U.S. Department of Transportation
Federal Highway Administration
1200 New Jersey Avenue, SE
Washington, DC 20590
202-366-4000
Federal Highway Administration Research and Technology
Coordinating, Developing, and Delivering Highway Transportation Innovations
REPORT |
This report is an archived publication and may contain dated technical, contact, and link information |
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Publication Number: FHWA-HRT-11-070 Date: July 2012 |
Publication Number: FHWA-HRT-11-070 Date: July 2012 |
The problem statements in this track address economics and business management issues in concrete paving. The research outlined here will quantify the value and benefits of concrete pavements and ensure that an adequate delivery mechanism is in place to supplement the
low bid system. This track, when implemented, will help clarify the relationship between concrete pavements and economic issues, capital availability, risk and risk transfer, and alternative contracting.
The research in this track will develop the following:
The following introductory material summarizes the goal and objectives for this track and the gaps and challenges for its research program. A table is included to show an overview of the subtracks and problem statements in the track. A table of estimated costs provides the projected cost range for each problem statement, depending on the research priorities and scope determined in implementation. The problem statements, grouped into subtracks, follow.
The research in this track will clarify the relationship between concrete pavements and economic issues, capital availability, risk and risk transfer, and alternative contracting.
The track 11 objectives are as follows:
The track 11 research gaps are as follows:
The track 11 research challenges are as follows:
Table 59 shows the estimated costs for this research track.
Problem Statement | Estimated Cost | |
Subtrack 11-1. Concrete Pavement Research and Technology Management and Implementation | ||
11-1-1. The CP Road Map Research Management Plan Administrative Support Group | $8.5 million ($850,000/year) | |
11-1-2. Accelerated Evaluation and Implementation of Concrete Pavement Research and Technology | $5–$10 million (50 percent from public sector) |
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Subtrack 11-2. Concrete Pavement Economics and Life-Cycle Costs | ||
11-2-1. Achieving Sustainability with Concrete Pavements | $500,000–$750,000 | |
11-2-2. The Economic and Systemic Impacts of Concrete Pavement Mix-of-Fixes Strategies | $250,000–$500,000 | |
11-2-3. Advanced Concrete Pavement Life-Cycle Cost Methods that Include User Costs | $500,000–$1 million | |
11-2-4. Optimizing Concrete Pavement Life-Cycle Decisions | $1–$2 million | |
11-2-5. Concrete Pavement Economic Analysis Series | $500,000–$750,000 | |
Subtrack 11-3. Innovative Contracting and Incentives for Concrete Pavement Work | ||
11-3-1. Innovative Contracting Methods that Address Performance-Based Maintenance and Warranties | $750,000–$1 million | |
11-3-2. The Next Generation of Incentive-Based Concrete Pavement Construction Specifications | $1.25–$1.75 million | |
Subtrack 11-4. Technology Transfer and Publications for Concrete Pavement Best Practices | ||
11-4-1. Concrete Pavement Best Practices Manual | $750,000–1.25 million | |
11-4-2. Accelerated Technology Transfer and Rapid Education Programs for the Future Concrete Paving Workforce | $750,000–$1 million | |
11-4-3. Concrete Pavement Engineering Compendium | $500,000–$1 million | |
11-4-4. Concrete Pavement White Paper Series | $150,000–$200,000 | |
Total | $20.6–$30.7 million |
Track 11 problem statements are grouped into the following four subtracks:
Each subtrack is introduced by a brief summary of the subtrack’s focus and a table listing the titles, estimated costs, products, and benefits of each problem statement in the subtrack. The problem statements follow.
This subtrack provides the framework and funding for the CP Road Map Research Management Plan Administrative support group. This subtrack also assesses the successful Netherlands’ Roads to the Future program to develop an accelerated evaluation and implementation system for innovative concrete pavement technologies. The system will link long-term vision to short-term action. Table 60 provides an overview of this subtrack.
Problem Statement | Estimated Cost | Products | Benefits |
11-1-1. The CP Road Map Research Management Plan Administrative Support Group | $8.5 million ($850,000/year) | Not applicable. | Not applicable. |
11-1-2. Accelerated Evaluation and Implementation of Concrete Pavement Research and Technology | $5–$10 million (50 percent from public sector) | An innovative program for accelerated evaluation and implementation of concrete pavement research and technology to successfully meet future needs. | Innovative concrete pavement technologies and processes that will move from concept to field evaluation to implementation in a compressed period of time, future concrete pavement needs met for agency-owners, and an opportunity for contractors to innovate and generate new solutions to problems. |
The CP Road Map Research Management Plan outlines a progressive, cooperative approach to managing and conducting the CP Road Map research. Under this plan, organizations identify common interests, partner with each other in executing specific contracts, and produce and share a product that is greater than the sum of its parts.
The research management plan emphasizes scope control, research phasing, reporting, systems integration, voluntary peer review, maintenance of the research database, program-wide technology transfer, and assistance to organizations that want to leverage their funds and human resources. It outlines a four-tier system of participation and responsibility: an EAC, an administrative support group, track coordinators, and sustaining organizations.
A tri-party EAC, representing FHWA, State transportation departments, and industry, will provide broad oversight of CP Road Map. It will be a decisionmaking and policy-making facilitating group.
An administrative support group will provide professional management services for the EAC and, to a lesser degree, the research track coordinators. It will be the “doing” body for all coordinating and support activities, like maintaining the research database.
Research track coordinating teams will coordinate and oversee all activities within a specific research track.
Sustaining organizations (agencies, consultants, universities, professional associations, and other organizations that have specialized interests and skills and are interested in pooling earmarked or dedicated funds) will assume responsibility for conduct of research through cooperation, partnering, and funding agreements.
This problem statement represents the work and funding of the administrative support group.
Major technological advancements often take years to make it through the concept, research, demonstration, validation, and implementation stages before becoming part of practice. Highway agency-owners and the concrete paving industry cannot wait 10–15 years for the technologies and processes developed in the CP Road Map. A method is needed to accelerate the process of research and technology evaluation and implementation.
The successful Netherlands’ Roads to the Future program should be considered as a model for or as input into an accelerated concrete pavement research and technology evaluation and implementation program in the United States. The program is an innovative approach to developing and testing long-range solutions to future highway demands in a relatively short period of time. In the program, the highway agency, in cooperation with external partners, identifies future highway functional requirements in areas such as traffic expectations, environmental concerns, and pavement performance. Contractors are invited to offer solutions, no matter how unconventional, to the predefined highway functional requirements. Proposals are selected for field demonstration and evaluation within 2 years. In this way, long-term vision is linked to innovative short-term action. Technical advancements that previously might take 10–15 years are now made possible in 2–3 years.
This research will evaluate the Netherlands’ Roads to the Future model and develop a similar research and technology evaluation and implementation program to accelerate concrete pavement technology advancements in the United States.
The tasks include the following:
Benefits: Innovative concrete pavement technologies and processes that will move from concept to field evaluation to implementation in a compressed period of time, future concrete pavement needs met for agency-owners, and an opportunity for contractors to innovate and generate new solutions to problems.
Products: An innovative program for accelerated evaluation and implementation of concrete pavement research and technology to meet future needs successfully.
Implementation: This work will provide the mechanism for many concrete pavement technology innovations developed in the CP Road Map to be evaluated in the field and implemented at an accelerated rate.
This subtrack addresses the economics of concrete pavements, including macroeconomics analysis and whole life-cycle costs. Table 61 provides an overview of this subtrack.
Problem Statement | Estimated Cost | Products | Benefits |
11-2-1. Achieving Sustainability with Concrete Pavements | $500,000–$750,000 | Macroanalysis of whole life factors related to concrete pavements. | A study of the broader issues associated with cement, aggregate, construction, rehabilitation, and concrete pavement salvaging that allows policymakers and engineers to examine the full societal value of concrete pavements and recommend improvements. |
11-2-2. The Economic and Systemic Impacts of Concrete Pavement Mix-of-Fixes Strategies | $250,000–$500,000 | Advanced mix-of-fixes strategies that address a variety of performance and budget requirements and demonstration of the need to develop additional concrete pavement products that meet price and performance criteria. | Quantifications of a reasonable percentage of concrete pavement work with service life needs anywhere from 10–60 years. |
11-2-3. Advanced Concrete Pavement Life- Cycle Cost Methods that Include User Costs | $500,000– $1 million |
User cost factors that more accurately show value derived from smoothness, skid, noise, traffic shutdown, rolling resistance, and other factors associated with pavements. | More accurately and effectively determined user costs, as well as the ability for the owner to examine the interrelationships between product cost, performance, and user impact more accurately within the LCC framework and a more informed pavement selection decision. |
11-2-4. Optimizing Concrete Pavement Life-Cycle Decisions | $1–$2 million | All-in-one tool for optimizing material selection, structural and functional design, construction, preservation, rehabilitation, and user impacts, as well as a high-speed software program that integrates elements of the research from other tracks. | Better life-cycle decision tools. |
11-2-5. Concrete Pavement Economic Analysis Series | $500,000–$750,000 | Software and case studies that address microeconomic issues (engineering details such as tie-bars, and cement content) and macroeconomic issues (pavement selection types). | Engineers and managers who better understand the initial costs associated with engineering details as they relate to long-term performance and engineers and managers who understand the overall economics that link construction costs with different pavement options and performance requirements. |
Sustainable development is defined as development that meets present needs without compromising the ability of future generations to meet their own needs. Concrete pavements use products and processes that can offer a broad set of benefits and opportunities for a more sustainable environment. To understand these benefits, decisionmakers must understand how pavement structure can support the three pillars of sustainability: environmental, social, and economic benefits. Concrete pavements can improve air quality, reduce energy consumption and heat load, manage storm water, reduce raw material consumption, increase the use of industrial waste and byproducts as replacement material, and increase the durability and longevity of the pavement structure itself. This research will identify and substantiate the roles concrete pavements play in sustainable development and develop a sustainability model protocol that the U.S. highway community can use to assess future product changes.
The tasks include the following:
Benefits: A study of the broader issues associated with cement, aggregate, construction, rehabilitation, and concrete pavement salvaging that allows policymakers and engineers to examine the full societal value of concrete pavements and recommend improvements.
Products: Macroanalysis of whole-life factors related to concrete pavements.
Implementation: The whole-life sustainability analysis resulting from this research will be made available and useful through technology transfer workshops and publications.
The mix-of-fixes concept, developed by MDOT, identifies a family of renewal solutions for pavements and bridges that can be incorporated into capital improvement projects. These solutions vary in cost and expected service life. Relative costs could vary greatly per square unit of work, while service life could vary from 3 to 5 years for surface treatments and thin overlays to 50 years or more for total reconstruction. Generally, a longer desired service life (one that minimizes downstream project traffic disruptions) requires a higher initial cost. However, while MDOT recognizes the need for the mix of fixes, it also recognizes the limited effectiveness of certain preservation strategies. The need for accelerated renewal and minimal disruption does not necessarily mark all infrastructure elements within a corridor for total reconstruction, replacement, and longest life solutions. How, then, can mix-of-fixes options be applied cost effectively while minimizing both current and downstream disruption?
The tasks include the following:
Benefits: Quantifications of a reasonable percentage of concrete pavement work with service life needs anywhere from 10 to 60 years.
Products: Advanced mix-of-fixes strategies that address a variety of performance and budget requirements; demonstration of the need to develop additional concrete pavement products that meet price and performance criteria.
Implementation: The analysis of economic and systemic impacts of mix-of-fixes strategies resulting from this research will be made available and useful through technology transfer activities.
Advanced methods for developing concrete pavement life-cycle costs are needed. These methods should include user costs.
The tasks include the following:
Benefits: More accurately and effectively determined user costs and the ability for the
owner to examine the interrelationships between product cost and performance. User impact more accurately within the life-cycle cost framework and a more informed pavement selection decision.
Products: User cost factors that more accurately show value derived from smoothness, skid, noise, traffic shutdown, rolling resistance, and other factors associated with pavements.
Implementation: The new user cost methodologies will update the life-cycle cost procedures developed under FHWA Demonstration Project 115, Probabilistic Life-Cycle Cost Analysis in Pavement Design, that are now incorporated in the MEPDG.(14,1)
A tool is needed for optimizing concrete pavement life-cycle decisions. The tool should be all inclusive and integrate elements of related ongoing research.
The tasks include the following:
Benefits: Better life-cycle decision tools.
Products: All-in-one tool for optimizing material selection, structural and functional design, construction, preservation, rehabilitation, and user impacts and a high-speed software program that integrates elements of the research from other tracks.
Implementation: Related research from other tracks will be integrated into a software program that will provide necessary life-cycle data. The life-cycle decision tools generated from this research will be shared through technology transfer.
Though economic factors are crucial for concrete pavement design and construction, researchers often have only a loose sense of costs, usually initial or life-cycle costs as well as one or two ingredients. Concrete pavement solutions normally have high initial costs that are returned with a lower life-cycle cost. Additionally, engineers develop ideas and technologies to improve concrete pavement performance with little knowledge about the overall cost impacts. Two elements of the cost issue need to be considered.
The first element is the microeconomic determinations that estimate the impact of various engineering details on overall pavement price and performance. ACPA has done this kind of estimate, looking at the cost implications of individual items such as longitudinal tie-bars, drainable bases, and cement content in relation to a standard design. The research in this problem statement will develop a more robust model that more accurately determines the impact of the engineering details including new and innovative details, on materials, labor, and equipment costs.
The second element is the macroeconomic determinations that estimate the cost-to-performance relationship for various concrete pavement solutions, comparing them to each other as well as to other pavement types. This element includes the economics of long life pavement solutions, short life solutions such as UTW, rehabilitation using recycled materials from the existing pavement, the impacts of traffic on costs, warranty and insurance issues, and foundation selection.
The tasks include the following:
Benefits: Engineers and managers who better understand the initial costs associated with engineering details as they relate to long-term performance and engineers and managers who understand the overall economics that link construction costs with different pavement options and performance requirements.
Products: Software and case studies that address microeconomic issues (engineering details such as tie-bars and cement content) and macroeconomic issues (pavement selection types).
Implementation: The economic analysis software and case studies resulting from this research will be made available through technology transfer efforts.
This subtrack addresses innovative contracting approaches including performance-based and incentive-based contracting. Table 62 provides an overview of this subtrack.
Problem Statement | Estimated Cost | Products | Benefits |
11-3-1. Innovative Contracting Methods that Address Performance-Based Maintenance and Warranties | $750,000– $1 million |
An innovative contracting manual with background information, contract methodologies, and specific language that will address design build, best value, cost + time (A+B) warranties, and performance-based maintenance contracting. | Contracting methods that account for the slightly higher initial costs, lower life-cycle costs, and different maintenance and rehabilitation options for concrete pavements compared to asphalt pavements, as well as a manual that will help decisionmakers integrate the design, procurement, maintenance, and warranties into packages that resolve these issues and develop consensus with the industry to provide the services. |
11-3-2. The Next Generation of Incentive-Based Concrete Pavement Construction Specifications | $1.25– $1.75 million |
A manual of innovative incentives for concrete pavements that will move beyond the current A+B, lane rental, and smoothness incentives and focus on such issues as total pavement structure, advanced surface characteristics, functional issues, traffic management, and cost + time + quality (A+B+Q). | A new series of incentives that will significantly improve pavement attributes, such as noise or skid, and the overall concrete pavement product allowing contractors who pay attention to detail, workmanship, and sound planning to distinguish themselves from those producing borderline work and the first new incentive-based specifications to emerge since the early 1990s. |
This research will organize, evaluate, and further implement alternative contracting mechanisms to accommodate a greater variety of contracting methods for specific concrete pavement applications. Many States are exploring contracting options that might accelerate project completion time, reduce overall costs, improve quality, and reward contractors for exceptional performance. However, inherent risks are associated with any new contracting procedure. Fully understanding and evaluating different options and applying those that will most benefit the States is important. The ways in which various alternative contracting strategies can be used effectively in concrete pavement technology must be determined. Risk sharing or transfer as a result of these strategies must also be quantified between the State highway agencies and the concrete paving industry. Performance-based maintenance and warranties will be addressed.
The tasks include the following:
Benefits: Contracting methods that account for the slightly higher initial costs, lower life-cycle costs, and different maintenance and rehabilitation options that concrete pavements have compared to asphalt pavements as well as a manual that will help decisionmakers integrate the design, procurement, maintenance, and warranties into packages that resolve these issues and develop consensus with the industry to provide the services.
Products: An innovative contracting manual with background information, contract methodologies, and specific language that will address design build, best value, A+B, warranties, and performance-based maintenance contracting.
Implementation: This research will result in experimental projects and an innovative contracting manual.
Since the mid-1980s, incentives (e.g., A+B contracting and lane-by-lane rental) have been used in highway construction to optimize attributes such as construction time management and pavement strength and smoothness. Benefits include a noticeable improvement in concrete pavement smoothness. However, the state of the art has not advanced beyond the current incentives. For example, many experts call for an incentive for overall concrete pavement quality rather than for one or two attributes. Quality becomes an even larger issue in A+B contracting where speed is sometimes thought to compromise quality. This research addresses construction incentives, proposing innovative new ideas, developing guide language, and organizing experimental projects. The new incentives will allow contractors who pay attention to detail, workmanship, and sound planning to distinguish themselves from those producing borderline work.
The tasks include the following:
Benefits: A new series of incentives that will significantly improve pavement attributes, such as noise or skid, and the overall concrete pavement product allowing contractors who pay attention to detail, workmanship, and sound planning to distinguish themselves from those producing borderline work. The first new incentive-based specifications to emerge since the early 1990s.
Products: A manual of innovative incentives for concrete pavements that will move beyond the current A+B, lane rental, and smoothness incentives and focus on such issues as total pavement structure, advanced surface characteristics, functional issues, traffic management, and A+B+Q.
Implementation: This project will result in standard specifications for a new generation of incentives.
This subtrack addresses technology transfer efforts beyond those identified in the other tracks in the CP Road Map. The educational and training work identified here (best practices manual, workforce education programs, engineering compendium, and white paper series) will be conducted in coordination with other problem statements as appropriate. Table 63 provides an overview of this subtrack.
Problem Statement | Estimated Cost | Products | Benefits |
11-4-1. Concrete Pavement Best Practices Manual | $750,000–$1.25 million | A national compilation of concrete pavement best practices for design, construction, materials, and maintenance. | Continuously defined best practice, allowing the concrete paving industry to keep pace with innovation that has moved into practice and offering incentives for doing work in a certain way, as well as a community unified around consensus. |
11-4-2. Accelerated Technology Transfer and Rapid Education Programs for the Future Concrete Paving Workforce | $750,000– $1 million |
An innovative technology transfer program with new methods and procedures for advancing concrete pavement industry technology quickly and efficiently and an innovative way for identifying and educating the workforce that addresses new technology, new workers on current technology, and reinforcement training. | A new approach to technology transfer that will help the industry reduce its current 15-year timeframe dramatically in evaluating and accepting new products, helping entrepreneurs develop and share new ideas and technologies. |
11-4-3. Concrete Pavement Engineering Compendium | $500,000– $1 million |
A concrete pavement engineering compendium and library of key historical engineering source documents. | A book that will provide a solid history of concrete pavement research and decisionmaking that clearly shows the fundamental decisions made and a resource document for the next generation of concrete pavement engineers and researchers who will build on this knowledge as they advance toward full-scale mechanistic approaches. |
11-4-4. Concrete Pavement White Paper Series | $150,000–$200,000 | A concrete pavement white paper series that provides a framework for entrepreneurs and innovators within government, industry, and academia to organize their thoughts and create discussion about new concepts, products, and methodologies within the industry. | A white paper program that will call attention to ideas, help educate the concrete paving industry about important policy and technical issues, and implement critical strategies more quickly. |
Many variables complicate the chemistry of concrete pavement mixtures, including multiple aggregate and cement sources, different pavement characteristics required for different situations, and numerous and sometimes incompatible mineral and chemical admixtures. Construction variables such as weather, mix delivery times, finishing practices, and pavement opening schedules further complicate mixtures. However, mixture materials, mix design, and pavement construction are not isolated steps in the road building process. All affect and are affected by the others in ways that determine overall concrete pavement durability and long-term performance. Therefore, optimizing pavement performance requires an integrated systems approach to designing and building pavements.
Significant research advancements have been made in concrete mixture materials and design as well as in construction technologies and practice. However, actual field practice has not kept pace. A resource is needed to help engineers, QC personnel, contractors, suppliers, technicians, and trades people appreciate new technologies, tests, and practices that can identify materials or concrete properties and construction practices that lead to premature pavement distress. The resource is also needed so researchers can learn to implement these technologies, tests, and practices in the field and access how-to and troubleshooting information quickly.
The tasks include the following:
Benefits: Continuously defined best practice, allowing the concrete paving industry to keep pace with innovation that has moved into practice and offering incentives for doing work in a certain way. Other benefits include a community unified around consensus.
Products: A national compilation of concrete pavement best practices for design, construction, materials, and maintenance.
Implementation: The concrete pavement best practices resulting from this research will be implemented through technology transfer.
Concrete pavement technology transfer in the United States can take up to 15 years from introduction to adoption. The concrete pavement industry can cite many case studies to support this timeframe and could make a case for one even longer. This length of time discourages investment in the industry and frustrates those trying to invest. The many barriers include State border issues, lack of State highway agency experience and resources, method specifications, and highly variable local practices and customs, to name a few. This research will develop accelerated technology transfer and rapid education programs with a high certainty of success.
The tasks include the following:
Benefits: A new approach to technology transfer that will help the industry dramatically reduce its current 15-year timeframe in evaluating and accepting new products, which helps entrepreneurs develop and share new ideas and technologies.
Products: An innovative technology transfer program with new methods and procedures for advancing concrete pavement industry technology quickly and efficiently as well as an innovative way for identifying and educating the workforce that addresses new technology, new workers on current technology, and reinforcement training.
Implementation: The technology transfer program resulting from this work will include the necessary mechanisms for its own implementation.
Much of the principle research for current concrete pavement design was done more than 80 years ago. Pioneer work from that time is still the basis of the knowledge used by today’s engineers. However, while many of the original researchers have passed away and many more are retiring from active work, the community has not organized their work, gathered the original manuscripts, or prepared an all-inclusive concrete pavement engineering manual. A small group of civil engineers recently outlined a potential manual that would contain at least 56 technical chapters. That same group identified nearly 900 base documents that capture elements of concrete pavement engineering principles. The next generation stands to lose an enormous amount of history. Because no single library contains original works, these documents are often difficult to find. With the advent of mechanistic designs, many mechanistic design principles require a working knowledge of these base principles. This work will compile a comprehensive concrete pavement engineering compendium.
The tasks include the following:
Benefits: A book that will provide a solid history of concrete pavement research and decisionmaking, clearly showing the fundamental decisions made and a resource document for the next generation of concrete pavement engineers and researchers who will build off this knowledge as they advance towards full-scale mechanistic approaches.
Products: A concrete pavement engineering compendium and library of key historical engineering source documents.
Implementation: The results of this research will be made available through distribution and marketing of the concrete pavement engineering compendium.
A white paper is a brief government report that typically argues a specific position or solution to a problem. They have become a common tool for introducing technological innovations and products. For the concrete pavement industry, a white paper program can serve several functions. First, white papers can educate a reader using unbiased, authoritative, neutral, and factual information on any topic from policy to highly technical subjects. White papers also describe a position that a company or organization can take as a leader in concrete pavement technology. Finally, white papers can help key decisionmakers and influence peddlers by using data and facts to justify implementing solutions.
The intent of the research is to allow entrepreneurs to organize new ideas, provide a vehicle for calling attention to these ideas, develop a consensus opinion, and eventually lead to informed decisions about research, implementation, policy, or training.
The tasks include the following:
Benefits: A white paper program that will call attention to ideas, help educate the concrete paving industry about important policy and technical issues, and more quickly implement critical strategies.
Products: A concrete pavement white paper series that provides a framework for entrepreneurs and innovators within government, industry, and academia to organize their thoughts and create discussion about new concepts, products, and methodologies within the industry.
Implementation: The results of this research will be made available through distribution and marketing of the concrete pavement white series.