Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
Results
Showing 1 to 20 of 113 for “"mix design"”.
-
Balanced Mix Design of Asphalt Mixtures for Intersections
… Realizing the need for different asphalt mixtures at or near intersections, a past cooperative research between University of Nevada, Reno (UNR) and Nevada Department of Transportation (NDOT) recommended a new gradation specification to be used at intersections. The unique features of the …
-
Digital Mix Design for Performance Optimization of Asphalt Mixture
Asphalt mix design includes the determination of a gradation, asphalt content, other volumetric properties, the evaluation of mechanical properties and moisture damage potentials. In this study, a computational method is developed to aid mix design. Discrete element method (DEM) was used to …
-
Laboratory assessment of asphalt concrete durability utilizing balance mix design
… environmental impacts. However, in the current design practice for AC materials, little attention is given to study AC performance and its implications for future durability. Additionally, budget and ecological constraints are continually requiring of pavement engineers to include increasing …
-
Hveem Mix Design and Engineering Properties of Cold In-Place Recycling Mixtures
… of a performance-based criteria for CIR mix design is imperative to keep improving the overall conditions of the state roads. This study is part of a research based on developing new criteria for CIR mix design and construction in the state of Nevada. The objectives of this study were: a) …
-
Mix design and testing improvements for 3D printable concrete mixtures with fibers
… on formwork filled with a flowable concrete mixture. This is simple and effective, but formwork is costly. There has been a recent body of research and small industry in vertical concrete construction using a filament 3D printing technique for small structures, thus eliminating formwork. …
-
Optimization of asphalt concrete mix design to control cracking and rutting potential
Submission published under a 24 month embargo labeled 'Closed Access', the embargo will last until 2024-12-01
-
The influence of mix design parameters and compressive strenght on durability indices
Current concrete specifications used in mix design are mainly of the prescriptive type, i.e.recipe-based specifications that prescribe limiting values for certain mix design parameters such as minimum binder content, maximum water/binder (w/b) ratio and minimum compressive strength class. This has …
-
Seed mix design and application to overcome seed limitation in floodplain forest restorations
… of reference sites for use in restoration seed mixes. This methodological approach highlighted significant differences in various ecological traits between species of reference and restored sites and revealed the inadequacy of commercial seed mixes in representing these indicator species. My …
-
Balanced asphalt mix design and pavement distress predictive models based on machine learning
Traditional asphalt mix design procedures are empirical and need random and lengthy trials in a laboratory, which can cost much labor, material resources, and finance. The initiative (Material Genome initiative) was launched by President Obama to revitalize American manufacturing. To achieve the …
-
Improving the Sustainability of Performance-Based Concrete Overlay Mix Design made with Rounded Aggregate
… Conventional prescriptive concrete overlay designs are often inflexible, limiting the use of new materials and failing to address region-specific performance needs. This research aims to develop performance-based concrete overlay mix designs using locally available rounded aggregates, such …
-
Automation of the Superpave mix design process for the West Virginia Division of Highways
… nation's bituminous roadways were predominantly designed using either the Marshall or Hveem method. The Superior Performing Asphalt Pavements (Superpave)(TM) method was later developed to address the issues of increased traffic volumes and heavier loads on the nation's roadways. This new mix …
-
Influence of mix design parameters on restrained shrinkage cracking in non-structural concrete patch repair mortars
… and consistent information on the effects of mix design parameters, and their corresponding interactions, on restrained shrinkage cracking in non-structural concrete patch repair mortars (PRMs). This dearth of information makes the design and development of PRMs with improved resistance to …
-
Short-term Comparison of Frictional Properties of Superpave and Balance Mix Design Hot Mix Asphalt Mixes
Hot Mix Asphalt (HMA) design has undergone years of development. Currently, many state agencies use the Superpave mix design method. While the Superpave mix design improved rutting, the implemented level 1 only considered volumetric properties and not mixture performance tests. Therefore, …
-
Comparison of Marshall Compactor and Superpave Gyratory Compactor for Mix Design and Control of Airport Asphalt Mixtures
… level of 50 blows or gyrations for asphalt mixtures for airfield pavements serving aircraft of 60,000 pounds or less, and 75 blows or gyrations for mixtures to support aircraft weighing more than 60,000 pounds, respectively. The Marshall hammer compaction was used for many decades prior to …
-
Mix design, fresh and hardened properties and microstructural characterisation of alkali-activated concrete based on PFA/GGBS blends
… The absence of a widely accepted standardised mix design method for AAC also limits its commercialisation. Moreover, some technical problems such as the need for elevated temperature curing and the lack of sufficient data on both hardened and fresh properties of AAC among others played a major …
-
Influence of Curing Temperature on Strength of Cement-treated Soil and Investigation of Optimum Mix Design for the Wet Method of Deep Mixing
The Deep Mixing Method (DMM) is a widely used, in-situ ground improvement technique that modifies and improves the engineering properties of soil by blending the soil with a cementitious binder. Laboratory specimens were prepared to represent soil improved by the wet method of deep mixing, in which …
-
Comparison of 19mm Superpave and Marshall Base II mixes in West Virginia
… Pavements (Superpave(TM)) asphalt concrete mix design method was developed through Strategic Highway Program (SHRP) in 1993. With the introduction of Superpave mix design, the Marshall method of mix design is becoming obsolete for highway pavements. Superpave implementation varies by state. …
Page 1 of 6