Cement and Concrete Research最新文献_第9页

A transfer learning-driven paradigm for understanding cryogenic freezing mechanisms in low water/binder cement-based composites 低水/粘合剂水泥基复合材料低温冻结机制的迁移学习驱动范式

IF 13.1 1区工程技术

Cement and Concrete Research Pub Date : 2026-01-01 Epub Date: 2025-08-29 DOI: 10.1016/j.cemconres.2025.108027

Yuan Feng , Lingyan Zhang , Dingqiang Fan , Kangning Liu , Rui Yu

{"title":"A transfer learning-driven paradigm for understanding cryogenic freezing mechanisms in low water/binder cement-based composites","authors":"Yuan Feng , Lingyan Zhang , Dingqiang Fan , Kangning Liu , Rui Yu","doi":"10.1016/j.cemconres.2025.108027","DOIUrl":"10.1016/j.cemconres.2025.108027","url":null,"abstract":"<div><div>Data scarcity and dispersion constrain the accurate assessment of cryogenic concrete performance and impede the investigation of its microstructural evolution. This study first developed a physics-informed transfer learning framework to predict low water/binder cement-based composites (LWCC) behavior across a wide temperature range and reveal coupled macro–micro freezing mechanisms. The results demonstrated that transfer learning, by integrating hydration and freezing features, effectively overcame data scarcity and enabled accurate prediction of LWCC low-temperature performance (R<sup>2</sup> > 0.90). The model exhibited self-adaptive capability, extending its applicable temperature range to be extended from the training range of 0 to −80°C down to −196°C. Based on the data-driven model, a freezing model was proposed, identifying strength gain, damage–densification balance, secondary strengthening, and interfacial debonding stages, with transitions influenced by w/b ratio and solid skeleton structure. This work achieves AI-driven precise prediction of cryogenic concrete, offering insights into material design and freezing mechanisms under extreme conditions.</div></div>","PeriodicalId":266,"journal":{"name":"Cement and Concrete Research","volume":"199 ","pages":"Article 108027"},"PeriodicalIF":13.1,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144913966","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Carbonation behavior of Portland cement incorporating polycarboxylate ether superplasticizer: Towards carbonation kinetics, microstructural evolution and mechanical properties 掺聚羧酸醚减水剂硅酸盐水泥的碳化行为：碳化动力学、微观结构演变和力学性能研究

IF 13.1 1区工程技术

Cement and Concrete Research Pub Date : 2026-01-01 Epub Date: 2025-10-10 DOI: 10.1016/j.cemconres.2025.108061

Jionghuang He , Guangcheng Long , Yi Jiang , Qinglong Qin , Cong Tang , Yong Tao , Peiliang Shen , Chi-Sun Poon

{"title":"Carbonation behavior of Portland cement incorporating polycarboxylate ether superplasticizer: Towards carbonation kinetics, microstructural evolution and mechanical properties","authors":"Jionghuang He , Guangcheng Long , Yi Jiang , Qinglong Qin , Cong Tang , Yong Tao , Peiliang Shen , Chi-Sun Poon","doi":"10.1016/j.cemconres.2025.108061","DOIUrl":"10.1016/j.cemconres.2025.108061","url":null,"abstract":"<div><div>Polycarboxylate ether (PCE) superplasticizers are crucial in modern concrete, yet their compatibility with carbonation curing, a promising CO<sub>2</sub> sequestration method, remains insufficiently understood. This study systematically examined carbonation behavior of Portland cement (PC) incorporating PCE by analyzing its phase assemblage, microstructure, carbonation heat, solution chemistry and mechanical properties. Results indicated that PCE significantly reduced the carbonation rate. The peak rate of carbonation heat in pure PC reached 0.57 W/g, while the addition of 2.0 % PCE reduced this value by 43.9 %. This reduction was attributed to the adsorption and complexation effects of PCE, the immobilization of CaCO<sub>3</sub> clusters within polymer network, as well as a rapid decrease in solution pH. Furthermore, the aggressive carbonation kinetics amplified the detrimental impact of PCE on microstructural development. This inhibited carbonation at particle boundaries and weakened interparticle bonding, thereby leading to a decline in mechanical performance. These findings offer fundamental insights into the compatibility and limitations of using PCE in combination with carbonation technologies in concrete.</div></div>","PeriodicalId":266,"journal":{"name":"Cement and Concrete Research","volume":"199 ","pages":"Article 108061"},"PeriodicalIF":13.1,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145260810","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Optimization of hydration kinetics, phase development and mechanical properties of CAC in mix with calcite by addition of sodium hydroxide and citric acid 氢氧化钠和柠檬酸对碳酸钙与方解石混合的水化动力学、相发育及力学性能的优化

IF 13.1 1区工程技术

Cement and Concrete Research Pub Date : 2026-01-01 Epub Date: 2025-09-20 DOI: 10.1016/j.cemconres.2025.108045

Pauline Rost , Christiane Rößler , Jürgen Neubauer , Friedlinde Goetz-Neunhoeffer

{"title":"Optimization of hydration kinetics, phase development and mechanical properties of CAC in mix with calcite by addition of sodium hydroxide and citric acid","authors":"Pauline Rost , Christiane Rößler , Jürgen Neubauer , Friedlinde Goetz-Neunhoeffer","doi":"10.1016/j.cemconres.2025.108045","DOIUrl":"10.1016/j.cemconres.2025.108045","url":null,"abstract":"<div><div>The influence of sodium hydroxide and citric acid on the hydration of a calcium aluminate cement – calcite mixture was investigated. Both the effect of the two additives individually and in combination were analysed. Sodium hydroxide accelerates the reaction, leads to dominant monocarbonate formation and higher inner strength. However, the workability is reduced. Citric acid retards the reaction, lowers the inner strength but has a positive influence on the workability. Furthermore, the main reaction with citric acid only begins when the concentration of citric acid in the pore solution drops below 125–115 mmol/l. In combination of both additives, NaOH improves the inner strength, whereas higher doses of citric acid improve the workability, whereby the dominant hydrate phase composition changes from monocarbonate to CAH<sub>10</sub>. In addition, it was observed that a higher degree of hydration within the first 24 h is associated with increased inner strength after 28 d.</div></div>","PeriodicalId":266,"journal":{"name":"Cement and Concrete Research","volume":"199 ","pages":"Article 108045"},"PeriodicalIF":13.1,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145089157","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Size effects of graphene oxide nanosheets on the mechanical property of cement pastes: Packing of C-S-H nanoparticles and mechanism 氧化石墨烯纳米片尺寸对水泥浆力学性能的影响：C-S-H纳米颗粒的填充及其机理

IF 13.1 1区工程技术

Cement and Concrete Research Pub Date : 2026-01-01 Epub Date: 2025-09-17 DOI: 10.1016/j.cemconres.2025.108044

Yu Zhang , Cheng Li , Shuangshuang Wang , Jing Zhong

{"title":"Size effects of graphene oxide nanosheets on the mechanical property of cement pastes: Packing of C-S-H nanoparticles and mechanism","authors":"Yu Zhang , Cheng Li , Shuangshuang Wang , Jing Zhong","doi":"10.1016/j.cemconres.2025.108044","DOIUrl":"10.1016/j.cemconres.2025.108044","url":null,"abstract":"<div><div>The size effects of nanomaterials play a critical role in their reinforcement efficiency for polymer and metal nanocomposites, yet it has not been thoroughly demonstrated in cementitious matrices. This study systematically investigates the size effects of graphene oxide (GO) on cement hydration, microstructure, strength, and creep resistance. Compared to small-sized GO, large-sized GO (LGO) significantly enhances C-S-H packing density, hydration degree, and mechanical performance while reducing creep. These improvements stem from LGO's stronger templating effect and larger lateral size, which promote C-S-H nucleation and interparticle bonding, thus limiting C-S-H redistribution under load. Importantly, we reveal that GO enhances creep resistance not only by densifying C-S-H but also by modulating interfacial bonding in a size-dependent manner—a mechanism previously overlooked. These findings underscore the critical role of nanomaterial size effects in regulating stress transfer and microstructural evolution in cementitious systems, offering a new pathway for designing high-performance cement-based materials.</div></div>","PeriodicalId":266,"journal":{"name":"Cement and Concrete Research","volume":"199 ","pages":"Article 108044"},"PeriodicalIF":13.1,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145078368","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Low-grade kaolinitic clays as SCMs for low-carbon cements and strength improvement by C-S-H gel nucleation seeding 低品位高岭石粘土作为低碳胶结剂和C-S-H凝胶成核播种提高强度的SCMs

IF 13.1 1区工程技术

Cement and Concrete Research Pub Date : 2026-01-01 Epub Date: 2025-09-24 DOI: 10.1016/j.cemconres.2025.108036

Diego Vallina , Isabel Santacruz , Alejandro Morales-Cantero , María Dolores Rodríguez-Ruiz , Ana Cuesta , Angeles G. De la Torre , Alessandro Dalla-Libera , Pere Borralleras , Sébastien Dhers , Peter Schwesig , Oliver Mazanec , Miguel A.G. Aranda

{"title":"Low-grade kaolinitic clays as SCMs for low-carbon cements and strength improvement by C-S-H gel nucleation seeding","authors":"Diego Vallina , Isabel Santacruz , Alejandro Morales-Cantero , María Dolores Rodríguez-Ruiz , Ana Cuesta , Angeles G. De la Torre , Alessandro Dalla-Libera , Pere Borralleras , Sébastien Dhers , Peter Schwesig , Oliver Mazanec , Miguel A.G. Aranda","doi":"10.1016/j.cemconres.2025.108036","DOIUrl":"10.1016/j.cemconres.2025.108036","url":null,"abstract":"<div><div>This study seeks to push the limits of LC<sup>3</sup>-50 binders by utilising low-grade kaolinite clays and C-S-H gel nucleation seeding. Four commercially-available kaolinite clays (i.e. kaolinite contents ~20 wt%) have been studied by X-ray fluorescence, X-ray powder diffraction and thermal analysis. The clays were thermally activated and milled to D<sub>v,50</sub> = 11 ± 2 μm. The activated clays showed low pozzolanic performances, as determined by ASTM C1897-20 standard. The heat flows ranged 200–230 J/g calcined clay and the bound waters 4.3–5.7 %. The LC<sup>3</sup>-50 pastes were characterised by calorimetry, X-ray powder diffraction and the Rietveld method, thermal analysis, and porosimetry to evaluate pozzolanic reactivity and the seeding effect.</div><div>LC<sup>3</sup> mortars, w/b = 0.40, have relatively low compressive strengths, especially at one day, but these values were increased by 64 % on average at one day by seeding. At 1 day, three LC<sup>3</sup> mortars showed 11 MPa which increased to 18–20 MPa by seeding. A fourth mortar showed a much higher compressive strength, 16 MPa, that increased to 23 MPa, by seeding. A tested concrete, w/b = 0.50, also showed a high increase of 37 % at 1 day. The improvements at 28 days were maintained but quantitatively lower, 12 and 14 % for the mortars and the concrete, respectively. Insights into the pozzolanic reactions and C-S-H seeding are obtained from the quantitative study of the pastes. For instance, it is proven the pozzolanic reaction at 1 day from the portlandite consumption. Also shown is the enhanced formation of carboaluminates when the strength enhancing admixture is added.</div></div>","PeriodicalId":266,"journal":{"name":"Cement and Concrete Research","volume":"199 ","pages":"Article 108036"},"PeriodicalIF":13.1,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145118032","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Effect of alumina on the carbonation reactivity of calcium aluminosilicate glasses 氧化铝对钙铝硅酸盐玻璃碳酸化反应性的影响

IF 13.1 1区工程技术

Cement and Concrete Research Pub Date : 2026-01-01 Epub Date: 2025-08-22 DOI: 10.1016/j.cemconres.2025.108023

Chen Li , Qiaomu Zheng , Bo Liu , Jiaqi Li , Weihao Zhu , Yuan Fang , Kaiming Peng , Zuhua Zhang , Zhengwu Jiang

{"title":"Effect of alumina on the carbonation reactivity of calcium aluminosilicate glasses","authors":"Chen Li , Qiaomu Zheng , Bo Liu , Jiaqi Li , Weihao Zhu , Yuan Fang , Kaiming Peng , Zuhua Zhang , Zhengwu Jiang","doi":"10.1016/j.cemconres.2025.108023","DOIUrl":"10.1016/j.cemconres.2025.108023","url":null,"abstract":"<div><div>Reactivity of silicate glasses, the main component of industrial byproducts such as blast furnace slag and yellow phosphorus slag, is highly linked with their chemical and nano-structural properties. To provide insights on the viability of such materials for use in CO<sub>2</sub> mineralization, this study highlights the role of Al<sub>2</sub>O<sub>3</sub> in the carbonation of synthetic CaO·Al<sub>2</sub>O<sub>3</sub>·SiO<sub>2</sub> glasses. The incorporation of Al<sub>2</sub>O<sub>3</sub> impedes the carbonation reaction by modifying the glass structure at multiple length scales. At the atomic scale, the formation of [AlO<sub>4</sub>]<sup>−</sup> removes the non-bridging oxygens which serve as sites for Ca<sup>2+</sup>/H<sup>+</sup> exchange, and disrupts the Ca<sup>2+</sup> channels by clustering with [SiO<sub>4</sub>] in the Q<sup>4</sup> state. At the nanoscale, phase-separated regions were observed particularly in high-Al glasses. During carbonation (when pH = 6), the Al species re-adsorbed on the surface of glass particles preferentially to Ca<sup>2+</sup>. This effect hinders the heterogeneous nucleation and thus the morphology of CaCO<sub>3</sub> precipitated on glass particles.</div></div>","PeriodicalId":266,"journal":{"name":"Cement and Concrete Research","volume":"199 ","pages":"Article 108023"},"PeriodicalIF":13.1,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144887311","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Impact of calcination time on metakaolin morphology and enhancement of pozzolanic reactivity: Insights from in situ TEM 煅烧时间对偏高岭土形态和火山灰反应性增强的影响：来自原位透射电镜的见解

IF 13.1 1区工程技术

Cement and Concrete Research Pub Date : 2026-01-01 Epub Date: 2025-08-25 DOI: 10.1016/j.cemconres.2025.108022

Tausif E Elahi , Pablo Romero , Nishant Garg

引用次数: 0

Phosphate-activated basic oxygen furnace (BOF) slag: Understanding pH-driven hydration and strength development 磷酸盐活化碱性氧炉（BOF）炉渣：了解ph驱动水化和强度发展

IF 13.1 1区工程技术

Cement and Concrete Research Pub Date : 2026-01-01 Epub Date: 2025-09-12 DOI: 10.1016/j.cemconres.2025.108034

Yanjie Tang , Katrin Schollbach , Zixing Liu , Sieger van der Laan , Wei Chen , H.J.H. Brouwers

{"title":"Phosphate-activated basic oxygen furnace (BOF) slag: Understanding pH-driven hydration and strength development","authors":"Yanjie Tang , Katrin Schollbach , Zixing Liu , Sieger van der Laan , Wei Chen , H.J.H. Brouwers","doi":"10.1016/j.cemconres.2025.108034","DOIUrl":"10.1016/j.cemconres.2025.108034","url":null,"abstract":"<div><div>This study investigates the hydration behavior of basic oxygen furnace (BOF) slag in phosphate solutions across different pH levels, focusing on hydration kinetics, microstructure, and strength development. Acidic phosphate solutions trigger rapid dissolution via acid-base reactions, resulting in lower heat release, while alkaline phosphates promote sustained dissolution-precipitation reactions, prolonging hydration and increasing cumulative heat. The buffering effect of H<sub>2</sub>PO<sub>4</sub><sup>−</sup>/HPO<sub>4</sub><sup>2−</sup> prolongs induction periods and inhibits hydrogarnet and layered double hydroxides (LDHs) formation. At early stages, C<sub>2</sub>S hydration is more pronounced in acidic solutions, whereas higher pH enhances late-stage hydration of C<sub>2</sub>S, brownmillerite, and wuestite, forming C-S-H, hydrogarnet, and LDHs. Despite similar porosities (11.9–13.9 %), strengths vary from 37.7 to 66.9 MPa due to a higher proportion of capillary pores and a larger average pore size at a low pH (pH at 4.2). The findings support using phosphate-rich wastewater to activate BOF slag, reducing phosphate discharge while developing low-carbon, cement-free binders.</div></div>","PeriodicalId":266,"journal":{"name":"Cement and Concrete Research","volume":"199 ","pages":"Article 108034"},"PeriodicalIF":13.1,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145043000","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

A review on geometry and surface inspection in 3D concrete printing 三维混凝土打印中几何和表面检测的研究进展

IF 13.1 1区工程技术

Cement and Concrete Research Pub Date : 2026-01-01 Epub Date: 2025-09-14 DOI: 10.1016/j.cemconres.2025.108030

Karam Mawas, Mehdi Maboudi, Markus Gerke

{"title":"A review on geometry and surface inspection in 3D concrete printing","authors":"Karam Mawas, Mehdi Maboudi, Markus Gerke","doi":"10.1016/j.cemconres.2025.108030","DOIUrl":"10.1016/j.cemconres.2025.108030","url":null,"abstract":"<div><div>Given the substantial growth in the use of additive manufacturing in construction (AMC), it is necessary to ensure the quality of printed specimens, which can be much more complex than conventionally manufactured parts. This study examines the various aspects of geometry and surface quality control in 3D concrete printing (3DCP), with a particular emphasis on deposition-based methods, specifically extrusion and shotcrete 3D printing (SC3DP). A comprehensive overview of existing quality control (QC) methods and strategies is provided and preceded by an in-depth discussion. Four categories of data capture technologies are investigated and their advantages and limitations in the context of AMC are discussed. Additionally, the effects of environmental conditions and the properties of objects on data capture are also analyzed. The study extends to automated data capture planning methods for different sensors. Furthermore, various quality control strategies are explored across different stages of the fabrication cycle of the printed object including: (i) During printing, (ii) Layer-wise, (iii) Pre-assembly, and (iv) Assembly. In addition to reviewing the methods already applied in AMC, we also address various research gaps and future trends and highlight potential methodologies from adjacent domains that could be transferred to AMC.</div></div>","PeriodicalId":266,"journal":{"name":"Cement and Concrete Research","volume":"199 ","pages":"Article 108030"},"PeriodicalIF":13.1,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145057199","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Sulfate adjustment and early reactivity in cements containing kaolinitic calcined clays: investigation and assessment via a sulfate-limited model system 硫酸盐调节和含高岭石煅烧粘土的水泥的早期反应性：通过硫酸盐限制模型系统的研究和评估

IF 13.1 1区工程技术

Cement and Concrete Research Pub Date : 2026-01-01 Epub Date: 2025-10-10 DOI: 10.1016/j.cemconres.2025.108060

Tafadzwa Ronald Muzenda , Yannick Demeusy , Fabien Georget , Christophe Labbez , Thomas Matschei

引用次数: 0