Essential articles

Latest subject

  • Asphalt Binder - sealmaster

    Asphalt Binder - sealmaster

    Asphalt Binder™ is an anionic asphalt emulsion designed for use as a tack coat for patching, paving, and coating processes. Asphalt Binder™ promotes adhesion of bituminous concrete products and coatings. Asphalt Binder™ also meets the ISSA requirements for SS1h. Uses

    Get Price Online
  • 34553-03 Design Guide - pa-asphalt

    34553-03 Design Guide - pa-asphalt

    Asphalt pavements are constructed of one or more courses of HMA placed directly on the subgrade or on an aggregate base. HMA SPECIFICATIONS All work involving HMA pavements and resurfacing can be specified by using the PENNDOT Specifications Publication 408/2003 in conjunction with the typical sections that follow. 1

    Get Price Online
  • Item 340 Dense-Graded Hot-Mix Asphalt (Small Quantity)

    Item 340 Dense-Graded Hot-Mix Asphalt (Small Quantity)

    Dense-Graded Hot-Mix Asphalt (Small Quantity) 1. DESCRIPTION Construct a hot-mix asphalt (HMA) pavement layer composed of a compacted, dense-graded mixture of aggregate and asphalt binder mixed hot in a mixing plant. This specification is intended for small quantity (SQ) HMA projects, typically under 5,000 tons total production. 2. MATERIALS

    Get Price Online
  • Superpave Performance Grading - Pavement Interactive

    Superpave Performance Grading - Pavement Interactive

    Penetration grading and viscosity grading are somewhat limited in their ability to fully characterize asphalt binder for use in HMA pavement. Therefore, as part of the Superpave research effort new binder tests and specifications were developed to more accurately and fully characterize asphalt binders for use in HMA pavements. These tests and specifications are specifically designed to .

    Get Price Online
  • WSDOT Construction Bulletin #2016-07: New Asphalt Binder .

    WSDOT Construction Bulletin #2016-07: New Asphalt Binder .

    While the PG specifications provided a number of tools to address performance of asphalt binders used in production of Hot Mix Asphalt (HMA) pavements there are some shortcomings. The PG binder specifications were developed based on studies of unmodified binders, or what is referred to as "Neat"

    Get Price Online
  • The Use and Performance of Asphalt Binder Modified with .

    The Use and Performance of Asphalt Binder Modified with .

    The Use and Performance of Asphalt Binder Modified with Polyphosphoric Acid (PPA) This Technical Brief provides an overview of the implication of the use of Polyphosphoric Acid as a modifier for asphalt binders and implications in relation to asphalt pavement performance. Background . The modification of asphalt binder to improve performance

    Get Price Online
  • 2018 Specifications and Special Provisions - Connect NCDOT

    2018 Specifications and Special Provisions - Connect NCDOT

    2018 Specifications and Special Provisions Standard Specifications, Special Provisions, Pay Items, and Other Resources Connect NCDOT > Resources > Specifications > . PRICE ADJUSTMENT FOR ASPHALT BINDER FOR PLANT MIX: 2000-11:

    Get Price Online
  • Wisconsin Asphalt Bid/Mix Specification Tool | Wisconsin .

    Wisconsin Asphalt Bid/Mix Specification Tool | Wisconsin .

    Dec 06, 2017 · Wisconsin Asphalt Bid/Mix Specification Tool. Updated December 6, 2017. The Wisconsin Asphalt Bid/Mix Specification Tool was developed as a joint effort by the Wisconsin Department of Transportation (WisDOT) and the Wisconsin Asphalt Pavement Association (WAPA). Use this tool to generate the WisDOT bid item number for each pavement layer.

    Get Price Online
  • Multiple Stress Creep Recovery (MSCR): Binder Selection .

    Multiple Stress Creep Recovery (MSCR): Binder Selection .

    Lesson's learned with MSCR Challenges with JnrDiff The JnrDiff specification was designed to limit stress sensitivity Parameter has high variability (no spec tolerance) AMRL does not certify labs on this parameter Never properly evaluated for -34 binders In fall 2016, the Binder ETG created a task group to investigate Other CSBG DOT's have waived JnrDiff

    Get Price Online
  • Asphalt Binder Basics - North Dakota Local Technical .

    Asphalt Binder Basics - North Dakota Local Technical .

    Asphalt Binder Basics Specifications, History and Future. Asphalt Binder "A dark brown to black cementatious material in which the predominating constituents are bitumens which occur in nature or are obtained in petroleum processing." –ASTM D8 The glue that binds the aggregate together

    Get Price Online
  • RESEARCH BUREAU

    RESEARCH BUREAU

    while optimizing the formulation and adopt MSCR into the binder specification and implement plus grades of PG asphalt binder, in light of very small cost increase (less than 5%) and significant performance improvements (over 20% life extension) in plus-grade asphalt pavement.

    Get Price Online
  • Asphalt-Rubber Binder Specifications

    Asphalt-Rubber Binder Specifications

    Equipment utilized jn prepari.og asphalt-rubber binder shall include 3.11 insulated a.sphalt tank capable of evenJy beating the. IlSphalt cement amI asphalt modifier to the required temperature for blending with the CRM. A mechanical blender for mixing the RSphaJt and the rubb~ binder shall be utilized.

    Get Price Online
  • What is Superpave? - Purdue Engineering

    What is Superpave? - Purdue Engineering

    Mar 20, 2007 · Sharing knowledge of the Superpave procedures throughout the highway industry will speed the implementation of Superpave as the standard asphalt binder selection and mix design. The Superpave Regional Centers are a unique source of expertise and assistance for highway agencies in their quest to build better, longer lasting roads.

    Get Price Online
  • SPECIFICATIONS – Colorado Asphalt Pavement Association

    SPECIFICATIONS – Colorado Asphalt Pavement Association

    SECTION 702 AND 703 REVISIONS Hot Poured Joint And Crack Sealant Revision of Section 702hpjcs Aggregate For Bases Revision of Section 703abc Aggregate For Bases (without Rap) Revision of Section 703abcnorap Aggregate For Hot Mix Asphalt Revision of Section 703ahma Aggregate For Stone Matrix Asphalt Revision of Section 703asma. PROJECT SPECIAL PROVISION WORKSHEETS

    Get Price Online
  • Standard Specification for Performance Graded Asphalt Binder

    Standard Specification for Performance Graded Asphalt Binder

    1.1 This specification 2 covers asphalt binders graded by performance. Grading designations are related to the average seven-day maximum pavement design temperature, and minimum pavement design temperature. This specification contains Table 1 and Table 2. Table 2 incorporates Practice D6816 for determining the critical low cracking temperature using a combination of Test Method .

    Get Price Online
  • Pavement Manual: Performance Graded Binders (PG Binders)

    Pavement Manual: Performance Graded Binders (PG Binders)

    The Strategic Highway Research Program (SHRP) produced a system of materials selection, testing, and mixture design named Superpave, for Superior Performing Asphalt Pavements. The Superpave binder specifications are performance-based; therefore, these binders are known as performance-graded (PG) binders in contrast to the older system of .

    Get Price Online
  • Pavement Manual: Performance Graded Binders (PG Binders)

    Pavement Manual: Performance Graded Binders (PG Binders)

    The Strategic Highway Research Program (SHRP) produced a system of materials selection, testing, and mixture design named Superpave, for Superior Performing Asphalt Pavements. The Superpave binder specifications are performance-based; therefore, these binders are known as performance-graded (PG) binders in contrast to the older system of .

    Get Price Online
  • AASHTO M 320 - Standard Specification for Performance .

    AASHTO M 320 - Standard Specification for Performance .

    This specification covers asphalt binders graded by performance. Grading designations are related to the average seven-day maximum pavement design temperature and the minimum pavement design temperature. This specification contains Table 1 and Table 2. .

    Get Price Online
  • SERIES 900 ROAD PAVEMENTS – BITUMINOUS BOUND

    SERIES 900 ROAD PAVEMENTS – BITUMINOUS BOUND

    Volume 1 Series 900 Specification for Highway Works Road Pavements – Bituminous Bound Materials Amendment – May 2018 5 902 (05/18) Reclaimed Asphalt 1 (05/18) The requirements of this clause apply to all bituminous mixtures containing reclaimed asphalt. 2 (05/18) Reclaimed asphalt may be used in the production of bituminous surface course, binder course,

    Get Price Online
  • Specification Databases - Asphalt InstituteAsphalt Institute

    Specification Databases - Asphalt InstituteAsphalt Institute

    Specification Databases - Asphalt Institute | Serving the needs of liquid asphalt manufacturers and suppliers worldwide since 1919. US State Binder Specification Database US State Emulsion Specification Database Canadian Province Binder Specification Database.

    Get Price Online
  • Asphalt Binder/Cement

    Asphalt Binder/Cement

    An asphalt binder's physical properties directly describe how it will perform as a constituent in asphalt concrete (AC) pavement. Although asphalt binder penetration and viscosity grading is still commonly used worldwide, new binder tests and specifications were developed to more accurately characterize asphalt binders for use in AC pavements.

    Get Price Online
  • STANDARD SPECIFICATIONS FOR ROADS AND .

    STANDARD SPECIFICATIONS FOR ROADS AND .

    When this publication, entitled Standard Specifications for Roads and Structures, dated January 2018, is incorporated by reference into the Department's construction bid proposals or contracts; it is made a part of that document and shall be known as the Standard Specifications.

    Get Price Online
  • AASHTO M 320 - Standard Specification for Performance .

    AASHTO M 320 - Standard Specification for Performance .

    This specification covers asphalt binders graded by performance. Grading designations are related to the average seven-day maximum pavement design temperature and the minimum pavement design temperature. This specification contains Table 1 and Table 2. .

    Get Price Online
  • Road Standards and Paving Standards - ASTM International

    Road Standards and Paving Standards - ASTM International

    Road Standards and Paving Standards ASTM's road and paving standards provide the specifications and test methods pertinent to the material, physical, mechanical, performance, and application requirements of road surfaces and pavements.

    Get Price Online
  • Asphalt Binder and Additives 2019 - clean word

    Asphalt Binder and Additives 2019 - clean word

    Jan 01, 2019 · the GTR particles, base binder, or the finished GTR modified asphalt binder to ensure specification compliance at any time. 401.2.1.1.1.2 Ground Tire Rubber in Open Graded Friction Course or SMA Mixtures Stabilizing fibers and fiber supply systems at the asphalt plant may not be necessary when the GTR binder is

    Get Price Online
  • Hot Mix Asphalt (HMA) for local agency applications | WSDOT

    Hot Mix Asphalt (HMA) for local agency applications | WSDOT

    Hot Mix Asphalt (HMA) is a combination of aggregate and asphalt binder mixed at an elevated temperature to form a hard, strong pavement construction material. HMA allows mixes to be designed in the laboratory at four different levels (50, 75, 100, and 125 gyrations) simulating four different 20-year traffic levels in the field.

    Get Price Online
  • 19 - Superpave bitumen Specifications - Constitution .

    19 - Superpave bitumen Specifications - Constitution .

    Proper selection of the asphalt binder to address these varying conditions is critical to good performance and the Superpave Asphalt Binder Specification was specifically developed to do just that. Asphalt binders are designated for PG (Performance Grade) and then the temperature ranges for which will be used, as an example PG 64-22.

    Get Price Online
  • Hot Mix Asphalts 101 - New Jersey

    Hot Mix Asphalts 101 - New Jersey

    Sources of Asphalt Binder • Asphalt occurs naturally or is obtained through distillation of petroleum crude oil. • Examples of natural asphalt include the binder in rock asphalt and Trinidad Lake asphalt. • More commonly, asphalt is obtained through distillation of crude oil.

    Get Price Online
  • Bending Beam Rheometer - Pavement Interactive

    Bending Beam Rheometer - Pavement Interactive

    Overview. The Bending Beam Rheometer (BBR) test (see Figure 1) provides a measure of low temperature stiffness and relaxation properties of asphalt binders. These parameters give an indication of an asphalt binder 's ability to resist low temperature cracking. The BBR is used in combination with the DTT to determine an asphalt binder's low temperature PG grade.

    Get Price Online
  • VDOT Mixes & Guidelines - vaasphalt

    VDOT Mixes & Guidelines - vaasphalt

    The ia Department of Transportation (VDOT) specifications, standards, and test methods have been the standard in ia for more than 50 years. During that time VDOT has changed their nomenclature for asphalt mixes several times, typically following a major rewrite of their asphalt specifications and mix design criteria.

    Get Price Online
  • US State Binder Specifications - Asphalt InstituteAsphalt .

    US State Binder Specifications - Asphalt InstituteAsphalt .

    The Asphalt Institute and PRI Asphalt Technologies have collaborated to develop this binder specification database. Available below (as downloadable pdf files) are individual documents for each of the 50 State highway agencies which summarize their respective asphalt binder specifications.

    Get Price Online
  • Superpave | Washington Asphalt Pavement Association

    Superpave | Washington Asphalt Pavement Association

    "Superpave" is an overarching term for the results of the asphalt research portion of the 1987 – 1993 Strategic Highway Research Program (SHRP). Superpave consists of (1) an asphalt binder specification, (2) an HMA mix design method and (3) HMA tests and performance prediction models.

    Get Price Online
  • PART V -- ASPHALTIC PAVEMENTS - LaDOTD

    PART V -- ASPHALTIC PAVEMENTS - LaDOTD

    (a) Asphalt Cement: The asphalt cement grades used shall be as specified in Table 502-2 using the design traffic load levels shown on the plans. If the asphalt cement does not comply with the requirements of Section 1002, mix production shall cease until proper asphalt material is supplied. Table 502-2 Superpave Asphalt Cement Usage

    Get Price Online
  • Development of Performance-Based Specification for Asphalt .

    Development of Performance-Based Specification for Asphalt .

    Jan 01, 2003 · Full-scale accelerated pavement testing and laboratory characterization tests on mixtures and binders provided the basis for the recommendations.The report documents a historical review of the development of asphalt binder performance specifications, experimental design, test pavement construction and performance, and statistical methodology to .

    Get Price Online
  • Multiple Stress Creep Recovery (MSCR): Binder Selection .

    Multiple Stress Creep Recovery (MSCR): Binder Selection .

    Lesson's learned with MSCR Challenges with JnrDiff The JnrDiff specification was designed to limit stress sensitivity Parameter has high variability (no spec tolerance) AMRL does not certify labs on this parameter Never properly evaluated for -34 binders In fall 2016, the Binder ETG created a task group to investigate Other CSBG DOT's have waived JnrDiff

    Get Price Online
  • SUPERPAVE BINDER SPECIFICATIONS & SELECTIONS

    SUPERPAVE BINDER SPECIFICATIONS & SELECTIONS

    Superpave Binder Specs & Selections 2 . Pavement Temperature, °C-20 20 60 135. Superpave Binder Specs & Selections 4 Superpave Asphalt Binder Specification The grading system is based on climate PG 64 - 22 Performance Grade Average 7-day max pavement temperature Min pavement temperature. Superpave Binder Specs & Selections 5

    Get Price Online
  • VDOT Mixes & Guidelines - vaasphalt

    VDOT Mixes & Guidelines - vaasphalt

    The ia Department of Transportation (VDOT) specifications, standards, and test methods have been the standard in ia for more than 50 years. During that time VDOT has changed their nomenclature for asphalt mixes several times, typically following a major rewrite of their asphalt specifications and mix design criteria.

    Get Price Online
  • Chapter 3 - Asphalt Binders | A Manual for Design of Hot .

    Chapter 3 - Asphalt Binders | A Manual for Design of Hot .

    There is also a Table 2 in AASHTO M 320 which uses the critical low cracking temperature from the direct tension test to determine the low- temperature grade of the binder. AASHTO M 320 Table 1 is the most commonly used specifica- tion for PG binders. 22 A Manual for Design of Hot Mix Asphalt with Commentary Figure 3-7. Sketch of BBR test.

    Get Price Online
  • Asphalt Supplier Certification Program | Caltrans

    Asphalt Supplier Certification Program | Caltrans

    If you have any questions about the information in these files, please call Albert Vasquez at (916) 227-7322. Please note that Caltrans projects may require additional acceptance criteria or modifications to asphalt binder specifications for project acceptance testing. Program Guidelines Document

    Get Price Online
  • IOWA DEPARTMENT OF TRANSPORTATION

    IOWA DEPARTMENT OF TRANSPORTATION

    The basic asphalt binder content is the historical, nominal mixture asphalt binder content, expressed as percent by weight (mass) of the asphalt binder in the total mixture. Apply the values in Table 2303.03-1, based on mixture size and type. 3. If the asphalt binder demand for the combination of aggregates submitted for an acceptable mix .

    Get Price Online