A5034459467- Innovative concrete reinforcement materials
- Concrete and Cement Materials Research
- Rock Mechanics and Modeling
- Concrete Corrosion and Durability
- Structural Behavior of Reinforced Concrete
- Smart Materials for Construction
- Fire effects on concrete materials
- Structural Response to Dynamic Loads
- Recycled Aggregate Concrete Performance
- Geophysical Methods and Applications
- Geotechnical Engineering and Underground Structures
- Concrete Properties and Behavior
- Advanced Energy Technologies and Civil Engineering Innovations
- Grouting, Rheology, and Soil Mechanics
- Environmental Impact and Sustainability
- Building Energy and Comfort Optimization
- Polymer composites and self-healing
- Geotechnical and Mining Engineering
- Asphalt Pavement Performance Evaluation
- Material Properties and Failure Mechanisms
- Carbon dioxide utilization in catalysis
- Building materials and conservation
- Civil and Structural Engineering Research
- Mineral Processing and Grinding
- Soil and Unsaturated Flow
RISE Research Institutes of Sweden
2019-2024
Gdańsk University of Technology
2015-2022
The paper describes experimental and numerical results of concrete fracture under quasi-static uniaxial compression. Experimental compression tests were performed on cubic specimens. Fracture in was detected at the aggregate level by means three non-destructive methods: three-dimensional X-ray microcomputed tomography, two-dimensional scanning electron microscope manual digital microscope. discrete element method used to directly simulate experiments. Concrete modelled as a random...
Concrete is the worldwide most utilized construction material because of its very good performance, forming ability, long-term durability, and low costs. a brittle prone to cracking. Extensive cracking may impact durability performance over time considerably. The addition small amount carbon nanotubes (CNT) increases concrete's overall electrical conductivity, enabling internal structure condition monitoring (self-sensing). This article presents mechanical self-sensing properties regular...
The paper describes numerical meso-scale results of a size effect on strength, brittleness and fracture in brittle materials like concrete. discrete element method (DEM) was used to simulate the during quasi-static splitting tension with experimental-based meso-structure. two-dimensional (2D) calculations were carried out concrete cylindrical specimens two diameters wherein different failure modes occurred (quasi-brittle very snap-back instability). Concrete modelled as random heterogeneous...
The paper describes an experimental and numerical study of size effect on concrete cylindrical specimens in splitting tensile test. Own campaign was performed with 5 various diameters from D = 74, 105, 150, 192 250 mm hardboard loading strips (distributed load according to standard methods) scaled proportionally the specimen diameter. crack opening-control system applied obtain post-peak behaviour all tested including catastrophic (snap-back). at a certain point were unloaded scanned novel...
The paper describes the preparation and characterization of rigid polyurethane-polyisocyanurate (PUR-PIR) foams obtained with biopolyol synthesized in process liquefaction biomass from Baltic Sea. differed content polyol mixture (0-30 wt%) isocyanate index (IISO = 200, 250, 300). prepared were characterized terms processing parameters (processing times, synthesis temperature), physical (sol fraction content, apparent density) chemical structure (Fourier transform infrared spectroscopy),...
Strategic reuse of demounted concrete elements in new buildings may be one the solutions that will support transition to circular construction. To ensure wider application reuse, RISE developed a methodology for assessment structural condition existing buildings, and selection suitable including guidelines their disassembly, storage, installation. However, main obstacles wide is uncertainty concerning remaining service-life evaluation quality over future building. This paper describes...
The building sector accounts for 40% of the total energy consumed in Europe at annual basis, together with relevant Greenhouse Gas (GHG) emissions. In order to mitigate these impacts, concept and establishment Nearly Zero Energy Buildings (NZEBs) is under continuous intensive research. fact, as used buildings’ operation becomes more efficient, impacts resulting from embodied become importance. Therefore, selection materials components high significance, affect performance potential...
In this paper, novel rigid polyurethane foams modified with Baltic Sea biomass were compared traditional petro-based foam as reference sample. A special attention was focused on complex studies of microstructure, which visualized and measured in 3D high-resolution microcomputed tomography (microCT) and, commonly applied for purpose, scanning electron microscopy (SEM). The impact pore volume, area, shape orientation appearance density thermal insulation properties determined. results...
Buildings are responsible for 40% of energy consumption annually in Europe, along with the respective greenhouse gas emissions. To mitigate these impacts, intensive research is ongoing sector Nearly Zero-Energy (NZEBs). However, as it expected that operational future buildings becomes greener and more efficient, impacts related to embodied building materials significance. Thus, choices on crucial importance they affect performance envelope its environmental impacts. The objective this study...
Dispersing Multi-Walled Carbon Nanotubes (MWCNTs) into concrete at low (<1 wt% in cement) concentrations may improve performance and properties provide enhanced functionalities. When MWCNT-enhanced is fragmented during remodelling or demolition, the stiff, fibrous carcinogenic MWCNTs will, however, also be part of respirable particulate matter released process. Consequently, systematic aerosolizing crushed concretes a controlled environment measuring this aerosol can give valuable insights...
Abstract The development of an innovative rock anchor prototype manufactured using high strength steel sheets produced locally in Sweden is the core PROWIND concept. Steel provide a design freedom to easily manufacture complex geometries, which can be advantageous enhance shear force transmission bond-length segment anchor. underlying challenge this concept has been solution meets requirements today and future technological advancements, all while keeping conventional installation practices...
Within EU project LightCoce (Building an Ecosystem for the upscaling of lightweight multi-functional concrete and ceramic materials structures), RISE will be running a Pilot Line to allow design development materials, elements Cellular Lightweight Concrete (CLC) and/or composite with improved functionalities. One these functionalities is self-sensing (damage stress detection), achieved by reducing natural concrete's resistance incorporation multi-walled carbon nanotubes (MWCNTs). By applying...
<p>For decades, research has been carried out with a focus on concrete structures during curing to mitigate the risk of thermal cracking. Computer programs and aids/tools have also developed assess stress cracking analysis curing. However, today recent introduction low-carbon concretes reduce environmental impact constructions, reliability tools working procedures, i.e. characterization, is questioned, roadmap for innovation called for. The project's primary purpose investigate need...