Academic literature on the topic 'Performance grade (PG)'

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Journal articles on the topic "Performance grade (PG)"

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Al-Jumaily, Mohammed Hasan. "Adapting of Performance Grading System for Local Asphalt Cement." Kufa Journal of Engineering 2, no. 1 (2014): 1–16. http://dx.doi.org/10.30572/2018/kje/211293.

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The General Specifications for Roads and Bridges (SCRB) don't adopt the performance grading (PG) based system suggested by Superpave program to evaluate the currently used asphalt cements for paving works. The air temperature data used in this study covers approximately 20 years time period (1982-2002) for seven Iraqi cities (Kirkuk, Mosul , Rutba , Baghdad , Kut , Najaf , and Basrah) which represent climatically unique regions in Iraq. The currently used asphalt cements with penetration grades (40-50) and (60-70) were tested by both of conventional test methods and Superpave methods to determ
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Arshad, Hussain, and Yan Jun Qiu. "Evaluation of Local Asphalt Binders under Superpave Specification." Applied Mechanics and Materials 178-181 (May 2012): 1509–12. http://dx.doi.org/10.4028/www.scientific.net/amm.178-181.1509.

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Premature rutting due to high temperatures and heavy loads has been a major distress on flexible pavements in Pakistan. One of the main causes of this early rutting is the available asphalt binders, which are still graded by using penetration grading system. The penetration grading system is based on empirical tests and does not link with performance. To improve the quality of the flexible pavement and to avoid the premature rutting the performance based testings were conducting in laboratory. This study evaluated performance graded (PG) binders for use in pavement construction in the country.
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Bandapati, Madhavi, Sanket Goel, and Balaj Krishnamurthy. "Graphite electrodes as bioanodes for enzymatic glucose biofuel cell." Journal of Electrochemical Science and Engineering 10, no. 4 (2020): 385–98. http://dx.doi.org/10.5599/jese.807.

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This study investigates the performance of pencil graphite (PG) electrodes to identify the grade of pencil most suitable as bioanode for enzymatic glucose biofuel cell. Pencils of H, 3H, 5H and B grades are selected for this study. The surfaces of different grade PGs are modified with carboxylic acid functionalized multi walled carbon nanotubes (COOH-MW­CNT/PG), followed by immobilization with glucose oxidase (GOx) to fabricate the respect­tive bioanodes (GOx/COOH-MWCNT/PG). Morphological and electrochemical characteri­zations are carried out using scanning electron microscopy, electrochemical
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Chehab, Ghassan R., Yara S. Hamdar, and Angela J. Haddad. "Investigating High-Temperature PG Grade Adjustment Recommendations for Airfield Pavements." Transportation Research Record: Journal of the Transportation Research Board 2673, no. 5 (2019): 365–73. http://dx.doi.org/10.1177/0361198119838259.

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This study aims to investigate the high-temperature performance grade (PG) adjustment (bumping) recommendations included in various international specifications and guidelines for airfield pavements, particularly for asphalt intermediate and base layers. The research was instigated following recent asphalt rutting occurrences in airport pavements. Mechanistic analysis, using the software FlexPave™, was employed to assess airfield pavement responses under hot climatic conditions and for different loading conditions. The results of the analysis pointed to three important factors that should be c
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Eraky, Ahmed, H. S. Ayoub, Omar Osman, Mohamed E. Ouf, and Abdel Zaher E. A. Mostafa. "Improving the Performance Grade and Traffic Loading of Egyptian Asphalt Binders by Recycled Polyethylene Modification." IOP Conference Series: Earth and Environmental Science 1056, no. 1 (2022): 012041. http://dx.doi.org/10.1088/1755-1315/1056/1/012041.

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Abstract Recent SUPERPAVE technology allows assessment and performance grading (PG) of modified asphalts according to AASHTO T 350–14 and ASTM D7405-15 standards. These testing protocols use modified - multiple stress creep recovery (MSCR) test, to yield the high temperature PG and the traffic level of the asphalt binder. Latest AASHTO T 350–14 test protocol is used to assess two major Egyptian bitumen products, Alex and Suez (pen 60/70) before and after polymer modification. These standard products have different fractional composition since they are obtained from different local origins. Low
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Aszharri, Arief, and Nadra Mutiara Sari. "Viscous Elastic Asphalt Characteristics of Cariphalte Modification with Addition of Gilsonite Viewed from Phase Angle Value." CIVED 11, no. 2 (2024): 595–605. http://dx.doi.org/10.24036/cived.v11i2.575.

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Performance Grade (PG) Bitumen is bitumen that is graded based on its performance at different temperatures. In the Superpave grading system, asphalt binders are classified according to their performance in extreme hot and cold temperatures and are referred to as performance grade (PG) asphalt. The main objective of assessing and selecting asphalt binder using the PG system is to ensure that the binder has properties suitable for the environmental conditions in the field. Cariphalte is a premium grade polymer modified bitumen used in road and airport construction and other similar applications
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Torres, Alexandra. "Engineering Properties of Asphalt Binders from Different Sources and Their Influence on Stiffness of Asphalt Concrete Mixtures." Transportation Research Record: Journal of the Transportation Research Board 2673, no. 6 (2019): 396–405. http://dx.doi.org/10.1177/0361198119843482.

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The quality and quantity of asphalt binder are crucial for proper adhesion, cohesion, and performance of asphalt concrete (AC) mixtures. The current Superpave grading system for asphalt binders provides engineers with the high and low temperature ranges at which the asphalt binder should perform satisfactorily. The objectives of this study are to document the differences in the performance of different asphalt binders with the same nominal performance grade (PG) acquired from different refineries and to investigate the impact that binder properties may have on the stiffness of the AC mixes. To
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Sheng, Jiajia, Yinghao Miao, and Linbing Wang. "An Assessment of the Impact of Climate Change on Asphalt Binder Selection in East China Based on the ARIMA Model." Sustainability 15, no. 21 (2023): 15667. http://dx.doi.org/10.3390/su152115667.

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Temperature is a key factor considered in the selection of asphalt binders for asphalt pavement construction. Currently, the asphalt binders used in some regions’ asphalt pavements are no longer suitable for anticipated climate conditions. The reasonable selection of asphalt binder is an important measure for asphalt pavement to adapt to climate change. This paper focuses on the potential impact of climate change on asphalt binder selection in East China in the future. This study is based on the performance grade (PG) system with SUPERPAVE specifications. It involved collecting meteorological
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Nasir, Nur Indah Ririn Fitriani, Slamet Arifin, and Insar Damopolii. "The analysis of primary school student’s motivation toward science learning." Journal of Research in Instructional 3, no. 2 (2023): 258–70. http://dx.doi.org/10.30862/jri.v3i2.281.

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This research aims to analyze primary school students' motivation to learn science. Differences in student grades and gender were also examined in this research. The research has used survey methods. The survey was carried out on 97 students at one of the elementary schools in Malang City. The students who participated were those in grades 4, 5 and 6. A questionnaire containing 35 statement items measured students' motivation toward science learning. The analysis uses ANOVA to measure differences in motivation based on grade, gender, and interactions between grade and gender. There is no influ
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Jones, Stephen D., Kamyar C. Mahboub, R. Michael Anderson, and Hussain U. Bahia. "Applicability of Superpave to Modified Asphalts: A Mixture Study." Transportation Research Record: Journal of the Transportation Research Board 1630, no. 1 (1998): 42–50. http://dx.doi.org/10.3141/1630-06.

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Superpave binder and mixture specifications are currently being reviewed for their applicability to modified asphalts. This study was designed to evaluate a series of modified binders with the same Superpave performance grade (PG 76-22). The experiment was based on the following hypothesis: The performance characteristics for a given asphalt mixture will be the same for all PG 76-22 binders. The performance indicators analyzed in this study were obtained from a suite of laboratory mixture performance tests. The study, which also included a PG 64-22 asphalt to serve as the control, revealed tha
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Book chapters on the topic "Performance grade (PG)"

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Riccardi, C., A. Cannone Falchetto, M. P. Wistuba, and M. Losa. "Comparison of DSR and BBR tests for determining the Performance Grade (PG) of asphalt binder at low temperature." In Bearing Capacity of Roads, Railways and Airfields. CRC Press, 2017. http://dx.doi.org/10.1201/9781315100333-35.

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Conference papers on the topic "Performance grade (PG)"

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Schumerth, Dennis J. "A Thirty Year Service Exam: Titanium Tubed Surface Condensers." In International Joint Power Generation Conference collocated with TurboExpo 2003. ASMEDC, 2003. http://dx.doi.org/10.1115/ijpgc2003-40066.

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The first installation of Grade 2 titanium condenser tubing in a US powerplant occurred in the fall of 1971 as a partial retube of the then, PG&E Moss Landing Unit No. 7 generating station. At the time of this partial retube, “Mighty Moss” was the largest fossil powerplant in the USA generating 750 MWe. Conversely, the first complete titanium-tubed surface condenser installation occurred in 1972 at the 490 MWe ConEdison - Arthur Kill Unit #3. Following comparative testing of competing tube materials, a partial titanium retube, followed by a complete replacement of the remaining aluminum br
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Faisal, Hasan M., Zafrul Hakim Khan, and Rafiqul Tarefder. "Nano-Scale Binder Phase Identification in Asphalt Concrete." In ASME 2017 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2017. http://dx.doi.org/10.1115/imece2017-71762.

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Asphalt concrete (AC) consists of asphalt binder and aggregate. Aggregate consists of: coarse aggregate and fines. Asphalt binder creates a coating or film around the aggregate, which is defined as the binder phase of AC. Fines are believed to be trapped inside an asphalt film or mixed with asphalt binder, creating a composite material called mastic. Thus, AC has three phases: mastic, asphalt film binder, and coarse aggregate. All these phases play major roles in performance of AC. Researchers have performed various tests on asphalt binder at micro scale to understand the macro scale behavior
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Rose, Jerry G., Shushu Liu, and Reginald R. Souleyrette. "KENTRACK 4.0: A Railway Trackbed Structural Design Program." In 2014 Joint Rail Conference. American Society of Mechanical Engineers, 2014. http://dx.doi.org/10.1115/jrc2014-3752.

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The KENTRACK program is a finite element based railway trackbed structural design program that can be utilized to analyze trackbeds having various combinations of all-granular and asphalt-bound layered support. It is applicable for calculating compressive stresses at the top of subgrade, indicative of potential long-term trackbed settlement failure. Furthermore, for trackbeds containing an asphalt layer, it is applicable for calculating tensile strains at the bottom of the asphalt layer, indicative of potential fatigue cracking. The program was recently expanded to include both English and int
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Reports on the topic "Performance grade (PG)"

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Lee, Jusang, M. Reza Pouranian, Mohammed Ziaur Rahaman, Ayesha Shah, and John E. Haddock. Review of Indiana Asphalt Binders (In-Situ PG Grade Asphalt Determination). Purdue University, 2024. http://dx.doi.org/10.5703/1288284317721.

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In the face of multifaceted challenges such as asphalt pavement deterioration and the introduction of new LTPPBind versions, the Indiana Department of Transportation (INDOT) initiated a pivotal research project focusing on three primary areas. First, the study examined the implications of Performance Grade (PG) binder selections on pavement performance using AASHTOware Pavement Mechanistic-Empirical (ME) Design V 2.6. It revealed that PG selections, particularly those made by LTPPBind V 3.1 Desktop and Online, significantly influenced pavement performance, impacting thermal and bottom-up crack
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