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Interlayer Stress Absorbing Composite Isac For Mitigating Reflection Cracking In Asphalt Concrete Overlays
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Book Synopsis Interlayer Stress Absorbing Composite (ISAC) for Mitigating Reflection Cracking in Asphalt Concrete Overlays by : M. T. Mukhtar
Download or read book Interlayer Stress Absorbing Composite (ISAC) for Mitigating Reflection Cracking in Asphalt Concrete Overlays written by M. T. Mukhtar and published by . This book was released on 1996 with total page 266 pages. Available in PDF, EPUB and Kindle. Book excerpt: To approach the reflection cracking problem in asphalt concrete (AC) overlays systematically the properties of the materials intended to be used in an interlayer stress absorbing composite (ISAC) system were first identified. Various thermal/structural models and laboratory equipment were used for this purpose. A number of woven and nonwoven geotextiles were selected and tested for their engineering properties such as tensile strength, initial modulus, modulus at failure, and percent shrinkage. Several samples of rubber asphalt were prepared by blending different ratios of crumb rubber with various types and ratios of asphalt cements at 400 deg F. These rubber asphalts were tested at different temperatures and the effects of temperature and rate of deformation on their stiffness were evaluated. An ISAC layer was fabricated in the laboratory using the materials considered appropriate. Testing equipment was developed to evaluate the interfacial shear strength and laboratory testing was performed to determine the shear strength of the fabricated ISAC layer under an AC overlay. The ISAC layer was evaluated for its effectiveness against reflection cracking. A laboratory pavement section with an AC overlay over a jointed portland cement concrete slab was constructed and placed in an environmental chamber. A mechanical device was used to simulate thermal strain in the slab and the joint was opened and closed at an extremely slow rate. The testing was conducted at 30 deg F and deterioration in the overlay was monitored using a sensitive LVDT device. The results from the laboratory evaluation testing program indicated that the ISAC layer was highly effective in preventing reflection cracking in a 2.5-in. AC overlay. When compared to a control test section and a section using a commercially available reflection cracking control material, the ISAC layer provided for superior performance. A field pavement test section utilizing the ISAC layer was constructed in the Summer of 1994 and field evaluation is ongoing.
Book Synopsis Interlayer Stress Absorbing Composite (ISAC) for Mitigating Reflection Cracking in Asphalt Concrete Overlays by : Muhammad Tahir Mukhtar
Download or read book Interlayer Stress Absorbing Composite (ISAC) for Mitigating Reflection Cracking in Asphalt Concrete Overlays written by Muhammad Tahir Mukhtar and published by . This book was released on 1994 with total page 462 pages. Available in PDF, EPUB and Kindle. Book excerpt: This study deals with the design of a composite material which could effectively alleviate/mitigate the problem of reflection cracking in an AC overlay. After reviewing various case histories and having identified the problem areas in the treatments currently in use, a composite material consisting of two geotextile layers containing a thin viscoelastic rubber asphalt layer named, "Interlayer Stress Absorbing Composite (ISAC)" was proposed. To approach the design problem of the ISAC system effectively properties of the materials intended to be used in the system were first identified. Various models and laboratory testing procedures were used for this purpose. A Climate-Materials-Structural (CMS) pavement model was used to establish the pavement temperature range in Northern Illinois. A number of geotextiles were selected and tested for their engineering properties. Several samples of rubber asphalt were prepared by blending various ratios of crumb rubber with different types and ratios of asphalt cements. These materials were tested at different temperatures and the effects of temperature and rate of deformation on stiffness were investigated. After having selected the materials suitable for the ISAC system, based on their properties, a prototype ISAC system was fabricated in the laboratory and was then checked against slippage under an overlay with a vehicle making a sharp turn or applying sudden brakes. The computer program "CIRCLY" was used for this purpose. Testing equipment was developed to evaluate the interfacial shear strength and laboratory testing was performed to determine the shear strength of the fabricated ISAC layer under an AC overlay. Required stiffens was achieved in the ISAC core material by adding hydrated lime in the rubber asphalt. After completion of the component property testing program, the ISAC layer was fabricated and prepared for laboratory evaluation. A testing device was developed in the laboratory that simulated field conditions to evaluate an AC overlay over a cracked PCC slab with and without an ISAC system. The performance of the ISAC system was evaluated by comparing crack growth in the overlay of a control pavement section with that in an overlay over the ISAC treated PCC slab.
Book Synopsis Performance Evaluation and Technical Requirement of Interlayer Stress Absorbing Composite Sticker (ISACS) for Mitigating Reflective Cracking in Asphalt Concrete Overlays by : X. Y. Zhu
Download or read book Performance Evaluation and Technical Requirement of Interlayer Stress Absorbing Composite Sticker (ISACS) for Mitigating Reflective Cracking in Asphalt Concrete Overlays written by X. Y. Zhu and published by . This book was released on 2016 with total page 12 pages. Available in PDF, EPUB and Kindle. Book excerpt: In order to establish the technical standard system of an interlayer stress absorbing composite sticker (ISACS), technical indexes including thickness, mass per unit area, tensile force, and corresponding elongation rate, performance after thermal aging test, and low-temperature flexibility were developed based on the study of relevant waterproofing membrane tests and the serviceability of ISACS. Six samples of ISACS made of three different kinds of materials, including glass fiber, polypropylene, and nonwoven geotextile were tested. The results showed that ISACS made of polypropylene has too high % elongation and very poor thermal aging capacity, ISACS made of nonwoven geotextile has too low a tensile strength, while ISACS made of glass fiber presented very good mechanical and thermal properties. Therefore, it was concluded that glass fiber is especially suitable for ISACS among these three kinds of materials. A technical requirement was also developed based on the above test results and reference to the standards of waterproofing membranes.
Book Synopsis Evaluation of the Interlayer Stress-absorbing Composite (ISAC) to Mitigate Reflective Cracking in Asphaltic Concrete Overlays by : Khader Abu Al-eis
Download or read book Evaluation of the Interlayer Stress-absorbing Composite (ISAC) to Mitigate Reflective Cracking in Asphaltic Concrete Overlays written by Khader Abu Al-eis and published by . This book was released on 2004 with total page 8 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis An Evaluation of Interlayer Stress Absorbing Composite (ISAC) Reflective Crack Relief System by : Joseph W. Vespa
Download or read book An Evaluation of Interlayer Stress Absorbing Composite (ISAC) Reflective Crack Relief System written by Joseph W. Vespa and published by . This book was released on 2005 with total page 64 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Pavement Cracking by : Imad L. Al-Qadi
Download or read book Pavement Cracking written by Imad L. Al-Qadi and published by CRC Press. This book was released on 2008-07-30 with total page 932 pages. Available in PDF, EPUB and Kindle. Book excerpt: Internationally, much attention is given to causes, prevention, and rehabilitation of cracking in concrete, flexible, and composite pavements. The Sixth RILEMInternational Conference on Cracking in Pavements (Chicago, June 16-18, 2008) provided a forum for discussion of recent developments and research results.This book is a collection of papers fr
Book Synopsis PRO 11: 4th International RILEM Conference on Reflective Cracking in Pavement Research in Practice by : A. O. Abd El Halim
Download or read book PRO 11: 4th International RILEM Conference on Reflective Cracking in Pavement Research in Practice written by A. O. Abd El Halim and published by RILEM Publications. This book was released on 2000 with total page 576 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Finite Element Analyses of Reflective Cracking in Asphalt Concrete Overlays by : Rongzong Wu
Download or read book Finite Element Analyses of Reflective Cracking in Asphalt Concrete Overlays written by Rongzong Wu and published by . This book was released on 2005 with total page 672 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis A Program to Design Asphalt Concrete Overlays to Mitigate Reflection Cracking by : Sindhu Satyanarayana Rao
Download or read book A Program to Design Asphalt Concrete Overlays to Mitigate Reflection Cracking written by Sindhu Satyanarayana Rao and published by . This book was released on 2002 with total page 140 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Flexible Overlays for Rigid Pavements by : Thomas Bennert
Download or read book Flexible Overlays for Rigid Pavements written by Thomas Bennert and published by . This book was released on 2010 with total page 160 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Minimizing Reflection Cracking of Pavement Overlays by : George Sherman
Download or read book Minimizing Reflection Cracking of Pavement Overlays written by George Sherman and published by . This book was released on 1982 with total page 48 pages. Available in PDF, EPUB and Kindle. Book excerpt: "This synthesis will be of special interest to pavement designers, materials specialists, maintenance engineers, and others concerned with the performance of pavement overlays. Methods are presented for reducing reflection cracking in overlays."--Avant-propos.
Book Synopsis Aircraft/pavement Technology by : Frank V. Hermann
Download or read book Aircraft/pavement Technology written by Frank V. Hermann and published by . This book was released on 1997 with total page 408 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Civil Engineering Studies written by and published by . This book was released on 1995 with total page 696 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Some Considerations on Reflection Cracking in Asphalt Concrete Overlay Pavements by : Nicolaas François Coetzee
Download or read book Some Considerations on Reflection Cracking in Asphalt Concrete Overlay Pavements written by Nicolaas François Coetzee and published by . This book was released on 1975 with total page 340 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Dissertation Abstracts International by :
Download or read book Dissertation Abstracts International written by and published by . This book was released on 1998 with total page 716 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Textile Technology Digest written by and published by . This book was released on 1998 with total page 774 pages. Available in PDF, EPUB and Kindle. Book excerpt:
