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Showing 1 to 20 of 106 for “"cementitious materials"”.
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Microwave curing of cementitious materials
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Civil and Environmental Engineering, 1993.
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Sustainable cementitious materials for building and sorption applications
… for specific applications. Two sustainable cementitious materials that are frequently researched as an alternative to OPC are calcium sulfoaluminate (CSA) cement and alkali-activated materials (AAMs). CSA cement lowers CO<sub>2</sub> emission by over 40% compared to OPC, and it is …
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Biomimetic vascular self-healing systems for cementitious materials
… Most of infrastructure is made out of cementitious materials. But, the fact is, they all crack, no matter how carefully they are stored or reinforced. Most of the damaged cementitious structures will end up being replaced and reconstructed. To address this national critical challenge, …
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Monitoring Early Age Cementitious Materials Using Ultrasonic Guided Waves
… times and compressive strength of early age cementitious materials can be monitored using ultrasonic guided waves.
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Design and Properties of Cementitious Materials Substituted by Recycled Waste Aggregates
L'abstract è presente nell'allegato / the abstract is in the attachment
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Micro-Mechanics Based Representative Volume Element Modeling Of Heterogeneous Cementitious Materials
… of the effective elastic properties of cementitious materials through a voxel based FEA approach. Voxels are generated for a heterogeneous cementitious material (Type-I cement) consisting of typical volume fractions of various constituent phases from digital microstructures. The …
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Moisture transport in cementitious materials via x-ray radiography and PINN
Submission published under a 24 month embargo labeled 'Closed Access', the embargo will last until 2027-05-01
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Understanding ureolytic calcium carbonate biomineralization for crack repair in cementitious materials
… bacteria-induced mineral precipitation occurs in cementitious material and how it can potentially remediate cracks in cementitious material. Furthermore, for the first time, the duration of treatment was discovered to be one of the most influential factors based on research results.
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Ultrasonic nondestructive evaluation and imaging of defects in reinforced cementitious materials
… assessment of discontinuities in reinforced cementitious materials. Due to the heterogeneous nature of concrete, ultrasonic waves are highly scattered and attenuated, leading to the difficulty of concrete inspection using conventional ultrasonic techniques, including those that work well on …
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Mechanical And Computational Evaluation Of Cementitious Materials With Hollow Glass Microsphere Inclusions
The effect of volumetric replacement of cementitious materials by an inert filler known as hollow glass microspheres on elastic properties is evaluated in this study through a combined computational and experimental approach. This approach considered the variation in properties of type I Portland …
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Micromechanical modelling of the fracture behavior of second-phase reinforced cementitious materials
Thesis: Ph. D., Massachusetts Institute of Technology, Department of Civil Engineering, 1990
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EFFECTS OF DEICING SALTS ON THE DURABILITY OF CONCRETE INCORPORATING SUPPLEMENTARY CEMENTITIOUS MATERIALS
… mixtures incorporating one of two supplementary cementitious materials (SCMs), slag cement or Class C fly ash, exposed to sodium chloride (NaCl), calcium chloride (CaCl2), or magnesium chloride (MgCl2) is evaluated based on damage due to wetting and drying and scaling, with the goal of …
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Prediction of erosion in cementitious materials subject to high thermal and pressure loading
The project is a collaboration between the University of Central Lancashire and British Aerospace Warton concerned with the modelling of onset of failure in limestone concrete, due to hot jet exhaust gases impinging on the concrete surface. The temperature distribution was produced using a constant …
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Interfacial transition zone composition and bonding in cementitious materials with asphalt-coated particles
… of significant availability of stockpiles of RAP materials. While previous research has primarily focused on the mechanical and durability properties of concrete with RAP aggregates, this research investigates the microstructural changes that RAP aggregates produce as well as the large-scale …
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Quantification of bond strength between cementitious materials and microbially-induced calcium carbonate precipitates
… precipitation to fill and seal cracks in cementitious materials. However, the mechanical strength of microbially-induced crack healing is seldom investigated, especially at the fundamental level. In an effort to aid future development of structural repairs using this technique, the …
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Measuring and Modeling the Time-Dependent Response of Cementitious Materials to Internal Stresses
… short-term time-dependent response of saturated cementitious materials to hydrostatic pressure as related to internal stresses and the rate of fluid flow within the material. The primary finding from this thesis is that the transient deformation of concrete or cement paste may effectively be …
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Fundamental Understanding of NOx Sequestration Capacity And Pathways in Nano-TiO2 Engineered Cementitious Materials
… of titania (TiO2) nanoparticles into cementitious materials. Air purification by TiO2-based cementitious materials occurs by photocatalysts that capture nitrogen oxide species (NOx) from the atmosphere, then oxidizing them into nitrite and nitrate species. Because nitrite- and …
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Design and synthesis of microcapsules using microfluidics for autonomic self-healing in cementitious materials
A capsule-based self-healing cementitious material, capable of autonomically repairing its own cracks, can extend the service life of concrete structures and decrease the costs associate with repair and maintenance actions. However, the size, shell thickness, shell material and mechanical …
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Fresh Mix Properties and Flexural Analysis with Digital Image Correlation of Additively Manufactured Cementitious Materials
… civil infrastructure applications, particularly cementitious materials. To ensure the safety, health, and welfare of the public, quality assurance and quality control (QA/QC) methods via standardized testing procedures are of the upmost importance. However, QA/QC methods for these applications …
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