A5091706758- Concrete and Cement Materials Research
- Composite Material Mechanics
- Innovative concrete reinforcement materials
- Advanced Mathematical Modeling in Engineering
- Rock Mechanics and Modeling
- Geotechnical Engineering and Underground Structures
- Soil and Unsaturated Flow
- Geotechnical Engineering and Soil Stabilization
- Numerical methods in engineering
- Concrete Corrosion and Durability
- Concrete Properties and Behavior
- Magnesium Oxide Properties and Applications
- Metal and Thin Film Mechanics
- Structural Load-Bearing Analysis
- Waste Management and Environmental Impact
- Innovations in Concrete and Construction Materials
- Recycled Aggregate Concrete Performance
- Geothermal Energy Systems and Applications
- Structural Behavior of Reinforced Concrete
- Building materials and conservation
- Tunneling and Rock Mechanics
- Structural Engineering and Vibration Analysis
- Additive Manufacturing and 3D Printing Technologies
- CO2 Sequestration and Geologic Interactions
- Electromagnetic wave absorption materials
Massachusetts Institute of Technology
2022-2025
University of Houston
2020-2023
Wrocław University of Science and Technology
2014-2021
AGH University of Krakow
2016-2021
Institute of Geotechnics of the Slovak Academy of Sciences
2015
The large-scale implementation of renewable energy systems necessitates the development storage solutions to effectively manage imbalances between supply and demand. Herein, we investigate such a scalable material solution for in supercapacitors constructed from readily available precursors that can be locally sourced virtually anywhere on planet, namely cement, water, carbon black. We characterize our carbon-cement electrodes by combining correlative EDS–Raman spectroscopy with capacitance...
Abstract Addressing the existing gap between currently available mitigation strategies for greenhouse gas emissions associated with ordinary Portland cement production and 2050 carbon neutrality goal represents a significant challenge. In order to bridge this gap, one potential option is direct gaseous sequestration storage of anthropogenic CO2 in concrete through forced carbonate mineralization both cementing minerals their aggregates. To better clarify strategic benefits these processes,...
The granite waste (GW) generated during mining extraction is responsible for environmental degradation. Millions of tonnes stored GW are currently still not being reused. This paper describes a disposal process this material, where can be used as an alternative aggregate advanced concrete. awareness the impact coarse morphology on behavior fresh concrete mixture, well deformation and compressive strength hardened concrete, favors creation efficiency Self-Compacting High-Performance Concrete...
When understanding the effect of morphology coarse aggregate on properties a fresh concrete mixture, strength and deformability self-compacting high-performance fibre-reinforced (SCHPFRC) can be seen to critical for its performance. In this research, regular irregular grains were separated from granite aggregate. The these was described while using digital image analysis. As result, aspect ratio, roundness area ratio determined in order better understand phenomenon. Then, principal...
Microstructural analysis of self-compacting concrete modified with the addition nanoparticles was carried out. Investigations included SCC concretes different amounts SiO2, TiO2 and Al2O3 nanoparticle additives one reference made without nanoparticles. Porosity, maximal pore dimensions, microstructure 3-D models, hardness elastic modulus were determined. Based on conducted studies, it can be concluded that improves concrete. It is confirmed both by results porosity tested samples cement...
Sewage sludge, a biosolid product of wastewater processing, is an often-overlooked source rich organic waste. Hydrothermal processing has shown promise in converting sewage sludge into valorized materials with potential application biofuels, asphalt binders, and bioplastics. Here we characterize the physicochemical properties hydrochar, carbonaceous solid phase hydrothermal investigate its use as bio-based filler additive manufacturing. We find that presence metallic metalloid dopants which...
Shale, a fine-grained sedimentary rock, is composed of highly compacted clay particles, nanometric porosity and silt-sized particles other minerals. In this paper, combined use X-Ray micro-CT nanoindentation tests proposed for the qualitative quantitative characterization material. The individual methods are utilized at different scales observation: nano micro level while X-ray microtomography meso scale. For purpose mechanical morphology evaluation, grid measurements carried out resulting...
Improving a soil is process of increasing its physical/mechanical properties without changing natural structure. Improvement subbase reached by means the knitted materials, or other methods when strong connection between particles established. The method DSM (Deep Soil Mixing) columns has been invented in Japan 1970s. main reason designing cement-soil to improve local soils (such as strength and stiffness) mixing them with various cementing materials. Cement calcium are most commonly used...
This article presents the microstructural evolution within interphase between a hardening overlay made of cement mortar and an existing concrete substrate. The substrate has been treated using four methods, due to which different surfaces were obtained: raw surface, surface formed after contact with formwork, grinded shotblasted surface. Special focus is placed on results microporosity zone (IZ) X-ray micro computed tomography (micro-CT). profiles obtained from micro-CT images have used...
Abstract Nowadays, the recycled fine aggregate sourced from construction and demolition waste is not frequently used in manufacturing of epoxy resin coatings. Therefore, main novelty article to prepare green coatings modified with a replacement ratio natural ranged 20 100%. The microstructural properties aggregates were analyzed using micro-computed tomography, scanning electron microscopy nanoindentation. macroscopic mechanical examined pull-off strength tests. highest improvement was...
Evaluation of soil thermal conductivity at a given saturation usually requires the value in saturated state, which is commonly estimated by geometric mean from conductivities water and solids ( λ s ). Therefore, an accurate estimate has marked effect on within full range saturation. In this research, we modelled solid as multi‐phase medium comprising individual isotropic phases with drawn randomly assumed probability density function. The variation minerals associated corresponding...
This paper proposes homogenization scheme for estimating the effective thermal conductivity of fully saturated soils. approach is based on random checkerboard-like microstructure. Two modeling scales and two approaches are distinguished used, i.e. microscale mesoscale 1-step 2-step homogenizations, respectively. The involves sequential averaging procedure, first, at microscale, a mineralogical composition soil skeleton considered process results in estimation conductivity, then, mesoscale,...
This paper presents the results of laboratory testing organic soil-cement samples are presented in paper. The research program continues previously reported authors' experiences with cement-fly ash-soil sample testing. Over 100 compression and a dozen tension tests have been carried out altogether. Several were waiting for failure test over one year after they formed. factors, like: large amount tested samples, long observation time, carrying complex cycles loading possibility registering...