design of txdot asphalt mixtures using the superpave gyratory compacto

Design of TxDOT Asphalt Mixtures Using the Superpave ...

the Superpave gyratory compactor (SGC) as a modern, technologically advanced tool for design of hot mix asphalt (HMA) paving mixtures and for preparation …

Design of TxDOT Asphalt Mixtures Using the Superpave ...

Design of TxDOT Asphalt Mixtures Using the Superpave Gyratory Compactor The primary objective of this project was to develop laboratory protocols for using the Superpave gyratory compactor (SGC) in place of the Texas gyratory compactor (TGC) to design essentially all of the Texas Department of Transportation (TxDOT) dense-graded hot mix asphalt (HMA) paving mixtures.

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Pavement Manual: Hot-Mix Asphalt Pavement Mixtures

6.2 HMA Mix Design. For the case of a dense-graded mixture designed using the Texas Gyratory Compactor (TGC), once optimum asphalt cement is determined, new samples are molded to 93% theoretical maximum density in the Superpave Gyratory Compactor (SGC)...

Superpave Mix Design and Gyratory Compaction Levels

In addition the newdesign system introduced aggregate and binder requirements andmixture compactive effort tied to traffic. Currentlythe Superpave mixture design system is the predominately usedsystem in the US. Sinceits introduction many miles of roadway, using the Superpave system have been placed across the country.

TxDOT HMA Mix Design (Final) Flashcards | Quizlet

Start studying TxDOT HMA Mix Design (Final). Learn vocabulary, terms, and more with flashcards, games, and other study tools. ... TxDOT has both the Texas Gyratory and Superpave Gyratory Compactors. ... -determine optimum asphalt content-mixture evaluation. What are the major components of material selection?

Transitioning from Texas gyratory compactor to superpave ...

Since the widely accepted SGC was designed to produce specimens similar to actual pavement layers and since the current series of Texas Department of Transportation (TxDOT) HMA paving mixtures have demonstrated acceptable performance, TxDOT wished to replace the Texas gyratory compactor (TGC) with the SGC for the design of its current repertoire of dense-graded mixtures.

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Chapter 37 Tex-241-F, Superpave Gyratory Compacting …

hot mix asphalt (HMA) using the Superpave gyratory compactor. This procedure is used to prepare specimens for determining the mechanical and volumetric properties of HMA.

Compacting Bituminous Specimens Using the Superpave ...

COMPACTING BITUMINOUS SPECIMENS USING THE SUPERPAVE. GYRATORY COMPACTOR (SGC) TXDOT DESIGNATION: TEX-241-F CONSTRUCTION DIVISION 5 – 8 EFFECTIVE DATE: DECEMBER 2015. 6.3 Plant-Produced Mixtures: 6.3.1 Sample the plant-produced mixture in accordance with Tex-222-F. 6.3.2 Split the mixture into the appropriate sample size.

SUPERPAVE VOLUMETRIC MIXTURE DESIGN AND …

performance tes ting. Laboratory compaction is accomplished using a Superpave Gyratory Compactor (SGC). While the primary purpose of SGC is to compact test specimens, it can provide valuable information about the compact ibility of the particular mixture by capturing data during compaction. The SGC can be used to design mixtures that do not exhibit

Superpave Mix Design - Pavement Interactive

Superpave History

Superpave Gyratory Compactors - Home | Federal …

use in asphalt pavement materials selection, mixture design, testing, construction and quality control. Office of Pavement Technology FHWA Ͳ HIF Ͳ 11 Ͳ 032 December 2010 SUPERPAVE GYRATORY COMPACTORS This Technical Brief provides an overview of the gyratory issues that affects the performance of asphalt pavements. Background

SUBJECT: HOT MIX ASPHALT (HMA) MIXTURE DESIGN …

Characteristics in Uncompacted Asphalt Mixtures. 26. AASHTO T 312 - Standard Method of Test for Preparing and Determining the Density of Asphalt Mixture Specimens by Means of the Superpave Gyratory Compactor. 27. AASHTO T 316 - Standard Method of Test for Viscosity Determination of Asphalt Binder Using Rotational Viscometer. 28.

TxDOT HMA Mix Design (Final) Flashcards | Quizlet

TxDOT HMA Mix Design (Final) by Excel; requires inputting of: sieve analysis for each sieve, aggregate specific gravities, theoretical maximum specific gravity (Gr), percent density (Ga), and asphalt content (%); plots properties to ensure they satisfy specifications; aids in the selection of optimum asphalt content; prepares data in standard format for submittal.

SUPERPAVE MIXTURE DESIGN GUIDE - Home | Federal …

However, the existing Superpave design system does not properly address perform-ance prediction testing on mixture samples or decision-making during the design process. This guide will address both of these areas. Superpave Mixture Design Compaction Level Determination Prior to 1999, the design ES ALs shown in the Gyratory Compaction Criteria ...

Preparing and Determining the Density of Bituminous ...

1.1 This standard covers the compaction of 150 mm diameter and 100 mm diameter test specimens of hot mix asphalt (HMA) using the Superpave gyratory compactor. 1.2 The values stated in SI units are to be regarded as the standard. 1.3 This standard may involve hazardous materials, operations, and …

Chapter 37 Tex-241-F, Superpave Gyratory Compacting …

Chapter 37 — Tex-241-F, Superpave Gyratory Compacting of Test Specimens of Bituminous Mixtures Section 2 — Apparatus 200-F, Bituminous Test Procedures 37-4 08/99 – 01/05 • The ram heads shall stay perpendicular to its axis. • The platen side of …

Superpave and Texas Gyratory Compactors: How Do …

Superpave Center (SCSC), in cooperation with TxDOT, to address this issue. At present, the static creep test for designing CMHB mixes is conducted on 100-mm specimens compacted with a Texas gyratory compactor. Specimens for Superpave mix design are produced using a Superpave gyratory compactor and measure 150 mm in diameter. The current study ...

SUPERPAVE VOLUMETRIC MIXTURE DESIGN AND …

asphalt mixtures for airfield pavements. The primary features of Marshall mix design are a density/voids analysis and the stability/flow test. Prior to Superpave, Marshall mix design was widely used in the United States, and is by far, the most commonly used asphalt mixture design procedure worldwide.

Superpave Method - Pavement Interactive

In the Superpave method, this step can be broken up into 4 substeps: Prepare several initial samples, usually two at the proposed design asphalt content, two at 0.5 percent below the design asphalt content and two at 0.5 percent above the design asphalt content. Compact these trial mixes in the Superpave Gyratory Compactor (see Figures 1, 2 and 3).

Superpave (Gyratory Mix Design) Discussion

Superpave (Gyratory Mix Design) Discussion. In 1987, the Strategic Highway Research Program (SHRP) began developing a new system for specifying asphaltic materials. The final product of the SHRP asphalt research program is a new system called Superpave, which is …

SUBJECT: HOT MIX ASPHALT (HMA) MIXTURE DESIGN …

The purpose of the HMA mixture design system is to design HMA mixtures that achieve the fundamental volumetric properties needed to result in maximum pavement performance. It is extremely important that the plant quality control procedures outlined in the Producer …

COMPARISON BETWEEN MARSHALL AND …

The design asphalt binder content is established at 4.0 percent air voids, and the other mixture properties are checked. SUPERPAVE GYRATORY COMPACTOR In order to use Superpave system in the comparison process in asphalt mixture, a Locally Superpave Gyratory Compactor has been manufactured to assist in the preparation of the

Superpave Gyratory Compactors - Home | Federal …

commonly assumed that gyratory compactors in which the gyration angle, speed of gyration, and applied pressure are properly calibrated will produce hot mix asphalt specimens having similar volumetric properties. In recent years, however, this basic assumption of the equivalency of properly calibrated compactors has been called into question.

Development of Criteria for Using the Superpave Gyratory ...

The Superpave design method provides a kneading action to compact the mixture under constant strain conditions. Design of asphalt mixtures for airfields has been successfully accomplished using the Marshall method since the 1940s. The Superpave design method was developed and adopted by state departments of transportation beginning in the mid-1990s.

Tex-204-F, Design of Bituminous Mixtures - ftp.txdot.gov

Tex-204-F, Design of Bituminous Mixtures Section 3 — Part I, Mix Design for Dense-Graded Hot-Mix Asphalt Mixtures Using the Texas Gyratory Compactor (TGC) by Weight. Texas Department of Transportation 9 12/04–02/08. Typical Mix Design Example by Weight. The following provides an example of a mix design by weight.

Tex-241-F, Superpave Gyratory Compacting of Test …

Tex-241-F, Superpave Gyratory Compacting of Test Specimens of Bituminous Mixtures Section 4 — Preparations Texas Department of Transportation 7 TxDOT 11/2005 Preparing Sample Step Action 8 Place a compaction mold base plate and top plate in an oven at the selected compaction temperature from Step 3, 60 ±15 min. before compaction.