Hao Lu

Surface Pre-Coating of Fly Ash Ceramsite for Interfacial Microstructure Evolution and Mechanical Enhancement of Lightweight Concrete

Hua Wei, Anyi Chen, Chunhe Li, Hao Lu

The widespread application of fly ash ceramsite as a lightweight aggregate in high-performance concrete is restricted by its inherent defects, including high porosity, high water absorption rate and weak interfacial transition zone (ITZ). In this study, a surface pre-treatment strategy is proposed, …

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Multimodal Instance Segmentation of Building Façade Damage with Frequency-Decoupled Feature Fusion

Shenglin Xu, Zhengyuan Chen, Yibo Wang, Yanran Shi et autres

Building façade damage segmentation remains challenging because cracks, peeling, hollow-like areas, stains, and erosion often exhibit weak contrast, irregular boundaries, discontinuous structures, and substantial scale variations under complex surface textures and illumination conditions. To address these challenges, this study proposes MMDF-Net, a …

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Real-Time Safety-Critical Object Detection in Large Open Construction Sites Using a Scale-Gated Edge Detection Transformer

Lei Shen, Yanran Shi, Hao Lu, Zhanyun Gu et autres

Wide-area visual monitoring of construction sites is constrained by the reliable detection of safety-critical targets that appear small, low-resolution, and weakly textured under elevated or distant camera views. To address this problem, this study proposes Scale-Gated Edge Detection Transformer (SGE-DETR), a safety-oriented …

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Response Surface Optimization of High-Durability Fly Ash–Slag Blended Concrete as an Eco-Friendly Repair Material

Hua Wei, Anyi Chen, Chunhe Li, Jiaming Zhang et autres

To address the durability deficiencies and limited service life of concrete structures exposed to complex service environments such as chloride attack in marine and underground engineering, this study employs fly ash (FA) and ground granulated blast-furnace slag (GGBS), typical eco-friendly materials, as …

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Unveiling the Degradation Mechanism of Impermeability and Pore Structure in Concrete Under Long-Term Water Exposure

Hua Wei, Yi Sun, Chunhe Li, Yang He et autres

To investigate the evolution of impermeability and pore structure in concrete under long-term service, systematic tests were conducted on submerged concrete from dam sections with over 75 years of service. Results show that the surface water permeation resistance index of concrete in …

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Analysis of Pollution Load and Accurate Assessment of Ecological Capacity in Tianmu Lake Basin Based on Target Control

Chao Wu, Xiaoguang Xu, Hao Lu, Qiu Jin et autres

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Research on the Impact Performance of Polypropylene Fiber-Reinforced Concrete Composite Wall Panels

Xuan Zou, Yanran Shi, Hao Lu, Haichen Zhang et autres

Polypropylene fibers (PPFs), characterized by their low density, cost-effectiveness, and superior corrosion resistance, can be effectively incorporated into concrete to enhance the impact resistance of wall panels. This study introduces an innovative composite wall panel utilizing polypropylene fiber-reinforced concrete (PFRC) as the …

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Study on the mechanical strength and durability of polymer-based underwater non-dispersible cement pastes

Hao Lu, Haibo Long, Wanle Liu, Junli Wang et autres

This study conducted detailed research and analysis on the setting time, compressive strength, bond strength, and bond splitting tensile strength of anti-washout cement with polyacrylamide (PAM) content. The results indicate that the initial and final setting times of the paste show a …

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Study on the Performance and Service Life Prediction of Corrosion-Resistant Concrete Cut-Corner Square Piles

Ruilong Sheng, Kang Wang, Hua Wei, Hao Lu et autres

This paper addresses the issue of reduced lifespan of coastal concrete piles due to chloride ion corrosion. A combination of concrete mix optimization and pile geometry improvement measures is proposed. Based on the diffusion coefficient optimization of Fick’s second law, the service …

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Study on the optimization of electromechanical properties and fiber dispersion mechanisms in red mud-carbon fiber-cement ternary composites

Yunpeng Zhao, Junzheng Xiang, Hao Lu

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Bonding mechanism between the AlN ceramic matrix and the copper-based metal cladding layer

Song Wang, Hao Lu, Fengyuan Shu, Xin Zhang et autres

Abstract High-temperature brazing and laser cladding methods can form a good metallurgical bond between ceramics and copper cladding. Herein, through these two methods, the preparation of a Cu-based metal cladding layer on the surface of aluminum nitride (AlN) ceramics was carried out. …

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Study on the Mechanical Properties, Tensile Performance, Hydration Heat, and Microstructure of VAE-Modified Rubber Mortar

Junfan Zhang, Ce Bian, Bowen Chen, Chunhe Li et autres

This study builds on the practice of using waste rubber to improve the ductility of cement mortar and further explores the potential of vinyl acetate-ethylene (VAE) in enhancing the ductility of rubber cement mortar (RM). It systematically analyzes the effects of VAE …

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