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Showing 1 to 20 of 27 for “"indirect tensile strength"”.
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Evaluation of indirect tensile strength to identify asphalt concrete rutting potential
… potential can be evaluated by considering indirect tensile strength (IDT), compaction slope measured with the Superpave Gyratory compactor and voids in mineral aggregate (VMA). Anderson evaluated IDT strength at a deformation rate of 3.75 mm/min and 34°C, and used repeated shear …
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Analysis of Laboratory Testing Results and Performance Evaluation of Recycled Asphalt Pavements (Flexural Fatigue, Creep Compliance)
… beam flexural fatigue, creep compliance, indirect tensile strength, Marshall mixture design and asphalt cement properties.
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Laboratory Comparison of Full Depth Reclamation Stabilization Techniques Using Arkansas Field Materials
… stabilizer contents were determined using the indirect tensile strength test for asphalt emulsion and asphalt foam stabilization and the unconfined compressive strength test was used for the cement stabilized samples. Once the mix designs were validated and optimal contents were determined, …
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Development of Antioxidant Treatments for Asphalt Binders and Mixtures
… creep compliance, dynamic complex modulus, indirect tensile strength, fracture energy, and moisture susceptibility testing. The results of the study indicate that asphalt aging could be reduced significantly through the use of antioxidant treatments developed during the research.
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Laboratory evaluation of asphalt-portland cement concrete composite
… evaluated physical properties include stability, indirect tensile strength, compressive strength, and resilient modulus, while the evaluated durability properties include water sensitivity, freeze-thaw and chloride intrusion resistance. Specimens were also tested for different moist curing levels …
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Lignosulfonate as an Alternative Filler in Bitumen Stabilised Materials (BSMs)
… commonly used in construction. Its binding and strength properties makes it suitable for use in various construction works such as building of houses, roads and bridges. It is actually impossible to imagine a world without cement. However, the cost of cement is increasing with time such that it …
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Comparative Evaluation of Field and Laboratory-Produced Foamed Asphalt Mixture from Reno, Nevada
… of measuring the dynamic modulus |E*| and the indirect tensile strength as a function of multiple freeze-thaw cycling. The resistance of the mixtures to permanent deformation was evaluated through the use of the repeated load triaxial (RLT) to measure the flow number (FN). The low-temperature …
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Laboratory Evaluation of Warm Mix Asphalt Mixtures in South Dakota, USA
… differences were found when comparing indirect tensile strength (ITS) values for laboratory- produced mixtures. None of the WMA additives performed as well as the HMA. However, WMA mixtures exhibited satisfactory moisture damage resistance when comparing their result to HMA mixtures …
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Comprehensive Evaluation of Asphalt Mixtures in Arid Climatic conditions
… finalized mix designs was evaluated through the indirect tensile strength ratio (TSR), Hamburg wheel-track test (HWTT), dynamic modulus (|E*| referred to as E*), cyclic fatigue (CF), and stress sweep rutting (SSR), at unconditioned (UC) and moisture-conditioned states at one freeze-thaw cycle …
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Asphalt Perpetual Pavement Design: Utilizing Existing Pavement Systems in Ohio
… (DCP) tests were performed; in addition, Indirect Tensile Strength (IDT) and Resilient Modulus (E) tests were performed in the laboratory. In 2012, five of those sites were selected to perform and verify the test results. The results were similar which validated the data from 2010. FWD …
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Performance Characteristics of Polyethylene Terephthalate (PET) Modified Asphalt
… rutting test, retrofitted APA Hamburg test, Indirect Tensile Strength (ITS), and Asphalt mixture Performance Tester (AMPT) dynamic modulus. The results showed: 1) the addition of PET increased the high temperature performance resulting in a bump in PG grade. Additionally, the viscosity and …
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Performance Characterization of Recycled Asphalt Pavements with Warm Mix Asphalt Technologies
… of the mixtures were evaluated by performing the indirect tensile strength test for 0 and 1 freeze-thaw cycles. Resistance to rutting was evaluated by determining flow number using the Asphalt Mixture Performance Tester (AMPT) machine. Finally, thermal resistance of the mixtures were evaluated by …
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Laboratory Investigation of Shear Behaviour in Rock Joints Under Varying Boundary Conditions
… the mechanical properties (e.g. stiffness, strength, and dilation) of rockmass discontinuities, which are used as inputs for numerical geotechnical design, is through laboratory direct shear testing. Direct shear testing is typically conducted using two different boundary conditions: …
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Influencia de la compactación y conservación de probetas durante su permanencia en obra, así como su posterior refrentado en la resistencia a compresión del hormigón (período 1997-2007)
… para la resistencia a compresion, traccion indirecta, penetracion de agua bajo presion y velocidad de propagacion de los ultrasonidos en probetas de hormigon. ABSTRACT Concrete in Spain have had a period of glory in its use in building, specially in Madrid, from 1997 to 2007. Not only …
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Enhanced Laboratory Testing and Characterization Related to the Mechanics of Anisotropic Rock
… a high degree of accuracy and repeatability. Tensile strength is commonly measured via the indirect tensile strength test, intact elastic components and compressive strength are measured via the unconfined compressive strength test, and joint deformation is measured via the direct shear test. …
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Cold In-Place Recycling with Expanded Asphalt Mix (CIREAM)
… and other methods. Although CIREAM offers early strength advantages and extended paving periods among other benefits, late season CIREAM can be burdened by distresses such as ravelling, potholing and other moisture-induced damage. Limited information on the behaviour and failure mechanisms of …
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Material Characteristics of Hot Mix Asphalt and Binder Using Freeze-Thaw Conditioning
… life. In concurrence with the flexure test, indirect tensile (IDT) strength test is performed on the same mix with similar freeze-thaw conditioning to determine the reduction in the strength of HMA. Furthermore, Bending Beam Rheometer (BBR) test is performed on the binder that is used for the …
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Evaluation of Evotherm as a WMA technology compaction and anti-strip additive
… of this research was achieved by running indirect tensile strength (ITS), dynamic modulus and Hamburg wheel track tests. The main conclusions of this study are as follows:</p> <p>1. As a WMA compaction technology additive, either additive type (J1-0.5%, J1-1.0%, M1-0.5% and M1-1.0%) can be …
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The Use of Atomic Force Microscopy in Evaluating Warm Mix Asphalt
… of binders this could be related to the lower indirect tensile strength that were obtained for the Sasobit mixtures. The adhesive forces were reduced after conditioning of the control and WMA PG 64-22 binders. Sasobit and Advera had the highest reduction which could be related to the inferior …
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Evaluation of bonded concrete overlays on asphalt pavements
… Concrete samples were tested for compressive strength, split-tension strength, and coefficient of thermal expansion. Asphalt samples were characterized by their bulk specific gravity, Hamburg wheel testing device, and indirect tensile strength. The shear strength and bond failure mechanism …
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