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CONSTRUCTION INSPECTOR'S CHECKLIST FOR HOT- MIX …

Rev. 12/14/07 Hot-Mix Asphalt Binder & Surface Course Sheet 2 of 14 • constructing a temporary earth wedge against the edge of pavement and compacting it to the satisfaction of the Engineer.

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How Tack Coat Improves Your Asphalt Paving

For ease of calculation purposes, an asphalt emulsion commonly used for a tack coat application can be taken to be approximately two-thirds asphalt binder (67 percent asphalt binder) and one-third ...

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Superpave Volumetric Mix Design - Asphalt Pavement

This specification for Superpave volumetric mix design uses aggregate and mixture properties to produce a hot mix asphalt (HMA) job-mix formula. ... —The definitions given in Sections 3.7 and 3.8 apply to Superpave mixes only and differ ... properties of the blended asphalt binder than the medium and low stiffness RAP (PG 82-16 and PG 82-22 ...

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Chapter 2: Asphalt & Asphalt Paving Materials 2-1

application, but after breaking, the asphalt binder returns to its original black color. Emulsions are used for a Tack Coat between subsequent layers of asphalt …

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National Center for Asphalt Technology

This course is designed for asphalt plant and roadway personnel involved in producing and placing HMA mixtures. In addition, the course will help owner/agency personnel such as project engineers, roadway inspectors, materials engineers, and testing technicians responsible for monitoring mix quality and overall construction operations.

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NEW YORK STATE DEPARTMENT OF TRANSPORTATION …

asphalt pavement (when applicable), and PG binder to meet the required mixture volumetric properties, given the specific traffic and weather conditions of the project location.

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Frequently Ask Questions | Asphalt Enterprises Atlanta, GA

What are the weather limitations, if any, for placing hot mix asphalt? ... and to provide adhesion between the base course and succeeding asphalt course. After applying the prime coat, it must cure for a minimum of 48-72 hours before asphalt is placed, with no rain in the forecast. ... As the liquid asphalt binder begins to dry raveling will ...

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Tack Coats - Pavement Interactive

Sometimes emulsified asphalt tack coats are diluted with water to increase the total volume of liquid while maintaining the same volume of asphalt binder within the emulsion. This can help achieve a more uniform application without applying excessive amounts of asphalt binder.

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DESIGN MANUAL FOR ROADS AND BRIDGES

Laying Bituminous Surface Courses 3. Binders and Binder Modifiers 4. Hot Rolled Asphalt Anne x A: Method for Determination of Loss of Chippings and Proportion of Broken Chippings 5. Porous Asphalt 6. Thin Wearing Course Systems 7. Stone Mastic Asphalt ... 14. References 15. Enquiries DESIGN MANUAL FOR ROADS AND BRIDGES February 1999. Volume 7 ...

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Hot Mix Asphalts 101 - New Jersey

A mixture of asphalt binder and graded mineral aggregate, mixed at ... HMA 19M64 Base Course 3) Binder Grade 4) Location within the payment 1) Nominal Maximum Aggregate Size (mm) Superpave Mix Selection 4.75 9.5 12.5 19.0 25.0 37.5. Dense Graded Mixes ... Hot Mix Asphalts 101 ...

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Chapter 7 - Selection of Asphalt Concrete Mix Type | A ...

Binder courses are typically dense-graded mixtures with nominal maximum aggregate sizes of 19 or 25 mm. Base Course The base course consists of one or more lifts of …

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Frequently Ask Questions | Asphalt Enterprises Atlanta, GA

What are the weather limitations, if any, for placing hot mix asphalt? ... and to provide adhesion between the base course and succeeding asphalt course. After applying the prime coat, it must cure for a minimum of 48-72 hours before asphalt is placed, with no rain in the forecast. ... As the liquid asphalt binder begins to dry raveling will ...

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Superpave Asphalt Mixture Design Workshop Workbook

SUPERPAVE This workshop is intended to demonstrate the Superpave asphalt mixture design system developed by the Strategic Highway Research Program (SHRP), along with the application of certain innovative concepts in field management of asphalt mixes.

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Asphalt concrete - Wikipedia

Asphalt concrete (commonly called asphalt, blacktop, or pavement in North America, and tarmac, bitumen macadam or rolled asphalt in the United Kingdom and the Republic of Ireland) is a composite material commonly used to surface roads, parking lots, airports, as well as the core of …

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Category:402 Bituminous Surface Leveling - Engineering ...

The asphalt binder for the contract leveling course mixture (surface leveling) should typically be PG 64-22. Asphalt lift thickness and estimate factors used for calculating mix quantities should be shown on the typical section sheets for the project.

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PG Binder Selection e.tx.us

PG Binder Selection Jerry Peterson Construction Division. Superpave Asphalt Binder Spec ... ¾Superpave Weather Database ... Asphalt Binder Grades D/FW, Texas Pavement Temperature, °C 98% min 50% min 98% and 50% min. PG Binders and Grade Bumping for Rut Resistance Rutting

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Asphalt Seal-Coat Treatments - US Forest Service

Asphalt seal coats are composed of a thin layer of an asphalt material such as cutbacks, asphalt emulsions, or paving-grade asphalt cement. Modifiers are often added to the asphaltic liquid mixture and may include rubber, latex, polymers, and rejuvenators.

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The Ohio Center for Asphalt Pavement Education

The Ohio Center for Asphalt Pavement Education ... Prime coat is the application of a penetrating liq-uid asphalt on a compacted aggregate base course. ... will absorb asphalt binder from the subsequently placed asphalt layer—hence the need for a prime coat. This is false.

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FHWA Hot Mix Asphalt Pavement Guidelines

Hot Mix Asphalt Construction, Participant Manual for NHI Course 13132 ... the contractor to place top course HMA outside the weather, seasonal and temperature requirements of the specifications. II. Construction Equipment ... The application rate shall be approved by the Engineer and be …

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Chapter 2: Asphalt & Asphalt Paving Materials 2-1

application, but after breaking, the asphalt binder returns to its original black color. Emulsions are used for a Tack Coat between subsequent layers of asphalt …

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Superpave Asphalt Mixture Design - Home | Federal Highway ...

volumetric asphalt mixture design 1. Superpave Overview nThe final product of the SHRP asphalt ... n19.0 mm Surface Course – Such that the top of the pavement layer 5 from the surface is less than 100 mm. ... modified asphalt binders. nThe conversion from centipoise to centiStokes is important, however it is

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ITEM 401 ASPHALT CONCRETE PAVEMENTS—GENERAL

401.06 Weather Limitations 401.07 Notification ... For surface courses with polymer modified asphalt binder, ... The mixing time is defined as the interval between the start of application of the asphalt binder and the opening of the mixer gate.

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Asphalt Binder - SealMaster

Asphalt Binder is an anionic asphalt emulsion designed for use as a tack coat for patching, paving, ... Apply properly mixed Asphalt Binder (Asphalt Binder, Water) with spray equipment, brush, or squeegee. Stir material ... weather, construction, condition of pavement, tools utilized, and other ...

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Basic Principles of Asphalt Compaction -

2 Rolled asphalts are divided into base courses, asphalt binder courses and asphalt wearing courses. Asphalt concrete, stone mastic asphalt and porous

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Minimum Temperature to Pave with Asphalt - Earthwork ...

 · Illinois DOT says 40 deg and the forecast is for rising temperatures for binder course, 45 deg and rising for surface course. RE: Minimum Temperature to Pave with Asphalt ... but sometimes weather forces you to do things in a less than ideal manner. ... I've put binder course asphalt on frozen ground and had it hold up perfectly. I've also had ...

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Tack Coat Guidelines 1-09 - Caltrans

 · Tack Coat Guidelines STATE OF CALIFORNIA DEPARTMENT OF TRANSPORTATION Division of Construction ... cooler weather. Asphalt binder is heated and applied at a much higher temperature than an emulsion. When the ambient temperature is above 85ºF, asphalt binder will easily adhere to ... asphalt. • Tack coat application rate.

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Section 455 Asphaltic Materials - Wisconsin

Section 455 Asphaltic Materials 455.1 Description (1) ... Asphalt Binders available at: ... Do not apply if weather or surface conditions are unfavorable or before impending rains. (2) Use tack material of the type and grade the contract specifies. The contractor may, with the engineer's ...

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How to Successfully Achieve Cold Weather Asphalt Paving

How to Successfully Achieve Cold Weather Paving When it comes to HMA, effective compaction is key ... (binder). Asphalt cement is the glue that holds together the rocks that make up hot mix asphalt.

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