeting calendar:

Monday, January 14th – 9:30 a.m.
What is an ASCM and why do we care?
Jon Belkowitz, PhD, Chief Technology Officer, Surface Tech
advanced supplementary cementitious materialPortland cement concrete already incorporates a wide range of supplementary cementitious materials, including fly ash from coal combustion, and silica. However, these materials do not address all of the shortcomings of Portland cement in certain applications and environments. Alternative supplementary cementitious materials hold the promise of increasing the strength of concrete, requiring less water in the mix, improving workability and producing a concrete that’s less brittle. Surface Tech has been at the forefront of alternative binder technology since 2016. Come learn about JUNO XP. We are seeing spectacular potential for this product as an alternative supplementary cementitious material. We’ll explain how it can reduce cost and increase strength of traditional concrete in your next project.

 


Tuesday, January 15th
 12:30 p.m.
The ideal asphalt cracking performance test — what is it?
Joe Dennis, Vice President & Chief Technical Officer, Surface Tech
Phil Blankenship, PE, BLANKENSHIP ASPHALT TECH AND TRAINING, PLLC
ACE XP Polymer FiberASCE recently gave U.S. roadways a dismal “grade D+.” One main reason for this poor performance is the premature cracking of asphalt pavements. This presentation will review a variety of cracking performance tests currently available, providing the strengths and weaknesses of each — including a review of the newest crack performance test called the IDEAL CT crack test. Since the availability of asphalt crack improving modifier options is limited, the presentation will also provide an overview of the capabilities of aramid polymer fibers to decrease this premature cracking of asphalt pavements.

 

Here’s a New Year’s resolution that will pay off BIG for your business

By | Asphalt, Concrete | No Comments

construction with concrete asphalt

As a contractor, you want to provide solutions that will keep your customers coming back. Whether it’s asphalt pavement or a concrete installation, you win when the mix performs well during installation and results in a finished project that clients will appreciate for many years.

Here’s our best advice for 2019:  Resolve to find better, more advanced material solutions that will improve your mix quality, lower your costs, increase ease-of-use and produce a stronger end result that will serve your customers so well that they’ll turn to you again and again — and also recommend you to others.

At Surface Tech, we focus solely on researching and developing the material technologies that enable contractors to deliver asphalt and concrete solutions that can stand the test of time. Naturally, we have two suggested products that will allow you to keep your new year’s resolution.

With ACE XP polymer fiber, contractors can promise — and deliver — asphalt that’s stronger than steel. Unlike other fiber reinforcement products, ACE XP utilizes aramid fibers that provide 400,000 psi tensile strength and micro roots that spread tenaciously throughout the bitumen of the asphalt. The result is a surface that resists rutting and cracking in all kinds of weather and under bruising traffic conditions.

JUNO XP is a revolutionary alternative supplementary cementitious material (ASCM); a new technology that delivers outstanding cost savings without sacrificing performance in standard concrete mix designs. As a partial substitute for traditional concrete binders, this advanced material increases the strength-bearing microstructure of concrete to achieve outstanding toughness and durability.

If you want to know more about the revolutionary material advancements provided by ACE XP and JUNO XP, contact us today. It could result in the best New Year’s resolution you will make for your business— and your customers.

What do bowstrings, hockey sticks and skis have in common with asphalt?

By | Asphalt | No Comments

ACE XP aramid polymer fiber additiveAll require strength, flexibility and abrasion tolerance to achieve high performance. The common ingredient that delivers those winning traits is aramid fibers. These polymer synthetic fibers provide advantages that make them ideal for a wide range of products. So it’s not surprising that more than 60,000 tons of aramid fibers are produced annually, and demand continues to grow as new applications emerge.

Years ago, Surface Tech recognized the superior advantages that aramid fibers, particularly para-aramid fibers, could provide to asphalt applications. The company began offering the ACE XP aramid polymer fiber additive after years of painstaking research and multi-geographical testing. Back then, the challenge was to find a way to harness millions of tiny fibers into a final product that could be easily managed. By combining para-aramid with a wax treatment, Surface Tech achieved its goal of creating an additive that successfully reinforces and properly doses the entire matrix of asphalt.

The wax binds the polymer fibers to allow for an easy, reliable method for feeding into the asphalt mix. Once added, the wax melts and is fully soluble within the mix to release the polymer fibers in a uniform distribution. This unique delivery process produces the highest performing blend of Fiber Reinforced Asphalt Concrete (FRAC) on the market, and any asphalt project can benefit from ACE XP.

If you want an asphalt surface that resists cracking and rutting and dramatically extends the life of your pavement, call us. With para-aramid fibers, you’ll get asphalt that’s stronger than steel, and only from ACE XP — the Number One choice for strength, flexibility and abrasion tolerance.