Presentation by Edgard Hitti on "High RAP Proposed NSSP in California" for the CalAPA Spring Asphalt Pavement Conference & Equipment Expo, April 20-21, 2016, in Ontario, CA.
Presentation by Bob Humer of the Asphalt Institute on "Recommendations for Mix Design Using RAP/RAS" for the CalAPA Spring Asphalt Pavement Conference & Equipment Expo, April 20-21, 2016, in Ontario, CA.
Presentation by Pascal Mascarenhas on "RAP/RAS Content & Performance" expert panel discussion for the CalAPA Spring Asphalt Pavement Conference & Equipment Expo, April 20-21, 2016, in Ontario, CA.
Presentation by Dr. John Harvey, University of California Pavement Research Center, Davis & Berkeley, on Pavement Research and Practical Applications. Presentation delivered during the CalAPA Fall Asphalt Pavement Conference Oct. 26-27, 2016 in Sacramento, Calif.
Erik Updyke with the Los Angeles County Department of Public Works, and a member of the Greenbook Committee, gives an update at the CalAPA Spring Conference & Equipment Expo April 12-13, 2017 in Ontario, Calif. The topic is on the latest update of the Greenbook specification book for public works agencies in California.
Presentation on a proposed 'Superpave' specification for low-volume traffic routes in California. Presentation delivered during the CalAPA Fall Asphalt Pavement Conference Oct. 26-27, 2016 in Sacramento, Calif.
A nationally known consultant, Terry "TJ" Young, provides insight into best practices with regard to Reclaimed Asphalt Pavement (RAP) management at an asphalt plant. Presentation delivered Oct. 13, 2021 at the CalAPA Fall Asphalt Pavement Conference in Sacramento.
Presentation by Dr. Adam Hand, University of Nevada, Reno, on the latest research and performance data on the use of RAP, RAS and other Durable Asphalt Pavement Mixes. Presentation delivered during the CalAPA Fall Asphalt Pavement Conference Oct. 26-27, 2016 in Sacramento, Calif.
Presentation by Bob Humer of the Asphalt Institute on "Recommendations for Mix Design Using RAP/RAS" for the CalAPA Spring Asphalt Pavement Conference & Equipment Expo, April 20-21, 2016, in Ontario, CA.
Presentation by Pascal Mascarenhas on "RAP/RAS Content & Performance" expert panel discussion for the CalAPA Spring Asphalt Pavement Conference & Equipment Expo, April 20-21, 2016, in Ontario, CA.
Presentation by Dr. John Harvey, University of California Pavement Research Center, Davis & Berkeley, on Pavement Research and Practical Applications. Presentation delivered during the CalAPA Fall Asphalt Pavement Conference Oct. 26-27, 2016 in Sacramento, Calif.
Erik Updyke with the Los Angeles County Department of Public Works, and a member of the Greenbook Committee, gives an update at the CalAPA Spring Conference & Equipment Expo April 12-13, 2017 in Ontario, Calif. The topic is on the latest update of the Greenbook specification book for public works agencies in California.
Presentation on a proposed 'Superpave' specification for low-volume traffic routes in California. Presentation delivered during the CalAPA Fall Asphalt Pavement Conference Oct. 26-27, 2016 in Sacramento, Calif.
A nationally known consultant, Terry "TJ" Young, provides insight into best practices with regard to Reclaimed Asphalt Pavement (RAP) management at an asphalt plant. Presentation delivered Oct. 13, 2021 at the CalAPA Fall Asphalt Pavement Conference in Sacramento.
Presentation by Dr. Adam Hand, University of Nevada, Reno, on the latest research and performance data on the use of RAP, RAS and other Durable Asphalt Pavement Mixes. Presentation delivered during the CalAPA Fall Asphalt Pavement Conference Oct. 26-27, 2016 in Sacramento, Calif.
Responding to the public’s demand for more sustainable operations, many agencies are permitting ahigher percentage of Reclaimed Asphalt Pavement (RAP) in pavement mixes and are considering the use of Recycled Asphalt Shingles (RAS). Hear from a renowned national expert on the very latest in RAP and RAS trends, research and practical applications.
This document discusses the key aspects of designing rubberized hot mix asphalt (RHMA). RHMA uses asphalt rubber binder and gap-graded aggregates. The mix design process involves selecting aggregates and an asphalt rubber binder that meet specifications. The binder is produced by adding crumb rubber to heated asphalt cement. Optimum binder content is a minimum of 7.5% by total weight. Performance tests include the Hamburg wheel track test for rutting resistance and tensile strength ratio test for moisture susceptibility. Proper compaction at high temperatures and aggregate gradation are critical to meeting volumetric and performance requirements.
Mohamed Elkashef, Ph.D, representing the University of California, Davis Pavement Research Center (UCPRC) delivers a presentation on UCPRC's research related to the use of RAP in asphalt mixes. Presentation delivered on Nov. 7, 2019 at the California Asphalt Pavement Association Fall Asphalt Pavement Conference in Sacramento, Calif.
Brandon Milar, P.E., Director of Technical Services for CalAPA, delivers a technical presentation on Warm Mix Asphalt standards and technology at the CalAPA Spring Asphalt Pavement Conference & Equipment Expo, April 12-13, 2017 in Ontario, Calif.
Richard Steger, Platform Manger-Rehab, Ingevity, delivers a technical presentation on blanaced mix design and cracking test, addressing high-recycle content asphalt mixtures at the CalAPA Spring Asphalt Pavement Conference & Equipment Expo, April 12-13, 2017 in Ontario, Calif.
This document outlines the evaluation of warm mix asphalt additives for use in modified asphalt mixtures. The study had two phases: Phase I evaluated additional work on mixtures' resistance to permanent deformation and fatigue cracking. Phase II involved new mix designs to evaluate moisture damage resistance and permanent deformation resistance. The study found that warm mix additives had little effect on mixture performance, with some warm mix asphalt mixtures performing similarly or better than traditional hot mix asphalt mixtures.
Richard Steger with Ingevity gives a technical presentation on balanced mix design and the development of a pavement cracking test at the CalAPA Spring Conference & Equipment Expo April 12-13, 2017 in Ontario, Calif.
Local agencies can develop their own SUPERPAVE specifications for asphalt pavement projects by critically reviewing Caltrans' 2015 specifications. The 2015 specs include performance-based requirements for aggregate gradation, asphalt binder content and grade, moisture sensitivity testing using the Hamburg Wheel Tracking Device, density and smoothness standards. Local agencies should identify a pavement expert, develop an action plan and timeline, finalize customized changes based on feedback, and collect data to refine their SUPERPAVE specifications.
Presentation by Maged Armanuse, Branch Chief, METS, California Department of Transportation (Caltrans), on recent revisions to the HWTT (AASHTO T324) test. Presentation delivered on Nov. 6, 2019 at the California Asphalt Pavement Association Fall Asphalt Pavement Conference in Sacramento, Calif.
Asphalt Binders Used in Mongolia in the view of Superpave Specification,jul...Bayar Tsend
The document summarizes test results for 5 asphalt binder samples from Mongolia using the Superpave specification. The samples can be divided into 4 groups: Sample 2 should be rejected due to water contamination and added lighter oils. Sample 5 is a very good conventional binder meeting the requirements for standard traffic. Samples 1 and 3 are also good conventional binders meeting the same standard traffic requirements. Sample 4 is suitable for warmer climates only. Sample 2 should not be used for paving.
Sri Balasubramanian, P.E., Chief of the Caltrans Office of Asphalt Pavement, and Jack Van Kirk, P.E., Director of Asphalt Technology for George Reed/Basic Resources, and co-chair of the Asphalt Task Group, part of the joinit Caltrans-industry Rock Products Committee, provide an update on Caltrans asphalt pavement specifications and testing issues. at the CalAPA Spring Asphalt Pavement Conference & Equipment Expo, April 12-13, 2017 in Ontario, Calif.
Greg Reader, George Reed Inc., and Dave Aver, City of Santa Rosa, present on the various relationships between the material and mix characteristics and how they are used to adjust the mix design to meet the project requirements. Presentation delivered on Nov. 7, 2019 at the California Asphalt Pavement Association Fall Asphalt Pavement Conference in Sacramento, Calif.
IRJET- Study on Assesment of Reclaimed Asphalt Pavement in Flexible Pavement ...IRJET Journal
This document summarizes a study on the use of reclaimed asphalt pavement (RAP) in flexible pavement layers. The study included laboratory tests of RAP mixtures with 0%, 3%, and 5% cement added as a stabilizer. Test results showed that RAP has lower abrasion and impact values than virgin aggregates due to the protective bitumen layer. RAP also had higher moisture and bitumen content. When combined according to a job mix formula, RAP, coarse aggregates, and fine sand produced gradations meeting specification limits. Cement stabilization improved the strength properties of RAP mixtures for use in base and subbase layers.
IRJET- Utilization of Reclaimed Asphalt Pavement and Ceramic Waste in Pav...IRJET Journal
This document discusses utilizing reclaimed asphalt pavement (RAP) and ceramic waste in pavement construction. It begins by introducing the environmental and economic benefits of recycling materials. It then describes how RAP and ceramic waste were used to replace aggregates and asphalt in hot mix asphalt. Samples with varying ratios of RAP and ceramic waste replacing virgin aggregates were tested following the Marshall design method. Test results found that a sample with 70% ceramic waste and 30% RAP replacing aggregates performed better than other mixtures in terms of Marshall stability values. Further testing included adding some virgin aggregates to improve stability. In conclusion, using appropriate ratios of RAP and ceramic waste was found to be a viable way to construct pavement while providing environmental
2017 CalAPA Fall Asphalt Pavement Conference presentation: A summary of research conducted by the University of California Pavement Research Center, Lawrence Berkeley National Laboratory and the University of Southern California on lifecycle impacts of cool pavement strategies in California.
Distillation Blending and Cutpoint Temperature Optimization (DBCTO) in Schedu...Brenno Menezes
To improve efficiency, effectiveness and economy of mixing/blending, reacting/converting and separating/fractionating inside the oil-refinery.
To integrate blending of several streams’ distillation curves with also shifting or adjusting cutpoints of distilled streams (i.e., initial and/or final boiling-points, IBP and FBP) in order to manipulate their TBP curves in an either off- or on-line environment (Kelly et al, 2014).
Presentation by Edgard Hitti with Alon Asphalt Company titled "Terminal Blend Rubber Bitumen" at the California Asphalt Pavement Association San Diego Technical Committee Meeting Jan. 28, 2015 in the City of Carlsbad.
Barry McKeon presented on full depth reclamation (FDR) at an APWA conference. FDR is an economical recycling technique that uniformly pulverizes and stabilizes the full flexible pavement section and a portion of the underlying base with an emulsion or foamed asphalt. The presentation covered the FDR process, advantages like using 100% existing materials and increased load bearing strength, equipment overview, project applications, quality control, and environmental and economic benefits. FDR results in a more moisture tolerant base course that can resist cracking and widening projects.
Presentation delivered by Erik Updyke with Los Angeles County Department of Public Works at the California Asphalt Pavement Association Spring Conference April 25, 2013 in Ontario, CA.
Responding to the public’s demand for more sustainable operations, many agencies are permitting ahigher percentage of Reclaimed Asphalt Pavement (RAP) in pavement mixes and are considering the use of Recycled Asphalt Shingles (RAS). Hear from a renowned national expert on the very latest in RAP and RAS trends, research and practical applications.
This document discusses the key aspects of designing rubberized hot mix asphalt (RHMA). RHMA uses asphalt rubber binder and gap-graded aggregates. The mix design process involves selecting aggregates and an asphalt rubber binder that meet specifications. The binder is produced by adding crumb rubber to heated asphalt cement. Optimum binder content is a minimum of 7.5% by total weight. Performance tests include the Hamburg wheel track test for rutting resistance and tensile strength ratio test for moisture susceptibility. Proper compaction at high temperatures and aggregate gradation are critical to meeting volumetric and performance requirements.
Mohamed Elkashef, Ph.D, representing the University of California, Davis Pavement Research Center (UCPRC) delivers a presentation on UCPRC's research related to the use of RAP in asphalt mixes. Presentation delivered on Nov. 7, 2019 at the California Asphalt Pavement Association Fall Asphalt Pavement Conference in Sacramento, Calif.
Brandon Milar, P.E., Director of Technical Services for CalAPA, delivers a technical presentation on Warm Mix Asphalt standards and technology at the CalAPA Spring Asphalt Pavement Conference & Equipment Expo, April 12-13, 2017 in Ontario, Calif.
Richard Steger, Platform Manger-Rehab, Ingevity, delivers a technical presentation on blanaced mix design and cracking test, addressing high-recycle content asphalt mixtures at the CalAPA Spring Asphalt Pavement Conference & Equipment Expo, April 12-13, 2017 in Ontario, Calif.
This document outlines the evaluation of warm mix asphalt additives for use in modified asphalt mixtures. The study had two phases: Phase I evaluated additional work on mixtures' resistance to permanent deformation and fatigue cracking. Phase II involved new mix designs to evaluate moisture damage resistance and permanent deformation resistance. The study found that warm mix additives had little effect on mixture performance, with some warm mix asphalt mixtures performing similarly or better than traditional hot mix asphalt mixtures.
Richard Steger with Ingevity gives a technical presentation on balanced mix design and the development of a pavement cracking test at the CalAPA Spring Conference & Equipment Expo April 12-13, 2017 in Ontario, Calif.
Local agencies can develop their own SUPERPAVE specifications for asphalt pavement projects by critically reviewing Caltrans' 2015 specifications. The 2015 specs include performance-based requirements for aggregate gradation, asphalt binder content and grade, moisture sensitivity testing using the Hamburg Wheel Tracking Device, density and smoothness standards. Local agencies should identify a pavement expert, develop an action plan and timeline, finalize customized changes based on feedback, and collect data to refine their SUPERPAVE specifications.
Presentation by Maged Armanuse, Branch Chief, METS, California Department of Transportation (Caltrans), on recent revisions to the HWTT (AASHTO T324) test. Presentation delivered on Nov. 6, 2019 at the California Asphalt Pavement Association Fall Asphalt Pavement Conference in Sacramento, Calif.
Asphalt Binders Used in Mongolia in the view of Superpave Specification,jul...Bayar Tsend
The document summarizes test results for 5 asphalt binder samples from Mongolia using the Superpave specification. The samples can be divided into 4 groups: Sample 2 should be rejected due to water contamination and added lighter oils. Sample 5 is a very good conventional binder meeting the requirements for standard traffic. Samples 1 and 3 are also good conventional binders meeting the same standard traffic requirements. Sample 4 is suitable for warmer climates only. Sample 2 should not be used for paving.
Sri Balasubramanian, P.E., Chief of the Caltrans Office of Asphalt Pavement, and Jack Van Kirk, P.E., Director of Asphalt Technology for George Reed/Basic Resources, and co-chair of the Asphalt Task Group, part of the joinit Caltrans-industry Rock Products Committee, provide an update on Caltrans asphalt pavement specifications and testing issues. at the CalAPA Spring Asphalt Pavement Conference & Equipment Expo, April 12-13, 2017 in Ontario, Calif.
Greg Reader, George Reed Inc., and Dave Aver, City of Santa Rosa, present on the various relationships between the material and mix characteristics and how they are used to adjust the mix design to meet the project requirements. Presentation delivered on Nov. 7, 2019 at the California Asphalt Pavement Association Fall Asphalt Pavement Conference in Sacramento, Calif.
IRJET- Study on Assesment of Reclaimed Asphalt Pavement in Flexible Pavement ...IRJET Journal
This document summarizes a study on the use of reclaimed asphalt pavement (RAP) in flexible pavement layers. The study included laboratory tests of RAP mixtures with 0%, 3%, and 5% cement added as a stabilizer. Test results showed that RAP has lower abrasion and impact values than virgin aggregates due to the protective bitumen layer. RAP also had higher moisture and bitumen content. When combined according to a job mix formula, RAP, coarse aggregates, and fine sand produced gradations meeting specification limits. Cement stabilization improved the strength properties of RAP mixtures for use in base and subbase layers.
IRJET- Utilization of Reclaimed Asphalt Pavement and Ceramic Waste in Pav...IRJET Journal
This document discusses utilizing reclaimed asphalt pavement (RAP) and ceramic waste in pavement construction. It begins by introducing the environmental and economic benefits of recycling materials. It then describes how RAP and ceramic waste were used to replace aggregates and asphalt in hot mix asphalt. Samples with varying ratios of RAP and ceramic waste replacing virgin aggregates were tested following the Marshall design method. Test results found that a sample with 70% ceramic waste and 30% RAP replacing aggregates performed better than other mixtures in terms of Marshall stability values. Further testing included adding some virgin aggregates to improve stability. In conclusion, using appropriate ratios of RAP and ceramic waste was found to be a viable way to construct pavement while providing environmental
2017 CalAPA Fall Asphalt Pavement Conference presentation: A summary of research conducted by the University of California Pavement Research Center, Lawrence Berkeley National Laboratory and the University of Southern California on lifecycle impacts of cool pavement strategies in California.
Distillation Blending and Cutpoint Temperature Optimization (DBCTO) in Schedu...Brenno Menezes
To improve efficiency, effectiveness and economy of mixing/blending, reacting/converting and separating/fractionating inside the oil-refinery.
To integrate blending of several streams’ distillation curves with also shifting or adjusting cutpoints of distilled streams (i.e., initial and/or final boiling-points, IBP and FBP) in order to manipulate their TBP curves in an either off- or on-line environment (Kelly et al, 2014).
Presentation by Edgard Hitti with Alon Asphalt Company titled "Terminal Blend Rubber Bitumen" at the California Asphalt Pavement Association San Diego Technical Committee Meeting Jan. 28, 2015 in the City of Carlsbad.
Barry McKeon presented on full depth reclamation (FDR) at an APWA conference. FDR is an economical recycling technique that uniformly pulverizes and stabilizes the full flexible pavement section and a portion of the underlying base with an emulsion or foamed asphalt. The presentation covered the FDR process, advantages like using 100% existing materials and increased load bearing strength, equipment overview, project applications, quality control, and environmental and economic benefits. FDR results in a more moisture tolerant base course that can resist cracking and widening projects.
Presentation delivered by Erik Updyke with Los Angeles County Department of Public Works at the California Asphalt Pavement Association Spring Conference April 25, 2013 in Ontario, CA.
A new arrival to California as part of the Caltrans move toward national “Superpave” specifications, the Hamburg Wheel Track test is intended to test the rut resistance and moisture sensitivity of asphalt pavements. Hear the latest research and practical lab applications of the HWT in California from the acclaimed Pavement Research Center.
Presentation by Pascal Mascarenhas of Vulcan Materials on Reclaimed Asphalt Pavement delivered at the CalAPA Fall Conference held Oct. 24, 2013 in Sacramento, Calif.
Presentation delivered at the CalAPA Spring Asphalt Pavement Conference April 9-10, 2014 in Ontario. Topic: New Superpave specification coming to California.
An orientation on changes to Caltrans asphalt pavement specifications to incorporate elements of the national "Superpave" standard. Presented by Joe Peterson, chief, Office of Roadway Materials Testing for Caltrans at the Dec. 3, 2014 CalAPA L.A. and High Desert Technical Committee meeting in Fontana.
This document discusses the fundamentals of rheology and describes various types of rheometers used to measure the rheological properties of asphalt binders. It explains that rheology is the study of flow and deformation and introduces constitutive relationships between force and deformation. It then describes different types of rheometers, including shear rheometers that apply drag or pressure-driven flows, and other rheometers that measure stiffness and strength through bending beam or direct tension tests. Specific examples of equipment are also shown, such as concentric cylinder and parallel plate shear rheometers, a bending beam rheometer, and a direct tension testing device.
Performance Evaluation of Hot Mix Asphalt with Recycled Asphalt Pavement usin...Basavaraj
Performance Evaluation of Hot Mix Asphalt with Recycled Asphalt Pavement using Rejuvenator.
Rejuvenator enhances the binder properties of ecycled asphalt and gives good results.
Get an insider’s view of the “Greenbook,” the Standard Plans for Public Works Construction utilized by many local agencies in Southern California, including current and planned updates to the specifications as it relates to asphalt pavements.
This document discusses polymer modified asphalt binders. It provides background on Kraton Corporation, a leading producer of styrenic block copolymers used in polymer modification. It then covers topics including asphalt binders, polymer modification and its effects on mechanical properties, and performance benefits including increased pavement life. Case studies are presented demonstrating longer lasting pavements with polymer modified asphalt in various locations.
Sakai Masters of Compaction - Kevin Sawyer of Martin MariettaJosh Steele
Martin Marietta is the largest asphalt producer and paving contractor in Colorado. Kevin Sawyer is a quality control technician at Martin Marietta with over 30 years of experience in aggregates and asphalt. He has extensive knowledge of all aspects of asphalt production and paving quality programs. Sawyer relies on consistent paver speeds and roller patterns to achieve smooth, dense pavements. He prefers using the Sakai GW750 vibratory pneumatic roller, which can replace multiple conventional rollers and improves compaction efficiency. Sawyer's rolling patterns utilize the GW750 to remove roller marks and prevent mix pickup, helping crews meet density requirements.
This document provides standards for welding and joining procedures for gas transmission and distribution piping. It specifies tolerances for pipe fit-up and alignment depending on hoop stress levels. For piping operating at hoop stresses greater than 20% of yield strength, the maximum internal offset is 3/32 inch without special treatment, and greater offsets require tapered transitions. It also provides acceptance criteria for completed welds, requiring visual inspection of samples and non-destructive testing depending on pipe size and system classification. Random samples of welds must meet visual standards and be examined by methods like radiography or magnetic particle testing.
A blend of asphalt cement, reclaimed tire rubber and certain additives in which the rubber component is at least 15% by weight of the total blend and has reacted in the hot asphalt asphalt cement sufficiently to cause swelling of the rubber particles.
This document provides the specification for 43 grade ordinary Portland cement. It outlines the requirements for the manufacture, chemical composition, physical properties, packaging, and certification. The chemical composition must meet the requirements in Table 1. The physical properties include a minimum fineness, limits on soundness, setting times, and compressive strengths at various ages. There are also notes on additional tests, limits on chlorides, and the option to agree on additional requirements between the purchaser and supplier.
This document provides the specification for 43 grade ordinary Portland cement. It outlines the requirements for the manufacture, chemical composition, physical properties, testing methods, and other details of the cement. The key points are:
- It specifies the chemical composition and limits for things like lime, silica, alumina, iron oxide, magnesia, sulphur content, and loss on ignition.
- The physical requirements include a minimum fineness of 225 m2/kg, soundness limits of 10mm and 0.8% via Le-Chatelier and autoclave tests, and setting time and compressive strength requirements.
- It describes the appropriate testing standards for determining these chemical and physical properties.
This document summarizes a study that assessed the effect of crumb rubber modifier (CRM) on rutting resistance of warm mix asphalt (WMA) mixtures incorporating the warm mix additive Sasobit. Four asphalt mixtures were produced with 0%, 5%, 10%, and 15% CRM by weight of base binder. Laboratory wheel tracking tests were conducted on cylindrical samples at 45°C and 60°C to measure rut depths. Results showed that CRM improved the rutting resistance of the WMA mixtures, with lower rut depths observed at higher CRM contents. Statistical analysis confirmed that both CRM content and test temperature significantly affected rutting in the WMA mixtures.
Presentation by Cathrina Barros of Caltrans on Testing Accreditation and Independent Assurance delivered at the CalAPA Fall Asphalt Pavement Conference Oct. 24, 2013 in Sacramento, Calif.
As Warm Mix Asphalt (WMA) moves into the mainstream, hear the latest research on WMA performance from the respected National Center for Asphalt Technology, which puts various pavement technologies to the test under live traffic on a test track in Alabama.
IRJET- Effect of Various Parameters on Performance of Rural Roads Constructed...IRJET Journal
This document discusses parameters that affect the performance of rural roads constructed under the Madhya Pradesh Rural Road Development Authority (MPRRDA) in Sagar District, India. It provides background on rural road construction programs in India and defines various technical specifications for rural road construction, including allowable tolerances for alignment, requirements for embankment construction, recommended grading for materials used in granular sub-bases, bases, and surface courses, and specifications for compaction levels and techniques like wet mix macadam. The document aims to establish standardized technical guidelines to ensure quality in rural road construction and maintenance under the MPRRDA program.
The document discusses the performance of electrical submersible pumps (ESPs) in the Messla oil field in Libya. It finds that ESP run life has sharply decreased in recent years due to a gap between reservoir management and ESP system reliability. To improve the system for the next 5-10 years, it recommends fixing pump setting depths based on predicted reservoir pressures. This will improve reliability, better prepare stock inventory, and reduce costs.
Rev.F Part-2 Technical Eng FEED KOM Petronas Melamine (1).pptxChinBoonWoi2
The document provides details on deliverables for the Casale engineering scope. It includes lists of process, piping, and instrumentation deliverables. It also outlines clarification requests and discussion items regarding utilities, plot area, and other design aspects. The key deliverables are process flow diagrams, heat and material balances, piping and instrumentation drawings, equipment lists, and philosophy documents establishing the design basis.
Shellberge A215 ATF Additive optimally cares for rubber and plastic seals in steering gears and automatic transmissions, preventing leaks caused by hardened and brittle seals. The additive is recommended at 10.0% by weight for GM DEXRON® III and Ford MERCON® fluids meeting requirements such as Allison C-4. The red viscous liquid has properties such as a specific gravity of 0.935, viscosity of 170-185 cSt at 100°C, and flash point of 110-165°C.
This document provides guidance on assessing subgrade strength and designing capping and sub-base layers for road foundations. It outlines methods for estimating the California Bearing Ratio (CBR) of subgrades through site investigation and index tests when direct measurement is not possible. Design charts are given to determine the required thicknesses of capping and sub-base layers based on the estimated CBR value of the subgrade. Specifications for capping and sub-base materials are also provided.
This document provides step-by-step instructions for performing Rel-5 transmitter and receiver characteristic tests and performance tests according to 3GPP TS 34.121 using the R&S CMU200 instrument. It describes the generic call setup for the transmitter characteristic tests using a 12.2 kbps reference measurement channel. Test cases that require additional instruments like a fading simulator are also discussed. Example measurement configurations and test parameters for each test are provided.
This document provides step-by-step instructions for performing 3GPP Rel-5 transmitter characteristics, receiver characteristics, and performance tests using the R&S CMU200 instrument. It covers tests such as maximum output power, code domain power accuracy, spectrum emission mask, error vector magnitude, channel quality indicator reporting, and HS-SCCH detection performance. The document also includes *.sav files for recalling predefined test configurations for a UE supporting band I and power class 3.
Similar to High RAP proposed NSSP in California (17)
Dan Staebell with Cargill examines the use of WMA, RAP and other technologies to lower asphalt's carbon footprint in a presentation delivered during the CalAPA Spring Asphalt Pavement Conference March 7-8, 2024 in Ontario, Calif.
Marco Estrada with PRS provides an industry perspective of cold in-place recycling in a presentation delivered during the CalAPA Spring Asphalt Pavement Conference March 7-8, 2024 in Ontario, Calif.
Dr. Dave Jones of the University of California Pavement Research Center provides an academic perspective of in-place recycling in a presentation delivered during the CalAPA Spring Asphalt Pavement Conference March 7-8, 2024 in Ontario, Calif.
Larry Hernandez with Caltrans provides the department's perspective on in-place recycling in a presentation delivered during the CalAPA Spring Asphalt Pavement Conference March 7-8, 2024 in Ontario, Calif.
Dr. John Harvey, director, University of California Pavement Research Center, reviews the most recent research with regard to Reclaimed Asphalt Pavement during a presentation delivered during the CalAPA Spring Asphalt Pavement Conference March 7-8, 2024 in Ontario, Calif.
Erik Updyke, project manager for the City & County Pavement Improvement Center, focuses on pavement quality for local agencies in a presentation delivered during the CalAPA Spring Asphalt Pavement Conference March 7-8, 2024 in Ontario, Calif.
Buzz Powell, technical director, Asphalt Pavement Alliance, examines various trends in the industry from a national perspective in a presentation delivered during the CalAPA Spring Asphalt Pavement Conference March 7-8, 2024 in Ontario, Calif.
Chris Sparks with MacRebur delves into the utilization of reclaimed plastics into asphalt pavement mixes delivered during the CalAPA Spring Asphalt Pavement Conference March 7-8, 2024 in Ontario, Calif.
Scott Dmytrow with PavementACES, a noted pavement preservation expert, provides an update on various tools and techniques in the pavement preservation space delivered during the CalAPA Spring Asphalt Pavement Conference March 7-8, 2024 in Ontario, Calif.
Presentation by Joseph Dongo of Caltrans on the department's eTicketing initiative for construction materials transport delivered during the CalAPA Spring Asphalt Pavement Conference March 7-8, 2024 in Ontario, Calif.
Alex Richardson with Haul Hub delivers a presentation on eTicketing technology delivered during the CalAPA Spring Asphalt Pavement Conference March 7-8, 2024 in Ontario, Calif.
Presentation on Environmental Product Declarations and benchmarking delivered by Amlan Mukherjee of WAP Sustainability during the CalAPA Spring Asphalt Pavement Conference March 7-8, 2024 in Ontario.
Presentation by Cathrina Barros of Caltrans, co-chair of the Women of Asphalt California Branch, on Women of Asphalt Activities in 2023 and 2024 delivered during the CalAPA Spring Asphalt Pavement Conference March 7-8, 2024 in Ontario
Presentation on the City & County Pavement Improvement Center delivered at the California Asphalt Pavement Association Spring Asphalt Pavement Conference March 7-8, 2024 in Ontario, Calif.
Presentation by Sean Devine of X-B-E on the "Hey NAPA" research tool utilizing AI technology, and other implications of AI for our industry, delivered at the California Asphalt Pavement Association Spring Asphalt Pavement Conference March 7-8, 2024 in Ontario, Calif.
An overview of the Caltrans District 8 program and priorities delivered at the California Asphalt Pavement Association Spring Asphalt Pavement Conference March 7-8, 2024 in Ontario, Calif.
Update on the Joint Training & Certification Program for materials technicians in California delivered at the California Asphalt Pavement Association Spring Asphalt Pavement Conference March 7-8, 2024 in Ontario, Calif.
Presentation on "Pointers & TIps" related to Environmental Product Declarations (EPDs) from the perspective of an asphalt plant expert delivered by T.J. Young at the CalAPA EPD workshop on Oct. 25, 2023 in Sacramento.
Presentation titled "The Emerald Eco-Label Tool & Lessons Learned" delivered by Amlan Mukherjee, Ph.D., P.E. of WAP Sustainability Consulting at the CalAPA EPD workshop on Oct. 25, 2023 in Sacramento.
Presentation on the national perspective on Environmental Product Declarations (EPDs) delivered by Joseph Shacat of the National Asphalt Pavement Association (NAPA) at the CalAPA EPD workshop on Oct. 25, 2023 in Sacramento.
More from California Asphalt Pavement Association (20)
Software Engineering and Project Management - Introduction, Modeling Concepts...Prakhyath Rai
Introduction, Modeling Concepts and Class Modeling: What is Object orientation? What is OO development? OO Themes; Evidence for usefulness of OO development; OO modeling history. Modeling
as Design technique: Modeling, abstraction, The Three models. Class Modeling: Object and Class Concept, Link and associations concepts, Generalization and Inheritance, A sample class model, Navigation of class models, and UML diagrams
Building the Analysis Models: Requirement Analysis, Analysis Model Approaches, Data modeling Concepts, Object Oriented Analysis, Scenario-Based Modeling, Flow-Oriented Modeling, class Based Modeling, Creating a Behavioral Model.
An improved modulation technique suitable for a three level flying capacitor ...IJECEIAES
This research paper introduces an innovative modulation technique for controlling a 3-level flying capacitor multilevel inverter (FCMLI), aiming to streamline the modulation process in contrast to conventional methods. The proposed
simplified modulation technique paves the way for more straightforward and
efficient control of multilevel inverters, enabling their widespread adoption and
integration into modern power electronic systems. Through the amalgamation of
sinusoidal pulse width modulation (SPWM) with a high-frequency square wave
pulse, this controlling technique attains energy equilibrium across the coupling
capacitor. The modulation scheme incorporates a simplified switching pattern
and a decreased count of voltage references, thereby simplifying the control
algorithm.
Applications of artificial Intelligence in Mechanical Engineering.pdfAtif Razi
Historically, mechanical engineering has relied heavily on human expertise and empirical methods to solve complex problems. With the introduction of computer-aided design (CAD) and finite element analysis (FEA), the field took its first steps towards digitization. These tools allowed engineers to simulate and analyze mechanical systems with greater accuracy and efficiency. However, the sheer volume of data generated by modern engineering systems and the increasing complexity of these systems have necessitated more advanced analytical tools, paving the way for AI.
AI offers the capability to process vast amounts of data, identify patterns, and make predictions with a level of speed and accuracy unattainable by traditional methods. This has profound implications for mechanical engineering, enabling more efficient design processes, predictive maintenance strategies, and optimized manufacturing operations. AI-driven tools can learn from historical data, adapt to new information, and continuously improve their performance, making them invaluable in tackling the multifaceted challenges of modern mechanical engineering.
Discover the latest insights on Data Driven Maintenance with our comprehensive webinar presentation. Learn about traditional maintenance challenges, the right approach to utilizing data, and the benefits of adopting a Data Driven Maintenance strategy. Explore real-world examples, industry best practices, and innovative solutions like FMECA and the D3M model. This presentation, led by expert Jules Oudmans, is essential for asset owners looking to optimize their maintenance processes and leverage digital technologies for improved efficiency and performance. Download now to stay ahead in the evolving maintenance landscape.
Redefining brain tumor segmentation: a cutting-edge convolutional neural netw...IJECEIAES
Medical image analysis has witnessed significant advancements with deep learning techniques. In the domain of brain tumor segmentation, the ability to
precisely delineate tumor boundaries from magnetic resonance imaging (MRI)
scans holds profound implications for diagnosis. This study presents an ensemble convolutional neural network (CNN) with transfer learning, integrating
the state-of-the-art Deeplabv3+ architecture with the ResNet18 backbone. The
model is rigorously trained and evaluated, exhibiting remarkable performance
metrics, including an impressive global accuracy of 99.286%, a high-class accuracy of 82.191%, a mean intersection over union (IoU) of 79.900%, a weighted
IoU of 98.620%, and a Boundary F1 (BF) score of 83.303%. Notably, a detailed comparative analysis with existing methods showcases the superiority of
our proposed model. These findings underscore the model’s competence in precise brain tumor localization, underscoring its potential to revolutionize medical
image analysis and enhance healthcare outcomes. This research paves the way
for future exploration and optimization of advanced CNN models in medical
imaging, emphasizing addressing false positives and resource efficiency.
Null Bangalore | Pentesters Approach to AWS IAMDivyanshu
#Abstract:
- Learn more about the real-world methods for auditing AWS IAM (Identity and Access Management) as a pentester. So let us proceed with a brief discussion of IAM as well as some typical misconfigurations and their potential exploits in order to reinforce the understanding of IAM security best practices.
- Gain actionable insights into AWS IAM policies and roles, using hands on approach.
#Prerequisites:
- Basic understanding of AWS services and architecture
- Familiarity with cloud security concepts
- Experience using the AWS Management Console or AWS CLI.
- For hands on lab create account on [killercoda.com](https://killercoda.com/cloudsecurity-scenario/)
# Scenario Covered:
- Basics of IAM in AWS
- Implementing IAM Policies with Least Privilege to Manage S3 Bucket
- Objective: Create an S3 bucket with least privilege IAM policy and validate access.
- Steps:
- Create S3 bucket.
- Attach least privilege policy to IAM user.
- Validate access.
- Exploiting IAM PassRole Misconfiguration
-Allows a user to pass a specific IAM role to an AWS service (ec2), typically used for service access delegation. Then exploit PassRole Misconfiguration granting unauthorized access to sensitive resources.
- Objective: Demonstrate how a PassRole misconfiguration can grant unauthorized access.
- Steps:
- Allow user to pass IAM role to EC2.
- Exploit misconfiguration for unauthorized access.
- Access sensitive resources.
- Exploiting IAM AssumeRole Misconfiguration with Overly Permissive Role
- An overly permissive IAM role configuration can lead to privilege escalation by creating a role with administrative privileges and allow a user to assume this role.
- Objective: Show how overly permissive IAM roles can lead to privilege escalation.
- Steps:
- Create role with administrative privileges.
- Allow user to assume the role.
- Perform administrative actions.
- Differentiation between PassRole vs AssumeRole
Try at [killercoda.com](https://killercoda.com/cloudsecurity-scenario/)
Electric vehicle and photovoltaic advanced roles in enhancing the financial p...IJECEIAES
Climate change's impact on the planet forced the United Nations and governments to promote green energies and electric transportation. The deployments of photovoltaic (PV) and electric vehicle (EV) systems gained stronger momentum due to their numerous advantages over fossil fuel types. The advantages go beyond sustainability to reach financial support and stability. The work in this paper introduces the hybrid system between PV and EV to support industrial and commercial plants. This paper covers the theoretical framework of the proposed hybrid system including the required equation to complete the cost analysis when PV and EV are present. In addition, the proposed design diagram which sets the priorities and requirements of the system is presented. The proposed approach allows setup to advance their power stability, especially during power outages. The presented information supports researchers and plant owners to complete the necessary analysis while promoting the deployment of clean energy. The result of a case study that represents a dairy milk farmer supports the theoretical works and highlights its advanced benefits to existing plants. The short return on investment of the proposed approach supports the paper's novelty approach for the sustainable electrical system. In addition, the proposed system allows for an isolated power setup without the need for a transmission line which enhances the safety of the electrical network
Batteries -Introduction – Types of Batteries – discharging and charging of battery - characteristics of battery –battery rating- various tests on battery- – Primary battery: silver button cell- Secondary battery :Ni-Cd battery-modern battery: lithium ion battery-maintenance of batteries-choices of batteries for electric vehicle applications.
Fuel Cells: Introduction- importance and classification of fuel cells - description, principle, components, applications of fuel cells: H2-O2 fuel cell, alkaline fuel cell, molten carbonate fuel cell and direct methanol fuel cells.
2. ALON USA
Alon Asphalt Company
2
CalTrans PG-Grades
As of 2013: PG-M allow 10% crumb rubber
3. ALON USA
Alon Asphalt Company
3
On July 2015, industry received the following proposal:
Section 39-2.02B Mix Design:
If RAP greater than 15 percent is used, determine the actual performance grade of the virgin
binder in accordance with AASHTO T315
If RAP greater than 15 percent is used, the HMA mixture asphalt binder calculated PG grading
must meet the requirements for the asphalt binder specified in section 39-2.02C.
Section 92-1.02B:
Delete footnote d ( + 3 degree bump)
RAP/RAS NSSP:
Replace "Reserved" in section 39-2.02C of the RSS for section 39:
If RAS is used, the virgin asphalt binder must meet the requirements of AASHTO M320
If RAS is used, the recovered asphalt binder must meet the requirements for the asphalt binder
specified in section 39-2.02C, with the following modifications:
If the original binder DSR fails at the specified test temperature, test the sample at 3 °C higher
or lower.
If the RTFO DSR fails at the specified test temperature, test the sample at 3 °C higher or lower.
If the RTFO + PAV DSR fails at the specified test temperature, test the sample at 1.5 °C higher
or lower.
If the BBR fails at the specified test temperature, test the sample at 3 °C higher or lower.
4. ALON USA
Alon Asphalt Company
4
On January 2016, binder suppliers make the following recommendations to Caltrans regarding
the true grading of binders for use with RAP:
1)To minimize the amount of true grading for RAP, consider following the simpler AASHTO
M323 recommendations:
a) no change in binder grade for less than 15% RAP;
b) one grade softer binder for 15-25% RAP; and
c) use of blending charts for RAP percentages over 25%. This approach has been
endorsed by FHWA, NCAT, and by the Asphalt Institute in its MS-2 Mix Design Manual
(7th edition).
This approach seems reasonable because it is with the high percentages of RAP
(greater than 25%) where most of the cracking problems have been encountered.
Although MS-2 cites the use of blending charts as the most robust approach, it also
concurs with the simpler approach of M323 (with some additional guidelines), and
notes the additional time and expense of using the blending charts.
5. ALON USA
Alon Asphalt Company
5
2) As described in the Caltrans draft Construction Procedure Directive (CPD) on Hot
Mix Asphalt with Reclaimed Asphalt Pavement (January 13, 2016),
continue to place the responsibility for determining the virgin binder true grade
upon the contractor who uses RAP, rather than upon the binder supplier,
whether the use of true grades and blending charts begins at 16% or
26%.
In closing, the binder suppliers are committed to supplying virgin asphalt binders
according to Caltrans Standard Specifications, Section 92, Asphalt Binders.
Interpretation:
No changes for the COC binder suppliers requirements
6. ALON USA
Alon Asphalt Company
6
By March of 2016 the NSSP was presented as follow:
Replace the paragraphs in section 39-2.01C(2) of the RSS for section 39 with:
The JMF must be based on the Superpave HMA mix design system as described in the MS-2
Asphalt Mix Design Methods by the Asphalt Institute.
For a Type A HMA mixture using RAP substitution greater than 15 percent of the aggregate
blend. The HMA mixture binder grade must not be stiffer than the PG binder grade
specified and must be determined by blending charts for high, intermediate, and low
critical temperatures.
Original binder requirements, ductility requirements, & note d in the table of section 92-
1.02B do not apply in the determination of binder grade using blending charts.
Interpretation:
Orig DSR 1-2 doesn’t apply
RTFO Ductility min of 75cm doesn’t apply
+3C tolerance on PAV DSR doesn’t apply
No Elastic Recovery exemption was given for modified binder or maybe overlooked i.e. expected to
meet 75% ER with 30% RAP?
7. ALON USA
Alon Asphalt Company
7
Replace the row for moisture susceptibility, dry strength, in the table in item 3 in the list of
the paragraph of section 39-2.02A(4)(e) with:
Moisture susceptibility (psi, dry strength) AASHTO T 283 100–300
Interpretation:
To prevent brittle mixes that can lead to early cracking
8. ALON USA
Alon Asphalt Company
8
Add to section 39-2.01C(3) of the RSS for section 39:
For RAP substitution greater than 15 percent of the aggregate blend, submit blending
calculation sheets and blending charts for high, intermediate, and low critical temperatures.
The blending calculation sheets and blending charts must be based on the MS-2 Asphalt Mix
Design Methods by the Asphalt Institute.
You may use critical temperatures of virgin binder or the maximum theoretical critical
temperature of the PG grade of the virgin binder.
Critical temperatures must be in whole degree.
The calculation sheets must be sealed and signed by an engineer who is registered as a civil
engineer in the State or by the AMRL-AASHTO-accredited laboratory manager responsible
for the calculations and blending charts.
Interpretation:
RAP binder will need to be graded at 110C and 100C PAV
Since PG64-10, PG64-16 are at 100 PAV and PG70-10 is at 110 PAV
9. ALON USA
Alon Asphalt Company
9
Add to the list of the paragraph of section 39-2.01D(5) of the RSS for section 39 with:
For RAP substitution greater than 15 percent of the aggregate blend, the asphalt binder grade
must comply with the specified binder grade. A tolerance of +2 degrees C may be applied to
the critical high and low temperatures of the blended binder. Original binder requirements,
ductility requirements, and footnote d in the table in the 1st paragraph in section 92-1.02B do
not apply in the determination of the PG binder grade using blending charts.
Interpretation:
If Target binder is PG70-10 and using blended chart which give a true grade of PG75-10.
Then with +2C Tolerance the binder can be accepted if tested as PG77-8. Per the PG grading
system it will be a PG76-0
10. ALON USA
Alon Asphalt Company
10
Add to section 39-2.02A(4)(b)(iii):
39-2.02A(4)(b)(iii)(iii) Virgin and Recovered Reclaimed Asphalt Pavement
Binder
Perform solvent extraction of RAP binder under AASHTO T 164, Method A, and
recovery under AASHTO R 59 or ASTM D1856. Test the quality characteristics of
the recovered RAP binder under the test methods and frequencies shown in the
following table:
Quality characteristic Test method Minimum testing frequency
Critical temperatures of RAP
binder
AASHTO T 315
and
AASHTO T 313
1 per project if RAP is not
augmented or 1 per 500 tons of
augmented RAP
If you use critical temperature of virgin binder in blending charts, test the quality
characteristics of the virgin binder under the test methods and frequencies shown in
the following table:
Quality characteristic Test method Minimum testing
frequency
Critical temperatures
of virgin binder
AASHTO T 315
and
AASHTO T 313
1 per 5 paving days or
1 per project,
whichever is greater
11. ALON USA
Alon Asphalt Company
11
• Questions?
• Discussions?
THANK YOU FOR YOUR TIME