The document discusses unsaturated water flow in pavements. It aims to understand how water moves through pavement structures, how long it remains, and what factors control moisture conditions. It compares saturated versus unsaturated flow, and notes unsaturated flow is slower. It describes using actual pavement geometries and material properties in a finite element model to calibrate predictions of water content from sensors to observed field data. The model is adjusted based on precipitation data and material densities to improve prediction accuracy at different sensor locations within the pavement structure.
Using MEPDG to Develop Rational Pay Factor for Hot Mix Asphalt ConstructionIOSR Journals
Most highway agencies are using subjective measures to rate the quality of construction projects. The main purposes of rating the contractor performance are for qualification, bidding, or payment schedules. The pay factor (PF) can be defined as a multiplication factor that is often used to determine the contractor pay for the unit of work. The objective of this paper is to propose a rational methodology for defining PF based on basic understanding of the effect of different hot mix asphalt parameters on pavement life. Mechanistic-Empirical Pavement Design Guide (MEPDG) software is used to find the effect of different variables on pavement life. Three main factors considered in pay factor equation for their effect on pavement life:air voids, asphalt content, and percent passing sieve # 200 (P200). The pavement lifebased on the fatigue and rutting failure criteriaare used in the PF model to reflect actual contractor performance.The developed PF model was implemented on a case study.
The Mitchell Block is a LEED Gold urban, infill redevelopment project that implemented multiple sustainable site and low-impact development strategies. Innovative stormwater techniques include rain gardens, bio-retention tree filter, and permeable pavers.
As with our other presentations, feel free to contact us for high-resolution original files with slide transitions, etc.
This document discusses different types of pollution including air, water, noise, land, and radioactive pollution. It defines each type of pollution, discusses their causes and effects, and provides suggestions for prevention. The document shares information through text and images to raise awareness about various forms of pollution and their impacts on the environment.
Development of Windows-Based Version of the 3D-Move Analysis Software for Pav...nitharsanr
The document outlines the development of a windows-based graphical user interface version of the 3D-Move software for pavement response analysis. Key features of the new software include the ability to model complex loading conditions from databases, generate asphalt mixture master curves from lab data, and output results in graphical and tabular formats. The new version aims to improve usability and running time compared to the original DOS-based version. Recommendations for future work include optimization of material models, inclusion of additional vehicle types, and modeling of pavement stresses under non-uniform loading conditions.
This document summarizes information presented by Jay Hansen of the National Asphalt Pavement Association (NAPA) on asphalt industry trends and policy issues. It provides an overview of asphalt production levels in the US from 2002-2012, outlines provisions and funding levels under the MAP-21 transportation bill, and discusses challenges around long-term funding and implementation of MAP-21, including pavement performance metrics and promotion of new technologies. It also identifies grassroots advocacy targets in Congress and outlines NAPA's battle plan for engagement.
The document summarizes the Cermak/Blue Island Sustainable Streetscape project in Chicago. The project aims to create a more sustainable streetscape through strategies like permeable pavements, bioswales, LED lighting, and expanding tree cover to reduce urban heat island effect. It also discusses monitoring various sustainability metrics and engaging the community through education. The streetscape integrates designs for stormwater management, energy efficiency, air quality, and more to demonstrate sustainable infrastructure.
The document discusses unsaturated water flow in pavements. It aims to understand how water moves through pavement structures, how long it remains, and what factors control moisture conditions. It compares saturated versus unsaturated flow, and notes unsaturated flow is slower. It describes using actual pavement geometries and material properties in a finite element model to calibrate predictions of water content from sensors to observed field data. The model is adjusted based on precipitation data and material densities to improve prediction accuracy at different sensor locations within the pavement structure.
Using MEPDG to Develop Rational Pay Factor for Hot Mix Asphalt ConstructionIOSR Journals
Most highway agencies are using subjective measures to rate the quality of construction projects. The main purposes of rating the contractor performance are for qualification, bidding, or payment schedules. The pay factor (PF) can be defined as a multiplication factor that is often used to determine the contractor pay for the unit of work. The objective of this paper is to propose a rational methodology for defining PF based on basic understanding of the effect of different hot mix asphalt parameters on pavement life. Mechanistic-Empirical Pavement Design Guide (MEPDG) software is used to find the effect of different variables on pavement life. Three main factors considered in pay factor equation for their effect on pavement life:air voids, asphalt content, and percent passing sieve # 200 (P200). The pavement lifebased on the fatigue and rutting failure criteriaare used in the PF model to reflect actual contractor performance.The developed PF model was implemented on a case study.
The Mitchell Block is a LEED Gold urban, infill redevelopment project that implemented multiple sustainable site and low-impact development strategies. Innovative stormwater techniques include rain gardens, bio-retention tree filter, and permeable pavers.
As with our other presentations, feel free to contact us for high-resolution original files with slide transitions, etc.
This document discusses different types of pollution including air, water, noise, land, and radioactive pollution. It defines each type of pollution, discusses their causes and effects, and provides suggestions for prevention. The document shares information through text and images to raise awareness about various forms of pollution and their impacts on the environment.
Development of Windows-Based Version of the 3D-Move Analysis Software for Pav...nitharsanr
The document outlines the development of a windows-based graphical user interface version of the 3D-Move software for pavement response analysis. Key features of the new software include the ability to model complex loading conditions from databases, generate asphalt mixture master curves from lab data, and output results in graphical and tabular formats. The new version aims to improve usability and running time compared to the original DOS-based version. Recommendations for future work include optimization of material models, inclusion of additional vehicle types, and modeling of pavement stresses under non-uniform loading conditions.
This document summarizes information presented by Jay Hansen of the National Asphalt Pavement Association (NAPA) on asphalt industry trends and policy issues. It provides an overview of asphalt production levels in the US from 2002-2012, outlines provisions and funding levels under the MAP-21 transportation bill, and discusses challenges around long-term funding and implementation of MAP-21, including pavement performance metrics and promotion of new technologies. It also identifies grassroots advocacy targets in Congress and outlines NAPA's battle plan for engagement.
The document summarizes the Cermak/Blue Island Sustainable Streetscape project in Chicago. The project aims to create a more sustainable streetscape through strategies like permeable pavements, bioswales, LED lighting, and expanding tree cover to reduce urban heat island effect. It also discusses monitoring various sustainability metrics and engaging the community through education. The streetscape integrates designs for stormwater management, energy efficiency, air quality, and more to demonstrate sustainable infrastructure.
Permeable pavement allows stormwater runoff to filter through voids in the pavement into an underlying stone reservoir, where it is temporarily stored or infiltrated. There are various permeable pavement surfaces like pervious concrete and porous asphalt. The major design goals are maximizing nutrient removal and runoff reduction. Design considerations include soil infiltration rates, structural loading capacity, and reservoir layer sizing. Proper construction and long-term maintenance like periodic vacuum sweeping are required to prevent surface clogging and ensure effective performance.
1. Analyze the ki data for Materials A and B to identify trends between dry, optimum and wet conditions
2. Develop MR prediction models for each material as a function of moisture content using the ki data
3. Validate the models against additional test data to confirm their accuracy in predicting MR values
Managing Stormwater in the Hudson Valley: A Cost-Benefit Analysis of Permeabl...Libby Zemaitis
Stormwater management is a priority in New York State that is gaining attention due to increased intense precipitation from climate change and increased urban development. The state has adopted stricter regulations that are driving the adoption of green infrastructure. Municipalities, schools, and private firms are already installing permeable pavement in the Hudson Valley, but there is a lack of robust, unbiased economic analyses of the technology found in the peer-reviewed literature. This thesis uses existing models and empirical studies to create a cost-benefit analysis model for permeable pavement in the Hudson Valley. The model estimates the five primary costs and benefits of permeable pavement as outlined in the literature: installation cost, operating and maintenance cost, runoff reduction benefit, pollutant removal benefit, and deicing reduction benefit. The initial analysis of a hypothetical one-acre permeable parking lot yielded a significant positive net present value. Despite various weaknesses, this model is a significant improvement on previous models in a new amalgam of more singular and unbiased studies of permeable pavement. Future work could include a transformation of this model into user-friendly online tool for prospective adopters to better understand the balance of costs and benefits of permeable pavement in the Hudson Valley and beyond.
(Final Master's Thesis accepted for Bard College M.S. in Climate Science and Policy)
S60 mb proper_20_pccp_20design_20details_20for_20performance_20__20road_20sch...R C Patil Patil
This document discusses design considerations for concrete pavements for streets and local roads. It covers topics such as thickness design procedures, concrete quality, subgrade and subbase design, jointing design, and the use of software like StreetPave for mechanistic-empirical thickness design and life-cycle cost analysis of concrete versus asphalt pavements. The document provides guidance on inputs for pavement design like traffic levels, strength properties of concrete, subgrade support, and recommendations for thickness based on these factors.
This document summarizes the low impact development design approach used for improvements at Siesta Beach Park in Sarasota, Florida. The goals were to improve aesthetics, environmental quality, and stormwater management. Features included new restrooms, landscaping, permeable parking areas with underground storage and infiltration, bioswales, and water quality treatment with an ultraviolet disinfection system. The $21.5 million project met its goals of enhancing the park while protecting water quality with sustainable stormwater infrastructure.
Assessment Of Permeable Pavement In High Volume Urban Floodingrlucera
The document discusses the monitoring and modeling of a permeable pavement parking lot project. Monitoring of rainfall and runoff from the permeable pavers and a traditional pavement area found that the pavers reduced runoff by 31% for a small storm and 11% for a larger storm. Predictive modeling estimated that for a 100-year storm, the pavers could reduce peak flows by 34-55% and volume by similar amounts, with greater reductions for smaller storms. Optimizing storage space and incorporating off-site runoff controls could further increase performance during large storms.
This document provides the final report of a permeable surface stormwater management feasibility study for the Wonderland Power Centre site in London, Ontario. It analyzes the existing site conditions, stormwater management system, and various permeable surface options. Scenarios evaluating different levels of permeable surface coverage are modeled to determine potential reductions in stormwater runoff and storage volume needs. Financial analyses of capital and lifetime costs are also provided for different surface types. The report concludes permeable surfaces can provide significant runoff reductions and are financially feasible options for new developments or redevelopment projects.
Urban Water Quality Issues - Green Design & Developmentnacaa
The document discusses green design and development which aims to minimize environmental impacts through practices like reducing impervious surfaces, preserving open spaces, and using low impact development (LID) approaches to better manage stormwater runoff. It provides examples of specific LID techniques like bioretention cells, permeable pavements, vegetated swales, and green roofs that can be integrated into site planning and building design. The goals are to protect water resources by maintaining natural hydrologic functions and reducing flooding, pollution, and development costs.
This document discusses sources of traffic noise and methods to reduce it. It explains that tire-pavement noise becomes the dominant source at higher speeds. Various pavement materials and designs are discussed that can lower noise, such as porous asphalt, gap-graded stone matrix, and asphalt rubber friction courses. Noise barriers are also described as an effective way to reduce noise levels reaching nearby areas. The conclusion emphasizes the importance of implementing quieter pavement techniques to achieve safer and quieter highways.
The document discusses sustainable design techniques including vegetated roofs, rainwater harvesting, bioretention, permeable pavements, and how utilizing multiple techniques can achieve sustainable synergy. It provides details on the components, design considerations, and benefits of each technique. It also presents a case study comparing the cost and stormwater management of a conventional versus low impact development approach.
RainScapes Manual Montgomery County MD Department of Environmental ProtectionAnn English
This manual, first published in 2012, covers a variety of techniques to reduce stormwater runoff from private property using RainScapes. Rain Gardens, Conservation Landscaping, Green Roofs, Canopy Trees, Water Harvesting, Permeable Pavement, Pavement Removal and Dry Wells are all RainScapes that can be installed at home or on other private property to reduce stormwater runoff close to the source.
Permeable Paving: A New Tool for Sustainable Site DevelopmentTom Barrett
Permeable paving is a transformative approach to sustainable site development.
Permeable hard surface construction is part of a continuing series of engineering solutions to water management that protects, restores, and mimics the natural water cycle.
Permeable paving is an efficient solution for stormwater runoff. It will reduce flooding, increase water infiltration, recharge groundwater and improve water quality.
Improving the Performance of Recycled Aggregate Pervious Concrete via Cement ...Patrick Barnhouse, E.I.T
A preliminary study of high porosity pervious concrete for non-pavement applications. Also discussed is the feasibility of including recycled aggregate and the photocatalyst titanium dioxide in the mix design.
An artificial Neural Network (ANN) is an efficient approach for solving a variety of tasks using teaching methods and sample data on the principal of training. With proper training, ANN are capable of generalizing and recognizing similarity among different input patterns.The main problem in using ANN is parameter setting, because there is no definite and explicit method to select optimal parameters of the ANN. There are a number pf parameters that must be decided upon like number of layers, number of neurons per layer, number of training iteration, number of samples etc...
Contractor Awareness Training Above Ground Facilities Part 2 2016Fairfax County
This document provides an overview of a stormwater maintenance awareness training presented by the Maintenance and Stormwater Management Division (MSMD) of the Fairfax County Department of Public Works and Environmental Services. The training covers the history of stormwater regulations and management, common stormwater best management practices (SWM/BMPs) such as infiltration trenches and permeable pavement, potential deficiencies in these facilities, and recommended remedies. The document includes pictures of properly functioning and deficient examples of various above-ground SWM/BMPs and discusses maintenance issues and solutions.
Permeable pavement allows stormwater runoff to filter through voids in the pavement into an underlying stone reservoir, where it is temporarily stored or infiltrated. There are various permeable pavement surfaces like pervious concrete and porous asphalt. The major design goals are maximizing nutrient removal and runoff reduction. Design considerations include soil infiltration rates, structural loading capacity, and reservoir layer sizing. Proper construction and long-term maintenance like periodic vacuum sweeping are required to prevent surface clogging and ensure effective performance.
1. Analyze the ki data for Materials A and B to identify trends between dry, optimum and wet conditions
2. Develop MR prediction models for each material as a function of moisture content using the ki data
3. Validate the models against additional test data to confirm their accuracy in predicting MR values
Managing Stormwater in the Hudson Valley: A Cost-Benefit Analysis of Permeabl...Libby Zemaitis
Stormwater management is a priority in New York State that is gaining attention due to increased intense precipitation from climate change and increased urban development. The state has adopted stricter regulations that are driving the adoption of green infrastructure. Municipalities, schools, and private firms are already installing permeable pavement in the Hudson Valley, but there is a lack of robust, unbiased economic analyses of the technology found in the peer-reviewed literature. This thesis uses existing models and empirical studies to create a cost-benefit analysis model for permeable pavement in the Hudson Valley. The model estimates the five primary costs and benefits of permeable pavement as outlined in the literature: installation cost, operating and maintenance cost, runoff reduction benefit, pollutant removal benefit, and deicing reduction benefit. The initial analysis of a hypothetical one-acre permeable parking lot yielded a significant positive net present value. Despite various weaknesses, this model is a significant improvement on previous models in a new amalgam of more singular and unbiased studies of permeable pavement. Future work could include a transformation of this model into user-friendly online tool for prospective adopters to better understand the balance of costs and benefits of permeable pavement in the Hudson Valley and beyond.
(Final Master's Thesis accepted for Bard College M.S. in Climate Science and Policy)
S60 mb proper_20_pccp_20design_20details_20for_20performance_20__20road_20sch...R C Patil Patil
This document discusses design considerations for concrete pavements for streets and local roads. It covers topics such as thickness design procedures, concrete quality, subgrade and subbase design, jointing design, and the use of software like StreetPave for mechanistic-empirical thickness design and life-cycle cost analysis of concrete versus asphalt pavements. The document provides guidance on inputs for pavement design like traffic levels, strength properties of concrete, subgrade support, and recommendations for thickness based on these factors.
This document summarizes the low impact development design approach used for improvements at Siesta Beach Park in Sarasota, Florida. The goals were to improve aesthetics, environmental quality, and stormwater management. Features included new restrooms, landscaping, permeable parking areas with underground storage and infiltration, bioswales, and water quality treatment with an ultraviolet disinfection system. The $21.5 million project met its goals of enhancing the park while protecting water quality with sustainable stormwater infrastructure.
Assessment Of Permeable Pavement In High Volume Urban Floodingrlucera
The document discusses the monitoring and modeling of a permeable pavement parking lot project. Monitoring of rainfall and runoff from the permeable pavers and a traditional pavement area found that the pavers reduced runoff by 31% for a small storm and 11% for a larger storm. Predictive modeling estimated that for a 100-year storm, the pavers could reduce peak flows by 34-55% and volume by similar amounts, with greater reductions for smaller storms. Optimizing storage space and incorporating off-site runoff controls could further increase performance during large storms.
This document provides the final report of a permeable surface stormwater management feasibility study for the Wonderland Power Centre site in London, Ontario. It analyzes the existing site conditions, stormwater management system, and various permeable surface options. Scenarios evaluating different levels of permeable surface coverage are modeled to determine potential reductions in stormwater runoff and storage volume needs. Financial analyses of capital and lifetime costs are also provided for different surface types. The report concludes permeable surfaces can provide significant runoff reductions and are financially feasible options for new developments or redevelopment projects.
Urban Water Quality Issues - Green Design & Developmentnacaa
The document discusses green design and development which aims to minimize environmental impacts through practices like reducing impervious surfaces, preserving open spaces, and using low impact development (LID) approaches to better manage stormwater runoff. It provides examples of specific LID techniques like bioretention cells, permeable pavements, vegetated swales, and green roofs that can be integrated into site planning and building design. The goals are to protect water resources by maintaining natural hydrologic functions and reducing flooding, pollution, and development costs.
This document discusses sources of traffic noise and methods to reduce it. It explains that tire-pavement noise becomes the dominant source at higher speeds. Various pavement materials and designs are discussed that can lower noise, such as porous asphalt, gap-graded stone matrix, and asphalt rubber friction courses. Noise barriers are also described as an effective way to reduce noise levels reaching nearby areas. The conclusion emphasizes the importance of implementing quieter pavement techniques to achieve safer and quieter highways.
The document discusses sustainable design techniques including vegetated roofs, rainwater harvesting, bioretention, permeable pavements, and how utilizing multiple techniques can achieve sustainable synergy. It provides details on the components, design considerations, and benefits of each technique. It also presents a case study comparing the cost and stormwater management of a conventional versus low impact development approach.
RainScapes Manual Montgomery County MD Department of Environmental ProtectionAnn English
This manual, first published in 2012, covers a variety of techniques to reduce stormwater runoff from private property using RainScapes. Rain Gardens, Conservation Landscaping, Green Roofs, Canopy Trees, Water Harvesting, Permeable Pavement, Pavement Removal and Dry Wells are all RainScapes that can be installed at home or on other private property to reduce stormwater runoff close to the source.
Permeable Paving: A New Tool for Sustainable Site DevelopmentTom Barrett
Permeable paving is a transformative approach to sustainable site development.
Permeable hard surface construction is part of a continuing series of engineering solutions to water management that protects, restores, and mimics the natural water cycle.
Permeable paving is an efficient solution for stormwater runoff. It will reduce flooding, increase water infiltration, recharge groundwater and improve water quality.
Improving the Performance of Recycled Aggregate Pervious Concrete via Cement ...Patrick Barnhouse, E.I.T
A preliminary study of high porosity pervious concrete for non-pavement applications. Also discussed is the feasibility of including recycled aggregate and the photocatalyst titanium dioxide in the mix design.
An artificial Neural Network (ANN) is an efficient approach for solving a variety of tasks using teaching methods and sample data on the principal of training. With proper training, ANN are capable of generalizing and recognizing similarity among different input patterns.The main problem in using ANN is parameter setting, because there is no definite and explicit method to select optimal parameters of the ANN. There are a number pf parameters that must be decided upon like number of layers, number of neurons per layer, number of training iteration, number of samples etc...
Contractor Awareness Training Above Ground Facilities Part 2 2016Fairfax County
This document provides an overview of a stormwater maintenance awareness training presented by the Maintenance and Stormwater Management Division (MSMD) of the Fairfax County Department of Public Works and Environmental Services. The training covers the history of stormwater regulations and management, common stormwater best management practices (SWM/BMPs) such as infiltration trenches and permeable pavement, potential deficiencies in these facilities, and recommended remedies. The document includes pictures of properly functioning and deficient examples of various above-ground SWM/BMPs and discusses maintenance issues and solutions.
Measurement of Infiltration Rates and the Rejuvenation of Pervious Concrete P...
Permeable Patio Pavers: Make use of patios for Outside Development
1. Permeable Patio Pavers: Make use of patios for Outside
Development
Wall System Design Idea
Interlocking paving stones are by using throughout the earth for much more than 5000 many
years. Even today the tourist walk over the same paving stones.
Simple, economical, durable, and virtually maintenance-free, the Roman system became the
concept for a most adaptable paving
resolution. Brick Pavers Patio Designs: Retaining Walls and Its Fundamental Factors to Take
into consideration
EPHenry Patios: Use patios for Outside Development
The use and popularity of interlocking paving stones is growing by leaps and bounds on the
West Coast today. The reason is very simple that interlocking paving stones are affordable
and reliable.
The Use of Paving stones in Today’s world
The modern paving stone system uses precision manufactured concrete interlocking paving
stones. Concrete pavers have been to begin with created in Netherlands once World War II
and have turned out to be a style in Europe at present. After being put in nearly in each and
every portion from the entire world the traditional pavements have actually been reworked
into the present day development choice. EPHenry Concrete Pavers: Rejuvenate Your
Outdoor Living Experience With New Patio and Pool Paving Themes
Outdoor Lighting: Rejuvenate Your Out of doors Living Experience With New Outdoor patio
and Pool Paving Designs and styles
The value of interlocking concrete pavements has certainly been proven worldwide, and is
rapidly expanding its recognition and momentum as an ideal pavement in Southern California
as well as it is elsewhere.
These paving stones are made up of clay or concrete. These can be settled in sand with no
need or having mortar while offer better durability, looks, and reliability as compared to those
settled in mortar only. Pavers tend to be more resistant from all natural risks such as earth
quake and likewise are available in a number of hues and creations to provide outstanding
look and feel to walkways, patios and driveways. These are the reasons why homeowners
prefer to use paving stones in their homes.
If you are retired, travel frequently, or simply don't enjoy working on your landscaping and
yard work, a small, low-maintenance patio is a good solution for you. Small patios can take
up some of your yard space, thus reducing the amount you have to mow, landscape and
maintain. http://www.diigo.com/user/pedrorowe922?domain=www.ephenry.com
guide
Patio Pattern Concepts
2. Having the small does not imply having something unattractive. Similarly a small patio can
also be a fun within its limited range. Using a simple 15' x 15' space, you can have an area
for sitting, gardening, entertaining, and even a drinking water function.
You select the fabric for your patio according to your individual fashion. Many people like the
classic look of brick. Brick is durable, easy to install and available in many colors from
shades of brown to all degrees of red. Patio pavers are available at affordable cost and are
easy to install. You can obtain this content inside a assortment of shades and measurements
without any stress about its durability. What patio contactor will do is to clear the space and
put the sand over it to place the brick pavers in a linear fashion. It is true that laying brick
pavers is not an arduous task to accomplish but having perfect even look is really a science
and an art as well. If you want to get specialized glance as part of your patio then click below
to obtain the top notch providers of execs for this instance. cool elegantpaver ideas
website here
Sharp Patio Versions with Flagstone
Flagstone is also available in many shapes and colors. If you choose pre-cut standard-sized
flagstones, the installation is relatively easy. Flagstone also comes in random sizes, and this
requires an installer who is experienced at fitting and installing stones of varying sizes and
widths. Just after picking out the fabric for patio job now it arrives to concentrate in excess of
design elements.
Patio Layout Abilities
Look that at which area of your patio the sun rays reach. At this place with enough sunlight
most of the day timing you can have box gardens or small patch of grass to grow. We know
that sunlight is basic need of these plants.
When about to assemble a fence it is best to always keep it away from disturbing the yard
ideas. A fountain or small waterfall will add a luxurious and exotic feel to your patio. If you are
running water source it will reduce the noise of your surroundings easily. There is nothing
more pleasant than enjoying a meal on your patio, and the sound of murmuring water will
complete this experience. And that means you need to have enough space to maintain the
chairs and table more than there.