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International Journal of Concrete Structures and Materials
Scopus
ISSN 2234-1315 · SpringerOpen · 753 artikel di indeks
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Artikel Jurnal
Forta and Steel Fiber Reinforced Lightweight Self-Compacted Concrete: Mechanical Properties and Durability in Sulfate, Acid and Chloride Attack
Abstract This study evaluates the mechanical properties and durability of self-compacting lightweight concrete (SCLC) made with LECA lightweight aggregate with the addition of Forta and steel fibers in a comprehensive study. For this purpose, mechanical property tests such as compressive strength…
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Artikel Jurnal
Seismic Performance of RCS Frame with Slab: Numerical Simulation and Damage Analysis
Abstract While reinforced concrete column–steel beam (RCS) joints are well-studied, the seismic performance of RCS frames incorporating floor slabs remains inadequately explored. This study extends previous experimental findings, developing and validating an OpenSees finite element model of an RCS…
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Artikel Jurnal
Micrographic Evaluation of Carbon Nanotube Cement Composites via Machine Learning and Convolutional Neural Networks
Abstract Carbon nanotube (CNT)/cement composite is a promising material for structural health monitoring, where CNT dispersion and content critically affect the conductive network for self-sensing. Still, a simple method to assess low CNT levels is lacking, limiting their large-scale production…
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Artikel Jurnal
Performance of Axially Compressed Reinforced Concrete Walls with Openings Strengthened Using Glass Fiber and Welded Wire Mesh Reinforced Engineered Cementitious Composites
Abstract This study explores the structural behavior of axially loaded reinforced concrete (RC) walls with openings strengthened using glass fiber (GF) or welded wire mesh (WWM) reinforced engineered cementitious composites (ECC). Eleven instrumented specimens were constructed, prepared, and tested…
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Artikel Jurnal
A Novel DEM-Subset Simulation Approach for the Behavior and Reliability Calibration of FRP-Reinforced Concrete Beams
Abstract Fiber-reinforced polymer (FRP) bars are increasingly utilized to replace steel bars in concrete beams because of their chemical resistance, light weight, and high strength. Therefore, this paper develops a computational program based on a branch of discrete element method (DEM), namely…
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Artikel Jurnal
A Proposal of Evaluation Method for Blended Cement Based on CO₂ Emissions and Compressive Strength
Abstract The cement industry is a major contributor to global warming due to substantial CO₂ emissions, particularly during clinker production, the intermediate step in manufacturing Ordinary Portland Cement (OPC). While blended cements incorporating supplementary cementitious materials (SCMs) such…
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Artikel Jurnal
Flexure Response of Isolated Square RC Footings Internally Reinforced by SMFs: Experimental and Numerical Investigations
Abstract This study investigates the flexural behavior of reinforced concrete (RC) footings supported on natural soil and internally strengthened using steel mesh fabrics (SMFs) as a novel alternative to conventional steel bars. Despite the widespread application of SMFs in structural retrofitting…
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Artikel Jurnal
Mechanical Properties of Fiber-Reinforced Concrete Using Steel Fibers Derived from Discarded Tires
Abstract The global accumulation of approximately 1.5 billion discarded tires annually presents a critical environmental challenge, necessitating innovative recycling strategies in the construction sector. This study investigates the valorization of Recycled Steel Fibers (RSF) recovered from waste…
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Artikel Jurnal
Investigation on Mechanical, Microstructural, and Sustainability Analysis of Ternary Blend Alkali-Activated Concrete
Abstract Efforts to enrich concrete performance and reduce environmental impact drive the development of alkali-activated concrete (AAC), which eliminates the need for cement. This study investigates the effect of fly ash (FA) and rice husk ash (RHA) on ground granulated blast furnace slag (GGBS)…
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Artikel Jurnal
Seismic Performance of Substandard Reinforced Concrete Roof T-joints Retrofitted with Prestressed Steel Plates
Abstract This study proposes an innovative and practical retrofitting method for reinforced concrete (RC) roof T-joints with substandard structural details. Retrofitting was performed by assembling steel plates with threaded rods on the roof T-joints, which have typically only been applied to…
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Artikel Jurnal
Enhancing the Buildability of CSA Cement/OPC-Blended Mortar in 3D Printing: Optimizing CSA Cement and Water Contents Using a Statistical Approach
Abstract This study examined the influence of the water–binder ratio and calcium sulfoaluminate (CSA) cement replacement on the properties of fresh three-dimensional concrete printing (3DCP) materials and identified optimized mix proportions to enhance buildability. Experimental analyses included…
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Artikel Jurnal
Durability of Fly Ash and Limestone Concrete Under Combined Sulfate and Chloride Attack
Abstract This study investigates the long-term durability of concrete incorporating fly ash (FA) and limestone powder (LP) when subjected to simultaneous sulfate and chloride ion attack. Three concrete mixtures—100% ordinary portland cement (PC), 25% FA-blended concrete, and 15% LP-blended…
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Artikel Jurnal
Tension Stiffening Effect of Reinforced Ultra-high-Performance Concrete Members in Tension with Thin Cover Thickness
Abstract This study experimentally investigates and analyzes the key factors influencing the tension stiffening effect of ultra-high-performance concrete (UHPC) with embedded reinforcement under thin cover conditions, focusing on the effective tensile cross section and bond coefficient. Unlike…
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Artikel Jurnal
Synergistic Role of Surface-Modified Silica Aerogel and Basalt Fibres in Structurally Reliable, Energy-Efficient Masonry Mortar
Abstract This study develops a sustainable masonry mortar incorporating a low dosage of KH-570 surface-modified silica aerogel and basalt fibre to improve thermal insulation while maintaining mechanical compliance suitable for non-load-bearing applications. This work, to the authors’ knowledge, is…
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Artikel Jurnal
Experimental and Machine Learning Strategies with SHAP and PDP Analysis of Self-Healing Characteristics of Bio-concrete Using Bacillus Cereus and Steel Slag
Abstract Self-healing concrete is a cement-based substance that can mend itself from a hairline crack. This experiment examines the effectiveness of the gram-positive cell bacteria Bacillus cereus on the self-healing characteristics of steel-slag bio-concrete (SSBC). The study's ultimate goal is to…
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Artikel Jurnal
Full Time-Domain Investigation of the Cracking Behavior of PVA Fiber-Reinforced High-Titanium Slag Concrete Using DIC Technology: Material Optimization, Performance Assessment, and Mechanism Analysis
Abstract The incorporation of high-titanium slag may reduce the crack resistance of concrete. To promote the recycling of industrial solid waste while maintaining structural integrity, this study investigates the use of high-titanium slag as a replacement aggregate in concrete, supplemented with…
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Artikel Jurnal
Prediction of Compressive Strength for Recycled Rubber Aggregate Concrete Using Hybrid Machine-Learning Algorithms
Abstract This study presents an innovative approach to predicting the compressive strength (CS) of recycled rubberized concrete (RC) using advanced hybrid machine learning (ML) algorithms. The integration of recycled rubber in concrete offers significant environmental and sustainability benefits by…
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Artikel Jurnal
Prediction of the Shear Strength of Steel-Fiber-Reinforced Concrete Using a Swarm Intelligence Based Extreme-Learning Machine
Abstract Steel fibers are added to concrete to enhance the shear strength of reinforced concrete beams and improve the post-cracking tensile strength of the material. However, creating an accurate simulation model to estimate the shear strength of steel-fiber-reinforced concrete (SFRC) beams is…
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Artikel Jurnal
Structured Prompt and Agent AI Framework for Reliable LLM-Based RC Beam Design
Abstract This study evaluates a Structured Prompt (S-Prompt) approach for LLM-based RC beam design under Korea Design Standard (KDS) provisions. Across 1,200 trials (two models, two prompt styles, and 300 runs per condition), S-Prompt increased end-to-end correctness, defined as the simultaneous…
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Artikel Jurnal
Discrepancies Between Reported and Actual Predictive Performance of Machine-Learning Models for Concrete Compressive Strength: A Validation Study Using Experimental Data
Abstract Recent studies employing machine learning (ML) for predicting compressive strength of concrete have reported high levels of accuracy, attracting research interest. However, many of these models are trained on publicly available or multisource datasets, raising concerns regarding their…