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学者姓名:章灿林

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Strength prediction and uncertainty quantification of welded CHS tubular joints via Gaussian process regression SCIE
期刊论文 | 2025 , 332 | ENGINEERING STRUCTURES
Abstract&Keyword Cite Version(2)

Abstract :

The assessment of the strength of welded Circular Hollow Section (CHS) steel tubular joints is of paramount importance in the safe design of engineered structures. In order to address this core factor, this paper employs Gaussian Process Regression (GPR), a probabilistic machine learning method based on a collected database, with the objective of modelling and predicting the strength of three types of welded CHS steel tubular joints and effectively quantifying their associated uncertainties. This study presents two strength prediction models for welded CHS steel tubular joints: a Single-Output Gaussian Process Regression (SOGPR) model and a Multi-task Gaussian Process Regression (MTGPR) model. The models are evaluated and compared with existing empirical approaches, design guides, non-probabilistic machine learning methods, and Bayesian Linear Regression. The objective is to demonstrate the accuracy and high efficiency of the predictions made by these models. Furthermore, the MTGPR model employs the shared information between the three types of joints to enhance the prediction performance. Subsequently, the SHapley Additive exPlanations method was employed to examine the interpretability of the GPR model in relation to the strength uncertainty of welded CHS steel tubular joints. Ultimately, the uncertainty in the strength of the three welded CHS steel tubular joints is quantified based on the proposed prediction methodology in conjunction with Monte Carlo Simulation through the utilisation of Sobol sensitivity analysis and Morris sensitivity analysis. The findings indicate that the chord diameter D and chord length L of welded CHS steel tubular joints have the greatest impact on the uncertainty of strength. The aforementioned study facilitates the optimisation of the design of actual engineering structures, the management of the range of strength uncertainty and the enhancement of the safety and reliability of engineering structures.

Keyword :

Gaussian process regression Gaussian process regression Sensitivity analysis Sensitivity analysis Strength prediction Strength prediction Uncertainty quantification Uncertainty quantification Welded CHS steel tubular joints Welded CHS steel tubular joints

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GB/T 7714 Chen, Bowen , Chen, Libo , Mo, Ruchun et al. Strength prediction and uncertainty quantification of welded CHS tubular joints via Gaussian process regression [J]. | ENGINEERING STRUCTURES , 2025 , 332 .
MLA Chen, Bowen et al. "Strength prediction and uncertainty quantification of welded CHS tubular joints via Gaussian process regression" . | ENGINEERING STRUCTURES 332 (2025) .
APA Chen, Bowen , Chen, Libo , Mo, Ruchun , Wang, Zongcheng , Zheng, Li , Zhang, Canlin et al. Strength prediction and uncertainty quantification of welded CHS tubular joints via Gaussian process regression . | ENGINEERING STRUCTURES , 2025 , 332 .
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Strength prediction and uncertainty quantification of welded CHS tubular joints via Gaussian process regression Scopus
期刊论文 | 2025 , 332 | Engineering Structures
Strength prediction and uncertainty quantification of welded CHS tubular joints via Gaussian process regression EI
期刊论文 | 2025 , 332 | Engineering Structures
Study of multi-component solid waste synergistically solidified soil and its microscopic mechanism SCIE
期刊论文 | 2025 , 460 | CONSTRUCTION AND BUILDING MATERIALS
WoS CC Cited Count: 1
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Abstract :

To reduce the consumption of Ordinary Portland Cement (OPC) in subgrade reinforcement, steel slag (SS) and calcium carbide residual (CCR) were applied to solidify undesirable soil. The relationship between the unconfined compressive strength of solidified soil and OPC, SS, CCR was analysed by response surface method. The result showed that SS and CCR exhibited synergistic enhancement on the strength of solidified soil. Compared with OPC solidified soil, the introduction of 11 % SS and 6.5 % CCR could reduce 4 % OPC at the same strength. OPC/SS/CCR solidified soil could reduce cement consumption and recycle industrial solid wastes, which was conducive to reducing carbon emissions and protecting ecological environment. Then, the interaction mechanism of SS and CCR on the strength of solidified soil was thoroughly investigated by crystal structure, chemical composition and micro-structural morphology. CCR increased the alkalinity of soil and SS provided silica-aluminum oxides, these two solid wastes synergistically promoted the hydration reaction. Compared with original and OPC solidified soil, newly produced AFt (3CaOAl2O33CaSO(4)32 H2O), more C-S-H (CaOSiO22 H2O) and calcite were found in OPC/SS/CCR solidified soil. These hydration products could fill the deleterious (extra-large pores (>20 mu m) and large pores (5-20 mu m)) in soil, reduce the porosity and enhance the compactness, which achieved a significant increase in the strength of solidified soil.

Keyword :

Cement replacement Cement replacement Solid waste Solid waste Strength prediction Strength prediction Synergistic mechanism Synergistic mechanism Undesirable soil solidification Undesirable soil solidification

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GB/T 7714 Luo, Zuolong , Liu, Zhiwei , Zhang, Canlin et al. Study of multi-component solid waste synergistically solidified soil and its microscopic mechanism [J]. | CONSTRUCTION AND BUILDING MATERIALS , 2025 , 460 .
MLA Luo, Zuolong et al. "Study of multi-component solid waste synergistically solidified soil and its microscopic mechanism" . | CONSTRUCTION AND BUILDING MATERIALS 460 (2025) .
APA Luo, Zuolong , Liu, Zhiwei , Zhang, Canlin , Li, Guoxiang , Han, Xiaobin , Que, Yun . Study of multi-component solid waste synergistically solidified soil and its microscopic mechanism . | CONSTRUCTION AND BUILDING MATERIALS , 2025 , 460 .
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Study of multi-component solid waste synergistically solidified soil and its microscopic mechanism Scopus
期刊论文 | 2025 , 460 | Construction and Building Materials
Study of multi-component solid waste synergistically solidified soil and its microscopic mechanism EI
期刊论文 | 2025 , 460 | Construction and Building Materials
Investigating the anti-ageing property of SBS copolymer modified bitumen incorporating surface organic layered double hydroxides SCIE
期刊论文 | 2025 , 463 | CONSTRUCTION AND BUILDING MATERIALS
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Abstract :

3-mercaptopropyltriethoxysilane (KH580) surface organic layered double hydroxides (LDHs) was synthesized to simultaneously bolster the anti-ageing property of SBS copolymer modified bitumen (SMB). The X-ray diffraction and X-ray photoelectron spectroscopy proved that the KH580 was successfully grafted on the surface of LDHs (KH-LDHs). After KH580 surface organic modification, the aggregation and hydrophilicity of LDHs were significantly restrained, and the UV absorbing capacity was concurrently enhanced. Compared with LDHs, KHLDHs exhibited superior compatibility within SMB and could improve the high-temperature performance and elastic behavior of SMB much better. After ageing, SMB became stiff and crisp, the rheological properties worsened, and the number of oxygen-containing groups (C--O and S--O) in SMB experienced a considerable rise. Simultaneously, SBS copolymer also degraded during the ageing process, further deteriorating the performance of SMB. LDHs was able to inhibit the ageing repercussions on the rheological properties, chemical structure and SBS copolymer, thus bolstering both the anti-ageing property of SMB and the degradation resistance of SBS copolymer. Furthermore, the role of LDHs would be dramatically strengthened by KH580 surface organic modification.

Keyword :

Anti-ageing property Anti-ageing property Bitumen Bitumen Degradation resistance Degradation resistance Layered double hydroxides Layered double hydroxides SBS copolymer SBS copolymer Surface organic modification Surface organic modification

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GB/T 7714 Dong, Hongjun , Zhang, Canlin , Weng, Yiwei et al. Investigating the anti-ageing property of SBS copolymer modified bitumen incorporating surface organic layered double hydroxides [J]. | CONSTRUCTION AND BUILDING MATERIALS , 2025 , 463 .
MLA Dong, Hongjun et al. "Investigating the anti-ageing property of SBS copolymer modified bitumen incorporating surface organic layered double hydroxides" . | CONSTRUCTION AND BUILDING MATERIALS 463 (2025) .
APA Dong, Hongjun , Zhang, Canlin , Weng, Yiwei , Wang, Ting , Yang, Shuai , Ma, Shijie et al. Investigating the anti-ageing property of SBS copolymer modified bitumen incorporating surface organic layered double hydroxides . | CONSTRUCTION AND BUILDING MATERIALS , 2025 , 463 .
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Investigating the anti-ageing property of SBS copolymer modified bitumen incorporating surface organic layered double hydroxides EI
期刊论文 | 2025 , 463 | Construction and Building Materials
Investigating the anti-ageing property of SBS copolymer modified bitumen incorporating surface organic layered double hydroxides Scopus
期刊论文 | 2025 , 463 | Construction and Building Materials
A novel method to improve the anti-ageing ability of bitumen by organic LDHs/SBS composite: Preparation, performance evaluation and mechanism analysis SCIE
期刊论文 | 2025 , 383 | FUEL
WoS CC Cited Count: 2
Abstract&Keyword Cite Version(2)

Abstract :

gamma- aminopropyltriethoxy silane organic layered double hydroxides (LDHs) and SBS were combined into LDHs/SBS composite to improve anti-ageing performance of SBS modified bitumen (SMB). XPS and SEM showed that organic LDHs (OLDHs) was successfully grafted onto SBS, and OLDHs could be more evenly distributed in SBS, which was conducive to improve the anti-degradation capability of SBS. Compared with SBS and LDHs/SBS composite, the interaction between OLDHs/SBS composite and bitumen was stronger, resulting in the better stabilization of SBS and LDHs in bitumen. Furthermore, OLDHs/SBS composite could enhance the hightemperature property of SMB. SMB became hard and brittle during ageing, the physical and rheological properties were remarkably deteriorated. LDHs/SBS and OLDHs/SBS composite could alleviate the damage of ageing on the highand low-temperature performance of SMB and enhance the anti-ageing capacity, particularly OLDHs/SBS composite. Then, the improvement mechanism of OLDHs/SBS and LDHs/SBS composite on the anti- ageing capability of SMB was analyzed at microscopic scale. LDHs/SBS and OLDHs/SBS composite could hinder the infiltration of oxygen into bitumen and decrease the oxygen content, and simultaneously decelerate the oxygen diffusion rate in bitumen. The synergistic combination of these two functions conspicuously diminished the probability of oxygen colliding with bitumen or SBS, which relieved the ageing of bitumen and the degradation of SBS, and ultimately improved the anti-ageing capability of SMB. Furthermore, due to the better stability, the effectiveness of OLDHs/SBS composite was more notable than LDHs/SBS composite, OLDHs/SBS composite demonstrated superior improvement on the anti-ageing capability of SMB than LDHs/SBS composite.

Keyword :

Anti-ageing ability Anti-ageing ability Bitumen Bitumen LDHs/SBS composite LDHs/SBS composite Molecular dynamics simulation Molecular dynamics simulation Rheological properties Rheological properties

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GB/T 7714 Zhang, Canlin , Yang, Shuai , Wang, Ting et al. A novel method to improve the anti-ageing ability of bitumen by organic LDHs/SBS composite: Preparation, performance evaluation and mechanism analysis [J]. | FUEL , 2025 , 383 .
MLA Zhang, Canlin et al. "A novel method to improve the anti-ageing ability of bitumen by organic LDHs/SBS composite: Preparation, performance evaluation and mechanism analysis" . | FUEL 383 (2025) .
APA Zhang, Canlin , Yang, Shuai , Wang, Ting , Xu, Song , Jin, Peng , Dong, Hongjun et al. A novel method to improve the anti-ageing ability of bitumen by organic LDHs/SBS composite: Preparation, performance evaluation and mechanism analysis . | FUEL , 2025 , 383 .
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A novel method to improve the anti-ageing ability of bitumen by organic LDHs/SBS composite: Preparation, performance evaluation and mechanism analysis EI
期刊论文 | 2025 , 383 | Fuel
A novel method to improve the anti-ageing ability of bitumen by organic LDHs/SBS composite: Preparation, performance evaluation and mechanism analysis Scopus
期刊论文 | 2025 , 383 | Fuel
Investigation on active rejuvenation mechanism of aged SBS modified bitumen: Insights from experiments and molecular dynamics SCIE
期刊论文 | 2025 , 238 | POLYMER DEGRADATION AND STABILITY
WoS CC Cited Count: 2
Abstract&Keyword Cite Version(2)

Abstract :

SBS modified bitumen (SMB) is widely used for its excellent physical and rheological properties, but it is susceptible to aging due to exposure to environmental factors such as heat, light, and oxygen. This aging process involves bitumen aging and SBS degradation, which complicates the rejuvenation of SMB. In order to explore the rejuvenation mechanism of aged SMB, particularly emphasizing the rejuvenation effects of epoxy compounds (BUDGE, TMPGE, and RDGE), a combination of molecular dynamics simulation and experiments was employed. The thermodynamic, chemical, and physical properties of rejuvenated SMB were analyzed. Results show that BUDGE and its repaired SBS exhibit excellent flexibility compared to TMPGE, improving cohesive energy density and free volume of aged bitumen, which facilitates recovery of ductility in aged SMB. Conversely, SBS repaired with RDGE increases cohesive energy density of aged SMB while reducing free volume, which enhances stiffness of bitumen. Additionally, rigid groups in RDGE inhibit mobility of both itself and the repaired SBS, leading to a reduction in the ductility of aged SMB to 10.1 cm. Besides, SBS repaired with RDGE shows strongest binding with resins and aromatics, which diminishes lubricating effect of these components on asphaltenes. This reduction in lubrication enhances aggregation of asphaltenes, ultimately raising flow resistance.

Keyword :

Epoxy compounds Epoxy compounds Molecular dynamics simulation Molecular dynamics simulation Rejuvenated SBS modified bitumen Rejuvenated SBS modified bitumen Rejuvenation mechanism analysis Rejuvenation mechanism analysis

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GB/T 7714 Xu, Song , Niu, Xiangjie , Cai, Shaoxu et al. Investigation on active rejuvenation mechanism of aged SBS modified bitumen: Insights from experiments and molecular dynamics [J]. | POLYMER DEGRADATION AND STABILITY , 2025 , 238 .
MLA Xu, Song et al. "Investigation on active rejuvenation mechanism of aged SBS modified bitumen: Insights from experiments and molecular dynamics" . | POLYMER DEGRADATION AND STABILITY 238 (2025) .
APA Xu, Song , Niu, Xiangjie , Cai, Shaoxu , Xu, Bingtao , Fang, Lei , Cao, Zhilong et al. Investigation on active rejuvenation mechanism of aged SBS modified bitumen: Insights from experiments and molecular dynamics . | POLYMER DEGRADATION AND STABILITY , 2025 , 238 .
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Investigation on active rejuvenation mechanism of aged SBS modified bitumen: Insights from experiments and molecular dynamics EI
期刊论文 | 2025 , 238 | Polymer Degradation and Stability
Investigation on active rejuvenation mechanism of aged SBS modified bitumen: Insights from experiments and molecular dynamics Scopus
期刊论文 | 2025 , 238 | Polymer Degradation and Stability
Effect of Antioxidant/CA-LDHs on the Properties of SBS-Modified Bitumen SCIE
期刊论文 | 2024 , 36 (3) | JOURNAL OF MATERIALS IN CIVIL ENGINEERING
WoS CC Cited Count: 6
Abstract&Keyword Cite Version(2)

Abstract :

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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Effect of Antioxidant/CA-LDHs on the Properties of SBS-Modified Bitumen Scopus
期刊论文 | 2024 , 36 (3) | Journal of Materials in Civil Engineering
Effect of Antioxidant/CA-LDHs on the Properties of SBS-Modified Bitumen EI
期刊论文 | 2024 , 36 (3) | Journal of Materials in Civil Engineering
Evaluation of surface organic layered double hydroxides on the anti-ageing performance of asphalt SCIE
期刊论文 | 2024 , 413 | CONSTRUCTION AND BUILDING MATERIALS
WoS CC Cited Count: 10
Abstract&Keyword Cite Version(2)

Abstract :

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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Evaluation of surface organic layered double hydroxides on the anti-ageing performance of asphalt EI
期刊论文 | 2024 , 413 | Construction and Building Materials
Evaluation of surface organic layered double hydroxides on the anti-ageing performance of asphalt Scopus
期刊论文 | 2024 , 413 | Construction and Building Materials
Prediction and correlations estimation of seismic capacities of pier columns: Extended Gaussian process regression models SCIE
期刊论文 | 2024 , 109 | STRUCTURAL SAFETY
WoS CC Cited Count: 1
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Abstract :

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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Prediction and correlations estimation of seismic capacities of pier columns: Extended Gaussian process regression models EI
期刊论文 | 2024 , 109 | Structural Safety
Prediction and correlations estimation of seismic capacities of pier columns: Extended Gaussian process regression models Scopus
期刊论文 | 2024 , 109 | Structural Safety
Experimental study on interfacial bond-slip behavior of weathering steel and seawater sea-sand concrete in corrosive marine environments SCIE
期刊论文 | 2024 , 201 | THIN-WALLED STRUCTURES
WoS CC Cited Count: 5
Abstract&Keyword Cite Version(2)

Abstract :

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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Experimental study on interfacial bond-slip behavior of weathering steel and seawater sea-sand concrete in corrosive marine environments EI
期刊论文 | 2024 , 201 | Thin-Walled Structures
Experimental study on interfacial bond-slip behavior of weathering steel and seawater sea-sand concrete in corrosive marine environments Scopus
期刊论文 | 2024 , 201 | Thin-Walled Structures
Novel Sustainable Pavement Material: Recycling of Waste Shells as the Filler of Asphalt Mastic SCIE
期刊论文 | 2024 , 12 (35) , 13048-13061 | ACS SUSTAINABLE CHEMISTRY & ENGINEERING
WoS CC Cited Count: 1
Abstract&Keyword Cite Version(2)

Abstract :

High-quality limestone, as a nonrenewable resource, is decreasing with the maintenance and construction of asphalt pavements. Meanwhile, due to the growth of the shell farming industry, a great amount of waste shells is produced annually, which are mainly disposed in the manner of stacking, landfill, or discarding into the sea directly, leading to serious environmental pollution. This research used mussel, pectinid, oncomelania, and oyster as raw materials to prepare four shell fillers, aiming at substituting nonrenewable mineral resources and recycling the waste shells at the same time. The asphalt mastics were prepared by mixing the base and SBS-modified asphalt with four shell fillers under different filler-asphalt ratios, respectively, and the asphalt mastics with limestone were adopted as control groups. The physical and rheological properties of five asphalt mastics were evaluated, and the chemical composition and the microstructure of five fillers were measured to investigate the acting mechanism between the fillers and asphalt. Results indicate that shells have lower density, hydrophilicity coefficient, and higher specific surface area than limestone, exhibiting a better compatibility with the asphalt. For the properties, in both base and modified asphalt mastics, the mastics with pectinid and oyster shells exhibit the lowest penetration and phase angle, while their complex modulus and softening point are the highest among the five types of mastics, indicating the better antideformation ability. Moreover, with the increasing filler-asphalt ratio, the antideformation ability of the base asphalt mastic increases gradually, while the SBS-modified asphalt mastic exhibits a more complex behavior. In addition, analysis results of fillers demonstrate that the looser structure of shells is attributed to the interlaced layered structure of aragonite and calcite, leading to a larger contact area between the shell and asphalt. Besides, there is some organic matter present in the shell, which plays a role like organic modification, improving the compatibility between the shell and asphalt. The larger contact area and the presence of organic matter in the shell show a synergistic effect in improving the road performance of asphalt mastic. This work verifies the feasibility to replace the conventional mineral fillers with shell fillers, which is beneficial to recycle the waste shell and reduce the consumption of nonrenewable mineral resources.

Keyword :

antideformationability antideformationability asphalt mastic asphalt mastic layered structure layered structure organic matter organic matter shell fillers shell fillers

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GB/T 7714 Xu, Song , Cai, Shaoxu , Huang, Runyu et al. Novel Sustainable Pavement Material: Recycling of Waste Shells as the Filler of Asphalt Mastic [J]. | ACS SUSTAINABLE CHEMISTRY & ENGINEERING , 2024 , 12 (35) : 13048-13061 .
MLA Xu, Song et al. "Novel Sustainable Pavement Material: Recycling of Waste Shells as the Filler of Asphalt Mastic" . | ACS SUSTAINABLE CHEMISTRY & ENGINEERING 12 . 35 (2024) : 13048-13061 .
APA Xu, Song , Cai, Shaoxu , Huang, Runyu , Fu, Dabao , Fang, Lei , Zhang, Canlin et al. Novel Sustainable Pavement Material: Recycling of Waste Shells as the Filler of Asphalt Mastic . | ACS SUSTAINABLE CHEMISTRY & ENGINEERING , 2024 , 12 (35) , 13048-13061 .
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Novel Sustainable Pavement Material: Recycling of Waste Shells as the Filler of Asphalt Mastic Scopus
期刊论文 | 2024 , 12 (35) , 13048-13061 | ACS Sustainable Chemistry and Engineering
Novel Sustainable Pavement Material: Recycling of Waste Shells as the Filler of Asphalt Mastic EI
期刊论文 | 2024 , 12 (35) , 13048-13061 | ACS Sustainable Chemistry and Engineering
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