CALL US

+86 17838360708

asphalt binder txdot

asphalt binder txdot

Asphalt Binder - Texas Department of Transportation

The asphalt binder lab tests around 500 supplier Quality Monitoring (QM) samples and district project samples every month. The asphalt binder test results summary dashboard provides an overall summary of all samples tested organized by supplier, material grade, date sampled, date tested, batch, reference sample, and a pass/fail indicator.

get price

Asphalt Binders - ftp.dot.state.tx.us

supply asphalt binders for use on TxDOT projects. Producers on this list must still provide current TxDOT lab numbers indicating preapproval of specific products with all shipments (this information is also available inSiteManager). For more information, contact MTD’s Flexible Pavements Section at (512) 506 -5147. Pre-Qualified Asphalt Binders

get price

Pavement Manual: Performance Graded Binders (PG Binders)

The Superpave binder specifications are performance-based; therefore, these binders are known as performance-graded (PG) binders in contrast to the older system of viscosity graded (AC) binders, which are typically used for surface treatments and aggregate precoating (see Item 300). Generally speaking, any paving mix produced hot through a hot ...

get price

Asphalt Binder Quality Program

ASPHALT BINDER QUALITY PROGRAM TXDOT DESIGNATION: TEX-545-C MATERIALS AND TESTS DIVISION 2 2019– 7 EFFECTIVE DATE: SEPTEMBER 2.1.2 Terminals or storage facilities are considered the suppliers of all materials they ship to Department projects, even if the binders are originally from other approved sources.

get price

PG Binder Selection - ftp.dot.state.tx.us

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 Fatigue Cracking Higher Performing PG 64-22 PG 70-22 PG 76-22 64-16 28-22 70 25-28 76 22. Modified Binders z‘PG-Plus’ binders zElastic recovery requirement

get price

Pavement Manual: Hot-Mix Asphalt Pavement Mixtures

Anchor: #i1013899 Section 6: Hot-Mix Asphalt Pavement Mixtures Anchor: #i1013905 6.1 General. Hot-mix asphalt (HMA) is a generic term that includes many different types of mixtures of aggregate and asphalt cement (binder) produced at elevated temperatures (generally between 300-350ºF) in an asphalt

get price

TxDOT Specifications

Nov 15, 2006  REFERENCE ITEMS (210), (300), (301), (320), (520), (585) Go to Top. 341 - DENSE GRADED HOT MIX ASPHALT (QCQA) SPECIFICATION REQUIREMENTS 1) Specify the type and grade of Performance Grade (PG) asphalt binder on the set of plans. 2) If different aggregate quality requirements (listed in Table 1) are desired, specify on the set of plans. 3) Specify the surface

get price

Seal Coat and Surface Treatment Manual: Selection of Binder

The bituminous binders used for seal coats and surface treatments should conform to TxDOT Standard Specification Item 300, Asphalts, Oils, and Emulsions. Table 3-1 from Item 300 shows typical uses for different types of bituminous binders. ... Heating asphalt binder

get price

PG Binder Selection - ftp.dot.state.tx.us

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 Fatigue Cracking Higher Performing PG 64-22 PG 70-22 PG 76-22 64-16 28-22 70 25-28 76 22. Modified Binders z‘PG-Plus’ binders zElastic recovery requirement

get price

Seal Coat and Surface Treatment Manual: Binder and ...

Chapter 4: Binder and Aggregate Application Rates Anchor: #i1002234 Section 1: Modified Kearby Design Method Anchor: #i1002239 General. The design method described in this section is based on a modification of the original Kearby method and was first recommended to TxDOT by Texas Transportation Institute in 1981 (Epps et al., 1981).

get price

TxDOT Specifications

Nov 15, 2006  REFERENCE ITEMS (210), (300), (301), (320), (520), (585) Go to Top. 341 - DENSE GRADED HOT MIX ASPHALT (QCQA) SPECIFICATION REQUIREMENTS 1) Specify the type and grade of Performance Grade (PG) asphalt binder on the set of plans. 2) If different aggregate quality requirements (listed in Table 1) are desired, specify on the set of plans. 3) Specify the surface

get price

Section 3: Transversely Varying Asphalt Rates

Anchor: #i1015335 Section 3: Transversely Varying Asphalt Rates Anchor: #i1028853 General. Transverse variation of asphalt rate (TVAR) is the seal coat practice of varying the amount of asphalt being applied across the width of the pavement to better match the asphalt

get price

Materials Forms - Texas Department of Transportation

Asphalt Binder G*/SIN and Data Tabulation: 2088: Surface Aggregate Selection Form (WWARP) 2148: Certification of Compliance (Treated Timber Products) 2174: Inspectors Batch Plant Checklist: 2181: Worksheet for Dimensional Check for Metal Slump Cone (Without Base) and Tamping Rod: 2192: Forensics Investigation Request: 2227: Optimized Aggregate ...

get price

Material Producer List - Texas Department of Transportation

Sep 14, 2020  Asphalt Binders: 06/06/21: Asphalt Interlayer (Tracking Resistant) 09/07/20: Asphalt Release Agents: 05/27/21: Asphaltic Concrete Patching Material (Stockpile Storage or Bagged) 04/27/21: Asphaltic Concrete Patching Material, Rapid-Curing (Containerized) 11/10/14: Barrier Reflectors: 07/14/21: Bituminous Marker Adhesive: 03/26/21: Bridge ...

get price

Materials Information - Texas Department of Transportation

The Construction Division performs inspection and testing and provides oversight for contract administration.

get price

Texas Asphalt Pavement User Guide

The asphalt binder should suit the climatic and traffic conditions, and the aggregates need to be selected and blended to achieve the desired gradation and quality characteristics. It is important to understand the weight-volume relationships between the asphalt binder, the aggregate, and the mixture as these are keys to good design.

get price

A Performance-Graded Binder Specification for Surface ...

Traditional specifications for asphalt binders failed to ... The Texas Department of Transportation (TxDOT) defines a surface treatment as a single, double, or triple application of asphaltic material, each covered with aggregate, constructed on existing pavement or on a prepared base course (1). For this study, researchers used the term

get price

2021 Initial Idea Development - dot.state.mn.us

TxDOT Project 0-7062 synthesis on recycled binder availability including a national survey, TxDOT Project to refine Balanced Mix Design (BMD) for high RAM mixtures, and NAPA QIP 131 contractor guidelines for using recycling agents in asphalt mixtures.

get price

Fingerprinting Asphalt: New Handheld Testing Device ...

Ensuring that asphalt binders don’t contain too many contaminates can be key to ensuring a longer-lasting roadway. The Texas Department of Transportation (TxDOT) is implementing use of an innovative technology in a new test method and updated specifications developed during a two-year study conducted by the Materials and Pavements Division of the Texas AM Transportation Institute

get price

Jorge PROZZI University of Texas at Austin, TX UT ...

Asphalt extraction and recovery are essential steps before characterizing components and properties of aged asphalt binders for recycling the reclaimed asphalt pavement (RAP).

get price

Guia de Aplicacion Del Manual en Portugal PDF Road ...

For asphalt layers, it requires the aggregate gradation, the characteristics of the asphalt binder, the reference temperature, the Poisson’s ratio, the effective binder content, the air voids, the total unit weight and the thermal properties.

get price

TxDOT Specifications - 2014 English Special Specifications ...

Injection of Latex into Asphalt Binder - Provides a quality assurance mechanism for binder produced by injection of latex at the point of use. This requires a detailed binder design, reporting of metered volumes and inventories, and jobsite sampling. (2004 SS3214) Optional for all projects beginning with the September 2010 letting. Statewide Use.

get price

Revised Statewide Asphalt Binder Selection Catalog

The Texas Department of Transportation (TxDOT) currently selects asphalt binder PG grade for any pavement in Texas involves two major phases. The first phase of this method involves selecting the high and low temperature PGs of asphalt binder based on the location of the project and the desired level of confidence (i.e., 95 or 98 percent ...

get price

A Performance-Graded Binder Specification for Surface ...

Traditional specifications for asphalt binders failed to ... The Texas Department of Transportation (TxDOT) defines a surface treatment as a single, double, or triple application of asphaltic material, each covered with aggregate, constructed on existing pavement or on a prepared base course (1). For this study, researchers used the term

get price

Compacting Bituminous Specimens Using the Superpave ...

COMPACTING BITUMINOUS SPECIMENS USING THE SUPERPAVE GYRATORY COMPACTOR (SGC) TXDOT DESIGNATION: TEX-241-F MATERIALS AND TESTS DIVISION 6 – 7 EFFECTIVE DATE: JULY 2019-JUNE 2021 Note 10 —When the mixture appears dry and lacking asphalt, lower the N des value to increase the optimum asphalt content of the mixture. 8.1.2 Following oven curing,

get price

Fingerprinting Asphalt: New Handheld Testing Device ...

Ensuring that asphalt binders don’t contain too many contaminates can be key to ensuring a longer-lasting roadway. The Texas Department of Transportation (TxDOT) is implementing use of an innovative technology in a new test method and updated specifications developed during a two-year study conducted by the Materials and Pavements Division of the Texas AM Transportation Institute

get price

My35 Central Texas Newsletter: Fingerprinting Asphalt: New ...

Concern that contaminants in recycled engine-oil products might be affecting the binders in asphalt led TxDOT to contract a two-year study of the problem by the Texas AM Transportation Institute (TTI). Ryan Barborak, TxDOT's flexible pavements section director, was a key participant on the research team.

get price

Chip Seal Quality Construction

Modified (CRM) asphalt binder (henceforth referred t o as asphalt rubber binder) for hot-applied chip seals. TxDOT specifies AC-5, AC-10, AC-5 with 2% polymer, AC-15P, AC-15-5TR and Asphalt Rubber (AR) types AR-II and AR-III binders. Emulsions specified include HFRS-2, MS-2, CRS-2, CRS-2h, HFRS-2P and CRS-2P. For cool weather conditions, TxDOT

get price

Asphalt Mix Design - FPA

VMA (TxDOT definition) TxDOT includes the volume of the absorbed binder in the calculation of VMA. Therefore, more absorptive aggregates inherently produce higher VMA and vice versa. *TxDOT VMA minimums are 1% higher than AASHTO, which mitigates the issue to some degree. V mb V a VMA V b Aggregate Air AC Absorbed AC

get price

Further Development for Binder Quality Assurance Program

Supplementary Notes: Project performed in cooperation with the Texas Department of Transportation and the Federal Highway Administration. 16. Abstract: The current TxDOT binder QC/QA system uses two asphalt binder supplier categories; suppliers who have an approved quality control plan (QCP) on file with TxDOT and those who do not.

get price

Asphalt Binder Basics - NDLTAP

Asphalt Binder Properties 12 Liquid Semi-Solid Temperature Asphalt is a thermoplastic material that softens as it is heated and hardens when cooled. MS-2 Section 2.1.1-15 25 60 135 Consistency varies with hard temperature soft pen vis vis A B C Temperature, º C Historic Specifications - Shortcomings 13.

get price

2021 Initial Idea Development - dot.state.mn.us

TxDOT Project 0-7062 synthesis on recycled binder availability including a national survey, TxDOT Project to refine Balanced Mix Design (BMD) for high RAM mixtures, and NAPA QIP 131 contractor guidelines for using recycling agents in asphalt mixtures.

get price

Texas Asphalt Pavement Association (TXAPA)

Asphalt Binder Inspection and Sampling Guidance. Item 320 Equipment for Asphalt Concrete Pavement. Specification 3076 Asphalt Binder Sampling. Material Inspection Guide. Special Provision to Item 300 Asphalts, Oils, and Emulsions. Sampling Bituminous Materials,

get price

TXAPA Asphalt Education Series

Understanding a TxDOT’s inspector’s roles and responsibilities in enforcing contract documents. Compliance with TxDOT’s Inspector Development Program Module 11 – Hot Mix Asphalt Pavements and Permeable Friction Course requirements. Identifying Materials (Aggregate and Binder) and Mix Design types for use on specific projects.

get price

TxDOT Specifications for RAP and RAS Eiffel Trading

TxDOT Specifications for RAP and RAS. Aggregates are materials such as sand, gravel, and crushed stone that are used to make concrete. RAP is a type of aggregate made of asphalt pavement that has been salvaged, milled, broken or crushed. RAS is a type of aggregate made from processed asphalt shingle material from manufacturing of asphalt ...

get price