ultra thin asphalt overlay

Ultra Thin Overlay - Asphalt Paving Systems, Inc

Ultra Thin Overlay Asphalt: Specific dense grade asphalt mix. High quality aggregate. Mixes typically place 3/4" to 1" thick. Polymer modified binders. Minimal loss of curb reveal. Traffic can be returned to normal quickly. Maintain overhead clearances.

Thin Overlays - Asphalt Pavement

A new generation of thin-lift asphalt overlays called Thinlays™ are a popular approach to pavement preservation because of their ability to provide improved ride quality, reduce pavement distresses, maintain surface geometrics, reduce noise levels, reduce …

Ultra Thin Asphalt Overlays | West Contracting

Ultra Thin Asphalt is a hot mix asphalt installed with a specialized asphalt paving machine. This machine is called a Bondtekk Paving Machine, a technology developed by Road Science.

Thin Asphalt Overlay | E&B Paving


Thin lift overlays | Asphalt magazine

Thin lift asphalt overlays come in different types and can meet many different user needs. They can be very useful in correcting surface deficiencies. They can restore skid resistance to a pavement whose surface has begun to polish. They can be effective in sealing the existing pavement …

HMA Ultra-Thin - APAM, Asphalt Pavement Association of ...

HMA Ultra-Thin Makes Dollars and Sense Most common surface maintenance treatments only delay the inevitable. But a thin overlay of hot-mix asphalt - such as HMA Ultra-Thin - not only provides a new pavement surface for a fraction of the cost of starting over, it's the only preventive maintenance technique that adds structural value to the roadway, while helping to extend a pavement's service life.

Tech Brief: The Use of Thin Asphalt Overlays for …

A thin asphalt overlay will improve smoothness more than a chip seal and the small macrotexture of the thin asphalt overlay surface will generate less tire–pavement interface noise than the chip seal. These benefits are a part of the value of using a thin asphalt overlay.

Thin Asphalt Overlays - roads.maryland.gov

overlay immediately with a thin Gap-Graded Stone Matrix Asphalt (GGSMA) mix. The application of these two materials per this Special Provision is referred as an Ultra Thin Bonded Wearing Course. SECTION 900 —ULTRA-THIN BONDED WEARING COURSE Polymer Modified Emulsion Membrane Gap-Graded Stone Matrix Asphalt (GGSMA) Mixture for UTBWC

Best Practices for Asphalt Overlays and Thin Lifts

A conventional overlay is at least 1.5 inches thick, while a thin overlay is less than 1.5 inches thick. In this section of the article, we’ll outline tips for—and best practices of—paving overlays and thin lifts.

Thin asphalt overlays for pavement preservation

Thin overlays need small NMAS Thin overlays < 1.5 inches thick Aggregate size between 4.75 and 12.5 mm NMAS Ratio of lift thickness to NMAS range 3:1 to 5:1 Quality LA Abrasion: 35–48 maximum Sodium Sulfate: 10–16 maximum CA Fractured Faces (does not apply to 4.75 mm) •2 or More: 80–90 •1: 10–100

76 Technical Note - VicRoads

and the asphalt surfacing in a single pass. Tandem steel wheel rollers are used to compact the asphalt and embed it into the bond coat. As the UTA is only an average of 15 to 20 mm thick, the water resistant bond coat forms an integral part of the UTA surfacing. As the bond coat is immediately covered with

413.3 Ultrathin Bonded Asphalt Wearing Surface ...

An ultra-thin (< 1”) bonded asphalt wearing surface (UBAWS) is a hot mix asphalt (HMA) overlay placed over a heavy asphalt emulsion layer or membrane. The thickness ranges from 1/2 in. to 3/4 inch. The table below lists the minimum lift thickness for each UBAWS type based on the nominal maximum aggregate size allowed for the mixture.

Thin Lift Danny Gierhart, P.E Overlays: Regional ... - Asphalt

•Thin Lift Overlays are typically defined as surface mixes of 1.5” or less in compacted thickness • They can be a simple overlay or part of a mill-and-fill operation • They are not typically intended to strengthen the pavement structure, but

Thin Asphalt Overlays for Pavement Preservation

Defining a Thin Asphalt Overlay? Thin overlays are typically ≤ 1 ½ inch thick (ODOT defines as any overlay less than or equal to 2 inch thick) They can be a simple overlay or part of a mill-and-fill strategy They are not typically intended to strengthen the pavement but instead to …

Thin Asphalt Overlay - Grimes Asphalt

Thin overlays (1″-1.5″ of asphalt) and ultra thin overlays (less than 1″) offer an economical resurfacing, preservation, and renewal paving solution for roads requiring safety and smoothness improvements.

Asphalt mixture design for porous ultra-thin overlay ...

As an ultra-thin overlay, PUTO has a small aggregate size and low structural strength. Therefore, its asphalt binder needs to have a high bond strength to ensure its performance meets the requirements , .In addition, PUTO also has a large void ratio, resulting in low strength, poor durability, and diseases such as aggregate peeling and looseness are easily caused , , .

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Thin Asphalt Overlays | Pavement Management Expert

Ultra Thin Bonded Wearing Course Ultrathin Bonded Wearing Course (UBWC) is a heavy application of a polymer modified emulsion followed immediately by a thin layer of gap graded hot mixed asphalt. The emulsion is applied through a spray bar mounted behind the wheels and immediately ahead of the screed on a conventional HMA paving machine.

TechBrief: Thin Concrete Overlays

ultra-thin overlays —due in part to construction issues but also to the design thickness and inappropriate use. For instance, some industry recommendations point to the use of thin bonded overlays in rehabilitating existing asphalt that has experienced thermal cracking. This should be considered carefully given that the presence of

Concrete Overlays - Concrete Parking

Ultra-thin overlays for streets and parking lots is a no-compromise material that delivers the long life and superior performance characteristics of at a price competitive with asphalt overlays.

Concrete Pavement Overlay Design

Flowable Fibrous Concrete for Thin Pavement Inlays (Bordelon and Roesler 2011) (see Appendix C) 8. Illiniois DOT’s spreadsheet for bonded in lay/overlay of asphalt design (Roesler et al. 2008) Concrete Overlay Guide (Harrington et al. 2014)

Author: Jeffery Roesler

Ultra-Thin Friction Course - Asphalt Maintenance Solutions

Ultra-Thin Friction course is used to both seal and level roadways which exhibit moderate to heavy cracking and are also in need of re-profiling. Candidates for this process must be structurally sound; any areas exhibiting base failure should first be repaired.

Concrete Pavement Resurfacing - ACPA

An Ultra-thin Whitetopping Overlay (UTW) is a thin overlay; 2 to 4 inches thick, placed on top of a prepared surface of an existing asphalt pavement. In addition to being thinner, two other factors differentiate UTW from conventional whitetopping:

How to Sell, Construct Thin Asphalt Overlays

Keep in mind, the thin asphalt overlay is loosely defined as being anywhere from three quarters of an inch to 2 inches compacted, depending on the agency you ask. Watson shared that NCAT decided, for the purposes of surveying agencies, its researchers would define the thin asphalt overlay as no more than 1.5 inches thick.

Asphalt vs Concrete: Which Is Best? | Unique Paving Materials

Jun 12, 2018 · Overlays require less construction and overall maintenance, and can help a paving material last longer, providing resistance to salt, chemicals, UV rays and other harmful factors such as freezing, thawing, and vehicle spills. The main types of overlays include: White topping; Ultra-thin white topping; Bonded overlay; Unbonded overlay

Ultra Thin Bonded Wearing Course - The Maryland …

Ultra Thin Bonded Wearing Course & Alternatives Vince Galletti Quality Control Manager ... Ratio, & Performance Thin Asphalt Lift Overlays ... • Open Graded Friction Course placed with a high residual tack coat. • High Performance Thin Overlay (HPTO) • Ultrathin Bonded Wearing Course. Scope • MDSHA OMT to evaluate proposed pavement ...

Thin Asphalt Overlays - apa-mi

IS - 135 Thin Asphalt Overlays for Pavement Preservation. Thin asphalt overlays are popular approaches to pavement preservation because of their ability to provide improved ride quality, reduce pavement distresses, maintain surface geometrics, reduce noise levels, reduce life cycle costs and provide long-lasting service.

NovaChip®/Bondtekk® | West Contracting

West Contracting is a certified, licensed applicator for Ultra Thin Bonded Asphalt (UBAWS or UTBWC) also known as “NovaChip®.” The NovaChip® process was developed in the 1990s to provide a superior surface treatment on heavily traveled roads.

TxDOT High Performance Thin Overlays

TXDOT HIGH PERFORMANCE THIN OVERLAYS ... recycled asphalt materials –Building in fatigue cracking to our pavement structures (16 to 20:1) 4 2 year old overlay with RAP/RAS . Footer Text Genesis of Thin Overlays Goal: Develop a new strategy for PM overlays in the Austin District

Design and Construction of Ultra Thin Overlays as an ...

Thin and ultra thin overlays are asphalt mixtures that are placed over existing pavement structures to as a preventive maintenance treatment used to extend the pavement’s service life, protect the pavement structure and restore its skid resistance.

Asphalt Paving | ASI Paving

If your asphalt is starting to crack or has small puddles, an ultra- thin overlay may get the job done. This process involves removing one inch of the existing asphalt and repaving a new 1” wearing course.

Thin Lift Asphalt Overlays - Asphalt InstituteAsphalt ...

Thin Lift Asphalt Overlays - Asphalt Institute | Serving the needs of liquid asphalt manufacturers and suppliers worldwide since 1919. Session Sub-title: Project Selection, Design and Construction Description: This webinar represents a joint effort between the Asphalt Institute, the National Asphalt Pavement Association, and the National Center for Asphalt Technology.

6.3mm Thin Asphalt Overlay (Thin Hot Mix Asphalt …

6.3mm thin asphalt overlay can help with: Excessive roughness, Poor surface friction and polishing, Bleeding and weathering, Shoving/ low severity surface related rutting, Minor/Moderate Raveling, Bumps, settlements, and heaves. Scratch / interlayer. Where Is Use of Thin Asphalt Appropriate?

NovaChip®/Bondtekk® | West Contracting

West Contracting is a certified, licensed applicator for Ultra Thin Bonded Asphalt (UBAWS or UTBWC) also known as “NovaChip®.”. The NovaChip® process was developed in the 1990s to provide a superior surface treatment on heavily traveled roads. This application combines the two key processes of traditional paving methods into one with one machine –...

Ultra Thin Bonded Wearing Course - Asphalt Surface ...

Ultra Thin Bonded Wearing Course (UTBWC) is designed for use as a high performance surface treatment over structurally sound asphalt or pavements. This treatment is used to correct surface distresses , such as raveling or cracking , to restore a smooth surface.


The bond coat will be an emulsified asphalt in accordance with the requirements of section 904 of the Standard Specifications for Construction, Type SS-1h. 2. HMA Ultra-Thin Overlay. Compose the HMA Ultra-Thin Overlay of a mixture of aggregate, asphalt binder, and if …

Midland Asphalt Materials Inc. | NovaChip®/Ultra Thin ...

NovaChip®/Ultra Thin Bonded Wearing Course is an exclusive pavement process utilizing a self-priming paver that applies an ultra thin, gap-graded hot mix wearing course over a polymer-rich asphalt emulsion. This process rapidly secures the wearing course to the existing surface resulting in minimal traffic delays.

3 Thin Hot-Mix Asphalt Overlay - The National Center …

Thin Hot-Mix Asphalt Overlay 8 3-thin hot-5-30.qxd 6/8/2003 2:15 PM Page 8. Thin Hot-Mix Asphalt Overlay 9 Trucks! Sufficient trucks are available to allow the paver to keep moving at a uniform speed. ! Trucks are clean and free of solvents before the mix is loaded.! Trucks have …

TxDOT High Performance Thin Overlays

Genesis of Thin Overlays Evaluated Thin Overlay Pilot Program: –Objective #1: Equal or better performance than current standard pavement preservation practices •Improved Ride Quality (25-35% Improvement) •High Skid Resistance (mid 40s to mid 50s) •Noise Reduction (~98 dBA) –Objective #2: Less susceptible to premature distress

Ultra-thin Pavers new solution to old . - The ...

Jan 14, 2014 · Like stamped that we were instrumental in promoting over 25 years ago here in the Northeast we are presently as excited about installing ultra-thin pavers as a solution to improving the look of your or asphalt at your home or business. If you can spare an inch of height and in most cases that is an easily met requirement. We

Road Surface Maintenance Material Go Green Micro Overlay ...

Go Green Micro Paving Cold Mix Asphalt is patented high technology and environment friendly product, uses eco-friendly cold mix processing and significant ultra thin overlay technology, micro overlay cold asphalt especially designed for construction and maintenance of wearing courses. Its paving thickness only require 0.7-1.2cm.

Use of reacted and activated rubber in ultra-thin hot ...

Sep 20, 2019 · Use of reacted and activated rubber in ultra-thin hot mixture asphalt overlay for wet-freeze climates Author links open overlay panel Siyu Chen a Fangyuan Gong a b Dongdong Ge a Zhanping You a Jorge B. Sousa c

Pennsylvania’s Experience with Thin Asphalt Overlays

of Asphalt Mix for Thin Lifts Asphalt Binder n PG 76-22 or PG 64E-22 if ESALs > 3M n PG 64-22 if ESALS ≤ 3M n PG 76-22 or PG 64E-22 if grade≥ 5% regardless of traffic level. Mix Design n 75 Gyrations n Air Void: 4.0% n VMA: 16.5%

NAPA Online Store - National Asphalt Pavement Association

This guide provides comprehensive guidance on using Thinlays, a suite of thin asphalt pavement mixtures designed for pavement preservation — including how Thinlays fit within pavement management systems, when and how they should be used based on existing pavement condition, how Thinlay mixes should be developed and specified, and best practices for Thinlay construction.

Las Vegas contractor enters into Ultra Thin Asphalt ...

Dec 09, 2010 · As such UTACS are similar to Caltrans' bonded wearing course, "a gap- or open-graded, ultra-thin hot-mix asphalt mixture applied over a thick polymer modified asphalt emulsion membrane," to …

Road Science: Thin is In - Equipment World magazine

Jan 01, 2010 · Typically, a thin asphalt overlay will be a 3/8-inch NMAS mix, using performance-grade binder, placed 1- to 1.5-inch thick. An ultra-thin asphalt overlay will be a slightly finer-graded mix placed 0.6- to 1-inch in depth. “People are looking for a way to keep their road system in as good a …

Thin Overlays - New Jersey

Types of Thin HMA Surfacings • Dense-graded mixes – Continuously graded, Superpave – High Performance Thin Overlay (HPTO) • Open-graded mixes – 15-22% voids, fibers and polymer or crumb rubber – Used to reduce splash and spray, improve high speed friction and reduce tire noise • Gap-graded systems – SMA and SMAR mixes (9.5mm & 12.5mm) – Ultra-Thin systems (Novachip)

Applications of High-Performance Concrete for Ultra -Thin ...

Ultra-thin whitetopping is a technique requiring several field conditions to be met concerning the old asphalt pavement in order to perform well as an overlay. They are full bond condition at the interface of HPC and asphalt (generally provided by milling), asphalt without fatigue cracking and rational joint spacing.

Whitetopping - Chaney Enterprises

Asphalt with distortions of 2 inches or more may need to be milled before whitetopping can be poured. Deep ruts, cracks, and pot holes can be filled with flowable fill if the layer of the whitetopping is to be thin, but thicker overlays may not require ruts to be filled. What about existing curbs?

Evaluation of Thin Hot Mix Asphalt Overlay

industry has been looking into thi n asphalt overlays and their best applications on Pennsylvania roads. To evaluate the performance of such mixes and develop relevant specifications, PennDOT initiated a ourf -year research program with Penn Statetitled “Evalu, ation of Thin Hot Mix Asphalt Overlay.”

Concrete Overlays - Concrete Parking

Price Ultra-thin overlays are an affordable way to reap the many advantages of pavement, and it is competitively priced with asphalt overlays. Ease of placement Surface preparation is minimal, and paving can be accomplished with the same equipment used in conventional installation.

Office Locations and Contact Information for Sunland Asphalt

Contact Sunland Asphalt for all of your asphalt needs. We have offices in Phoenix, Tempe, Tucson, Arizona; Las Vegas, Nevada, Albuquerque, New Mexico and Littleton, Colorado. ... Asphalt Repairs Crack Seal Sealcoating Ultra Thin Bonded Wearing Course Polychip Milling Paving & Overlays Concrete Infrared Repair Markets . Government/Agencies ...

Development of Design Guide for Thin and Ultra-Thin ...

Thin and Ultra-Thin Concrete Overlays of Existing Asphalt Pavements, Task 2: Review and Selection of Structural Response and Performance Models Julie M. Vandenbossche, Principal Investigator Department of Civil and Environmental Engineering University of Pittsburgh December 2011 Research Project Final Report 2011-25

Ultra Thin PCC Overlays - Iowa

evaluate the feasibility of overlays (less than 100 mm (4 in.) thick) of asphalt for resi~ential streets, parking, and other low volume applications. The HR-559 Ultra­ Thin Whitetopping is a follow up evaluation of the Kentucky project. The type and size of fiber along with the joint

Maintenance | Sunland Asphalt

Asphalt Repairs Crack Seal Sealcoating Ultra Thin Bonded Wearing Course Polychip Milling Paving & Overlays Concrete Infrared Repair Markets Government/Agencies Commercial/Retail Residential Communities Education Industrial


Thin HMA overlays provide a new asphalt surface and prolong the pavement structure life. This thin (0.5 to 1.0 inch) surfacing provides the benefits of an asphalt surface at a low cost that helps maintenance dollars go farther. $52,588 per lane mile was the …

Thin Asphalt Overlays - E&B Paving, Inc.

Also known as “thin lifts,” thin overlays (1”-1½” of asphalt) and ultra thin overlays (less than 1”) offer an economical resurfacing, preservation and renewal paving solution for roads requiring safety and smoothness improvements rather than significant structural rehabilitation. According to a …

Evaluating the Performance of Whitetopping Overlays in ...

and so are more resistant to stresses. Variations called “thin whitetopping” and “ultra-thin whitetop-ping” use layers that are less than 4 inches thick and also involve bonding the PCC layer to the under-lying layer by texturing the asphalt. Most ultra-thin whitetopping overlays also use fiber-reinforced