Case Studies in Construction Materials最新文献

{"title":"Toward sustainable construction: Comprehensive utilization of coal gangue in building materials","authors":"Lei Zhang ,&nbsp;Dehui Zhu ,&nbsp;Afshin Marani ,&nbsp;Moncef L. Nehdi ,&nbsp;Ling Wang ,&nbsp;Guofan Yang ,&nbsp;Junfei Zhang","doi":"10.1016/j.cscm.2025.e04930","DOIUrl":"10.1016/j.cscm.2025.e04930","url":null,"abstract":"<div><div>Coal gangue (CG), as a major solid waste byproduct of the coal industry, has attracted widespread attention due to its potential in construction materials. This review systematically evaluates the activation mechanisms and engineering performance of CG, exploring the impact of various activation methods such as thermal, mechanical, chemical, microwave, and synergistic activation on its hydration potential. The findings suggest that activated CG can significantly enhance the cementitious performance of cement-based materials, reduce cement consumption, and contribute to sustainable construction practices. Thermal activation enhances CG reactivity by removing combustible components and transforming mineral phases, while mechanical activation increases the specific surface area through fine milling. Chemical activation, using alkaline or acidic activators, promotes the formation of hydration products by depolymerizing silica-aluminate networks, and microwave activation rapidly enhances reactivity by converting electromagnetic energy into thermal energy. When used as a supplementary cementitious material, activated CG improves durability, but may also affect workability and mechanical properties. When used as an aggregate, CG’s high water absorption and low elastic modulus can lead to increased shrinkage and reduced freeze-thaw resistance, requiring strict control of the substitution ratio. Future research should focus on optimizing activation methods to enhance CG’s reactivity and performance, while addressing challenges related to its high water absorption and variable mineral composition. Additionally, a life cycle assessment of CG utilization in construction materials should be conducted to comprehensively evaluate its environmental impact.</div></div>","PeriodicalId":9641,"journal":{"name":"Case Studies in Construction Materials","volume":"23 ","pages":"Article e04930"},"PeriodicalIF":6.5,"publicationDate":"2025-06-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144291610","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}

{"title":"Experimental study on sulfate corrosion behavior in water saturated PMPC paste and effect of W/C","authors":"Yuying Hou ,&nbsp;Yin Lv ,&nbsp;Ruohao Zhang ,&nbsp;Tao Li ,&nbsp;Xiamin Hu ,&nbsp;Yante Mao ,&nbsp;Xuexin Hu ,&nbsp;Zhaoyu Wang","doi":"10.1016/j.cscm.2025.e04928","DOIUrl":"10.1016/j.cscm.2025.e04928","url":null,"abstract":"<div><div>The paper investigates the sulfate corrosion behavior in potassium magnesium phosphate cement (PMPC) paste immersed in a 5 % Na₂SO₄ solution and effect of W/C. The conclusions are as follows: the concentration of sulfate ions decreases significantly with increasing erosion depth, the PMPC specimen with large W/C (P1) exhibited a higher content of SO₄²⁻ at the same depth compared to the PMPC specimen with small W/C (P0). Both the SO₄²⁻penetration depth and the SO₄²⁻ content inside PMPC specimen gradually increase with erosion ages. when soaked for 360 days, the measured erosion depth (h₀) in the P1 specimen is 1.43 times that of the P0 specimen, and the SO₄²⁻ content at a depth of 2 mm is 1.11 times that of the P0 specimen. The relationship between the diffusion depth x (mm) of the SO₄²⁻ and the SO₄²⁻ content c (x, t) in PMPC specimens is well described by a polynomial with R² ≥ 0.999. The surface sulfate content (c_s (0, t)) gradually increases with soaking time (t). The c_s (0, t) of P1 specimens is significantly larger than that of P0 specimens, and its calculated erosion depth of the SO₄²⁻ (h₀₀) exceeds that in P0 specimens. After 360 days of immersion, the c_s (0, t) of the P1 specimen is slightly larger than that of the P0 specimen, the h₀₀ of P1 and P0 specimens is 14 mm and 19 mm, respectively. The diffusion coefficient of SO₄²⁻ (D) in PMPC specimens is on the order of 10⁻⁷ mm²/s (1/10 D of Portland cement concrete reported in previous studies). The D first increases and then decreases with t. At the same soaking age, the D of P1 specimens is significantly larger than that of P0 specimens. Specifically, the D of P1 specimens is 1.65 times that of P0 specimens when the soaking age is 360 days. As the immersing age increases, the strengths of PMPC test pieces first increase and then decrease. After immersing in the solution for 360 days, the strength residual rate of P0 test pieces is higher than 95 %, while the strength residual rate of P1 test pieces, though lower than that of P0, is still greater than 90 %. The development trend of the total porosity, diffusion coefficient and strength of PMPC specimens with different sulfate solution soaking ages is consistent.</div></div>","PeriodicalId":9641,"journal":{"name":"Case Studies in Construction Materials","volume":"23 ","pages":"Article e04928"},"PeriodicalIF":6.5,"publicationDate":"2025-06-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144365814","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}

{"title":"A review on improving the key engineering properties of lateritic soil by treating industrial by-products and wastes","authors":"Weizheng Liu ,&nbsp;Habtamu Bogale Burato ,&nbsp;Jiming Tan ,&nbsp;Xuanjia Huang ,&nbsp;Frank Siaw Ackah","doi":"10.1016/j.cscm.2025.e04856","DOIUrl":"10.1016/j.cscm.2025.e04856","url":null,"abstract":"<div><div>Lateritic soils are commonly used in subgrade construction due to their widespread availability in tropical and subtropical regions. However, these soils often necessitate treatment because of their inadequate engineering properties. Although cement has been traditionally employed to address these challenges, utilizing industrial by-products and waste provides a more sustainable alternative, aligning with the principles of sustainable construction. This study reviews recent advancements in improving the engineering properties of lateritic soils for subgrade applications through by-products and waste materials. A systematic review of studies published between 2018 and 2024 examined the benefits and challenges of stabilizing lateritic soils with these materials. To address the gap in review articles on incorporating industrial waste or by-products into lateritic subgrade soils, this study specifically investigated the impacts of these materials on the compaction, mechanical, hydraulic, deformation, durability, and microstructural properties of lateritic soils. This was achieved through a comparative analysis of untreated and treated samples. The results reveal that incorporating waste materials can substantially improve the key engineering properties of lateritic soils. However, carefully selecting the type and amount of waste material used is essential for achieving compatibility in soil stabilization. The findings of this review are expected to encourage practitioners and researchers to advance sustainable materials in subgrade construction while contributing to the existing knowledge base.</div></div>","PeriodicalId":9641,"journal":{"name":"Case Studies in Construction Materials","volume":"23 ","pages":"Article e04856"},"PeriodicalIF":6.5,"publicationDate":"2025-06-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144297797","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}

{"title":"Life cycle assessment of earth-based residential unit “TOVA”: A 3D printed on-site load-bearing structure","authors":"Deena El-Mahdy ,&nbsp;Eugene Marais ,&nbsp;Marwa AbdelRahim ,&nbsp;Alexandre Dubor ,&nbsp;Edouard Cabay","doi":"10.1016/j.cscm.2025.e04925","DOIUrl":"10.1016/j.cscm.2025.e04925","url":null,"abstract":"<div><div>This paper aims to assess the environmental life cycle of a real lead-bearing 3D printed earthen-based (3DP-E) structure built on-site, “TOVA” in Spain. The method followed a cradle-to-site approach focusing on wall structure. Three different structure scenarios are compared with the 3DP-E; conventional fired bricks construction, 3DP concrete (3DP-C), and 3DP-E (optimised). The results show that the conventional structure scenario is the highest impact in all the indicators. <strong>Global warming</strong> indicates the highest results in the conventional method than the 3DP methods with a value of 12004.5 kg CO2 eq, while 264.759 kg CO2 eq, 161.368 kg CO2 eq, and 592.995 kg CO2 eq, respectively for the 3DP-E, 3DP-E(O), and 3DP-C respectively. A significant environmental enhancement in global warming for 3DP-E and 3DP-E(optimized) are 55 % and 72 % respectively compared to 3DP-C, and around 97 % enhancement compared to the conventional technique. Regarding the carbon emission from transportation, 3DP-E recorded the lowest ratio from transportation, as 85 % of the materials were locally sourced from the site. Unlike the 3DP-C and conventional scenarios where both had the highest ratio of 100 %, where all the materials were imported. This paper contributes by highlighting the potential of 3DP-E to enhance sustainability by reducing the environmental impact of construction.</div></div>","PeriodicalId":9641,"journal":{"name":"Case Studies in Construction Materials","volume":"23 ","pages":"Article e04925"},"PeriodicalIF":6.5,"publicationDate":"2025-06-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144297795","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}

{"title":"Establishment on the chloride resistant clad rebar weld process in simulated seawater","authors":"Zecheng Zhuang ,&nbsp;Weiping Lu ,&nbsp;Zhe Gou ,&nbsp;Lei Zeng ,&nbsp;Rifeng Wang ,&nbsp;Xuehai Qian ,&nbsp;Erte Lin ,&nbsp;Zhen Li ,&nbsp;Yong Xiang ,&nbsp;Jianping Tan","doi":"10.1016/j.cscm.2025.e04927","DOIUrl":"10.1016/j.cscm.2025.e04927","url":null,"abstract":"<div><div>To enhance the weld process of the new type of clad rebar construction in the marine environment, the weld process of the clad rebar was established. Four different weld processes were used to weld the clad rebars. The microscopy of the welded joints was examined using a optical microscope. The mechanical characteristics of the welded specimens were assessed through the microhardness test. The corrosion resistant of the welded materials was evaluated using an electrochemical corrosion test. The corrosion morphology and element distribution were observed using scanning electron microscopy. The consequences depicted that arc welding has little effects on the microstructure of welded joints, and the hardness values of stainless steel welding metals, ranked from highest to lowest, are as follows: Metal Active Gas (MAG) welding at 115 A welding current, Arc welding, Metal Inert Gas (MIG), and Metal Active Gas (MAG) welding at 230 A welding current. According to the results of corrosion experiments, the welding metal from Arc welding exhibited the highest corrosion resistance, followed by the MAG welding at 230 A, MIG welding, and MAG welding at 115 A. After combining the microscopy, mechanical characteristics, and corrosion resistance, it was found that Arc welding is the most reasonable of the four welding processes. Select the most proper weld processes parameters, moreover, it lays a scientific foundation to establish the subsequent welding processes of the clad steel bars.</div></div>","PeriodicalId":9641,"journal":{"name":"Case Studies in Construction Materials","volume":"23 ","pages":"Article e04927"},"PeriodicalIF":6.5,"publicationDate":"2025-06-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144281192","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}

{"title":"Impact of pore geometry on mechanical properties and anti-clogging efficiency in porous drainage pavement structures","authors":"Qidan Xiao ,&nbsp;Lianting Cai ,&nbsp;Yi Liu ,&nbsp;Mengli Zhang ,&nbsp;Xiumin Hu","doi":"10.1016/j.cscm.2025.e04929","DOIUrl":"10.1016/j.cscm.2025.e04929","url":null,"abstract":"<div><div>Pervious concrete, a fundamental material in sponge city development, plays a vital role in mitigating surface runoff through enhanced rainwater infiltration. However, its long-term effectiveness is hindered by particle-induced pore blockage, which significantly reduces the permeability coefficient. Additionally, conventional pervious concrete often exhibits inadequate mechanical strength, limiting its capacity to regulate urban waterlogging and mitigate the heat island effect over time. This study integrated silica fume, polypropylene fibers, and a polycarboxylate superplasticizer into a self-compacting concrete matrix, utilizing 3D printing technology to fabricate porous drainage pavement structures with varied pore geometries. Finite element simulations using ANSYS were employed to evaluate the impact of five pore shapes on mechanical performance, complemented by experimental validation. The results reveal that structures with circular pores demonstrate superior performance, achieving a compressive strength of 50.71 MPa and a splitting tensile strength of 4.73 MPa. The close agreement between simulation and experimental results, with deviations within 4 %, underscores the reliability of the simulation model. Furthermore, circular pore structures exhibited the highest permeability coefficient (26.51 mm/s) and the lowest clogging mass fraction (3.23 %), confirming their enhanced hydraulic and anti-clogging capacities. Overall, the proposed porous drainage pavement system demonstrates significantly improved mechanical robustness and resistance to clogging compared to traditional pervious concrete. The hierarchical interception mechanism, comprising an upper wedge-shaped flow-guiding layer and a lower regular geometric seepage layer, effectively enhances the self-purification capability of the structure, offering a promising solution for sustainable urban drainage infrastructure.</div></div>","PeriodicalId":9641,"journal":{"name":"Case Studies in Construction Materials","volume":"23 ","pages":"Article e04929"},"PeriodicalIF":6.5,"publicationDate":"2025-06-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144313463","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}

{"title":"Enhancing sulfate resistance of cement-stabilized recycled aggregate with steel slag: Optimized mix design and mechanistic insights","authors":"Yuyuan Deng ,&nbsp;Xuancang Wang ,&nbsp;Jing Zhao ,&nbsp;Haoxiang Liu ,&nbsp;Lv Chen","doi":"10.1016/j.cscm.2025.e04904","DOIUrl":"10.1016/j.cscm.2025.e04904","url":null,"abstract":"<div><div>Cement-stabilized recycled aggregate (CSR) has garnered considerable attention as a sustainable material in pavement construction. However, its performance significantly deteriorates under sulfate attack. This study aims to enhance the sulfate resistance of CSR by incorporating steel slag aggregate (SSA) and optimizing the mix design using the D-optimal mixture design (DOD) method. Dosage ranges for recycled aggregate (RA) and SSA were determined by unconfined compressive strength (UCS) and thermal shrinkage tests. The optimal mix proportion of cement-stabilized RA and SSA (CSRS) was established using the DOD model. X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR), and scanning electron microscopy-energy dispersive spectroscopy (SEM–EDS) were employed to investigate the mechanism by which SSA enhances the sulfate resistance of CSR. The results indicated that the replacement ratios of RA and SSA for natural aggregate (NA) should be limited to 60 % and 36 %, respectively. The optimal CSRS mix proportion determined by the DOD model comprised 40 % NA, 48.5 % RA, and 17 % SSA. Experimental validation demonstrated that all absolute relative deviations (ARD) were below 5 %, verifying the accuracy of the DOD model. The reactive minerals in SSA, primarily C₂S and C₃S, participated in hydration reactions, leading to the formation of additional C-S-H gel, which refined the interfacial transition zone (ITZ), reduced its width to 27 μm, limited sulfate ingress pathways, and mitigated sulfate attack on CSRS. These findings provide valuable insights for optimizing similar mixture designs and promoting RA utilization in pavement base applications.</div></div>","PeriodicalId":9641,"journal":{"name":"Case Studies in Construction Materials","volume":"23 ","pages":"Article e04904"},"PeriodicalIF":6.5,"publicationDate":"2025-06-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144291611","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}

{"title":"Effects of fly ash content on the macro-performance and microstructure of self-compacting concrete using tuff powder under freeze-thaw cycles","authors":"Jingbin Zhang ,&nbsp;Chongshi Hu ,&nbsp;Dejian Shen ,&nbsp;Ding Nie ,&nbsp;Xiaoyun Qin ,&nbsp;Xuehui An","doi":"10.1016/j.cscm.2025.e04926","DOIUrl":"10.1016/j.cscm.2025.e04926","url":null,"abstract":"<div><div>Fly ash (FA) and tuff powder (TP) were incorporated to improve the macro-performance and microstructure of self-compacting concrete (SCC) under freeze-thaw cycles (FTCs). Three SCC mixtures with FA replacement levels of 0 %, 10 %, and 20 %, along with 15 % TP, were tested for rheological properties (slump flow and V-funnel), mechanical performance (compressive and splitting tensile strength), freeze-thaw resistance, and microstructural characteristics. Freeze-thaw resistance was evaluated using mass loss rate, relative dynamic elastic modulus (RDEM), and relative compressive strength. The results indicate that FA improves the SCC flowability but reduces segregation resistance. While FA decreases compressive and splitting tensile strengths, it enhances compressive strength development over time. Additionally, FA lowers mass loss rates, mitigates RDEM deterioration, and increases relative compressive strength during FTC exposure. Microstructural analysis reveals that FA decreases overall porosity and significantly reduces the volume of harmful and multi-harmful pores. A decline in harmful and multi-harmful pores corresponds with lower mass loss rates and higher RDEM values. Finally, damage models based on mass loss and dynamic elastic modulus are developed to predict SCC service life under FTC conditions, providing a valuable reference for SCC production in the Xizang Autonomous Region.</div></div>","PeriodicalId":9641,"journal":{"name":"Case Studies in Construction Materials","volume":"23 ","pages":"Article e04926"},"PeriodicalIF":6.5,"publicationDate":"2025-06-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144306943","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}

{"title":"Analysis of structural failure of glass roofs of the contemporary art museum in Wrocław","authors":"Jerzy Szołomicki,&nbsp;Grzegorz Dmochowski,&nbsp;Jan Gierczak","doi":"10.1016/j.cscm.2025.e04872","DOIUrl":"10.1016/j.cscm.2025.e04872","url":null,"abstract":"<div><div>Contemporary glass structures in public buildings combine aesthetics with functionality, allowing the design of spacious, glazed spaces. This article focuses on the challenges associated with the design and construction of aluminium-glass structural roofs, analysing the case of roof failure in the courtyard of the Museum of Contemporary Art in Wrocław. Key causes of failure include material selection errors, misinterpretation of loads, and water drainage and sealing imperfections. The analysis highlights the need to consider the specific properties of glass as a building material, perform precise strength calculations, and pay close attention to the assembly details. The case study also reveals the need for further research on the interaction between glass and other materials, as well as the long-term durability of such structures. The conclusions drawn from the analysis emphasise the importance of high-quality design, thorough construction oversight, and regular maintenance, all of which contribute to increased safety and longevity of glass roofs in the future.</div></div>","PeriodicalId":9641,"journal":{"name":"Case Studies in Construction Materials","volume":"23 ","pages":"Article e04872"},"PeriodicalIF":6.5,"publicationDate":"2025-06-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144291609","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}

{"title":"Laboratory study on the asphalt mixture performance by nano-CaCO3 and basalt fiber","authors":"Ahmed Hassan ,&nbsp;Moustafa Abdelsalam ,&nbsp;Ahmed Gamal ,&nbsp;Mohamed Samir Eisa","doi":"10.1016/j.cscm.2025.e04923","DOIUrl":"10.1016/j.cscm.2025.e04923","url":null,"abstract":"<div><div>Due to rapid changes in weather conditions and increased traffic loads, asphalt pavements have become more susceptible to distress such as rutting, fatigue cracks, and potholes. Therefore, significant attention has been focused on improving the performance of these pavements through various modifications. The objectives of this study are to enhance the overall performance of the asphalt mixture and improve its ability to resist traffic loads at both low and high temperatures simultaneously by using double additives from basalt fiber and nano-CaCO₃. The study applied Marshall Stability, Wheel Track Test (WTT), Indirect Tensile Strength (ITS), and Marshall Immersion (MI) tests to assess the performance of the modified mixes. Additionally, the physical properties were examined using Scanning Electron Microscopy (SEM) and Energy Dispersive X-ray (EDX) analysis. Four asphalt mixtures were tested: the first was a control asphalt mix (CAM) to determine the optimum bitumen content (OBC); the second was nano-CaCO₃ modified asphalt mix (NCAM) with 2 %, 4 %, 6 %, and 8 % of the bitumen weight; the third was basalt fiber modified asphalt mix (BFAM) with 0.25 %, 0.5 %, 0.75 %, and 1 % of the asphalt mix weight; and the fourth mixture contained 5.5 % bitumen and optimum ratios of nano-CaCO₃ and basalt fibers (NCBFAM). The results showed that the addition of 8 % nano-CaCO₃ led to significant improvements of 53.97 % in rutting resistance, 22.7 % in low temperature, and 12.5 % in durability (RMS) compared to the control mix (CAM). The addition of 0.5 % basalt fibers improved rutting resistance by 32.54 %, ITS by 7.62 %, and durability by 6.3 %. However, the combination of 8 % nano-CaCO₃ and 0.5 % basalt fibers (NCBFAM) resulted in the most substantial improvements, with increases of 46.83 % in rutting resistance, 18.94 % in low temperature, and 10.26 % in durability compared to the conventional mix. These findings demonstrate that the combined addition of nano-CaCO₃ and basalt fibers significantly enhances the Marshall properties, high and low temperature, and durability of the asphalt mix.</div></div>","PeriodicalId":9641,"journal":{"name":"Case Studies in Construction Materials","volume":"23 ","pages":"Article e04923"},"PeriodicalIF":6.5,"publicationDate":"2025-06-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144272084","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}