Friction Monitoring of Superpave™ Mixes in Virginia. Starting from 1999, the Virginia Department of Transportation (VDOT) has adopted the Superpave™ mix design methodology for asphalt concrete (AC) materials. With the adoption of this method, VDOT has altered asphalt contents, aggregate gradations and other AC mix properties.

While there are an infinite number of questions that can be asked, we compiled a list of those questions that have been directed to us the most. These FAQs are categorized into subject areas listed in the contents drop-down box below. We tried to keep both the questions and answers concise. Additional information is referenced Continue reading Asphalt Pavement Construction

ection 315.05(b) Conditioning Existing Surface is replaced with the followin . (b) Conditioning Existing Surface: When the surface of the existing pavement or base is irregular, it shall be brought to a uniform grade and cross section as directed by the Engineer. The surface on which the asphalt concrete is to be applied shall be prepared

302 Asphalt Concrete Base 441 Asphalt Concrete, Type 1 and 2 (Surface and Intermediate Courses) 442 Superpave Asphalt Concrete, 12.5 mm, 9.5 mm or 19 mm, Type A or B (Surface and Intermediate Courses) Acceptance For Item 302 the contractor is required to develop a job mix formula (JMF) within limits for composition and

covering such topics as superpave courses, asphalt binder, quality control, and rehabilitation of concrete pavements with HMA. Asphalt Binder Testing-Asphalt Institute 2009-01-01 Now updated, this volume serves as a single resource to supplement Superpave PG asphalt binder system test methods. This new edition contains a chapter on the direct

Section 1: Definitions and Terms 1 Section 2: Bidding Requirements and Conditions 9 510-Filling and Sealing Cracks and Joints in Asphalt Pavements 557. 522-Portland Cement Concrete Pavement Repairs 575 523-Joint Sealing of Portland Cement Concrete Pavements 580 549-Pavement Markings 582 550-Pavement Marking Paint 586 551-Pavement

SHRP-A-407 The Superpave Mix Design Manual for New Construction and Overlays Ronald J. Cominsky University of Texas at Austin With contributions by:

SECTION 1031. RECLAIMED ASPHALT PAVEMENT AND RECLAIMED ASPHALT SHINGLES 1031.01 Description. Reclaimed asphalt pavement and reclaimed asphalt shingles shall be according to the following. (a) Reclaimed Asphalt Pavement (RAP). RAP is the material resulting from cold milling or crushing an existing hot-mix asphalt (HMA) pavement.

Section Title Page . 23.6.4 Hot Mix Asphalt (HMA)- Superpave Method structures, non-structural concrete, pavement and traffic signs, striping and signals. Adequate construction inspections are also the basis for acceptance by the Local Entity. Upon completion of the construction work, and prior to Local Entity's acceptance of

Mirafi® MPV500 and finally, the new asphalt overlay. After the pavement was milled, PG64-22 asphalt cement was applied to the milled surface at a rate of .25 galyd2. MPV500 was installed over the AC tack coat and was directly followed by 2” of new asphalt pavement. MPV500 extends pavement life by providing a waterproof barrier,

Water is also responsible fo r a large number of non-load relate d distresses such as: D-cracking in concrete pavements, and accelerated aging oxidatio and n in asphalt pavements (Cedergren, 1988) Therefore. pavemen, t drainage design should be at the forefront of pavement design and not a afterthoughtn . 2.2 Pavement Drainage Design Issues

Recycled Asphalt Pavement (RAP) 46 Lift Thickness 1.5 vs 2.0 Inches 46 Heated Bodies vs Non-Heated Bodies 47 Superpave vs Marshall Mixes 48 Same Paving Crew and Equipment, Different Mix Plant 48 Same HMA Plant - Different Paving Crews 49 Same Project - Two Paving Crews - Two HMA Plants - Same Day 50

900.670 0290 SPECIAL PROVISION (CONCRETE BRIDGE DECK SURFACE PREPARATION) 2,625.000 SF 900.680 0295 SPECIAL PROVISION (SUPERPAVE BITUMINOUS CONCRETE PAVEMENT, SMALL QUANTITY) 125.000 TON The estimate quantities are not guaranteed but are given as a basis for the comparison of bids.

This is an alphabetical listing of the terms and descriptions commonly used in the asphalt industry.* ASTM Definitions** Transportation Research Board Definitions A Absolute Viscosity: A measure of the viscosity of asphalt with respect to time, measured in poises, conducted at 60°C (140°F). The test method utilizes a partial vacuum to induce flow in the viscometer.Aggregate Spreaders

CITY OF COLUMBUS OHIO CONSTRUCTION AND MATERIAL SPECIFICATIONS ONLINE VERSION JANUARY 1ST, An Equal Opportunity Employer NOTICE: The page layout of this online document WILL NOT MATCH that of

December 315 - 1 SECTION 315 . ASPHALT CONCRETE PAVEMENT - NON SUPERPAVE . I. GENERAL 1.1 DESCRIPTION OF WORK . The Contractor shall furnish all labor, supervision, material (except as herein provided), tools, equipment, supplies, and services; and, shall perform all Work necessary for constructing one or

Related Specifications for Asphalt Pavements in the State of Arizona, which was initiated in 1999. These specifications were to be based upon the Mechanistic-Empirical Pavement Design Guide (M-E PDG) developed for the National Cooperative Highway Research Program (NCHRP) Project 1-37A. The overall research was divided into three major phases.

The Roads & Highways Section consists of the Pavement Evaluation Unit, Asphalt Concrete Unit, Asphalt Binder Unit and Geoprobe Unit. The section provides complete services for road construction, reconstruction and maintenance. All phases from planning, evaluation, design, mix design, construction monitoring, and quality control are supported.

SECTION 334 Superpave Asphalt Concrete specification by modifying the critical portions of Section 334 to ensure good performance for airfields under 60,000# AGW. Section 334A was written to comply with the guidelines and criteria in the Draft EB-XX. Appendix A2 is simply the full unmodified 19-page FDOT Section 334, included as part

Reclaimed Asphalt Pavement - Asphalt Concrete (Cold Recycling) INTRODUCTION Cold recycling (CR) is a way to recycled RAP without using heat during the recycling process. Reclaimed asphalt pavement (RAP) can be used as an aggregate in the cold recycling of asphalt paving mixtures in one of two ways.

James G. Speight PhD, DSC, in Asphalt Materials Science and Technology, 9.3.2.6 Superpave Mix. Superpave mix (superior performing pavement mix) is not specifically HMA and refers to a complete paving system. The mix is designed to accommodate the traffic loading expected as well as the historical climatic conditions of the location for the pavement.

321.00200 Asphalt Concrete Pavement (Marshall 1/2 in Mix) Ton 321.00300 Asphalt Concrete Pavement (Marshall 3/4 in Mix) Ton 321.01001 Asphalt Concrete Pavement (Superpave 3/8 in Mix, Low Traffic) Ton 321.01002 Asphalt Concrete Pavement (Superpave 3/8 in Mix, High Traffic) Ton 8/10/ 9:38:07 AM Page 2 of 24

Type Performance Only (BMD P) asphalt mixtures shall be designed to conform to Section 211.03 of the Specifications except that the requirements in Tables II -13 and II-14 shall be waived. However, the grading and Superpave volumetric properties shall

or Portland cement concrete pavement to provide an area to butt the new hot-laid bituminous concrete pavement against the existing pavement. Materials: Provide Materials as specified in: Asphalt Cement Section 1012. Asphalt Production Section 1014 - EXCEPTION - NO RAP AND NO RAS ALLOWED IN MATERIAL. Tack Coat* Section 1011 * For Thin-Lift items

December 315 - 1 SECTION 315 . ASPHALT CONCRETE PAVEMENT – NON SUPERPAVE . I. GENERAL 1.1 DESCRIPTION OF WORK . The Contractor shall furnish all labor, supervision, material (except as herein provided), tools, equipment, supplies, and services; and, shall perform all Work necessary for constructing one or

334ASPHALT CONCRETE FOR LAP (class - d). (REV 6-18-21) (FA 7-2-21) (1-22) SECTION 334 is deleted and the following substituted: SECTION 334ASPHALT CONCRETE FOR LAP (OFF-SYSTEM) 334-1 Description. 334-1.1 General: Construct an Asphalt Concrete pavement based on the type of work specified in the Contract and the Asphalt Work Categories as defined