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学者姓名：陈尚鸿
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Abstract ：
Ferronickel slag and ground granulated blast-furnace slag (GGBFS) are solid waste by-products from the metallurgical industry. When incorporated into concrete, they help promote resource utilization, reduce hydration heat, and lower both solid waste emissions and the carbon footprint. To facilitate the application of ferronickel slag–GGBFS concrete in 3D printing, this study examines how aggregate size and nozzle diameter affect its performance. The investigation involves in situ printing, rheological characterization, mechanical testing, and scanning electron microscopy (SEM) analysis. Results indicate that excessively large average aggregate size negatively impacts the smooth extrusion of concrete strips, resulting in a cross-sectional width that exceeds the preset dimension. Excessively small average aggregate size results in insufficient yield stress, leading to a narrow cross-section of the extruded strip that fails to meet printing specifications. The extrusion performance is closely related to both the average aggregate size and nozzle diameter, which can significantly influence the normal extrusion stability and print quality of 3D printed concrete strips. The thixotropic performance improves with an increase in the aggregate size. Both compressive and flexural strengths improve with increasing aggregate size but decrease with an increase in the printing nozzle size. Anisotropy in mechanical behavior decreases progressively as both parameters mentioned increase. By examining the cracks and pores at the interlayer interface, this study elucidates the influence mechanism of aggregate size as well as printing nozzle parameters on the mechanical properties of 3D printed ferronickel slag–GGBFS concrete. This study also recommends the following ranges. When the maximum aggregate size exceeds 50% of the nozzle diameter, smooth extrusion is not achievable. If it falls between 30% and 50%, extrusion is possible but shaping remains unstable. When it is below 30%, both stable extrusion and good shaping can be achieved. © 2025 by the authors.
Keyword ：
Carbon footprint Carbon footprint Compressive strength Compressive strength Concrete aggregates Concrete aggregates Extrusion Extrusion Mechanical testing Mechanical testing Nozzles Nozzles Scanning electron microscopy Scanning electron microscopy Slags Slags Solid wastes Solid wastes
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| GB/T 7714 | Wang, Suguo , Wang, Xing , Yan, Xueyuan et al. Effects of Aggregate Size and Nozzle Diameter on Printability and Mechanical Properties of 3D Printed Ferronickel Slag–GGBFS Concrete [J]. | Materials , 2025 , 18 (15) . |
| MLA | Wang, Suguo et al. "Effects of Aggregate Size and Nozzle Diameter on Printability and Mechanical Properties of 3D Printed Ferronickel Slag–GGBFS Concrete" . | Materials 18 . 15 (2025) . |
| APA | Wang, Suguo , Wang, Xing , Yan, Xueyuan , Chen, Shanghong . Effects of Aggregate Size and Nozzle Diameter on Printability and Mechanical Properties of 3D Printed Ferronickel Slag–GGBFS Concrete . | Materials , 2025 , 18 (15) . |
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To enhance the performance of infill walls and reduce seismic damage, this paper proposes a novel prefabricated reinforced concrete (PRC) energy-dissipating wall, forming a new recoverable energy-dissipating PRC (ED-PRC) structural system. The system features pre-set gaps on both sides and the top of the PRC wall, with flexible materials filling the gaps on the sides. The top of the PRC wall is connected to the beam through several double-conical mild steel dampers to ensure the efficient transfer of horizontal shear forces between the main frame and the PRC wall. A numerical study was employed to investigate the seismic performance and the staged yield capacity. The results show that this design achieves a yielding sequence of dampers -> wall -> main frame. Furthermore, during the early to mid-phases of the cyclic loading simulations, the double-conical mild steel dampers with the low yield point utilized in the ED-PRC structural system exhibited exceptional energy dissipation capabilities. Notably, the LY100 dampers accounted for up to 61.84% of the total energy dissipation, with the LY160 and LY225 dampers contributing 55.35% and 50.25%, respectively. It indicates that the proposed ED-PRC structural system significantly enhances the ductility and the energy dissipation capacity under seismic loading while substantially reducing damage to the primary structure. The use of prefabricated components facilitates modular construction, allowing for quick dismantling and replacement after an earthquake, thereby rapidly restoring the structural seismic resilience.
Keyword ：
energy-dissipating structural system energy-dissipating structural system energy-dissipating wall energy-dissipating wall prefabricated reinforced concrete structure prefabricated reinforced concrete structure restorable components restorable components
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| GB/T 7714 | Zheng, Qi , Chen, Shanghong , Lin, Wei . Numerical Study on Seismic Performance of a New Prefabricated Reinforced Concrete Structural System Integrated with Recoverable Energy-Dissipating RC Walls [J]. | BUILDINGS , 2024 , 14 (10) . |
| MLA | Zheng, Qi et al. "Numerical Study on Seismic Performance of a New Prefabricated Reinforced Concrete Structural System Integrated with Recoverable Energy-Dissipating RC Walls" . | BUILDINGS 14 . 10 (2024) . |
| APA | Zheng, Qi , Chen, Shanghong , Lin, Wei . Numerical Study on Seismic Performance of a New Prefabricated Reinforced Concrete Structural System Integrated with Recoverable Energy-Dissipating RC Walls . | BUILDINGS , 2024 , 14 (10) . |
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A new nanocomposite g-C3N4/CoAl-LDH was synthesized and implemented to make alkali-activated steel slagbased photocatalytic pervious concrete (ASSPPC). The water permeability, compressive strength, microstructure, and NOx degradation ability of ASSPPC were investigated. The results show that at lower dosages (1 wt% and 3 wt%), the spherical structure facilitates excellent dispersion of g-C3N4/CoAl-LDH within the matrix, which leads to reduced matrix porosity, resulting in improved compressive strength and reduced water permeability in ASSPPC. Compared to control previous concrete, the compressive strength of ASSPPC with 1 wt% g-C3N4/CoAl- LDH increased by 6.3%, and water permeability of which decreased by 15.4%, respectively. However, at higher dosages (5 wt%), g-C3N4/CoAl-LDH tends to agglomerate, causing lower hydration degree and higher matrix porosity. Moreover, owing to the remarkable alkali resistance of g-C3N4/CoAl-LDH, ASSPPC with this photocatalyst only marginally decreases its NOx degradation ability as the curing age increases. When considering water permeability, compressive strength, and NOx degradation ability, ASSPPC with 3 wt% g-C3N4/CoAl-LDH demonstrates optimal performance, which gives both compressive strength and water permeability equivalent to pervious concrete without photocatalyst while exhibiting a NOx degradation rate 0.58 times higher than that of ASSPPC with 3 wt% g-C3N4.
Keyword ：
Alkali-activation Alkali-activation Ground granulated blast furnace slag Ground granulated blast furnace slag NOx degradation NOx degradation Pervious concrete Pervious concrete Steel slag Steel slag
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| GB/T 7714 | Chen, Shanghong , Xiong, Xiaoli , Yang, Zhengxian et al. The microstructure and NOx degradation ability of alkali-activated steel slag-based pervious concrete doped with g-C3N4/CoAl-LDH [J]. | CONSTRUCTION AND BUILDING MATERIALS , 2024 , 419 . |
| MLA | Chen, Shanghong et al. "The microstructure and NOx degradation ability of alkali-activated steel slag-based pervious concrete doped with g-C3N4/CoAl-LDH" . | CONSTRUCTION AND BUILDING MATERIALS 419 (2024) . |
| APA | Chen, Shanghong , Xiong, Xiaoli , Yang, Zhengxian , Lin, Jiafu , Zhang, Jianfu , Briseghella, Bruno et al. The microstructure and NOx degradation ability of alkali-activated steel slag-based pervious concrete doped with g-C3N4/CoAl-LDH . | CONSTRUCTION AND BUILDING MATERIALS , 2024 , 419 . |
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The grouting quality of the grouting sleeve connector is crucial for ensuring the stability of prefabricated building components. In practical engineering, the grouting sleeve is often arranged with multiple sleeves, and there is no feasible nondestructive testing method for testing the complex arrangement of the sleeve grouting joints in the embedded state. Building upon the feasibility of nondestructive detection of single socket grouting connectors, this study discusses the feasibility of defect detection and the severity of defects. Simulation results are used to investigate the choice of the best excitation signal. For different simulated damage cases, it is proven that the selected damage index can be very sensitive, and both the location and the extent of the damage can be detected successfully. The results demonstrate that with the section injury rate ranging from 10% to 40%, the reverse focus peak decreased from 20% to 60% compared to no injury. The effectiveness of the Lamb-wave-based time reversal method in detecting the internal grouting defects of multiple grouting sleeve joints is proven. This paper focuses on the detection study of the Lamb-wave-based time reversal method and proves its ability to perform the detection task effectively and accurately.
Keyword ：
grouting defects grouting defects grouting sleeve grouting sleeve Lamb wave Lamb wave prefabricated building prefabricated building time-reversal method time-reversal method
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| GB/T 7714 | Lin, Wei , Wang, Hongjie , Chen, Shanghong et al. Time Reversal Method for Lamb-Wave-Based Diagnostics of Multiple-Sleeve Grouting Connections [J]. | BUILDINGS , 2023 , 13 (11) . |
| MLA | Lin, Wei et al. "Time Reversal Method for Lamb-Wave-Based Diagnostics of Multiple-Sleeve Grouting Connections" . | BUILDINGS 13 . 11 (2023) . |
| APA | Lin, Wei , Wang, Hongjie , Chen, Shanghong , Lin, Xin , Huang, Jintu , Wang, Rong . Time Reversal Method for Lamb-Wave-Based Diagnostics of Multiple-Sleeve Grouting Connections . | BUILDINGS , 2023 , 13 (11) . |
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In this work, steel slag (SS), blast furnace slag (BFS), ultrafine SS (USS) and ultrafine BFS (UBFS), with fineness of 407, 450, 748 and 760 m2/kg respectively, were prepared. The influences of SS and BFS fineness on cementitious systems were studied from perspectives of the hydration process, microstructure formation as well as fluidity and strength. The results show that the BFS with a high fineness exhibits a high reactivity while an adverse effect on the fluidity. A high fineness of SS could have a negative impact on the hydration of blended cement. The addition of BFS, regardless of the fineness, substantially increases the number of small pores below 20 nm and enhances the compressive strength of cementitious systems. The combination of SS and BFS can decrease the Ca/Si ratio and raise the Al/Si ratio of the main hydrates C(-A)-S-H, while the fineness does not have a great impact on the chemical composition of C(-A)-S-H. Compared to plain cement, the gap-graded ternary cement prepared with 25 wt% cement, 39 wt% SS and 36 wt % UBFS is featured with a lower embodied energy and CO2 emission without compromising the early and late performances.
Keyword ：
Blast furnace slag Blast furnace slag Chemical composition Chemical composition Fineness Fineness Hydration Hydration Microstructure Microstructure Steel slag Steel slag
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| GB/T 7714 | Yang, Zhengxian , Xiong, Xiaoli , Chen, Shanghong et al. Effect of fineness on the hydration and microstructure of cementitious materials with high-volume steel slag and blast furnace slag [J]. | JOURNAL OF BUILDING ENGINEERING , 2023 , 72 . |
| MLA | Yang, Zhengxian et al. "Effect of fineness on the hydration and microstructure of cementitious materials with high-volume steel slag and blast furnace slag" . | JOURNAL OF BUILDING ENGINEERING 72 (2023) . |
| APA | Yang, Zhengxian , Xiong, Xiaoli , Chen, Shanghong , Briseghella, Bruno , Marano, Giuseppe Carlo , Zhang, Yong . Effect of fineness on the hydration and microstructure of cementitious materials with high-volume steel slag and blast furnace slag . | JOURNAL OF BUILDING ENGINEERING , 2023 , 72 . |
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Plug-pin joints are designed for easy assembly and fast construction. Full-scale experiments were carried out on three exterior beams-to-column joints subjected to reversal cyclic loading. It has been proved from experimental results that the proposed connection not only guarantees structural integrity but also moves the plastic hinge away from the column edge. Based on the experimental results, a novel plug-pin connection with integrated mild steel dampers is proposed. The energy dissipation joint fully adopts a dry connection method, and the joint's ductility is significantly improved by the integrated energy-dissipating steel plates. Finite element models are established to study the effects of different diameters of steel bars and thicknesses of energydissipating steel plates on structural response and mechanical properties under low cyclic reciprocating loads. Parameter studies were carried out, and the obtained results indicate that the proposed joints can bear a greater displacement load than that of cast-in-place joints and achieve greater energy dissipation. The maximum bearing capacity of the joint can be improved by increasing the thickness of the energy-dissipating steel plates, but the bearing capacity decline period of the joint will appear in advance under the same order of loading. If designed properly, structures installed with the plug-pin joint will be expected to adjust the order of plastic hinge development, thus achieving better seismic performance.
Keyword ：
Energy dissipation Energy dissipation Plastic hinge development Plastic hinge development Plug-pin joint Plug-pin joint Seismic performance Seismic performance
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| GB/T 7714 | Chen, Shanghong , Lin, Wei , Wang, Hongjie et al. Study on plug-pin energy-dissipating joint with integrated mild steel dampers [J]. | JOURNAL OF BUILDING ENGINEERING , 2023 , 78 . |
| MLA | Chen, Shanghong et al. "Study on plug-pin energy-dissipating joint with integrated mild steel dampers" . | JOURNAL OF BUILDING ENGINEERING 78 (2023) . |
| APA | Chen, Shanghong , Lin, Wei , Wang, Hongjie , Lin, Xin , Wang, Rong . Study on plug-pin energy-dissipating joint with integrated mild steel dampers . | JOURNAL OF BUILDING ENGINEERING , 2023 , 78 . |
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The utilization of steel slag (SS) in the field of concrete remains limited due to its poor soundness. This work studies the long-term volume stability and strength development (up to 1 year) of engineered cementitious composites (ECC) containing high-volume SS. The result shows that the compressive, splitting-tensile and flexural strength of ECC containing SS begins to decline after 90 d, while the decline in the corresponding matrix is much higher. Especially, the matrix with 60 wt% SS loses its integrity by 360 d. The expansion of SS reduces the fracture toughness of the matrix, leading to an increase in toughness and ductility, while changing the cracking pattern of the ECC. Additionally, the introduction of ground granulated blast furnace slag (GGBFS) results in a decrease in volume expansion and strength loss of ECC caused by expansion of SS. Randomly distributed PVA fibers restrict volume expansion of ECC containing SS, while trapped air pores introduced with PVA fibers act as relievers, dispersing expansive stress. Combined introduction of GGBFS and PVA fibers leads to a 49.8 % reduction in expansive strain and a 126 % increase in compressive strength of ECC compared with the matrix with high-volume SS.
Keyword ：
Engineered cementitious composites Engineered cementitious composites Expansion Expansion Ground granulated blast furnace slag Ground granulated blast furnace slag Soundness Soundness Steel slag Steel slag
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| GB/T 7714 | Yang, Zhengxian , Xiong, Xiaoli , Li, Kang et al. Long-term volume stability of ECC containing high-volume steel slag [J]. | CEMENT & CONCRETE COMPOSITES , 2023 , 145 . |
| MLA | Yang, Zhengxian et al. "Long-term volume stability of ECC containing high-volume steel slag" . | CEMENT & CONCRETE COMPOSITES 145 (2023) . |
| APA | Yang, Zhengxian , Xiong, Xiaoli , Li, Kang , Briseghella, Bruno , Marano, Giuseppe Carlo , Chen, Shanghong . Long-term volume stability of ECC containing high-volume steel slag . | CEMENT & CONCRETE COMPOSITES , 2023 , 145 . |
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Abstract ：
采用钢渣矿渣复合粉替代硅酸盐水泥,钢渣骨料替代天然骨料制备碱激发钢渣-矿渣透水混凝土(ASSPC),研究不同因素下ASSPC抗压强度的变化规律,结合XRD、TG、FESEM和SEM-EDS表征ASSPC硬化胶凝材料和界面过渡区(ITZ)的微观性能,阐明胶凝材料对ASSPC力学性能发展的作用及影响机理.结果表明,ASSPC具备较高的早期抗压强度,随矿渣-钢渣掺比提高,ASSPC的抗压强度先上升后下降.采用钢渣作为骨料制备透水混凝土,可有效优化ITZ的微观性能,改善ASSPC的力学性能.随着水胶比(0.24～0.32)提高,ASSPC的抗压强度先增大后减小.
Keyword ：
力学性能 力学性能 流动性 流动性 界面过渡区 界面过渡区 碱激发钢渣-矿渣胶凝材料 碱激发钢渣-矿渣胶凝材料 透水混凝土 透水混凝土 钢渣骨料 钢渣骨料
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| GB/T 7714 | 陈尚鸿 , 林佳福 , 杨政险 et al. 钢渣-矿渣透水混凝土力学性能的试验研究 [J]. | 硅酸盐通报 , 2023 , 42 (5) : 1767-1777 . |
| MLA | 陈尚鸿 et al. "钢渣-矿渣透水混凝土力学性能的试验研究" . | 硅酸盐通报 42 . 5 (2023) : 1767-1777 . |
| APA | 陈尚鸿 , 林佳福 , 杨政险 , 张勇 , 熊晓立 . 钢渣-矿渣透水混凝土力学性能的试验研究 . | 硅酸盐通报 , 2023 , 42 (5) , 1767-1777 . |
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本实用新型涉及一种透水混凝土的流动性测试装置，包括套筒、上层筒体构件、中层筒体构件、下层槽型构件、称量容器；在所述左侧板和右侧板内壁前侧均开设有用以竖向插设前面板的凹槽；所述前面板通过凹槽实现竖向滑动拆装；在所述左侧板和右侧板的内壁均竖向分布有至少三道前后延伸的凸起固定带；在所述上层筒体构件、中层筒体构件和下层槽型构件的左右两侧均设置有用以对应固定带前后穿插的固定槽；所述称量容器的高度与下层槽型构件的高度相同。本实用新型解决了现有流动性能检测装置不适用透水混凝土的问题。本实用新型的测试结果能直接反映透水混凝土胶凝材料分布情况，可准确表征透水混凝土的流动性能，有助于优化其配合比。
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| GB/T 7714 | 陈尚鸿 , 林佳福 , 卢林 et al. 一种透水混凝土的流动性测试装置 : CN202222530395.9[P]. | 2022-09-24 00:00:00 . |
| MLA | 陈尚鸿 et al. "一种透水混凝土的流动性测试装置" : CN202222530395.9. | 2022-09-24 00:00:00 . |
| APA | 陈尚鸿 , 林佳福 , 卢林 , 杨政险 . 一种透水混凝土的流动性测试装置 : CN202222530395.9. | 2022-09-24 00:00:00 . |
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本发明公开了一种用于建筑3D打印材料用超细复合粉，所述的超细复合粉包括矿渣和钢渣或包括矿渣和矿热炉渣，经粉碎混合制备得到；将所述的超细复合粉与硅酸盐水泥、骨料(固废基)、减水剂、增稠剂和水混合后制备得到的材料可用于建筑领域的3D打印。本发明的超细复合粉将工矿企业的难以处理的废渣有效利用，提高了所述3D打印材料的强度，缩短了凝结时间，与现有技术相比具有显著的经济价值和社会效益。
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| GB/T 7714 | 陈尚鸿 , 胡宗辉 , 谢禄丁 et al. 一种用于建筑3D打印材料用超细复合粉及其制备方法 : CN202211157592.9[P]. | 2022-09-22 00:00:00 . |
| MLA | 陈尚鸿 et al. "一种用于建筑3D打印材料用超细复合粉及其制备方法" : CN202211157592.9. | 2022-09-22 00:00:00 . |
| APA | 陈尚鸿 , 胡宗辉 , 谢禄丁 , 张德长 , 郭汉彬 , 罗永斌 . 一种用于建筑3D打印材料用超细复合粉及其制备方法 : CN202211157592.9. | 2022-09-22 00:00:00 . |
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