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学者姓名：崔素萍
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Abstract ：
This study proposes an effective machine learning-based prediction method to satisfy the urgent requirement to anticipate the mechanical properties of 3D-printed concrete. The goal is to support the accurate use of 3D printing technology in the building sector. We have successfully created machine learning models that can predict compressive strength and flexural strength by combining experimental data from a variety of 3D printed concrete samples and carefully preparing the data. Our study explores the fundamentals and practicality of several models, such as artificial neural networks, decision trees, random forests, support vector regression, and linear regression. We have made sure that our prediction findings are reliable and scientifically sound by implementing stringent model training and validation procedures. With a correlation coefficient between 0.96 and 0.98 with real values, experimental results demonstrate the random forest model's remarkable predicted accuracy, greatly beyond that of conventional prediction techniques. The practical use of 3D printed concrete in engineering projects is strengthened by this work, which also opens up new avenues for investigation and highlights the enormous potential of machine learning to improve the prediction of mechanical properties of building materials.
Keyword ：
Machine learning Machine learning Random forest model Random forest model Mechanical properties prediction Mechanical properties prediction 3D printing concrete 3D printing concrete Data preprocessing Data preprocessing
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| GB/T 7714 | Zhang, Yonghong , Cui, Suping , Yang, Bohao et al. Research on 3D printing concrete mechanical properties prediction model based on machine learning [J]. | CASE STUDIES IN CONSTRUCTION MATERIALS , 2025 , 22 . |
| MLA | Zhang, Yonghong et al. "Research on 3D printing concrete mechanical properties prediction model based on machine learning" . | CASE STUDIES IN CONSTRUCTION MATERIALS 22 (2025) . |
| APA | Zhang, Yonghong , Cui, Suping , Yang, Bohao , Wang, Xinxin , Liu, Tao . Research on 3D printing concrete mechanical properties prediction model based on machine learning . | CASE STUDIES IN CONSTRUCTION MATERIALS , 2025 , 22 . |
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Abstract ：
The uncontrollable duration of the induction period poses challenges in adapting concrete to varying construction environments and locations: too short hinders transportation and pouring, while too long reduces efficiency. In this study, the induction period duration is controlled by the sequential introduction of citric acid (CA) and sodium silicate (SS) into the cement paste. After introducing 1.0 wt% CA, the induction period of cement paste is prolonged to > 28 d due to C-S-H nucleation inhibited by CA complexing Ca2 +. SS promotes the precipitation of hydration products and these precipitates can adsorb the remaining CA in the pore solution, gradually eliminating the effect of CA. After introducing 6.0 wt% SS into the cement paste containing 1.0 wt% CA, the induction period is shortened to 7.9 h, resulting in mortar strengths of 7.6 MPa at 1 d and 49.8 MPa at 28 d. In this way, the cement paste can remain plastic for a long time and set and harden at any time according to the engineering requirements.
Keyword ：
Admixture combination Admixture combination Sodium silicate Sodium silicate Citric acid Citric acid Controlling the induction period Controlling the induction period
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| GB/T 7714 | Chen, Zhen , Sun, Dawei , Cui, Suping et al. Control of cement paste induction period by sequential introduction of citric acid and sodium silicate [J]. | CONSTRUCTION AND BUILDING MATERIALS , 2025 , 472 . |
| MLA | Chen, Zhen et al. "Control of cement paste induction period by sequential introduction of citric acid and sodium silicate" . | CONSTRUCTION AND BUILDING MATERIALS 472 (2025) . |
| APA | Chen, Zhen , Sun, Dawei , Cui, Suping , Ma, Wenxu , Liu, Hui . Control of cement paste induction period by sequential introduction of citric acid and sodium silicate . | CONSTRUCTION AND BUILDING MATERIALS , 2025 , 472 . |
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Abstract ：
The isocyanate system could directly react with water in the air to cure without adding curing agent, thus realizing self-healing, but it also limited its water resistance in humid environment. In this study, polydopamine was deposited on the surface of isocyanate microcapsules to improve their water resistance. Final microcapsules had a diameter of 322.1 +/- 69.8 mu m, a shell thickness of 6.5 +/- 0.3 mu m and a core content of 83.3 % +/- 2.4 wt%. The optimum synthesis parameters for polydopamine doposition was dopamine concentration of 8.0 mg/ml, agitation rate of 300 rpm, and reaction duration of 24 h. After being immersed in ambient water for 28 days, the redisual core material of final microcapsules still remained at 15.0 wt%. Besides, the final microcapsules started to decompose at 240.0 degrees C, indicating good thermal stability. The study also investigated the influence mechanism of microcapsules strength and interfacial strength on the mechanical properties of self-healing cement paste. At the same time, the total porosity of self-healing cement paste increased under higher microcapsule concentration. In addition, the self-healing cement paste could effectively repair cracks with width of about 100 mu m, showed good self-healing ability.
Keyword ：
Self-healing cement paste Self-healing cement paste Dopamine deposition Dopamine deposition Interfacial strength Interfacial strength Water resistance Water resistance Isocyanate microcapsules Isocyanate microcapsules
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| GB/T 7714 | Sun, Dawei , Li, Wenjuan , Wang, Jiaxin et al. Polydopamine-coated isocyanate microcapsules with enhanced water resistance for self-healing cement paste [J]. | CONSTRUCTION AND BUILDING MATERIALS , 2025 , 463 . |
| MLA | Sun, Dawei et al. "Polydopamine-coated isocyanate microcapsules with enhanced water resistance for self-healing cement paste" . | CONSTRUCTION AND BUILDING MATERIALS 463 (2025) . |
| APA | Sun, Dawei , Li, Wenjuan , Wang, Jiaxin , Li, Maoshuo , Ma, Wenxu , Chen, Zhen et al. Polydopamine-coated isocyanate microcapsules with enhanced water resistance for self-healing cement paste . | CONSTRUCTION AND BUILDING MATERIALS , 2025 , 463 . |
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Abstract ：
Cracks in cement-based materials are inevitable and compromise the durability of structures. Although unhydrated cement clinkers possess good self-healing capability, its service life is often unsatisfactory. In this study, cement powder was fabricated into dense cement particles using a wet granulation method, followed by encapsulation through the melt dispersion condensation method. The resulting capsules had cement particles as the core and glycerol tristearate-polyurea composites as the shell material. Final capsules exhibited good dispersibility and a clear core-shell structure. The average particle size was 900.5 +/- 83.1 mu m, with a core content of 56.6 wt%, and the compressive strength was approximately 7.6 MPa. The addition of capsules will affect the performance of the matrix. In self-healing mortars, about 80 % of the capsules broke within the cracks. Most importantly, the self-healing mortar after hydration for 28 days was able to completely heal cracks with widths below 100.0 mu m, along with fully restoring its impermeability.
Keyword ：
Cement particles Cement particles Capsule Capsule Self-healing Self-healing
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| GB/T 7714 | Sun, Dawei , Wang, Jiaxin , Li, Maoshuo et al. Encapsulation of cement particles for self-healing mortars [J]. | COMPOSITES PART B-ENGINEERING , 2025 , 297 . |
| MLA | Sun, Dawei et al. "Encapsulation of cement particles for self-healing mortars" . | COMPOSITES PART B-ENGINEERING 297 (2025) . |
| APA | Sun, Dawei , Wang, Jiaxin , Li, Maoshuo , Li, Wenjuan , Ma, Wenxu , Chen, Zhen et al. Encapsulation of cement particles for self-healing mortars . | COMPOSITES PART B-ENGINEERING , 2025 , 297 . |
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Abstract ：
End-of-Life (EoL) wind turbine blades (WTBs), which pose an environmental problem because of their short service life and lack of proven recycling options, are expected to expand significantly as the wind power industry grows rapidly. Potting's "R strategy" and this study's combined investigation of the recycling and integrated use of solid debris from recycled wind turbine blades (RWTBs) in 3D printed concrete offer a creative and costeffective way to address this pressing problem. The present priority for handling the waste from wind turbine blades are closely aligned with this approach. The study aims to investigate the feasibility of incorporating RWTB components into 3D printed concrete by utilizing the advantages of this innovative construction technique, which include rapid building, labor and material savings, and the capacity to make intricate structures. Since RWTBs have about double the SiO2 concentration of cement, it has been discovered that adding a suitable amount of SiO2 improves cement hydration and the mechanical qualities of 3D printed concrete. In this study, recycled glass fibers (chopped rGF) and GFRP powder were utilized as cementitious materials, aggregates, and fiber-reinforced components. The results show that GFRP powder, which is produced by mechanical recycling, can be mixed with up to 25 % of the mass of cementitious material without affecting its mechanical strength, printability, extrudability, or buildability. In a similar vein, chopped rGF, which is mechanically recycled, can be utilized as aggregate and reinforcing material up to 20 % of the total volume. Significant integration of RWTB solid waste is demonstrated by the co-doping of chopped rGF and GFRP powder, which can account for up to 20 % of the total mass. By offering a sustainable method for recycling RWTB components in building applications, this research helps to promote the circular economy by reducing the environmental impact of disposing of wind turbine blades.
Keyword ：
Circular economy Circular economy 3D printed concrete 3D printed concrete Recycled wind turbine blades Recycled wind turbine blades Cementitious materials Cementitious materials
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| GB/T 7714 | Zhang, Yonghong , Cui, Suping , Wang, Xinxin et al. Microstructure and performance of recycled wind turbine blade based 3D printed concrete [J]. | CLEANER WASTE SYSTEMS , 2025 , 10 . |
| MLA | Zhang, Yonghong et al. "Microstructure and performance of recycled wind turbine blade based 3D printed concrete" . | CLEANER WASTE SYSTEMS 10 (2025) . |
| APA | Zhang, Yonghong , Cui, Suping , Wang, Xinxin , Yang, Bohao , Zhang, Na , Liu, Tao . Microstructure and performance of recycled wind turbine blade based 3D printed concrete . | CLEANER WASTE SYSTEMS , 2025 , 10 . |
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Abstract ：
控制大气中的氮氧化物的排放对环境和健康有着至关重要的作用，应用于NO_(x)去除的技术有很多，其中选择性催化还原技术（NH_(3)-SCR）是去除NO_(x)最有效的技术之一，利用CO去除NO_(x)为烟气脱硝提供了一种简单且低成本的技术（CO-SCR），直接催化分解NO被认为是去除NO_(x)最理想、最环保的技术。Cu离子分子筛作为去除NO_(x)的高效催化剂，具有宽温度窗口和良好的水热稳定性。本文综述了Cu交换分子筛在去除NO领域的研究进展，讨论了Cu离子分子筛在NH_(3)-SCR、CO-SCR以及直接催化分解NO中的应用，着重总结了Cu离子参与去除NO的反应机理，归纳了分子筛中Cu活性位点对性能的影响。此外，还讨论了铜离子分子筛的抗H_(2)O和SO_(2)中毒性能。展望了Cu离子分子筛未来可能的发展方向。
Keyword ：
Cu离子分子筛 Cu离子分子筛 NH_(3)-SCR NH_(3)-SCR NO直接分解 NO直接分解 CO-SCR CO-SCR NO_(x)去除 NO_(x)去除
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| GB/T 7714 | 孟令钦 , 崔素萍 , 甘延玲 et al. Cu离子分子筛催化材料在去除NO_(x)方面应用的研究进展 [J]. | 材料导报 , 2024 , (02) : 1-18 . |
| MLA | 孟令钦 et al. "Cu离子分子筛催化材料在去除NO_(x)方面应用的研究进展" . | 材料导报 02 (2024) : 1-18 . |
| APA | 孟令钦 , 崔素萍 , 甘延玲 , 王亚丽 , 马晓宇 . Cu离子分子筛催化材料在去除NO_(x)方面应用的研究进展 . | 材料导报 , 2024 , (02) , 1-18 . |
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Abstract ：
This paper presents a method for efficiently removing nitrogen oxides produced during cement production by utilizing coal fly ash, a common substitute in cement raw materials. The surface acidity and reactive species content of coal fly ash were improved by acid-base modification to participate in the cement production process for efficient NOX removal. In this work, the activity of modified coal fly ash in the denitration reaction and the adsorption and reaction mechanism of NH3+NO+O-2 on its surface were explored. The research results show that the NO conversion of modified coal fly ash reaches more than 94% in the range of 800-1000 degree celsius. The modification process of base activation and acid precipitation promoted the formation of pores and the exposure of active components on the surface of the coal fly ash, increasing the number of acidic sites and oxygen vacancies. The DRIFTS results indicated that NH3 and NO were coadsorbed on the modified coal fly ash, formed active intermediates, and eventually decomposed into N-2, achieving the high efficiency of NOX removal. This study provides an efficient method to remove NOX from cement production using modified coal fly ash, which gives a new idea for low-carbon cement production.
Keyword ：
reaction mechanism reaction mechanism adsorption adsorption NOX removal NOX removal coal fly ash coal fly ash SNCR SNCR
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| GB/T 7714 | Meng, Lingqin , Cui, Suping , Wang, Yali et al. Modification to Enhance Surface Acidity and Reactive Species of Coal Fly Ash: A Study of Efficient NOX Removal [J]. | ACS SUSTAINABLE CHEMISTRY & ENGINEERING , 2024 , 12 (25) : 9351-9360 . |
| MLA | Meng, Lingqin et al. "Modification to Enhance Surface Acidity and Reactive Species of Coal Fly Ash: A Study of Efficient NOX Removal" . | ACS SUSTAINABLE CHEMISTRY & ENGINEERING 12 . 25 (2024) : 9351-9360 . |
| APA | Meng, Lingqin , Cui, Suping , Wang, Yali , Zhang, Duan , Ma, Xiaoyu . Modification to Enhance Surface Acidity and Reactive Species of Coal Fly Ash: A Study of Efficient NOX Removal . | ACS SUSTAINABLE CHEMISTRY & ENGINEERING , 2024 , 12 (25) , 9351-9360 . |
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Abstract ：
Natural hydraulic lime (NHL) is used as a grouting material in the restoration of ancient buildings, the formation and evolution of its early workability are crucial for the reliability of the restoration effects. This paper conducts an in-depth study on the effects of water to binder (w/b) ratio and polycarboxylate superplasticizer (SP) dosage on the viscoelastic properties of fluid-solid transition process in NHL paste through tests on the fluidity, rheological characteristics, micro-rheology, hydration heat release, and early phase composition. The results show that the fluidity of NHL paste significantly increases with increasing w/b ratio and SP dosage, while its yield stress and plastic viscosity show downward trend, and it has shear thinning characteristics. In the initial stage, elevated w/b ratio leads to the significant reduction in both macroscopic viscosity index (MVI) and elastic index (EI) of NHL paste, along with delayed rapid increases, the effect is even more pronounced by adding SP. High w/ b ratio or adding SP are able to enhance the dispersed state of solid particle in NHL pastes, the viscoelastic transition point of NHL paste is delayed and the viscoelastic transition time is prolonged. Increasing the w/b ratio and adding SP both inhibit the early dissolution and hydration of NHL paste, affecting the fluid-solid transition process. Overall, as the spatial network gradually develops by the solid particles dissolve and continue to hydrate, NHL paste undergoes a transition from a viscous fluid to an elastic semi-fluid state, exhibiting low strength and noticeable plasticity characteristics. With further hydration, NHL paste initiates consolidation and hardening processes, progressively transforming from a plastic semi-fluid into hardened paste.
Keyword ：
Water to binder ratio Water to binder ratio Natural hydraulic lime Natural hydraulic lime Polycarboxylate superplasticizer Polycarboxylate superplasticizer Fluid-solid transition Fluid-solid transition Viscoelastic properties Viscoelastic properties
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| GB/T 7714 | Zhang, Dajiang , Xu, Dong , Wang, Yali et al. Study on the fluid-solid transition mechanism of natural hydraulic lime pastes: Consider the water to binder ratio and polycarboxylate superplasticizer [J]. | CONSTRUCTION AND BUILDING MATERIALS , 2024 , 453 . |
| MLA | Zhang, Dajiang et al. "Study on the fluid-solid transition mechanism of natural hydraulic lime pastes: Consider the water to binder ratio and polycarboxylate superplasticizer" . | CONSTRUCTION AND BUILDING MATERIALS 453 (2024) . |
| APA | Zhang, Dajiang , Xu, Dong , Wang, Yali , Cui, Suping , Wang, Dongmin . Study on the fluid-solid transition mechanism of natural hydraulic lime pastes: Consider the water to binder ratio and polycarboxylate superplasticizer . | CONSTRUCTION AND BUILDING MATERIALS , 2024 , 453 . |
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Abstract ：
To solve the problem of low cementitious activity of steel slag (SS), N, N-bis(2-hydroxyethyl)-2-aminoethanesulfonic acid sodium salt (BES-Na) and triethanolamine (TEA) were used in this study to improve the hydration activity of SS. However, there are no comparative studies on the effects of BES-Na and TEA on the hydration of SS-Portland cement (PC) systems. This study compared the hydration process and strength development of SS-PC systems in the presence of BES-Na and TEA, as well as the complexing ability of BES-Na and TEA. The results showed that both BES-Na and TEA improved the early compressive strength of SS-PC mortar, but TEA did not contribute to the late compressive strength, while BES-Na still improved the late compressive strength. At the same dosage, TEA accelerated aluminates hydration more than BES-Na and retarded/inhibited silicates hydration more than BES-Na. This difference in effect on hydration can be attributed to the difference in their complexing ability. TEA has a stronger complexing ability with metal ions than BES-Na, which is beneficial for accelerating aluminates hydration, but this not only prolonged the hydration induction period but also inhibited silicates hydration. BES-Na has a weaker complexing ability relative to TEA. Although BES-Na has a weaker accelerating effect on aluminates hydration, it has a lesser effect on silicates hydration and even accelerates silicates hydration at low dosage. This study also showed that BES-Na is an alternative additive to TEA, which could help expand the application of BES-Na in cementitious materials.
Keyword ：
BES-Na BES-Na Steel slag Steel slag Complexation Complexation TEA TEA Compressive strength Compressive strength Hydration Hydration
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| GB/T 7714 | Chang, Lei , Cui, Suping , Liu, Hui et al. Effect of N, N-bis(2-hydroxyethyl)-2-aminoethanesulfonic acid sodium salt and triethanolamine on the hydration and compressive strength of steel slag-cement composite systems: A comparative study [J]. | JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T , 2024 , 33 : 6744-6755 . |
| MLA | Chang, Lei et al. "Effect of N, N-bis(2-hydroxyethyl)-2-aminoethanesulfonic acid sodium salt and triethanolamine on the hydration and compressive strength of steel slag-cement composite systems: A comparative study" . | JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T 33 (2024) : 6744-6755 . |
| APA | Chang, Lei , Cui, Suping , Liu, Hui , Wang, Jianfeng , Wang, Yali . Effect of N, N-bis(2-hydroxyethyl)-2-aminoethanesulfonic acid sodium salt and triethanolamine on the hydration and compressive strength of steel slag-cement composite systems: A comparative study . | JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T , 2024 , 33 , 6744-6755 . |
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Abstract ：
Calcium silicate hydrate (CSH) gel is an important hydration product of cement, significantly influencing the coagulation and hardening processes, as well as the mechanical properties, volume stability, and durability of cement. Moreover, it plays a crucial role in the adsorption of harmful ions. In this study, CSH gel was synthesized through the precipitation of calcium acetate and sodium silicate and was subsequently used to adsorb chloride ions. The results indicated that when the calcium-to-silicon ratio was 1.2, the CSH gel exhibited excellent adsorption performance for chloride ions introduced via CaCl2 and NaCl, with adsorption capacities of 17.45 mgg-1 and 8.06 mgg-1, respectively. The adsorption of chloride ions in CSH gel primarily occurs due to the physical adsorption of chloride ions on the surface and within the internal pores of the CSH gel, accompanied by a displacement reaction between hydroxide ion and chloride ions.
Keyword ：
adsorption properties adsorption properties chloride ions chloride ions calcium silicate hydrate gel calcium silicate hydrate gel adsorption mechanism adsorption mechanism
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| GB/T 7714 | Liu, Shijie , Cui, Suping , Guo, Hongxia et al. Study on the Factors Influencing the Adsorption Mechanism of CSH Gel for Chloride Ions [J]. | MATERIALS , 2024 , 17 (22) . |
| MLA | Liu, Shijie et al. "Study on the Factors Influencing the Adsorption Mechanism of CSH Gel for Chloride Ions" . | MATERIALS 17 . 22 (2024) . |
| APA | Liu, Shijie , Cui, Suping , Guo, Hongxia , Wang, Yali , Zheng, Yan . Study on the Factors Influencing the Adsorption Mechanism of CSH Gel for Chloride Ions . | MATERIALS , 2024 , 17 (22) . |
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