402 Hot Mix Asphalt Pavements (HMA)

Moisture Sensitivity of Hot Mix Asphalt (HMA) Mixtures in Nebraska -Phase II 7. Authorls Ingryd Pinto, Y ongrak Kim, and Hoki Ban 9. Performing Organization Name and Address University of Nebraska-Lincoln W351 NH, PO Box 880531 Lincoln, NE 68588 12. Sponsoring Organization Name and Address Nebraska Department of Roads 1500 Hwy. 2 Lincoln, NE

SECTION 402 - HOT MIX ASPHALT (HMA) PAVEMENTS February New York State Department of Transportation 402-3 Construction Inspection Manual I. HMA PRE-PAVE MEETING (§402-3) A. PURPOSE The purpose of the Pre-pave meeting is to have a "round table" discussion with all parties involved.

Asphalt Cement 702.01 Aggregates for HMA Pavement 703.07 RAP for HMA Pavement 703.08 HMA Mixture Composition 703.09 401.03 Composition of Mixtures The Contractor shall compose the Hot Mix Asphalt Pavement with aggregate, Performance Graded Asphalt Binder (PGAB), and mineral filler if required. HMA shall be designed and tested

Paving Cost Comparisons: Warm-Mix Asphalt Versus Concrete Key Findings Concrete pavement enjoys both an initial and life cycle cost advantage over HMA as well as the most cost effective WMA case for many roadways. WMA production uses less fuel than hot-mix asphalt (HMA): With temperature reductions of up to 100°F, burner fuel consumption can be reduced by up to 50 percent of HMA

Stripping is moisture damage to old hot mix asphalt (HMA) layers, which are often buried several inches down in the pavement structure. Certain aggregates, such as gravels, are known more susceptible to stripping. While the current generations of asphalt mixtures often use

Gradation and Size. The particle size distribution, or gradation, of an aggregate is one of the most influential aggregate characteristics in determining how it will perform as a pavement material. In HMA, gradation helps determine almost every important property including stiffness, stability, durability, permeability, workability, fatigue

Placement. Mix laydown involves everything used to place the delivered HMA on the desired surface at the desired thickness. The asphalt paver is the principal machine involved in mix laydown and is assisted by the material transfer vehicle (MTV) in some instances. Figure 1: Asphalt Paver. Figure 2: HMA Placement.

Construction of Quality Hot Mix Asphalt Pavements Understanding the Paver Factors Affecting the Screed Head of material Paving speed Screed adjustments Mix design Temperatures • Mix • Air • Grade • Too much material, screed forced to rise • Correct amount of material, screed remains level •

Subsection 402: Dense Graded Crushed Stone for Sub-Base . Subsection 460: Hot Mix Asphalt Pavement for Local Streets .

The trial project included a one-mile trial section of hot-mix asphalt pavement constructed using steel slag aggregate as a replacement for 20 percent of the coarse aggregate in the HMA. The trial section was part of a project that improved five miles of SR 203 by grinding out the existing pavement and replacing it with new pavement.

and grade, meeting grade of other adjacent pavements and structures, etc. The most difficult part of designing hot mix asphalt overlays for flexible pavements is the determination of the properties of the existing pavement. Subgrade and subbase properties can be measured by conducting NDT. The subgrade and subbase must be at the equilibrium

Asphalt Pavements contains the proceedings of the International Conference on Asphalt Pavements (Raleigh, North Carolina, USA, 1-5 June ), and discusses recent advances in theory and practice in asphalt materials and pavements. The contributions cover a wide range of topics:- Environmental protection and socio-economic impacts- Additives and mo

Mar 03,  · This paper summarizes the literature review as well as the documented use and performance of airfield pavements that used reclaimed asphalt pavement (RAP) in hot-mix asphalt (HMA). A review of in-service airfield pavements with RAP-containing HMA mixes was conducted as part of this study.

Design, construction, and early performance of hot-mix asphalt stabilizer and modifier test sections. [PDF - 1.55 MB] Published Date:

Jan 22,  · in Stone Matrix Asphalt (SMA). Therefore, the last sentence of of Subsection 703.06.1.2 on page 614 in the 2004 Mississippi Standard Specifications that reads “Fly ash shall not be used in hot mix asphalt pavements” is not applicable for Stone Matrix Asphalt (SMA). 8

for improving the prediction of fatigue in aged hot-mix asphalt (HMA) surfaces. This is important for projecting airfield maintenance funding and predicting the performance of operating surfaces in a theater of operation. There has been little previous work done on predicting the remaining fatigue life of existing pavements.