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学者姓名：章灿林
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Abstract ：
为了建立合理的坑槽修补材料评价方法，选择性能优良且适合特定环境的修补材料。通过叶片阻力试验、水煮试验、滚动筛试验、马歇尔稳定度试验、车辙试验、低温弯曲蠕变试验和冻融劈裂试验来测试修补料的施工性能和路用性能，并对修补料的评价标准进行修订。基于试验结果，建议修补料的黏附等级、滚动筛残留率和水稳定性分别不小于4级、60%和75%。并且，热补料的动稳定度和最大弯曲应变应分别不小于800次·mm~(-1)和2 300με,冷补料应不小于600次·mm~(-1)和900με。在施工和易性方面，对于不可储存类的修补料建议现场拌制，并在制备后30 min内尽快完成修补施工作业，拌和扭矩需要小于40 N·m。此外，水泥-乳化沥青和环氧树脂冷补料的初始强度较高，高温稳定性好，可以实现快速修补的目的，建议初始稳定度不小于2 kN。
Keyword ：
修补料 修补料 修补材料性能 修补材料性能 坑槽修补 坑槽修补 沥青路面 沥青路面 评价指标 评价指标
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| GB/T 7714 | 徐松 , 徐康义 , 王叶飞 et al. 沥青路面坑槽修补材料特性及评价标准 [J]. | 南昌大学学报(工科版) , 2024 , 46 (01) : 69-75 . |
| MLA | 徐松 et al. "沥青路面坑槽修补材料特性及评价标准" . | 南昌大学学报(工科版) 46 . 01 (2024) : 69-75 . |
| APA | 徐松 , 徐康义 , 王叶飞 , 黄金铭 , 章灿林 , 贾晓娟 . 沥青路面坑槽修补材料特性及评价标准 . | 南昌大学学报(工科版) , 2024 , 46 (01) , 69-75 . |
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为揭示移动荷载作用下公路隧道复合式路面结构力学响应，通过现场试验与有限元法相结合及模型精度验证的手段，基于响应面试验设计方法分析有仰拱和无仰拱的隧道复合式路面力学响应。结果表明，无论有仰拱，还是无仰拱，轴载对各项力学指标的影响最大，混凝土基层厚度对各项力学指标的影响较小，水平荷载对混凝土面板板底拉应力和沥青面层层间剪应力的影响较大、对沥青面层层底拉应变影响较小；无仰拱时围岩模量对各项力学指标的影响大于有仰拱；有仰拱时混凝土面层厚度对沥青面层层底拉应变的影响大于沥青面层厚度，混凝土面层厚度对沥青面层层间剪应力的影响大于基层厚度，无仰拱时影响相反；有仰拱隧道复合式路面结构轴载换算系数得到混凝土面层设计轴次是现行规范的1.8倍，无仰拱是1.3倍；有仰拱、无仰拱时混凝土面层疲劳寿命分别比设计轴载大17和8个数量级，沥青面层疲劳寿命均比设计轴载大1个数量级。研究结果可为隧道复合式路面结构设计研究提供参考。
Keyword ：
力学响应 力学响应 响应面 响应面 疲劳寿命 疲劳寿命 移动荷载 移动荷载 隧道复合式路面 隧道复合式路面
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| GB/T 7714 | 翁斌 , 张超 , 阙云 et al. 基于响应面法的隧道复合式路面力学响应分析 [J]. | 森林工程 , 2024 , 40 (02) : 176-187 . |
| MLA | 翁斌 et al. "基于响应面法的隧道复合式路面力学响应分析" . | 森林工程 40 . 02 (2024) : 176-187 . |
| APA | 翁斌 , 张超 , 阙云 , 章灿林 , 徐松 . 基于响应面法的隧道复合式路面力学响应分析 . | 森林工程 , 2024 , 40 (02) , 176-187 . |
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Assessing the seismic capacity of pier columns is a crucial element in the performance -based seismic design of bridges. Such assessment necessitates a probabilistic approach to accurately determine the marginal probability distributions of seismic capacities and to characterize the dependencies among these variables. In response to this need, this paper employs Multi -Output Gaussian Process Regression (MO-GPR), a probabilistic machine learning method, to jointly model the multiple seismic capacities of pier columns. We initially introduce a probabilistic seismic capacity model that utilizes MO-GPR for pier columns and validate its predictive accuracy in comparison to Bayesian linear regression and existing empirical methods. Subsequently, the methodology is augmented by the integration of hierarchical modeling within the MO-GPR framework, resulting in a Multi -Output Hierarchical Gaussian Process Regression (MO-HGPR) model that effectively estimates intraclass correlation coefficients for specific types of datasets. It is postulated that these correlation coefficients also reflect correlations associated with multiple components of the real structure. This study employs MO-HGPR and MO-GPR separately to investigate the potential correlations of seismic capacities among pier columns and distinct limit states. The results demonstrate that the MO-GPR model exhibits superior prediction accuracy and more effectively portrays uncertainty compared to existing empirical models. Moreover, the correlations of seismic capacities among piers and limit states are both robust and significantly impact the seismic fragility of bridges. This finding highlights the essential nature of considering capacities correlations in seismic fragility or risk assessment processes.
Keyword ：
Damage limit states Damage limit states Gaussian process regression Gaussian process regression Hierarchical model Hierarchical model Pier columns Pier columns Seismic capacity correlation Seismic capacity correlation Seismic fragility Seismic fragility
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| GB/T 7714 | Mo, Ruchun , Chen, Libo , Chen, Yu et al. Prediction and correlations estimation of seismic capacities of pier columns: Extended Gaussian process regression models [J]. | STRUCTURAL SAFETY , 2024 , 109 . |
| MLA | Mo, Ruchun et al. "Prediction and correlations estimation of seismic capacities of pier columns: Extended Gaussian process regression models" . | STRUCTURAL SAFETY 109 (2024) . |
| APA | Mo, Ruchun , Chen, Libo , Chen, Yu , Xiong, Chuanxiang , Zhang, Canlin , Chen, Zhaowu et al. Prediction and correlations estimation of seismic capacities of pier columns: Extended Gaussian process regression models . | STRUCTURAL SAFETY , 2024 , 109 . |
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In this study, a novel approach based on Munsell value was established to reveal the relationship between the aging degree and color vision of asphalt. Five different asphalt binders were treated by three types of aging protocols such as thin film oven test (TFOT), pressure aging vessel (PAV), and ultraviolet (UV) radiation, then the effects of each aging treatment on the ductility and color spectrum (collected by a spectrometer, AvaField-3) of the binders were studied. The results show that the ductility of five binders is decreased after the three aging modes (including TFOT, PAV and UV aging), nevertheless, the Munsell values show different behaviors, they become smaller after TFOT and PAV aging while becoming larger after UV aging. Scanning electron microscope (SEM) photographs show that the UV aging leads to a transformation of the binder's surface from smooth to pleated, thus the specular reflection of the asphalt surface changes into diffuse reflection, resulting in an increase in Munsell value of asphalt after UV aging. Meanwhile, the variation of Munsell value for the asphalt after UV aging is larger than that for asphalt after thermal oxidative aging, resulting in the increase of Munsell value of asphalt which undergoes thermal oxidative aging and UV aging. Based on field data collection and analysis, a linear regression equation (R2 = 0.915) is established between the Munsell value and the service life of asphalt pavement, which shows that the asphalt pavement will become white with the service life-prolonging. Based on this study, the method of Munsell value can be a promising approach to evaluate the aging degree of asphalt pavement.
Keyword ：
Aging Aging Asphalt Asphalt Ductility Ductility Munsell value Munsell value Scanning electron microscope Scanning electron microscope
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| GB/T 7714 | Xu, Song , Wang, Yefei , Fang, Lei et al. A Novel Approach Based on Munsell Value for the Evaluation of Asphalt Aging Degree [J]. | INTERNATIONAL JOURNAL OF PAVEMENT RESEARCH AND TECHNOLOGY , 2024 . |
| MLA | Xu, Song et al. "A Novel Approach Based on Munsell Value for the Evaluation of Asphalt Aging Degree" . | INTERNATIONAL JOURNAL OF PAVEMENT RESEARCH AND TECHNOLOGY (2024) . |
| APA | Xu, Song , Wang, Yefei , Fang, Lei , Zhang, Canlin , Jia, Xiaojuan , Yuan, Yan . A Novel Approach Based on Munsell Value for the Evaluation of Asphalt Aging Degree . | INTERNATIONAL JOURNAL OF PAVEMENT RESEARCH AND TECHNOLOGY , 2024 . |
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Up to now, the underlying mechanism about the salt erosion aging of the asphalt has not been fully revealed yet, leading to the limitation of research on extending the lifespan of asphalt in salt erosion environment. Therefore, this work adopted the molecular dynamics (MD) method, aimed to investigate the potential mechanism of the salt erosion aging behavior of the asphalt from a molecular perspective. The asphalt models invaded by sodium sulfate and sodium chloride were established, and the invading salt amount was controlled to simulate the different aging degree. Various thermodynamics and energy parameters are output as simulation results. Results indicated that the potential energy and CED of the asphalt raise with the increasing amount of the salt invading into the asphalt, and the sodium sulfate exhibits a significant impact on increasing energy compared to the sodium chloride. Besides, the introduction of the salt increased the FFV of the asphalt, increasing the possibility of water damage in asphalt. Results of RDF exhibited that salt will intensify the self-assembly of the asphaltenes, which will endow asphalt with stronger elastic response. Moreover, at the same weight, sodium chloride had a larger number of ions, which formed wider connection with the asphaltenes, leading to a more serious self-assembly behavior compared to the sodium sulfate. In addition, the curve of relative concentration showed that the presence of salt prompted the weak or no polar fractions to separate from asphalt and enter the aqueous phase, which was called salt-out. Finally, an aging test in the laboratory was conducted, and the results prove the accuracy of the simulation. © 2024 Elsevier Ltd
Keyword ：
Asphalt Asphalt Molecular dynamics Molecular dynamics Salt erosion aging Salt erosion aging Salt-out Salt-out Self-assembly Self-assembly
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| GB/T 7714 | Cai, S. , Xu, S. , Tong, Z. et al. Investigation on the evolution of asphalt molecular structure under the salt erosion environment based on molecular dynamics simulation [J]. | Construction and Building Materials , 2024 , 443 . |
| MLA | Cai, S. et al. "Investigation on the evolution of asphalt molecular structure under the salt erosion environment based on molecular dynamics simulation" . | Construction and Building Materials 443 (2024) . |
| APA | Cai, S. , Xu, S. , Tong, Z. , Fang, L. , Zhang, C. , Fu, D. et al. Investigation on the evolution of asphalt molecular structure under the salt erosion environment based on molecular dynamics simulation . | Construction and Building Materials , 2024 , 443 . |
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To improve the durability of marine renewable energy infrastructures, this paper proposed a weathering steel reinforced seawater sea-sand concrete (WSRSSC) structure and investigated its interfacial bond-slip behavior. Forty specimens were designed and underwent simulated marine corrosion tests and push-out tests to explore the effect of various factors, including the corrosion time, shaped steel type, steel section form, seawater sea-sand concrete (SSC) strength, and stirrup spacing. The findings indicated that the ultimate bond stress and residual bond stress increase with higher SSC strength but decrease with greater stirrup spacing. The steel section form significantly affected the ultimate bond stress. With the increase in corrosion time, the ultimate bond stress of WSRSSC specimens first increased and then slowly decreased in the later stages. Weathering steel specimens demonstrated superior corrosion resistance and long-term performance compared to carbon steel specimens. Considering the bond formation mechanism and corrosion damage, the calculation model for the ultimate bond stress and residual bond stress of WSRSSC specimens was proposed. Furthermore, the four-stage bond-slip constitutive model between weathering steel and seawater sea-sand concrete was established, aligning with the bond characteristics of different corrosion degrees and contributing to the numerical simulation of WSRSSC structures in corrosive marine environments.
Keyword ：
Constitutive model Constitutive model Interfacial bond-slip behavior Interfacial bond-slip behavior Marine corrosion Marine corrosion Push-out test Push-out test Seawater sea-sand concrete Seawater sea-sand concrete Weathering steel Weathering steel
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| GB/T 7714 | Li, Xuetong , Lin, Yuhan , Zhang, Canlin et al. Experimental study on interfacial bond-slip behavior of weathering steel and seawater sea-sand concrete in corrosive marine environments [J]. | THIN-WALLED STRUCTURES , 2024 , 201 . |
| MLA | Li, Xuetong et al. "Experimental study on interfacial bond-slip behavior of weathering steel and seawater sea-sand concrete in corrosive marine environments" . | THIN-WALLED STRUCTURES 201 (2024) . |
| APA | Li, Xuetong , Lin, Yuhan , Zhang, Canlin , Chen, Yu , Chen, Wei , Geng, Li . Experimental study on interfacial bond-slip behavior of weathering steel and seawater sea-sand concrete in corrosive marine environments . | THIN-WALLED STRUCTURES , 2024 , 201 . |
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SBS modified asphalt (SBSMA) pavements have gained popularity worldwide due to their prominent performance. However, its maintenance and reconstruction projects will produce a large amount of reclaimed asphalt pavement (RAP) during the long-term service of asphalt pavement. Adding rejuvenators products is a common method to recycling RAP. However, conventional rejuvenators are typical component regulators applicable to recycling unmodified asphalt, while there is a poor regeneration effect for the aged SBS modified asphalt (ASBSMA), because it cannot repair the degraded SBS polymer. Fortunately, reactive rejuvenator (RR) has achieved this breakthrough based on the research findings in recent years. It contains special compounds that have the ability to repair the degraded SBS. The vital questions to be investigated in the present review are how the four current systems of RR (epoxy system, isocyanate system, compound system and polymer system) affect ASBSMA's properties and how well does its regeneration effect. Existing research indicated that RRs are favorable for the regeneration of A-SBSMA and have their respective characteristics. This review summaries various RR different regeneration mechanism, and analyzed its effects on physical properties, rheological properties, high and low temperature properties, and microscopic characteristics of A-SBSMA. Although research on RR is still in its infancy with a limited number of relevant studies, they show an excellent regeneration effect for A-SBSMA and hold a promising prospect. Overall, this review provides information on the feasibility of using RR as a sustainable SBSMA rejuvenator to promote conserving resources and reusing RAP.
Keyword ：
Microscopic characteristics Microscopic characteristics Physical properties Physical properties Reactive rejuvenator Reactive rejuvenator Re-crosslinking SBS polymer Re-crosslinking SBS polymer Regeneration mechanism Regeneration mechanism Rheological properties Rheological properties SBS modified asphalt SBS modified asphalt
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| GB/T 7714 | Xu, Song , Tang, Guangming , Pan, Shilong et al. Application of reactive rejuvenator in aged SBS modified asphalt regeneration: A review [J]. | CONSTRUCTION AND BUILDING MATERIALS , 2024 , 421 . |
| MLA | Xu, Song et al. "Application of reactive rejuvenator in aged SBS modified asphalt regeneration: A review" . | CONSTRUCTION AND BUILDING MATERIALS 421 (2024) . |
| APA | Xu, Song , Tang, Guangming , Pan, Shilong , Ji, Zhiyuan , Fang, Lei , Zhang, Canlin et al. Application of reactive rejuvenator in aged SBS modified asphalt regeneration: A review . | CONSTRUCTION AND BUILDING MATERIALS , 2024 , 421 . |
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The cinnamic acid intercalated layered double hydroxides (CA-LDHs) were prepared by anion exchange method and analyzed by X-ray diffractometer (XRD) Fourier transform infrared (FTIR) spectrometer, scanning electron microscopy (SEM), contact angle goniometer, ultraviolet and visible (UV-vis) spectroscopy, and thermogravimetric (TG) analysis system. Then, the CA-LDHs were added to styrene-butadiene-styrene (SBS) modified bitumen together with an antioxidant composed of octadecyl-3-(3,5di-tert-butyl-4-hydroxyphenyl)-propionate (1076) and tris(2,4-di-tert-butylphenyl) phosphite (168) at a mass ratio of 1 : 1. The effects of antioxidant/CA-LDHs on the physical and rheological properties and chemical composition and characteristics of SBS-modified bitumen before and after pressurized aging vessel (PAV) and ultraviolet (UV) aging were investigated. The results revealed that CA was successfully intercalated into the interlayer space of LDHs. Meanwhile, the CA-LDHs performed improved hydrophobicity and UV absorption capacity compared with LDHs, resulting in enhanced compatibility of LDHs with SBS-modified bitumen, and then the antiaging properties of SBS-modified bitumen could be further strengthened, especially the anti-UV aging properties. Moreover, the mixture of antioxidants and CA-LDHs could synergistically improve the SBS-modified bitumen's thermal- and photo-oxidative aging resistance.
Keyword ：
Antioxidant Antioxidant Cinnamic acid intercalated layered double hydroxides (CA-LDHs) Cinnamic acid intercalated layered double hydroxides (CA-LDHs) Photo-oxidative aging Photo-oxidative aging Styrene-butadiene-styrene (SBS)-modified bitumen Styrene-butadiene-styrene (SBS)-modified bitumen Thermal-oxidative aging Thermal-oxidative aging
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| GB/T 7714 | Xu, Song , Jia, Xiaojuan , Pan, Shilong et al. Effect of Antioxidant/CA-LDHs on the Properties of SBS-Modified Bitumen [J]. | JOURNAL OF MATERIALS IN CIVIL ENGINEERING , 2024 , 36 (3) . |
| MLA | Xu, Song et al. "Effect of Antioxidant/CA-LDHs on the Properties of SBS-Modified Bitumen" . | JOURNAL OF MATERIALS IN CIVIL ENGINEERING 36 . 3 (2024) . |
| APA | Xu, Song , Jia, Xiaojuan , Pan, Shilong , Ma, Zirong , Fang, Lei , Zhang, Canlin et al. Effect of Antioxidant/CA-LDHs on the Properties of SBS-Modified Bitumen . | JOURNAL OF MATERIALS IN CIVIL ENGINEERING , 2024 , 36 (3) . |
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To promote the anti-ageing performance of asphalt, layered double hydroxides (LDHs) modified by propyl trimethoxylsilane (MPMS) was prepared and applied to modify asphalt. Fourier transform infrared spectroscopy (FTIR) showed that MPMS was chemically-grafted on the surface of LDHs. The interaction between LDHs and asphalt was significantly enhanced after MPMS organic modification, and MPMS organic LDHs (OMLDHs) exhibited better compatibility in asphalt. OMLDHs and LDHs could enhance the high-temperature properties of asphalt, particularly OMLDHs. After ageing, the properties and structure of asphalt were dramatically degenerated. The incorporation of LDHs could inhibit the oxygenic groups increase in asphalt molecules during ageing, and retard the gelatinization of colloidal structures. LDHs could alleviate the negative effect of ageing on asphalt, and improve the anti-ageing performance of asphalt. The improvement effectiveness of LDHs on the anti-ageing performance of asphalt was remarkably improved after MPMS modification.
Keyword ：
Anti-ageing performance Anti-ageing performance Asphalt Asphalt Chemical components Chemical components Chemical structure Chemical structure Layered double hydroxides Layered double hydroxides Molecular dynamics simulation Molecular dynamics simulation Rheological properties Rheological properties Surface organic modification Surface organic modification
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| GB/T 7714 | Zhang, Canlin , Chen, Minxuan , Wang, Ting et al. Evaluation of surface organic layered double hydroxides on the anti-ageing performance of asphalt [J]. | CONSTRUCTION AND BUILDING MATERIALS , 2024 , 413 . |
| MLA | Zhang, Canlin et al. "Evaluation of surface organic layered double hydroxides on the anti-ageing performance of asphalt" . | CONSTRUCTION AND BUILDING MATERIALS 413 (2024) . |
| APA | Zhang, Canlin , Chen, Minxuan , Wang, Ting , Xu, Song , Li, Yifei , Que, Yun et al. Evaluation of surface organic layered double hydroxides on the anti-ageing performance of asphalt . | CONSTRUCTION AND BUILDING MATERIALS , 2024 , 413 . |
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2-hydroxy-4-methoxybenzophenone-5-sulfonic acid (ultraviolet absorbent, BP) intercalated layered double hydroxide (LDH) was synthesized to enhance the anti-ageing properties of styrene-butadiene-styrene block copolymer (SBS) modified bitumen (SMB). X-ray diffraction and UV-vis spectroscopy indicated that BP has been successfully substituted into LDH interlamination, and BP intercalated LDH (BP-LDH) exhibited better UV absorptive capacity than LDH. Then, the physical and rheological properties, chemical structure of BP-LDH and LDH modified SMB before and after ageing were comprehensively studied. Compared with LDH, BP-LDH possessed the smaller difference in solubility parameters (delta) and the stronger interaction energy (Einter) with SMB, resulting in the better compatibility of BP-LDH modified SMB. The high-temperature stability of SMB was promoted with the addition of BP-LDH or LDH, especially BP-LDH. After ageing, the temperature susceptibility, low-temperature anti-cracking and anti-fatigue cracking of SMB were deteriorated, the oxygen-containing groups (C = O and S = O) in SMB noticeably increased and carbon-carbon double bond (C = C) concurrently decreased. LDH could mitigate the ruin of ageing on the performance and chemical structures of SMB, and strengthen the anti-ageing performance. Furthermore, BP intercalated modification could further significantly heighten the performance of LDH.
Keyword ：
Anti-ageing ability Anti-ageing ability Compatibility Compatibility Layered double hydroxide Layered double hydroxide Molecular dynamics simulation Molecular dynamics simulation Rheological properties Rheological properties SBS modified bitumen SBS modified bitumen
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| GB/T 7714 | Wang, Ting , Wu, Jiangxin , Zhang, Canlin et al. Styrene-butadiene-styrene block copolymer modified bitumen with ultraviolet absorbent intercalated layered double hydroxide: Compatibility and anti-ageing properties [J]. | JOURNAL OF MOLECULAR LIQUIDS , 2024 , 410 . |
| MLA | Wang, Ting et al. "Styrene-butadiene-styrene block copolymer modified bitumen with ultraviolet absorbent intercalated layered double hydroxide: Compatibility and anti-ageing properties" . | JOURNAL OF MOLECULAR LIQUIDS 410 (2024) . |
| APA | Wang, Ting , Wu, Jiangxin , Zhang, Canlin , Yang, Shuai , Dong, Hongjun , Hu, Shikai et al. Styrene-butadiene-styrene block copolymer modified bitumen with ultraviolet absorbent intercalated layered double hydroxide: Compatibility and anti-ageing properties . | JOURNAL OF MOLECULAR LIQUIDS , 2024 , 410 . |
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