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学者姓名：季韬
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Abstract ：
为了研究激发剂种类对脱硫石膏-碱矿渣隧道防火涂料(DGAC)性能的影响机理,固定碱掺量为4％,碱矿渣水泥掺量为20％,探究激发剂种类,即CaO+Na2CO3、Ca(OH)2+Na2CO3、CaO+Na2SO4、Ca(OH)2+Na2SO4、NaOH,其所对应的 DGAC 分别为 CNC、CHNC、CNS、CHNS、NH,对 DGAC 干燥时间、凝结时间、干密度、抗压强度、耐水性及防火性的影响,并结合扫描电子显微镜(SEM)和X射线衍射(XRD)揭示其机理.结果表明:在干燥和凝结时间方面,CNS＞CHNS＞CNC＞CHNC＞NH;在抗压强度和耐水性方面,CHNC＞CNC＞NH＞CNS＞CHNS,CHNC生成的絮状水化硅酸钙(C-S-H)凝胶较多,其与针状钙矾石交叉紧密,具有最好的耐水性和抗压强度;在防火性方面,CHNS＞CNS＞NH＞CHNC＞CNC,CHNS和CNS中的激发剂碱性较低,其生成的C-S-H凝胶数量较少,且钙矾石的形态较粗,水化产物整体结构疏松,因此其抗压强度较低,但防火性较好.
Keyword ：
激发剂 激发剂 耐水性 耐水性 脱硫石膏-碱矿渣胶凝材料 脱硫石膏-碱矿渣胶凝材料 防火性 防火性 隧道防火涂料 隧道防火涂料
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| GB/T 7714 | 陈宗燕 , 周阳升 , 赵晓雯 et al. 脱硫石膏-碱矿渣隧道防火涂料性能及机理研究 [J]. | 涂料工业 , 2025 , 55 (2) : 7-13 . |
| MLA | 陈宗燕 et al. "脱硫石膏-碱矿渣隧道防火涂料性能及机理研究" . | 涂料工业 55 . 2 (2025) : 7-13 . |
| APA | 陈宗燕 , 周阳升 , 赵晓雯 , 季韬 , 梁咏宁 . 脱硫石膏-碱矿渣隧道防火涂料性能及机理研究 . | 涂料工业 , 2025 , 55 (2) , 7-13 . |
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Employing photocatalytic technology to transform CO2 into valuable fuels is considered a promising solution for addressing the exacerbated greenhouse effect and energy crisis. The development of photocatalysts featuring superior charge separation efficiency is pivotal for the widespread implementation of photocatalytic CO2 reduction technologies. Herein, zero-dimensional (0D) NixP nanoparticles are anchored onto two-dimensional (2D) LaTiO2N nanosheets by a photo-deposition method, and a NixP/LaTiO2N Schottky junction composite with excellent photocatalytic CO2 reduction performance is constructed. The optimal NixP/LaTiO2N composite achieves CO and CH4 yields of 9.39 and 4.15 mu mol g-1 h-1, respectively, with the utilized photoelectron number (UPN) reaching 51.98 mu mol g-1, which is approximately 9.7 times higher than that of LaTiO2N alone. The improved photocatalytic performance of the composites can be attributed to the formation of Schottky junctions, which effectively suppress the recombination of photogenerated carriers. This study provides a new idea for the development of 0D/2D Schottky junction photocatalysts.
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| GB/T 7714 | Xu, Guoyu , Chen, Yanan , Lin, Peiling et al. Construction of a 0D/2D NixP/LaTiO2N Schottky junction photocatalyst for efficient visible-light-driven photocatalytic CO2 reduction [J]. | CATALYSIS SCIENCE & TECHNOLOGY , 2025 , 15 (6) : 2027-2033 . |
| MLA | Xu, Guoyu et al. "Construction of a 0D/2D NixP/LaTiO2N Schottky junction photocatalyst for efficient visible-light-driven photocatalytic CO2 reduction" . | CATALYSIS SCIENCE & TECHNOLOGY 15 . 6 (2025) : 2027-2033 . |
| APA | Xu, Guoyu , Chen, Yanan , Lin, Peiling , Zhang, Zizhong , Ji, Tao , Su, Wenyue . Construction of a 0D/2D NixP/LaTiO2N Schottky junction photocatalyst for efficient visible-light-driven photocatalytic CO2 reduction . | CATALYSIS SCIENCE & TECHNOLOGY , 2025 , 15 (6) , 2027-2033 . |
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根据最少浆体理论优化机制砂混凝土(MSC)的抗裂性能,采用人工神经网络建立名义水灰比、等效水灰比、粉煤灰掺量、矿渣掺量、石粉掺量、平均浆体厚度与MSC坍落度、抗压强度和氯离子扩散系数的非线性映射关系.利用遗传算法对MSC配合比进行优化,提出和验证基于最少浆体理论与智能算法(人工神经网络和遗传算法)的机制砂混凝土配合比设计方法.研究结果表明,在满足坍落度、28 d抗压强度及氯离子扩散系数设计要求下,优化后的MSC配合比中水泥用量和碳排放减少,实现固废利用的同时降低了混凝土单方造价,其经济效益及环境效益明显.
Keyword ：
人工神经网络 人工神经网络 最少浆体理论 最少浆体理论 机制砂混凝土 机制砂混凝土 遗传算法 遗传算法 配合比设计方法 配合比设计方法
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| GB/T 7714 | 周明翔 , 郑祥增 , 唐炜业 et al. 最少浆体理论与智能算法的机制砂混凝土配合比设计方法 [J]. | 福州大学学报（自然科学版） , 2025 , 53 (1) : 69-77 . |
| MLA | 周明翔 et al. "最少浆体理论与智能算法的机制砂混凝土配合比设计方法" . | 福州大学学报（自然科学版） 53 . 1 (2025) : 69-77 . |
| APA | 周明翔 , 郑祥增 , 唐炜业 , 罗伟文 , 谢圣林 , 季韬 . 最少浆体理论与智能算法的机制砂混凝土配合比设计方法 . | 福州大学学报（自然科学版） , 2025 , 53 (1) , 69-77 . |
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为研究配箍率对钢筋混凝土梁开裂特征的影响,依据我国规范设计了不同配箍率的钢筋混凝土梁,利用数字图像相关技术监测了钢筋混凝土梁试件在四点弯曲试验全过程,重现了不同级别荷载作用下试件的裂缝宽度及变形大小,并将试验结果与我国规范公式的计算结果进行对比.结果表明:数字图像相关技术能对全尺寸钢筋混凝土结构的裂缝及变形进行准确监测,钢筋混凝土梁在带裂缝工作阶段的裂缝宽度、间距均大于我国规范计算值,规范计算的裂缝宽度及间距均趋于保守,但我国规范可以对钢筋混凝土梁在带裂缝工作阶段的变形可以进行较好的预测.钢筋混凝土梁剪跨段裂缝分布及宽度受配箍率影响较大,纯弯段裂缝及宽度基本分布均匀,符合我国规范中裂缝计算公式的建立依据.
Keyword ：
变形分析 变形分析 开裂特征 开裂特征 数字图像相关技术 数字图像相关技术 配箍率 配箍率 钢筋混凝土梁 钢筋混凝土梁
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| GB/T 7714 | 田野 , 陈徐东 , 陈璋 et al. 基于数字图像相关技术的钢筋混凝土梁开裂特征量化研究 [J]. | 混凝土 , 2025 , (1) : 27-32 . |
| MLA | 田野 et al. "基于数字图像相关技术的钢筋混凝土梁开裂特征量化研究" . | 混凝土 1 (2025) : 27-32 . |
| APA | 田野 , 陈徐东 , 陈璋 , 吴文文 , 王宁宁 , 季韬 . 基于数字图像相关技术的钢筋混凝土梁开裂特征量化研究 . | 混凝土 , 2025 , (1) , 27-32 . |
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在超高性能混凝土(UHPC)中采用饱和面干再生细骨料(RFA),不仅可减少UHPC收缩,还能节约成本.研究了相同净水胶比下饱和面干RFA掺量(0、50％和100％)对UHPC的电通量、抗压强度和碳化深度的影响,并通过分析UHPC的水化产物和孔结构揭示其机理.研究表明:随着饱和面干RFA掺量的增大,总水胶比增大,UHPC孔结构劣化,密实度降低,抗压强度降低,碳化深度增大.然而在相同碳化条件下,饱和面干RFA掺量为100％时,UHPC的碳化深度仍分别是普通混凝土和高性能混凝土的1/37.83～1/65.61和1/11.20～1/19.92.提出并验证了掺饱和面干RFA的UHPC碳化深度模型,为再生骨料UHPC推广及应用提供依据.
Keyword ：
微结构 微结构 抗碳化性能 抗碳化性能 超高性能混凝土 超高性能混凝土 饱和面干再生细骨料 饱和面干再生细骨料
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| GB/T 7714 | 赵伟 , 胡炎通 , 季韬 et al. 饱和面干再生细骨料对UHPC抗碳化性能的影响 [J]. | 混凝土 , 2025 , (1) : 125-128,133 . |
| MLA | 赵伟 et al. "饱和面干再生细骨料对UHPC抗碳化性能的影响" . | 混凝土 1 (2025) : 125-128,133 . |
| APA | 赵伟 , 胡炎通 , 季韬 , 张冬 . 饱和面干再生细骨料对UHPC抗碳化性能的影响 . | 混凝土 , 2025 , (1) , 125-128,133 . |
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The existing fireproof coating on thick steel structures has many drawbacks, including its lack of environmental protection, susceptibility to detachment, prolonged drying duration, and intricate building procedures. In this study, magnesium potassium phosphate cement (MKPC) was selected for the development of inorganic fireproofing coatings, considering that it has better adhesion, fast hardening speed, and heat resistance compared to other cement-based materials. P/M (the mass ratio of dipotassium hydrogen phosphate to magnesium oxide) is the most important factor affecting the performance of MKPC, which indicates the ratio of the acid and base components of the system. When P/M changed, so did the content of hydration products (MKP). The experimental results demonstrate a direct correlation between the quantity of MKP and the performance of the coating. Consequently, the bonding and fire resistance mechanisms of MKPC coatings were investigated by studying the effect patterns of different P/M on the properties (bond strength, fire resistance limit, dry density, compressive strength) of MKPC fireproofing coatings in combination with microscopic tests such as SEM, TG-DSC, and MIP.
Keyword ：
bond strength bond strength fire resistance fire resistance Magnesium potassium phosphate cement Magnesium potassium phosphate cement steel structure fireproof coating steel structure fireproof coating
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| GB/T 7714 | Hu, Cheng , Lin, Xujian , Shao, Xiaoyan et al. Effect of phosphate-to-magnesium ratio on the performance of magnesium potassium phosphate cement-based steel fireproof coatings [J]. | JOURNAL OF THE CHINESE INSTITUTE OF ENGINEERS , 2025 , 48 (2) : 195-203 . |
| MLA | Hu, Cheng et al. "Effect of phosphate-to-magnesium ratio on the performance of magnesium potassium phosphate cement-based steel fireproof coatings" . | JOURNAL OF THE CHINESE INSTITUTE OF ENGINEERS 48 . 2 (2025) : 195-203 . |
| APA | Hu, Cheng , Lin, Xujian , Shao, Xiaoyan , Ji, Tao , Lin, Huangqi , Huang, Wuyan et al. Effect of phosphate-to-magnesium ratio on the performance of magnesium potassium phosphate cement-based steel fireproof coatings . | JOURNAL OF THE CHINESE INSTITUTE OF ENGINEERS , 2025 , 48 (2) , 195-203 . |
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Mimicking photosynthesis to convert CO2 and H2O into value-added chemicals represents an optimal approach to mitigate energy shortages and environmental pollution, and the development of highly efficient and selective photocatalysts for CO2 to CO conversion is essential for the effective utilization of CO2 resources. Herein, a novel 2D@0D InVO4@MnWO4 S-scheme heterojunction composite is successfully developed via an in situ hydrothermal method, achieving the conversion of CO2 into CO under visible light irradiation using H2O as a reducing agent, without any noble metal cocatalysts or sacrificial reagents. The CO generation rate over the optimal InVO4@MnWO4 composite reaches 6.20 mu mol g-1 h-1, which is approximately 4.50 times than that of InVO4. The enhanced photocatalytic performance is ascribed to the charge separation facilitated by the formation of an S-scheme heterojunction between InVO4 and MnWO4. This work is expected to provide a new insight for the design of highly selective photocatalysts for the conversion of CO2 to CO.
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| GB/T 7714 | Xiang, Wenzhuo , Xu, Guoyu , Xiao, Lujiang et al. Construction of a 2D@0D InVO4@MnWO4 S-scheme for efficient photocatalytic reduction of CO2 to CO [J]. | NEW JOURNAL OF CHEMISTRY , 2025 , 49 (9) : 3751-3758 . |
| MLA | Xiang, Wenzhuo et al. "Construction of a 2D@0D InVO4@MnWO4 S-scheme for efficient photocatalytic reduction of CO2 to CO" . | NEW JOURNAL OF CHEMISTRY 49 . 9 (2025) : 3751-3758 . |
| APA | Xiang, Wenzhuo , Xu, Guoyu , Xiao, Lujiang , Zhang, Zizhong , Ji, Tao , Su, Wenyue . Construction of a 2D@0D InVO4@MnWO4 S-scheme for efficient photocatalytic reduction of CO2 to CO . | NEW JOURNAL OF CHEMISTRY , 2025 , 49 (9) , 3751-3758 . |
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This study investigated the influence of drying shrinkage on the bond strength between alkali- activated steel slag (SS)/fly ash (FA) lightweight mortar (ASFLm) and concrete substrates. The alkali contents, defined as the mass ratio of Na2O in sodium hydroxide to the total mass of SS and FA, were set at 4 %, 6 %, 8 %, and 10 %. The compressive strength, drying shrinkage, fire resistance and bond strength of ASFLm were analyzed. Results indicated that increasing alkali content initially enhances bond strength, followed by a subsequent decline. The bond strength was maximum at 6 % alkali content with a value of 0.65 MPa. The drying shrinkage, porosity and micromechanical properties of ASFLm determined bond strength. Porosity decreased and the micromechanical properties increased when the alkali content increased from 4 % to 6 % because of the increment in the contents of C-A-S-H and C-N-A-S-H gel. Only a few microcracks were observed despite the increase in drying shrinkage, so the bond strength of ASFLm increased. ASFLm's elastic modulus improved when the alkali content increased from 6 % to 10 %. However, high drying shrinkage resulted in numerous microcracks in the ASFLm matrix. These microcracks decreased the microhardness and increased the porosity of ASFLm. Hence, the bond strength of ASFLm was reduced.
Keyword ：
Alkali-activated steel slag/fly ash lightweight Alkali-activated steel slag/fly ash lightweight Alkali content Alkali content Bond strength Bond strength Drying shrinkage Drying shrinkage mortar mortar
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| GB/T 7714 | Ma, Yu , Wang, Benjun , Zhang, Cuirong et al. Relationship of drying shrinkage and the bond strength between alkali-activated steel slag/fly ash lightweight mortar and concrete substrate: Phase assemblage and micro-mechanical property [J]. | JOURNAL OF BUILDING ENGINEERING , 2025 , 99 . |
| MLA | Ma, Yu et al. "Relationship of drying shrinkage and the bond strength between alkali-activated steel slag/fly ash lightweight mortar and concrete substrate: Phase assemblage and micro-mechanical property" . | JOURNAL OF BUILDING ENGINEERING 99 (2025) . |
| APA | Ma, Yu , Wang, Benjun , Zhang, Cuirong , Lin, Xujian , Yang, Yu , Chen, Zongyan et al. Relationship of drying shrinkage and the bond strength between alkali-activated steel slag/fly ash lightweight mortar and concrete substrate: Phase assemblage and micro-mechanical property . | JOURNAL OF BUILDING ENGINEERING , 2025 , 99 . |
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The poor water resistance has long limited the widespread application of magnesium phosphate cement (MPC). This study utilized the high-alkaline of the MgO-SiO2-K2HPO4 system to activate slag and incorporated prewater-saturated pottery sand to prepare a water-resistant magnesium-based cement (SP-MSPC). The research primarily examined the effect of pottery sand on the water resistance and microstructure of SP-MSPC with different slag substitution rates. The results indicated that an increase in pottery sand content prolonged the setting time and reduced the fluidity of the paste. The incorporation of higher amounts of pottery sand decreased the mechanical properties of the matrix, but the addition of pottery sand effectively promoted paste hydration, particularly slag hydration, significantly enhancing the water resistance of the matrix. The water resistance coefficient of the S20-P6 matrix at 56 days was 72.42 %, a 61.86 % increase compared to the control group S0P0. This can be attributed to the internal curing effect of the pottery sand, which promotes paste hydration and the continuous formation of K-struvite crystals and the water-resistant M-S-H and C-(A)-S-H gels. The crystal and gel phases were bonded to each other and work synergistically with the dense filling effect of ultrafine slag particles, effectively filling the matrix pores and microcracks, blocking moisture transport channels, slowing the penetration of external moisture, and reducing the dissolution of K-struvite crystals and other hydration products aqueous environments. The incorporation of pottery sand promoted slag hydration enhanced the average polymerization degree of the C-(A)-S-H gel, and reduced the volume of macropores within the matrix.
Keyword ：
MgO-SiO 2-K 2 HPO 4 system MgO-SiO 2-K 2 HPO 4 system Microstructure Microstructure Pre-water-saturated pottery sand Pre-water-saturated pottery sand Slag Slag Water resistance Water resistance
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| GB/T 7714 | Yao, Pengpeng , Lin, Xujian , Wu, Yuzhong et al. Understanding the effect of pre-water-saturated pottery sand on the microstructure and water resistance of the slag-blended MgO-SiO2-K2HPO4 system [J]. | CONSTRUCTION AND BUILDING MATERIALS , 2025 , 473 . |
| MLA | Yao, Pengpeng et al. "Understanding the effect of pre-water-saturated pottery sand on the microstructure and water resistance of the slag-blended MgO-SiO2-K2HPO4 system" . | CONSTRUCTION AND BUILDING MATERIALS 473 (2025) . |
| APA | Yao, Pengpeng , Lin, Xujian , Wu, Yuzhong , Ji, Tao , Liang, Yongning , Zhang, Hongru . Understanding the effect of pre-water-saturated pottery sand on the microstructure and water resistance of the slag-blended MgO-SiO2-K2HPO4 system . | CONSTRUCTION AND BUILDING MATERIALS , 2025 , 473 . |
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The fire-retardant lightweight mortar spalling from the tunnel lining substrates can threaten the safety of vehicles. The use of steel slag (SS) in alkali-activated cement can reduce the carbon emission and cost of lightweight mortar. The effects of SS on the bond strength and the microstructure of the interface between alkali-activated SS/fly ash (FA) lightweight mortar (ASFm) and concrete substrates was studied. The SS contents, namely, the mass ratio of SS to the summation of FA and SS, were 0 %, 20 %, 40 %, 60 %, and 80 %. The properties of ASFm, including compressive strength, fire resistance and bond strength, were studied. Results demonstrated that the bond strength of ASFm increases and then decreases with the increase in SS content. The highest bond strength of 0.65 MPa was obtained at 40 % SS content. Bond strength was determined by the pore structure and micromechanical properties of the matrix. When the SS content was increased from 0 % to 40 %, the content of C-A-S-H gel and C-N-A-S-H gel contents increased, and the porosity was reduced; hence, the bond strength of ASFm became larger. When the SS content increased from 40 % to 80 %, SS acted as an inhibitor, which reduced the micromechanical properties and increased the porosity of ASFm; therefore, the bond strength of ASFm decreased. This achievement provides an alternative way for the application of SS in tunnels. © 2024 Elsevier Ltd
Keyword ：
Aluminum coated steel Aluminum coated steel Bond strength (materials) Bond strength (materials) Compressive strength Compressive strength Light weight concrete Light weight concrete Mortar Mortar Slag cement Slag cement Tunnel linings Tunnel linings
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| GB/T 7714 | Ma, Yu , Zhang, Cuirong , Lin, Xujian et al. Bond between alkali-activated steel slag/fly ash lightweight mortar and concrete substrates: Strength and microscopic interactions [J]. | Construction and Building Materials , 2024 , 449 . |
| MLA | Ma, Yu et al. "Bond between alkali-activated steel slag/fly ash lightweight mortar and concrete substrates: Strength and microscopic interactions" . | Construction and Building Materials 449 (2024) . |
| APA | Ma, Yu , Zhang, Cuirong , Lin, Xujian , Ye, Yongbin , Ye, Xiaoqing , Ji, Tao . Bond between alkali-activated steel slag/fly ash lightweight mortar and concrete substrates: Strength and microscopic interactions . | Construction and Building Materials , 2024 , 449 . |
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