A5051126642- Concrete and Cement Materials Research
- Recycled Aggregate Concrete Performance
- Asphalt Pavement Performance Evaluation
- Innovative concrete reinforcement materials
- Geotechnical Engineering and Underground Structures
- Geotechnical Engineering and Soil Stabilization
- Magnesium Oxide Properties and Applications
- earthquake and tectonic studies
- Academic Research in Diverse Fields
- Biodiesel Production and Applications
- Structural Load-Bearing Analysis
- Membrane Separation Technologies
- Geological formations and processes
- Landslides and related hazards
- Recycling and utilization of industrial and municipal waste in materials production
- Soil Management and Crop Yield
- Extraction and Separation Processes
Universidade Regional Integrada do Alto Uruguai e das Missões
2020-2025
Universidade de Passo Fundo
2023
Universidade Federal do Rio de Janeiro
2019-2022
The increasing production of iron ore has led to the accumulation tailings (IOTs), which pose significant environmental and safety risks when stored in dams. This study investigates potential IOTs as a precursor alkali-activated binder systems, aiming provide sustainable solution for mining waste management. Industrial calcium carbide lime sodium silicate (Na2SiO3) were used activators varying concentrations (Na2SiO3: 10%, 15%, 20%, 25%, 30%; lime: 5%, 7.5%, 10%), with curing conditions 23...
Physical modelling studies of submarine landslides in a 5° slope were conducted to assess the occurrence hydroplaning and turbidity currents. The centrifuge did not aim simulate complete mudflow mechanism, but rather focused on assessing current conditions. Four tests performed using kaolin clay drum (N = 40). initial water content slurry pressure associated with release mixture inside varied during order different flow rates. test results evaluated by means pore total stress measurements at...
The application of alkali-activated industrial by-products for the stabilization reclaimed asphalt pavement (RAP), can become a sustainable solution to reduce carbon footprint road construction and maintenance activities. Furthermore, this approach also increasing depletion natural resources. Thus, durability long-term mechanical performance RAP stabilized with fly ash were assessed in study. alkaline activator was composed sodium hydroxide silicate. To extent, unconfined compressive...
A indústria dos pré-moldados vivencia transformações importantes para atender as exigências do mercado. É de grande importância a preocupação métodos e modelos execução sistemas construtivos tradicionais. As estruturas concreto pré-moldado possuem rapidez na execução, propiciada pela facilidade que os consoles trazem no encaixe das peças. Devido alta produtividade, empresas pré-fabricadas vêm adotando formas alternativas solucionar em pilares pré-fabricados, dadas dificuldade existentes, já...
The stabilization of recycled asphalt pavement (RAP) with alkali-activated cement (AAC) is a topic growing interest for sustainable engineering, especially those containing alternative activators produced from waste. This study evaluated the effect curing temperature on RAP metakaolin AAC and rice husk ash-derived activator potential use in base subbase layers flexible systems. Unconfined compressive strength (UCS), X-ray diffraction, scanning electron microscopy tests were performed. Higher...
Although alkali-activated materials (AAMs) are considered potential substitutes for Portland cement, they still come with elevated costs and significant carbon dioxide emissions. The development of alternative activators, such as sodium silicate based on the dissolution rice husk ash (RHA), could partially overcome these disadvantages. However, to maximise mechanical performance AAMs, production RHA-based (RHA-SS) needs be fully understood. process an RHA-SS activator was thus investigated...
: Estacas moldadas in loco são amplamente utilizadas na construção civil e alvo constante de patologias envolvendo perda resistência lateral durante o processo executivo. Decorrente disso, estudos para melhoramento da capacidade carga destas estruturas se mostram relevantes. O presente trabalho buscou avaliar experimentalmente, por meio protótipos estacas, a área confinamento no entorno uma estaca escavada, com presença um aditivo expansor argamassa, pode interferir estrutura atrito lateral....