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Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 35 for “"Cracking resistance"”.
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Investigation of cracking resistance of recycled Superpave mixtures
… for premature pavement distresses, especially cracking. This research evaluated four recycled Superpave mixtures with different RAP and RAS contents from Kansas Department of Transportation projects. Two of the mixtures contained 10% RAP and 5% RAS, while the other two mixtures contained 25% …
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Solidification cracking resistance of high strength aluminum alloys
… Hence the evaluation of fracture toughness (cracking resistance) at different parts of ingot is very much essential to understand the propagation of cracks in ingots.;The objective of this research was to determine the cracking resistance of Al 2024 (Al-Cu-Mg) and Al 3004 (Al-Mn-Mg) alloys …
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Effect of nickel on sulfide stress cracking resistance in steels
Includes bibliographical references (pages 132-138).
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Sulfide stress cracking resistance of API-X100 high strength low alloy steel in H2S environments
Sulfide Stress Cracking (SSC) resistance of the newly developed API-X100 High Strength Low Alloy (HSLA) steel was investigated in the NACE TM0177 "A" solution. The NACE TM0177 "A" solution is a hydrogen sulfide (H2S) saturated solution containing 5.0 wt.% sodium chloride (NaC1) and 0.5 wt.% acetic …
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Investigating the performance requirements for proprietary concrete repair materials with respect to durability and cracking resistance
… failure of these overlays, often manifested by cracking and/or debonding, is common despite their widespread use. There are many repair standards, codes and technical guidelines for BCOs. The performance requirements for BCOs stated in these standards vary. This makes the specification of repair …
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Optimizing the content and gradation of recycled tyre rubber particles to improve cracking resistance of concrete mortars
… build-up of internal tensile stress. Shrinkage cracking often happens if the concrete mortar does not exhibit sufficient tensile strength to sustain these stresses. The ingress of aggressive agents that may cause further deterioration on structure becomes easier (Shazali et al., 2012). The …
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Investigation of the stress corrosion cracking resistance of SAF2205 and AISI304 weldments for the marine environment application
… of service life, maintenance, load and corrosion resistance.
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Performance Evaluation of Asphalt Mixtures with Tire Rubber Modified Binder
… means of dynamic modulus master curves, fatigue cracking, permanent deformation, and reflective cracking resistance. Dynamic modulus tests were conducted using the Asphalt Mixture Performance Tester (AMPT) device and the master curves were built using AASHTO R84 standard procedure for asphalt …
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Characterization of Polymer Modified Asphalt Binders Containing Processed Oil
… while the modifiers improve the rutting resistance of them, however, the addition of processed oil reduces the binder’s rutting performance due to decrement of viscosity. The study also found that the conjugating of modifying polymers and processed oil improves the low temperature …
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Elemental Effects of Fe, Mo, C, and Hf (or Nb) on Solidification Behavior, Microstructure, and Weldability of High-Cr, Ni-base Filler Metals
… primary water stress corrosion and ductility-dip cracking in Ni-Cr-Fe base materials and filler metals has led to increased Cr, Nb, and Mo contents in these alloys, respectively. Nb additions however, have resulted in a significant increase in the solidification cracking susceptibility of …
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Characterization of Concrete Pavement Joint Surfaces
… transfer shear load across crack/joint and the cracking resistance are important. This research was conducted in order to develop a testing method and roughness parameter that could better predict the shear load transfer across crack/joint. In addition, the research intended to improve both the …
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SYNERGISTIC EFFECT OF SHRINKAGE MITIGATING STRATEGIES ON PERFORMANCE OF FIBER-REINFORCED CEMENTITIOUS COMPOSITES
… strategies to reduce shrinkage and mitigate cracking of concrete is well documented. However, the benefits and drawbacks of employing multiple strategies have not been explored. The main objective of this study is to provide insights into the mechanisms of using multiple strategies to enhance …
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Analysis of Fine Asphalt Concrete Mixture Gradations from Various Sources to Enhance Durability
… content and therefore higher moisture damage resistance. This is because the finer aggregates tend to fill the voids that were otherwise not filled by the coarse aggregates. This will lead to enhanced durability because less water and air can penetrate the mix, leading to less oxidation and …
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Performance of asphalt mixtures containing steel slag aggregate and synthetic fibers
… rutting depth, moisture susceptibility, and cracking resistance. The findings of this study showed that the free lime and free magnesia content in the treated steel slag aggregate have significantly decreased. On the other hand, the asphalt mixtures incorporated coarse steel slag aggregate …
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Balancing asphalt mixes containing recycled materials for optimum field performance
… (RAP) and recycled asphalt shingle (RAS), the cracking resistance of asphalt pavements might be jeopardized. Therefore, such AC mixtures should be carefully investigated to ensure that performance is not compromised in the pursuit of an economical and sustainable solution. This study …
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High temperature cracking of nickel chromium austenitic steels.
… detailed classification of high temperature weld cracking is proposed. Two major types of cracking are recognised: Type 1 - separations along boundaries decorated with liquated second phase resulting from microsegregation, (solidification cracking in the weld metal and liquation cracking in the …
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Determination of special boundary coordination at quadruple nodes using EBSD
… in materials properties including corrosion and cracking resistance. Some grain boundaries are resistant to corrosion and cracking and are known as "special" boundaries. While the structure of individual grain boundaries is important, the connectivity of the grain boundaries largely determines …
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The Development of Initial Asphalt Mixture Acceptance Criteria Using the SCB test and the I-FIT Test
<p>Cracking has become the primary asphalt pavement distress in Arkansas. Arkansas along with other states have implemented a test to measure rutting resistance. This paper presents research to implement a cracking resistance test to further modify the Superpave volumetric asphalt mixture design …
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Innovative composite enamel coatings with improved abrasion resistance and mechanical properties
… properties, including durability, thermal resistance, and chemical resistance. Nowadays, vitreous enamels, which are silica- based inorganic coatings deposited by high temperature (580-890 °C) vitrification, are usually employed for the protection of metallic components that must show …
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Crystallographically consistent percolation theory for grain boundary networks
… important material properties including creep resistance, ductility and cracking resistance. Although the structure and properties of individual boundaries are important, the overall behavior of the material is determined largely by the connectivity of grain boundaries in the microstructure. …
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