Pavement Materials And Design Mcq

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Kristin Banyas

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Aug 3, 2024, 1:42:35 PM8/3/24

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TC APD marks the initial step toward the independence of the paving industry on natural and fossil-based raw materials. Former TC 279-WMR participants and partners from the industry, road authorities, and research institutions have acknowledged the need for such a research effort with an approach that would eventually eliminate the discrimination between conventional, secondary, and alternative materials. The proposed TC APD will build upon the extensive and pioneering contributions of TC 279-WMR with the specific objective of advancing the research on design and performance related to the incorporation of APMs. The new TC APD emphasizes its distinctive and innovative aspects compared to TC 279-WMR, specifically:

A comprehensive review of the current performance-engineered design solution for paving materials.
Development of performance-engineered design procedures for paving composites containing APMs.
An organized set of information on the field performance of existing paving mixtures containing APMs.
Possible new testing cells designed with APMs paving composites.
A first approach to support state and national transportation agencies and authorities in the design process of paving composites designed with APMs.

Outcomes/products of TC:
- Thematic issue/Papers in Materials and Structures on the activity of the TC/TGs.
- RILEM recommendations on the performance-engineered design procedures for paving composites containing APMs and initial field performance evaluation.
- Data set on the past and existing field experience with paving composites containing APMs
- Short courses and web-based training modules to be used as educational and implementation tools by academia, industry, and highway agencies.

Organization of Events and Publication:

M&S

RILEM Technical Letters

The demand for incorporating APMs into paving composites has increased considerably over the years at the research and application level, as demonstrated by the TC 279-WMR research. While this goes toward the circularity of resources, it also requires a solid approach with scientific bases. The availability of natural and fossil-based resources is limited; therefore, the need for achieving performance in the laboratory and field with alternative solutions is urgent. Dedicated performance-engineered approaches are needed at the design and field evaluation levels to successfully incorporate APMs into paving composites for durable, long-lasting roads.

Dr. Farshidi serves as the project manager for pavement and bridge capital improvement projects team at the City of San Jose, infrastructure management group. He has over 10 years of pavement engineering experience including pavement design and evaluation, material characterization, and training in the state of California. At City of San Jose, he is in charge of planning, designing, and delivering pavement maintenance and rehabilitation projects for approximately 6,000 lane miles of pavements. Previously, Frank served as the principal researcher on multiple Caltrans and federally-funded projects including warm mix asphalt, rubberized asphalt binder, and performance-related specification development for pavement projects. Frank is also an adjunct lecturer at San Jose State University department of civil and environmental engineering.

Mr. Guada serves as the Laboratory and Field Operations Manager at the University of California Pavement Research Center (UCPRC), Berkeley. He supervises the nationally accredited laboratory specializing in pavement materials testing for highways, ports, and airfields. As project manager and engineer for statewide implementation and research projects, Irwin has led and conducted numerous field investigations to sample materials, conduct feasibility analyses, and monitor and inspect construction projects. A professional civil engineer with 20 years of laboratory, construction, maintenance, and design experience, his recent work includes surface characterization of concrete pavements for noise, friction, and texture. Irwin has lectured at San Jose State University, presented at national conferences, and been published in several peer reviewed journals.

Dr. Signore has over 25 years of experience in the pavement field. He specializes in pavement design and evaluation, rehabilitation and maintenance, materials assessment, and training. At NCE, he provides pavement engineering consulting to numerous clients including California local agencies and San Francisco Internal Airport. He currently manages NCE's On-Call pavement engineering contract with Caltrans. His former Caltrans work, while at the UCPRC, UC Berkeley included involvement with the development of Superpave mix designs, next generation mechanistic pavement design, and long life AC performance projects. He has published and presented at the Transportation Research Board Meeting and at many professional conferences. He has taught at San Jose State University and for the National Highway Institute and continues to teach for ASCE.

This manual provides background information pertaining to pavement design. It also includes guidance for performing pavement surveys, preparation of design recommendations, and submittal of the Materials Design Recommendations (MDR) Report (formerly called the Soils Letter). It is based on past MnDOT experience, the experience of other groups and agencies with similar requirements, and the current state of the practice in pavement engineering.

Construction R&D seeks to develop construction management, specifications, and other technologies to ensure that finished construction projects meet the intent of the design. This work includes evaluating the effects on pavement performance of construction processes, procedures and specifications, and pavement repair and rehabilitation.

Pavement management R&D provides tools and technologies to help agencies understand the condition and performance of the pavement network and make sound decisions concerning investments to preserve and improve the system.

Surface characteristics R&D provides tools, technologies, and guidance to enable optimization of pavement surface characteristics from a standpoint of safety (frictional characteristics), user satisfaction (ride quality), and noise generation.

Environmental stewardship and sustainability research provides tools and technologies to enable appropriate consideration of the short and long-term environmental implications of pavement engineering decisions, and support expanded use of recycled, reused, and marginal materials in highway pavement construction without detriment to long-term performance.

As sustainability is a system characteristic that encompasses economic, environmental, and social dimensions, pavement sustainability is necessarily one of the highest-level considerations for a transportation infrastructure system and not just an added feature. This paper reviews the sustainability prospects of pavements, in regard to materials, design, and preservation strategies looking closely at the international experience and practice. Specifically, a wide range of options and alternatives with an emphasis on mechanical properties, concerning sustainable pavement materials, is presented. As for pavement design, a detailed description of structural requirements and key features, in terms of sustainability, is given, while innovative design options and cross sections of fundamental types of pavements, capable of integrating significant amounts of sustainable materials are presented. Additionally, the importance of preservation, in respect of pavement sustainability, is highlighted and the impact of the use-phase as well as the aims of sustainable preservation strategies are described, including also a full overview of preservation and rehabilitation treatments. In conclusion, considering the relative sources and cited literature, there is broadly a great potential for sustainable options and solutions, which can be effectively materialized. Nevertheless, further investigation field and adoption of sustainability standards are potentially promising considerations, from the perspective of future improvement.

Federal Highway Administration's (FHWA's) pavement and materials research and development (R&D) is concerned with all aspects of highway pavement engineering and management, including: long-term performance; structural design; material testing, evaluation, specification; mixture design and optimization for both traditional and innovative materials; performance evaluation and prediction; construction; life-cycle cost analysis; and the environmental and sustainability aspects and implications of highway pavements.

FHWA's pavement and materials R&D provides technologies and solutions to advance the state of the practice in highway pavement engineering. FHWA's pavement and materials research is carried out as an integral part of FHWA's broader Infrastructure Research and Technology (R&T) Program. Accordingly, it contributes to agency-wide efforts to achieve Infrastructure R&T goals and strategic objectives.

To achieve these goals and objectives, the Office of Infrastructure R&D's three pavement teams conduct and manage research encompassing the elements needed to enable an integrated, comprehensive, performance-based approach to managing highway pavement infrastructure. This includes: structural design and performance analysis; material testing, evaluation and specification for traditional, recycled/reused, and innovative materials; long-term performance; construction technologies; monitoring and assessment of both structural and functional performance; preservation and life-cycle cost analysis.