A5025903161- Concrete and Cement Materials Research
- Concrete Properties and Behavior
- Concrete Corrosion and Durability
- Innovative concrete reinforcement materials
- Structural Behavior of Reinforced Concrete
- Building materials and conservation
- Innovations in Concrete and Construction Materials
- Structural Load-Bearing Analysis
- Drilling and Well Engineering
- Fire effects on concrete materials
- Rock Mechanics and Modeling
- Infrastructure Maintenance and Monitoring
- Geotechnical Engineering and Underground Structures
- Dam Engineering and Safety
- Magnesium Oxide Properties and Applications
- Geotechnical Engineering and Analysis
- Municipal Solid Waste Management
- Hygrothermal properties of building materials
- Structural Response to Dynamic Loads
- Soil and Unsaturated Flow
- Non-Destructive Testing Techniques
- Structural Engineering and Vibration Analysis
- Microbial Applications in Construction Materials
- CO2 Sequestration and Geologic Interactions
- Hydraulic Fracturing and Reservoir Analysis
Saitama University
2016-2025
C-M Concrete Products (Australia)
2018
Abstract The growing demand for a more efficient maintenance of concrete bridges requires model that tracks the deterioration each bridge based on inspection data. Although it has been expected machine learning could be applied to this problem, data sparsely distributed over time are not suitable in contrast continuous big usually targeted. This study applies regression crack formation and propagation using confirm applicability. It includes selection optimal algorithm, development novel...
Shrinkage of Ultra-high-performance concrete (UHPC) may adversely affect its bond strength with substrate (SC), which is vital for strengthening efficacy UHPC. reducing agents (SRA) can mitigate shrinkage UHPC, yet their effect on UHPC-SC interfacial not well understood. This study examined the mechanical properties and UHPC varying SRA contents evaluated composite specimens via split tensile, slant shear, flexural tests. The findings revealed that significantly reduced but also...
Along with the increase of autoclaved aerated concrete (AAC) production, amount scrap waste (industrial by-products) is increasing. AAC waste, however, not yet being fully reused or recycled and discarded without any treatment in most developing countries. In this study, fines were tested as effective economic adsorbents for removal Cd2+ Pb2+ from wastewater. A series batch adsorption experiments carried out using three different particle sizes (<0.105, 0.105–2, 2–4.75 mm) to examine effects...
Delayed ettringite formation (DEF) is a durability issue that can cause concrete expansion and cracking. While significant efforts have been made to investigate the microscopic mechanisms of DEF expansion, relatively few studies focused on structural models. Understanding effect stress crucial for evaluating performance structures affected by this phenomenon. Although experiments are useful studying under certain conditions, visualizing internal state reinforcement through challenging....
Abstract Crack control throughout the service life of a structure has always been challenging task for engineers and asset owners, particularly those who are involved with design construction structures increased durability requirements, such as liquid retaining structures, nuclear containment buildings or in direct contact ground, but also other externally restrained structures. For these reasons, several standardized methods exist global engineering community which encompass differences...
Abstract The data acquired in civil engineering tasks often involve high acquisition costs, and the available datasets tend to have a limited number of samples are highly biased. To estimate performance machine learning models, k‐fold cross‐validation (k‐CV) is widely used. However, if only distribution biased, k‐CV tends overestimate for practical applications. This study proposed new estimator, leave one reference out (LORO‐k‐CV), determine that is, generalization population target task,...
An enhanced multi-chemo-physical model for the time-dependent deformation of concrete is proposed based on thermodynamic state moisture in micro-pores. The migration mechanism divided into 1) transport through CSH gel grains and 2) water motion within inter-particle spaces hydrate micro-products. new kinematic makes it possible to simulate both long- short-term creep. mechanistic law stress path dependency introduced cope with a wide variety ambient histories as well. Time-dependency at...
Molecular simulations are performed to decipher the nanoscale processes associated with water sorption in tobermorite, a microporous phase that functions as binder autoclaved aerated cement composites. Merlino's cross-linked tobermorite 11 Å is studied. We show there no hysteresis bulk at molecular scale because zeolitic cavities occupied by smaller than critical pore size for disappearance, and upon sorption, shows virtually volume change. These effects combined explain why under limited....