Author: Thomas BennertPublisher:
ISBN:
Category : Asphalt
Languages : en
Pages : 84
Book Description
Dynamic Modulus of Hot Mix Asphalt
Author: Thomas BennertPublisher:
ISBN:
Category : Asphalt
Languages : en
Pages : 84
Book Description
Standard Method of Test for Determining Dynamic Modulus of Hot Mix Asphalt (HMA).
Author: American Association of State Highway and Transportation OfficialsPublisher:
ISBN:
Category : Asphalt
Languages : en
Pages : 36
Book Description
Superpave Mix Design
Author: Asphalt InstitutePublisher:
ISBN: 9781934154175
Category : Asphalt
Languages : en
Pages : 102
Book Description
An Investigation Into Dynamic Modulus of Hot-mix Asphalt and Its Contributing Factors
Author: A Manual for Design of Hot Mix Asphalt with Commentary
Author: Publisher: Transportation Research Board
ISBN: 0309155649
Category : Asphalt concrete
Languages : en
Pages : 285
Book Description
Characterizing and Predicting Dynamic Modulus of Hot-mix Asphalt for Mechanistic-empirical Design Guide
Author: Nam Hoai TranPublisher:
ISBN:
Category : Asphalt concrete
Languages : en
Pages : 768
Book Description
Performance Tests for Hot Mix Asphalt (HMA) Including Fundamental and Empirical Procedures
Author: Louay Nadhim MohammadPublisher: ASTM International
ISBN: 0803134959
Category : Anisotropy
Languages : en
Pages : 216
Book Description
Development of New Dynamic Modulus (E*) Predictive Models for Hot Mix Asphalt Mixtures
Author: Maryam Sadat Sakhaei FarPublisher:
ISBN:
Category :
Languages : en
Pages : 276
Book Description
Resilient Modulus and the Fatigue Properties of Kansas Hot Mix Asphalt Mixes
Author: Stefan A. RomanoschiPublisher:
ISBN:
Category : Asphalt concrete
Languages : en
Pages : 146
Book Description
This research study aimed to determine the dynamic modulus, bending stiffness and fatigue properties of four representative Superpave Hot Mix Asphalt (HMA) mixtures used in the construction of base layers of Kansas flexible pavements and to compare the measured values with those predicted by the National Cooperative Highway Research Program (NCHRP) Design Guide. To achieve these objectives, asphalt concrete beams were tested in third point-bending at constant strain, at four temperatures and four levels of strain. Dynamic resilient modulus tests were performed on asphalt cylindrical specimens at five temperatures and five loading frequencies. Multi-linear regression analysis was performed to develop a linear relationship between the bending stiffness and the fatigue life for the asphalt mixes tested.
Determination of the In-place Hot-mix Asphalt Layer Modulus for Rehabilitation Projects Using a Mechanistic-empirical Procedure
Author: Amara LouliziPublisher:
ISBN:
Category : Pavements, Asphalt
Languages : en
Pages : 32
Book Description
This project evaluated the procedures proposed by the Mechanistic-Empirical Pavement Design Guide (MEPDG) to characterize existing hot-mix asphalt (HMA) layers for rehabilitation purposes. Thirty-three cores were extracted from nine sites in Virginia to measure their dynamic moduli in the lab. Falling-weight deflectometer (FWD) testing was performed at the sites because the backcalculated moduli are needed for the Level 1 procedure. The resilient modulus was also measured in the lab because it is needed for the Level 2 procedure. A visual pavement rating was performed based on pavement condition because it is needed for the Level 3 procedure. The selected cores were tested for their bulk densities (Gmb) using the AASHTO T166 procedure and then for their dynamic modulus in accordance with the AASHTO TP62-03 standard test method. Then the cores were broken down and tested for their maximum theoretical specific gravity (Gmm) using the AASHTO T-209 procedure. Finally an ignition test was performed to find the percentage of binder and to reclaim the aggregate for gradation analysis. Volumetric properties were then calculated and used as input for the Witczak dynamic modulus prediction equations to find what the MEPDG calls the undamaged master curve of the HMA layer. The FWD data, resilient modulus data, and pavement rating were used to find the damaged master curve of the HMA layer as suggested for input Levels 1, 2, and 3, respectively. It was found that the resilient modulus data needed for a Level 2 type of analysis do not represent the entire HMA layer thickness, and therefore it was recommended that this analysis should not be performed by VDOT when implementing the design guide. The use of Level 1 data is recommended because FWD testing appears to be the only procedure investigated that can measure the overall condition of the entire HMA layer.