A5041180711- Innovative concrete reinforcement materials
- Concrete and Cement Materials Research
- Microbial Applications in Construction Materials
- Innovations in Concrete and Construction Materials
- Grouting, Rheology, and Soil Mechanics
- Structural Behavior of Reinforced Concrete
- Polymer composites and self-healing
- Concrete Corrosion and Durability
- Concrete Properties and Behavior
- Recycled Aggregate Concrete Performance
- Tailings Management and Properties
- Fire effects on concrete materials
- Magnesium Oxide Properties and Applications
- Synthetic Organic Chemistry Methods
- Smart Materials for Construction
- Analytical Chemistry and Sensors
- Recycling and utilization of industrial and municipal waste in materials production
- Infrastructure Maintenance and Monitoring
- Geotechnical Engineering and Soil Stabilization
- Bone fractures and treatments
- BIM and Construction Integration
- Municipal Solid Waste Management
- Elbow and Forearm Trauma Treatment
- Nonlocal and gradient elasticity in micro/nano structures
- Soft Robotics and Applications
University of Hertfordshire
2018-2024
Indian Institute of Technology Madras
2024
Ghent University
2024
University of Cambridge
2013-2019
Cardiff University
2006-2016
Frederick University
2009-2015
University of Cyprus
2009-2012
Laing O'Rourke (United Kingdom)
2011
General Hospital of Attica
2007
• Sodium silicate solution was impregnated in lightweight aggregates (LWA). Impregnated LWA were coated then embedded concrete specimens. Strength regain remarkable for specimens with the LWA. Capillary water absorption significantly improved produced rich silica C–S–H to heal cracks. This study investigated a technique of impregnating potential self-healing agents into (LWA) and performance mixed Lightweight diameter range 4–8 mm sodium as agent. Concrete containing control pre-cracked up...
Spherical polymeric microcapsules, carrying liquid sodium silicate, were used for autonomic self-healing of mortars. Microcapsules added at varying volume fractions (Vf), with respect to the cement volume, from as low 4% up 32% and their effect on fresh, mechanical properties was investigated. For this purpose a series techniques ranging static testing, ultrasonic measurements, capillary sorption tests optical microscopy. A detailed investigation also carried out microstructural level...
Cement-based materials possess an inherent autogenous self-healing capability allowing them to seal, and potentially heal, microcracks. This can be improved through the addition of microencapsulated healing agents for autonomic self-healing. The fundamental principle this mechanism is that when cracks propagate in cementitious matrix, they rupture dispersed capsules their content (cargo material) released into crack volume. Various have been explored literature efficacy recover mechanical...
This study presents the application of encapsulated expansive powder minerals (magnesium oxide, bentonite and quicklime) for self-healing cement-based mortars. A system concentric glass macrocapsules was used to envelope (outer capsule) water (inner capsule). Mortar samples containing with different mineral combinations were cracked healed under three curing regimes; ambient conditions, high humidity exposure immersed in water. Self-healing assessed based on visual crack sealing, mechanical...
Microcapsules, with sodium silicate solution as core, were produced using complex coacervation in a double, oil-in-water-in oil, emulsion system. The shell material was gelatin–acacia gum crosslinked coacervate and the microcapsules had diameters ranging from 300 to 700 μm. designed switchable mechanical properties. When it is hydrated exhibits soft 'rubbery' behaviour and, when dried, transitions stiff 'glassy' material. survived drying rehydrating cycles preserved their structural...
Materials for Life (M4L) was a 3 year, EPSRC funded, research project carried out by the Universities of Cardiff, Bath and Cambridge to investigate development self-healing cementitious construction materials. This paper describes UK's first site trial concrete, which culmination that project. The comprised in-situ five concrete panels using range technologies within compound A465 Heads Valleys Highway upgrading Four techniques were used both individually in combination with one another....
Abstract Self-healing approaches are increasingly being explored in various fields as a potential method to recover damaged material properties. By self-recovering without external intervention, self-healing techniques emerge solution arrest or prevent the development of large strains problems soils (e.g., landslides) and other ground effects that influence serviceability structures differential settlement). In this study, microcapsule-based sand was developed, its performance during mixing...
The classification of a concrete mixture as self-compacting (SCC) is performed by series empirical characterization tests that have been designed to assess not only the flowability but also its segregation resistance and filling ability. objective present work correlate rheological parameters SCC matrix, yield stress plastic viscosity, slump flow measurements. focus test investigation was centered on fully yielded regime an model relating material proposed. Our experimental data revealed...
Abstract The in-plane thermoelastic response of curved beams made porous materials with different types functionally graded (FG) porosity is studied in this research contribution. Nonlinear governing equations are derived based on the first-order shear deformation theory along nonlinear Green strains. solved by aid Rayleigh–Ritz method Newton–Raphson method. modified rule-of-mixture employed to derive material properties imperfect FG beams. Comprehensive parametric studies conducted explore...
Encapsulated rejuvenating agents for self-healing of bituminous materials have gained significant interest within the road scientific community, turning these enhanced into a hot topic. In this study, virgin cooking oil, waste and engine oil were used as encapsulated rejuvenators to restore properties aged bitumen their capacity asphalt self-healing. The alginate-based capsules components characterised by chemical, physical, morphological, thermal stability, mechanical tests. Self-healing...
<title>Abstract</title> The RILEM TC 281–CCC ‘‘Carbonation of concrete with supplementary cementitious materials’’ conducted a study on the effects materials (SCMs) carbonation rate blended cement concretes and mortars. In this context, comprehensive database has been established, consisting 1044 mortar mixes their associated depth data over time. dataset comprises mix designs large variety binders up to 94% SCMs, collected from literature as well unpublished testing reports. includes...