Case Studies in Construction Materials最新文献

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The pavement performance of concrete prepared with molybdenum tailings 钼尾矿配制混凝土的路用性能
IF 6.5 2区 工程技术
Case Studies in Construction Materials Pub Date : 2025-07-06 DOI: 10.1016/j.cscm.2025.e05019
Dongliang Kuang , Heng Meng , Bo Liu , Jincheng Yu , Tao Wang , Huaxin Chen
{"title":"The pavement performance of concrete prepared with molybdenum tailings","authors":"Dongliang Kuang ,&nbsp;Heng Meng ,&nbsp;Bo Liu ,&nbsp;Jincheng Yu ,&nbsp;Tao Wang ,&nbsp;Huaxin Chen","doi":"10.1016/j.cscm.2025.e05019","DOIUrl":"10.1016/j.cscm.2025.e05019","url":null,"abstract":"<div><div>Molybdenum tailings (MT) are solid wastes discharged from molybdenum mines after mining and sorting. At present, accumulation is still the primary treatment method of MT, which causes great harm to the environment. If MT can be used to prepare cement concrete pavement for low-grade roads, its utilization rate could be significantly improved. In this paper, various MT contents were substituted for natural sand to prepare pavement concrete. The influence of MT content on concrete pavement performance was studied using working performance, mechanical property, dry shrinkage property, wear resistance test, impermeability test, and microstructure characterization of concrete. The results showed that with increasing MT content in pavement concrete, the fluidity decreased and the dry shrinkage rate increased gradually. An appropriate dosage of MT in pavement concrete could improve its flexural strength, compressive strength, wear resistance and impermeability, which could be attributed to the promotion of cement hydration, improvement of pore structure and increase of concrete density. When the content of MT is 25 %, the flexural strength and compressive strength of concrete at 28 d reached the highest values of 5.92 MPa and 46.3 MPa, respectively, with the relative permeability coefficient of 1.64 × 10<sup>−9</sup> mm/s and the wear loss of only 1.80 kg/m<sup>2</sup>. Considering the pavement performance of concrete and the utilization rate of MT, in theory, 100 % MT concrete may be used for the construction of low-elevation high-altitude pavements. Low-grade roads, characterized by comparatively low performance requirements for cement concrete, provide an opportunity to enhance the utilization rate of MT.</div></div>","PeriodicalId":9641,"journal":{"name":"Case Studies in Construction Materials","volume":"23 ","pages":"Article e05019"},"PeriodicalIF":6.5,"publicationDate":"2025-07-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144572957","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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
Influence of calcareous sand powder and water environment on macro- and micro-properties of ferroaluminate cement 石灰砂粉和水环境对铝酸铁水泥宏微观性能的影响
IF 6.5 2区 工程技术
Case Studies in Construction Materials Pub Date : 2025-07-05 DOI: 10.1016/j.cscm.2025.e05016
Liang Cao , Peng Cao , Ziyu Wang , Minghao Gu , Feiting Shi , Jianru Wang
{"title":"Influence of calcareous sand powder and water environment on macro- and micro-properties of ferroaluminate cement","authors":"Liang Cao ,&nbsp;Peng Cao ,&nbsp;Ziyu Wang ,&nbsp;Minghao Gu ,&nbsp;Feiting Shi ,&nbsp;Jianru Wang","doi":"10.1016/j.cscm.2025.e05016","DOIUrl":"10.1016/j.cscm.2025.e05016","url":null,"abstract":"<div><div>The deterioration of engineering structural performance caused by seawater erosion, along with the scarcity of conventional construction materials, are significant challenges in contemporary island construction. Therefore, this study investigates the macro- and micro-properties of ferroaluminate cement mixed with calcareous sand powder (FAC-CSP) in three distinct water environments (FF: Freshwater mixing and immersion, FS: Freshwater mixing and seawater immersion, and SS: Seawater mixing and immersion) and elucidates the synergistic mechanism among the components. The results demonstrate that CSP alters the electrochemical properties of specimens in both FS and SS environments, while it does not significantly affect specimens in the FF environment. Additionally, CSP notably increases the resistivity of specimens at the later stages of hydration. Although CSP leads to a reduction in the mechanical properties of the specimens, it contributes to strength enhancement during the later stages of hydration. Seawater immersion significantly improves the strength of the specimens, compensating for the strength loss induced by CSP. Specimens in FS and SS environments exhibit higher ettringite content, and the presence of CSP promotes more complete hydration of FAC. Seawater immersion significantly increases the bound water content in the specimens. The adsorption of CSP particles and the ionic contribution of seawater stimulate the formation of additional hydration products around the CSP particles. This process fills the gap between the CSP particles and the specimen matrix with hydration products. These findings offer micro-scale insights into the roles of CSP and seawater in FAC hydration.</div></div>","PeriodicalId":9641,"journal":{"name":"Case Studies in Construction Materials","volume":"23 ","pages":"Article e05016"},"PeriodicalIF":6.5,"publicationDate":"2025-07-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144572893","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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
Evaluation of the dynamic modulus and fatigue cracking properties of polyethylene /aramid fiber asphalt mixture based on the S-VECD theory 基于s - veecd理论的聚乙烯/芳纶纤维沥青混合料动态模量及疲劳开裂性能评价
IF 6.5 2区 工程技术
Case Studies in Construction Materials Pub Date : 2025-07-05 DOI: 10.1016/j.cscm.2025.e05018
Haichuan Jia , Xin Gao , Yuxin Zhang , Lei "Gabriel" Xue , Yanping Sheng , Peng Hu
{"title":"Evaluation of the dynamic modulus and fatigue cracking properties of polyethylene /aramid fiber asphalt mixture based on the S-VECD theory","authors":"Haichuan Jia ,&nbsp;Xin Gao ,&nbsp;Yuxin Zhang ,&nbsp;Lei \"Gabriel\" Xue ,&nbsp;Yanping Sheng ,&nbsp;Peng Hu","doi":"10.1016/j.cscm.2025.e05018","DOIUrl":"10.1016/j.cscm.2025.e05018","url":null,"abstract":"<div><div>Fatigue cracking is a primary distress in asphalt pavements, and the fatigue cracking performance can be enhanced through the addition of aramid fiber. In this study, the viscoelasticity of a polyethylene/aramid fiber asphalt mixture (PAAM) was investigated using the simplified viscoelastic continuous damage (S-VECD) theory, and the fatigue damage evolution of PAAM was analyzed. The FlexPAVE™ program was employed to evaluate the fatigue performance of fiber-reinforced asphalt pavement. The results indicated that the increase in air voids led to a decrease in the viscoelasticity and fatigue cracking resistance of PAAM. Compared with other mixing methods, the viscoelasticity and cracking resistance of PAAM with three-layer coarse aggregate dispersion method (TLC) were significantly improved. An increase in fiber content led to a gradual deterioration in fatigue performance of PAAM. In addition, the aging modulus ratio (AMR) increased with increasing temperature, and the impact of aging on the viscoelasticity of PAAM was more significant at high temperature. The results of the FlexPAVE™ program showed that the cracking percentage of fiber-reinforced asphalt pavement with TLC method was reduced by 44 % compared with the TRA method. In addition, compared with the non-fiber asphalt pavement, the cracking depth of fiber-reinforced asphalt pavement was reduced by 65 %, 81 %, 91 %, and 76 % after aging periods of 1, 2, 4, and 7 days, respectively. This study provides a theoretical basis for improving the application of aramid fibers in asphalt pavement using the S-VECD theory.</div></div>","PeriodicalId":9641,"journal":{"name":"Case Studies in Construction Materials","volume":"23 ","pages":"Article e05018"},"PeriodicalIF":6.5,"publicationDate":"2025-07-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144572894","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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
Volumetric and mechanical properties of bituminous concrete mixes with the addition of polyethylene terephthalate 掺有聚对苯二甲酸乙二醇酯的沥青混凝土的体积和力学性能
IF 6.5 2区 工程技术
Case Studies in Construction Materials Pub Date : 2025-07-04 DOI: 10.1016/j.cscm.2025.e05013
Mukesh Saini , Praveen Aggarwal , Sameer Algburi , Abdullah Faiz Al Asmari , Parveen Berwal
{"title":"Volumetric and mechanical properties of bituminous concrete mixes with the addition of polyethylene terephthalate","authors":"Mukesh Saini ,&nbsp;Praveen Aggarwal ,&nbsp;Sameer Algburi ,&nbsp;Abdullah Faiz Al Asmari ,&nbsp;Parveen Berwal","doi":"10.1016/j.cscm.2025.e05013","DOIUrl":"10.1016/j.cscm.2025.e05013","url":null,"abstract":"<div><div>Waste plastics, littered both by domestic and industrial sectors, have been identified as a potential source of raw material for flexible pavements. Hence, understanding the behavior of bituminous mixes incorporating plastic is crucial for effective pavement design. There is limited information about the properties of modified mixes containing waste plastic bottles made of polyethylene terephthalate (PET). In this study, the effects of PET on the volumetric and mechanical properties of bituminous concrete mixes were analyzed. Using a dry process, these characteristics were examined with different proportions of PET (ranging from 0 % to 14 % by weight of bitumen, in 2 % increments). The results demonstrate that the mechanical and volumetric properties of the bituminous mixes improved significantly, with the optimum PET content found to be 8 %. Incorporating PET into bituminous mixes is not only a sustainable and economical way to manage plastic waste, but it also enhances the performance of bituminous materials.</div></div>","PeriodicalId":9641,"journal":{"name":"Case Studies in Construction Materials","volume":"23 ","pages":"Article e05013"},"PeriodicalIF":6.5,"publicationDate":"2025-07-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144563820","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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
Fatigue behavior and impedance spectrum characteristics of Cr-modified stainless-steel rebars after corrosion cr改性不锈钢钢筋腐蚀后疲劳行为及阻抗谱特征
IF 6.5 2区 工程技术
Case Studies in Construction Materials Pub Date : 2025-07-03 DOI: 10.1016/j.cscm.2025.e04964
Chuntao Zhang , Weishao Chen , Hongjie Zhu , Renbin An
{"title":"Fatigue behavior and impedance spectrum characteristics of Cr-modified stainless-steel rebars after corrosion","authors":"Chuntao Zhang ,&nbsp;Weishao Chen ,&nbsp;Hongjie Zhu ,&nbsp;Renbin An","doi":"10.1016/j.cscm.2025.e04964","DOIUrl":"10.1016/j.cscm.2025.e04964","url":null,"abstract":"<div><div>Corrosion and fatigue damage of rebars are the main factors affecting the durability of reinforced concrete structures. The metallurgical industry has attempted to improve the corrosion and fatigue resistance of rebars by adding or increasing the proportion of Cr in rebars. In this study, an accelerated corrosion test of a new Cr-modified stainless-steel rebar was conducted in a laboratory, and the impedance spectrum and fatigue behavior of the corroded specimens were tested. SEM and 3D scanning were employed to analyze the corrosion products and fracture morphology. Over a 40-day corrosion period, both corrosion-product formation and corrosion rate change only marginally, and a passivation film forms on the surface, enhancing the stainless-steel rebar’s corrosion resistance. The variations in the voltage within the impedance spectrum, alterations in the capacitance radius in the Nyquist diagram, and changes in the |Z| and phase angles in the Bode diagram indicate that the main chemical mechanisms in the corrosion process are the electron loss of iron and the combination of acid and base ions. The change in the <em>P-S-N</em> curve and analysis of the microfracture fatigue source, crack propagation zone, and transient fracture zone shows that the stainless-steel rebar still has good resistance to fatigue damage after corrosion damage. In addition, the accuracy and feasibility of <em>a</em> formula derived from the integration of Weibull's probability distribution model with Paris' law were validated through computational analysis. By comparing the experimental data with the calculated values of the model, the error is less than 10 %. It can be shown that properly increasing the content of Cr in stainless-steel reinforcement has <em>a</em> positive promotion for improving the corrosion resistance and fatigue resistance of stainless-steel rebars. This study provides <em>a</em> theoretical reference for improving the corrosion resistance and fatigue behavior of stainless-steel rebars after corrosion in the metallurgical field.</div></div>","PeriodicalId":9641,"journal":{"name":"Case Studies in Construction Materials","volume":"23 ","pages":"Article e04964"},"PeriodicalIF":6.5,"publicationDate":"2025-07-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144572956","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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
Noscale insights on structure and properties of C-(A)-S-H gel in cementitious materials under sulfate attack 硫酸盐侵蚀下胶凝材料中C-(A)- s - h凝胶结构和性能的初步研究
IF 6.5 2区 工程技术
Case Studies in Construction Materials Pub Date : 2025-07-03 DOI: 10.1016/j.cscm.2025.e04981
Gaozhan Zhang , Jiahao Zhu , Jun Yang , Qingjun Ding , Dongshuai Hou , Fangxin Tu , Youbing Tu , Lige Qiao
{"title":"Noscale insights on structure and properties of C-(A)-S-H gel in cementitious materials under sulfate attack","authors":"Gaozhan Zhang ,&nbsp;Jiahao Zhu ,&nbsp;Jun Yang ,&nbsp;Qingjun Ding ,&nbsp;Dongshuai Hou ,&nbsp;Fangxin Tu ,&nbsp;Youbing Tu ,&nbsp;Lige Qiao","doi":"10.1016/j.cscm.2025.e04981","DOIUrl":"10.1016/j.cscm.2025.e04981","url":null,"abstract":"<div><div>Sulfate attack poses a significant durability challenge to cementitious materials by degrading microporous hydration products. This study investigates the impact of sulfate attack on the structure and properties of C-(A)-S-H gels with varying Ca/Si and Al/Si ratios. The findings reveal that the susceptibility of C-A-S-H(Calcium Alumino-Silicate Hydrate) gels to sulfate attack is highly dependent on their chemical composition. Key observations include the formation of gypsum and ettringite crystals, with their quantities increasing with higher Ca/Si and Al/Si ratios. Our research demonstrates that sulfate attack induces decalcification and dealumination in C-A-S-H structures, leading to substantial changes in aluminosilicate chain morphology. Importantly, we identified that C-A-S-H crystals exhibit optimal sulfate resistance at an Al/Si ratio of 0.1. This study also elucidates the transformation of aluminum coordination states within the C-A-S-H gel under sulfate attack and highlights the role of Al/Si ratios in promoting specific structural changes that enhance sulfate resistance. These insights can provide guidance for developing more durable concrete formulations, particularly for applications in sulfate-rich environments.</div></div>","PeriodicalId":9641,"journal":{"name":"Case Studies in Construction Materials","volume":"23 ","pages":"Article e04981"},"PeriodicalIF":6.5,"publicationDate":"2025-07-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144563817","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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 water film and paste film thicknesses on printability of 3D printed low cement UHPC 水膜和膏膜厚度对3D打印低水泥超高性能混凝土可打印性的影响
IF 6.5 2区 工程技术
Case Studies in Construction Materials Pub Date : 2025-07-03 DOI: 10.1016/j.cscm.2025.e05008
Ye Shi , Ge You , Pengtao Wu , Zhongxian Liu , Chengqing Wu
{"title":"Effect of water film and paste film thicknesses on printability of 3D printed low cement UHPC","authors":"Ye Shi ,&nbsp;Ge You ,&nbsp;Pengtao Wu ,&nbsp;Zhongxian Liu ,&nbsp;Chengqing Wu","doi":"10.1016/j.cscm.2025.e05008","DOIUrl":"10.1016/j.cscm.2025.e05008","url":null,"abstract":"<div><div>To address the limitations of 3D printed concrete, such as low ductility and susceptibility to cracking, the development of 3D printed low cement ultra-high performance concrete (3DP-LC-UHPC) represents an effective approach. However, the complex and variable composition of this material makes it challenging to elucidate the relationship between composition and printability, which in turn constrains material design. In this study, the film thickness theory will be employed to establish the relationship between composition, structure, and printability of 3DP-LC-UHPC, utilizing water film thickness and paste film thickness as structural parameters. Correlations of the rheological properties to the water film thicknesses yielded R<sup>2</sup> values of at least 0.9. The combined effect of water film thickness (WFT) and paste film thickness (PFT) on the printability (extrudability and buildability) of the material is significant, with a correlation coefficient of 0.85 between them. The feasibility of film thickness theory applied to optimize the printability of 3DP-LC-UHPC is verified and suitable ranges of WFT and PFT are recommended.</div></div>","PeriodicalId":9641,"journal":{"name":"Case Studies in Construction Materials","volume":"23 ","pages":"Article e05008"},"PeriodicalIF":6.5,"publicationDate":"2025-07-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144572892","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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
Failure mechanisms of coral aggregate concrete under compression-shear loading: Experimental investigation and mesoscale simulation 珊瑚骨料混凝土在压剪荷载作用下的破坏机制:实验研究与中尺度模拟
IF 6.5 2区 工程技术
Case Studies in Construction Materials Pub Date : 2025-07-01 DOI: 10.1016/j.cscm.2025.e04986
Dongpeng Ma, Xiaona Huang, Zhongyu Lu
{"title":"Failure mechanisms of coral aggregate concrete under compression-shear loading: Experimental investigation and mesoscale simulation","authors":"Dongpeng Ma,&nbsp;Xiaona Huang,&nbsp;Zhongyu Lu","doi":"10.1016/j.cscm.2025.e04986","DOIUrl":"10.1016/j.cscm.2025.e04986","url":null,"abstract":"<div><div>Coral aggregate concrete (CAC) is a vital material for island and reef construction, where structures are frequently subjected to compressive-shear loading. Understanding the failure mechanisms of CAC under such conditions is of urgent importance. This study systematically investigated the effects of different indenter angles on the mechanical properties and failure mechanisms of CAC through combined experimental and mesoscale simulation approaches. The experimental results demonstrate that under a constant loading rate of 1 mm/min, the peak normal stress remained relatively stable (44.3–47.0 MPa) within the 0°-15° range. However, when the angle increased to 25°, the peak stress dropped sharply by 28.8 % (to 31.9 MPa), accompanied by a transition from compressive failure to shear failure along with the formation of shear bands and aggregate fracture. The nonlinear variation was accurately characterized by the stress invariant failure criterion, yielding a correlation coefficient of 0.997. Furthermore, the efficiencies of both collision detection algorithms, which are essential for generating mesoscale models, are compared. Mesoscale simulations reveal that at 5° indenter angle, damage initiated as compressive failure in the interfacial transition zone (ITZ), whereas at 25°, shear strain led to ITZ element failure, resulting in oblique crack propagation through aggregates and consequent abrupt loss of load-bearing capacity. The close agreement between simulation results and experimental data validated the reliability of the model.</div></div>","PeriodicalId":9641,"journal":{"name":"Case Studies in Construction Materials","volume":"23 ","pages":"Article e04986"},"PeriodicalIF":6.5,"publicationDate":"2025-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144523797","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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
Quantitative evaluation and traceability analysis of concrete apparent shade and apparent uniformity 混凝土表观色度、表观均匀性的定量评价与溯源分析
IF 6.5 2区 工程技术
Case Studies in Construction Materials Pub Date : 2025-07-01 DOI: 10.1016/j.cscm.2025.e05006
Jue Lu , Faguang Leng , Jingliang Xia , Jing Wang , Longfang Ren
{"title":"Quantitative evaluation and traceability analysis of concrete apparent shade and apparent uniformity","authors":"Jue Lu ,&nbsp;Faguang Leng ,&nbsp;Jingliang Xia ,&nbsp;Jing Wang ,&nbsp;Longfang Ren","doi":"10.1016/j.cscm.2025.e05006","DOIUrl":"10.1016/j.cscm.2025.e05006","url":null,"abstract":"<div><div>Appearance quality serves as a comprehensive indicator of material homogeneity and construction quality. However, research on appearance quality traceability remains limited, especially regarding the influence of controllable factors during production. To address this gap, concrete was prepared using different mix proportions, formwork types, and release agents, with appearance images collected at specified curing ages. The average grayscale (<span><math><mi>Ave</mi></math></span>) and the coefficient of variation of grayscale (<span><math><mi>Cv</mi></math></span>) were employed as quantitative indicators for apparent shade and uniformity, respectively, using digital image processing techniques. Then, statistical analysis revealed that formwork type, release agent and curing age together explained the variation in apparent shade. Among these factors, only formwork was used to explain the change in apparent uniformity. Finally, through validity test, internal test, external test and residual analysis, the stability and prediction range of the models were confirmed. This method can be used for rapid batch screening, like initial inspection on construction sites.</div></div>","PeriodicalId":9641,"journal":{"name":"Case Studies in Construction Materials","volume":"23 ","pages":"Article e05006"},"PeriodicalIF":6.5,"publicationDate":"2025-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144534239","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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
Experimental study and prediction of abrasion resistance of hydraulic concrete 水工混凝土耐磨性试验研究与预测
IF 6.5 2区 工程技术
Case Studies in Construction Materials Pub Date : 2025-07-01 DOI: 10.1016/j.cscm.2025.e05004
Qian Chen , Weizhun Jin , Xiaodan Tang , Hongxing Zhong , Qinghua Huang , Zhipeng Bai , Hongqiang Chu , Linhua Jiang
{"title":"Experimental study and prediction of abrasion resistance of hydraulic concrete","authors":"Qian Chen ,&nbsp;Weizhun Jin ,&nbsp;Xiaodan Tang ,&nbsp;Hongxing Zhong ,&nbsp;Qinghua Huang ,&nbsp;Zhipeng Bai ,&nbsp;Hongqiang Chu ,&nbsp;Linhua Jiang","doi":"10.1016/j.cscm.2025.e05004","DOIUrl":"10.1016/j.cscm.2025.e05004","url":null,"abstract":"<div><div>To predict the abrasion resistance of hydraulic concrete efficiently and accurately, this study analyzes the physical abrasion process of hydraulic concrete based on the underwater steel ball method. Additionally, building upon the principle of energy conservation, an energy equation relating fracture energy and abrasion strength of hydraulic concrete is established. The predictive fidelity of the energy equation is verified by analyzing the experimental results with different water-binder ratios (0.35, 0.4, and 0.45) and various fly ash contents (0 %, 15 %, and 20 %). The results show that with the increase of water-binder ratio, the abrasion strength of concrete first increases and then decreases. Adding 15 % fly ash can significantly improve the abrasion resistance of concrete, but the abrasion resistance will drop sharply when the dosage increases to 20 %. The fracture energy and abrasion strength of hydraulic concrete satisfy the energy equation regardless of the change of water-binder ratio or fly ash content. Subsequently, a wider range of different concrete mixtures can be used to evaluate the relationship between abrasion strength and fracture energy more scientifically and accurately, which provides theoretical guidance for predicting the abrasion strength of concrete in practical projects.</div></div>","PeriodicalId":9641,"journal":{"name":"Case Studies in Construction Materials","volume":"23 ","pages":"Article e05004"},"PeriodicalIF":6.5,"publicationDate":"2025-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144534240","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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
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