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Showing 1 to 17 of 17 for “"hydration kinetics"”.
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Engineering Properties, Hydration Kinetics, and Carbon Capture in Sustainable Construction Materials
… calorimetry (IC) to quantify the heat of hydration of the mixture to assess the chemical aspects of the stabilization. Specifically, kaolin and bentonite clays were each blended with 40 % SFS by mass at water-to-binder ratios ranging from 1.0 to 1.5. The hydration properties of stabilized …
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Effects of Curing Temperature and Pressure on the Chemical, Physical, and Mechanical Properties of Portland Cement
… mainly focuses on studying the fundamental hydration kinetics and mechanisms of Portland cement as well as the effects of curing temperature and pressure on its various properties. An innovative test apparatus has been developed in this study to cure and test cement paste specimens under …
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Biomineralization in cement based materials : inoculation of vegetative cells
… paste properties, such as compressive strength, hydration kinetics, and setting time was evaluated. It was determined that the hydration kinetics was highly influenced when the bacterial medium was used to prepare cement paste, and severe retardation was observed. It was also observed that an …
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Activation of Release by Hydration in Pharmaceutical Tablets Studied by Terahertz Pulsed Imaging
… disintegrate (e.g. sustained release tablets), hydration of the oral solid dosage form still plays a critical role in activating the drug release. In this thesis, terahertz pulsed imaging (TPI) was used to investigate the hydration kinetics of pharmaceutical tablets in a one-dimensional liquid …
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Sustainable cementitious materials for building and sorption applications
… properties, including rheological properties, hydration kinetics, phase development, durability, and long-term behavior, as well as high cost of the material have limited CSA application in general construction purposes. AAMs contribute little or no CO<sub>2</sub> emission, while enabling …
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Prediction of early-age cracking of UHPC materials and structures : a thremo-chemo-mechanics approach
… high cement content and the highly exothermic hydration reaction. Because of the risk of early-age UHPC cracking, there is a need to develop a material model that captures the behavior of UHPC at early-ages. The objective of this research is to develop a new material model for early-age UHPC …
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Characterization and performance of eco and crack-free high-performance concrete for sustainable infrastructure
… correlations were developed to link the hydration kinetics of various binder systems to material performance in fresh state (rheological properties) and hardened state (strength gain and shrinkage cracking tendency). Results indicate that it is possible to design Eco-HPC with drying …
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Steam Cured Self-Consolidating Concrete and the Effects of Limestone Filler
… investigates the role of limestone filler on the hydration kinetics, mechanical properties (12 hours to 300 days), microstructural and durability performance (rapid chloride permeability, linear shrinkage, sulfate resistance, freeze-thaw resistance and salt scaling resistance) of various …
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The productive reuse of coal, biomass and co-fired fly ash
… C618 requirements, their impact on early-age hydration kinetics, rheology, setting time and permeability was assessed. Furthermore, the pozzolanic reactivity and the microstructural and hydrated phase development of the cement-ash samples were analyzed. The results show that a wood biomass ash …
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Nano-scale Glucose Fuel Cells for Energy Harvesting in the Human Body Based on Proton Conduction in Cerium Oxide
… proton conductivity is observed. Moreover, slow hydration kinetics, at the order of several days, is detected in ceria, which could explain the large discrepancies of observed proton conductivity in the literature to date. Finally, the structural properties of ceria deposited through spray …
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Time-Space-Resolved Raman Analysis of Structure-Property Relationships in Heterogeneous Structural Materials
… of C-S-H is analyzed, and the real-time hydration process of cementitious materials is visualized. The Raman spectrum of C-S-H obtained from insitu underwater Raman spectroscopy corroborates Gartner’s C-S-H model. Moreover, the earlystage cement hydration dynamics are visualized for the …
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Analysis of the Physiochemical Interactions of Recycled Materials in Concrete
… that there is an apparent retardation of cement hydration. This study also attempted to pretreat the RAP in a sodium hydroxide (NaOH) solution to pre-leach the organic compounds. The pretreatment demonstrated that organic compounds were leached and that NaOH modified the asphalt surface …
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CHICKPEA AQUAFABA AS AN EMULSIFIER IN FOOD-OIL SYSTEMS
… weight, seed coat incidence, seed dimensions, hydration kinetics, and proximate composition (moisture, ash, protein, fat, carbohydrate, and crude fibre) were also measured to determine possible correlations of these parameters with AQ emulsion properties. The effects of soaking and boiling of …
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Salt hydrates for thermochemical energy storage
… due to their high energy density, suitable dehydration temperatures and water vapour being a safe and cheap reaction partner. However, this method of thermal energy storage is yet to be fully developed or commercialized. The overarching aim of this work is to investigate salt hydrates for …
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Predictive Modeling and Durability Analysis of Low Carbon Concrete Incorporating Recycled Materials
… QB was found to perform best with improved hydration kinetics, similar pore solution composition, and strength gain reproducibility relative to a control with a conventional coal fly ash and limestone powder. The study emphasizes the role of proportioning and chemical compatibility towards …
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Hydration and air entrainment of fly ash concrete
Submission published under a 24 month embargo labeled 'Closed Access', the embargo will last until 2024-12-01
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Municipal solid waste incineration ashes: origin, composition, and reactivity in cementitious systems
This Thesis was approved for publication on 2021-06-29 at 09:56.