Fuqiang He
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View article: Frequency-dependent AC response of cement-based materials: New insights from decoupled admittance analysis
Frequency-dependent AC response of cement-based materials: New insights from decoupled admittance analysis Open
View article: Evaluation of Degradation in Cement-Based Materials Under Low-Temperature Sulfate Attack: Insights from Ac Impedance Spectroscopy
Evaluation of Degradation in Cement-Based Materials Under Low-Temperature Sulfate Attack: Insights from Ac Impedance Spectroscopy Open
View article: Utilization of Incense Stick Ash as a Supplementary Cementitious Material: Impact on Strength, Cement Chemistry, and Sustainability
Utilization of Incense Stick Ash as a Supplementary Cementitious Material: Impact on Strength, Cement Chemistry, and Sustainability Open
View article: Chloride Binding Capacity of C–(A)–S–H Gel Under Different Alkaline Conditions: Effects of Ca/Si and Al/Si Ratios and Pore Solution Ions
Chloride Binding Capacity of C–(A)–S–H Gel Under Different Alkaline Conditions: Effects of Ca/Si and Al/Si Ratios and Pore Solution Ions Open
View article: Effects of Al in C–A–S–H Gel on the Chloride Binding Capacity of Blended Cement Paste
Effects of Al in C–A–S–H Gel on the Chloride Binding Capacity of Blended Cement Paste Open
View article: Undersatnding Hydration Process and Paste Viscosity Evolution of Magnesium Potassium Phosphate Cement
Undersatnding Hydration Process and Paste Viscosity Evolution of Magnesium Potassium Phosphate Cement Open
View article: Evaluation of electrode-sample contact impedance under different curing humidity conditions during measurement of AC impedance of cement-based materials
Evaluation of electrode-sample contact impedance under different curing humidity conditions during measurement of AC impedance of cement-based materials Open
View article: Study on Concrete Workability Based on Comparison between the Minimum Paste Demand and the Closest Packing Density
Study on Concrete Workability Based on Comparison between the Minimum Paste Demand and the Closest Packing Density Open
The mixture design method (MDM) has been used to design the concrete workability with the three-graded stone. The results indicated that the proportion of the stone corresponding to the minimum paste demand ( P min ) can meet that correspo…
View article: Self-adaptive bridge bare rebar detection algorithm based on local image segmentation and multi-feature filtering
Self-adaptive bridge bare rebar detection algorithm based on local image segmentation and multi-feature filtering Open
针对光照不均、多种复杂背景并存的工况下，采用传统阈值分割方法难以有效将露筋与背景分开的问题，提出了基于局部图像分割与多特征滤波的自适应桥梁露筋检测算法。首先，将灰度图像的灰度值进行投影并寻找露筋在投影图上形成的波谷及其坐标；其次，以波谷坐标为中心设置分割范围对灰度图进行行和列的分块，然后对合并行和列分块的灰度图像进行局部阈值分割；最后，基于多特征滤波实现露筋特征的提取。采用该算法对7种常见的露筋进行验证。实验表明：该方法的平均误检率、漏检率和与人工测量的露筋长度相对误差分别…
View article: Chloride Penetration in Coastal Concrete Structures: Field Investigation and Model Development
Chloride Penetration in Coastal Concrete Structures: Field Investigation and Model Development Open
Field measurements of 42 in-service reinforced concrete bridges in coastal environments of Southeast China, covering a wide range of service year, span length, and concrete mixture, were carried out to investigate the chloride penetration.…
View article: Measurement of wind field data in Southeast China
Measurement of wind field data in Southeast China Open
View article: Evaluation of Sample-Electrode Contact Impedance in Two-Point Measured AC Impedance Spectroscopy of Cement-Based Materials
Evaluation of Sample-Electrode Contact Impedance in Two-Point Measured AC Impedance Spectroscopy of Cement-Based Materials Open
In this study, AC impedance spectroscopy measurements of cement paste with 0.5 W/C were collected and interpreted using different electrode-sample contact methods. The results indicated that when using a conductive glue conta…
View article: Development and Design of Forensic Expert System in Bridge Engineering
Development and Design of Forensic Expert System in Bridge Engineering Open
Considering the complication of impact factor in the bridge engineering identification, it is regarded as an inverse problem and the neural network method is applied to avoid the difficulty caused by the uncertainty of the system.The data …