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Showing 1 to 14 of 14 for “"tensile strength ratio"”.
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Performance Comparison of PG 64-22 versus PG 64-28 Asphalt in Hot Mix Asphalt Placed in Connecticut
… PG temperature, critical cracking temperature, tensile strength ratio, and APA rutting. In order to compare the performance of PG 64-22 and PG 64-28 asphalt, the field performance data and laboratory parameters have been statistically analyzed and compared. It was found that the field cracking, …
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Evaluation of the IDEAL-CT for Hveem-Designed Asphalt Mixtures in Nevada
… applicability and effectiveness of the Indirect Tensile Asphalt Cracking Test (IDEAL-CT) for Hveem designed asphalt mixtures in the State of Nevada. While IDEAL-CT has traditionally been applied to Superpave Gyratory Compacted (SGC) specimens; this study investigates its use with Hveem-compacted …
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Laboratory and Field Evaluation of Two Warm-Mix Additives in Connecticut and Validation of an Alternative Moisture Susceptibility Test
… Bending, Hamburg Wheel Tracking, Indirect Tensile, and Disk Compact Tension. The results from the WMA specimens are also compared against conventional HMA specimens. Finally, the paper presents the performance data from all three test sections after the first winter season and correlates …
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Development of Stage-I tempered high strength cast steel for ground engaging tools
… of this project is to develop advanced next-generation alloy choices that outperforms the existing GET materials. A method of predicting tempered hardness of mixed microstructures was formulated. Using this model, two alloy series viz. <em>Cr-Ni-Mo </em>and <em>Mn-Si-Mo-V </em>were proposed and …
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Performance evaluation of warm mix asphalt mixtures incorporating reclaimed asphalt pavement
… improved compaction, and possible RAP concentration increases. RAP is the primary recycled product of the aged asphalt concrete pavements and its use leads to reductions in virgin aggregate and asphalt demand. However, significant performance issues can stem from the individual integration of …
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Performance Evaluation of Asphalt Mixtures with Tire Rubber Modified Binder
… Superpave standard method and evaluated using Tensile Strength Ratio (TSR) criteria for moisture sensitivity. The type of binder played a role in the determination of the optimum binder content. The TSR for all mixtures were greater than 90% which indicates that the asphalt mixtures designed …
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Asphalt binder and mixture performance using Batu Pahat soft clay as modifier
… for this survey included the use of four BPSC ratios (2, 4, 6 and 8%) according to the weight of bitumen. A design for the hot mix asphalt was executed by using the Superpave method for each additive ratio. However, using soft clay as filler to modify asphalt binder and mixture was not …
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Hveem Mix Design and Engineering Properties of Cold In-Place Recycling Mixtures
… with some modifications and evaluated using Tensile Strength Ratio (TSR) criteria for moisture sensitivity. The results were compared with a previous study using the same materials and designed following Superpave Gyratory method. The type of emulsion and gradation play important roles in the …
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The Use of Atomic Force Microscopy in Evaluating Warm Mix Asphalt
… 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 tensile …
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Comprehensive Evaluation of Asphalt Mixtures in Arid Climatic conditions
… have further accelerated the raveling and deterioration of the in-service asphalt pavements. Combating this issue requires sophisticated asphalt mixture designing. Therefore, very recently, Kuwait has adopted the Qatari Superpave mix design procedure to improve the current condition of the asphalt …
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PERMEABILITY AND MOISTURE DAMAGE CHARACTERISTICS OF ASPHALT PAVEMENTS
… a sample is wet conditioned using vacuum saturation and then subjected to one cycle of freeze-thaw. A set of three wet and three dry conditioned samples are tested for indirect tensile strength and Tensile Strength Ratio (TSR) of wet to dry sample sets is determined. It is shown that both MIST …
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On Dynamic Modulus of Asphalt Concrete for Moisture Damage
… test. According to AASHTO T 283 method, indirect tensile strength ratio of wet to dry samples is used as an indicator of moisture damage performance of a HMA mix. The AASHTO T 283 is a simple method, but it is not very reliable. In some cases, it gives false negative and positive values about the …
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Nano-scale evaluation of moisture damage in asphalt
… developed a methodology for asphalt sample preparation for AFM testing. Simply, pouring asphalt binder on a glass substrate and melting to free flow and then cooling it generates an AFM asphalt sample with a root mean square surface roughness below 10 nm. Such sample surface is smooth enough for …
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Impact of Anti-Strip Additives on Performance of Asphalt Pavements
… of the HMA mixtures as measured by the tensile strength ratio (TSR) following AASHTO T283 method. However, as the mixtures were subjected to further moisture damage induced through multiple freeze-thaw (F-T) cycling, the un-treated and liquid-treated mixtures had significantly reduced …