Article
Chemistry, Physical
Hosein Zanjirani Farahani, Atiye Farahani, Pouyan Fakharian, Danial Jahed Armaghani
Summary: Polymer concrete, with silica fume powder and vinyl ester resin as replacements for Portland cement, exhibits improved mechanical properties and durability. The combination of 10% silica fume and 5% vinyl ester resin results in the highest compressive strength (34.26 MPa) and tensile strength (4.92 MPa). Additionally, a mixture design containing 15% vinyl ester resin and 5% silica fume demonstrates minimal initial and final water absorption (0.62% and 1.95% respectively), indicating good durability.
Article
Green & Sustainable Science & Technology
Adewumi John Babafemi, Nina Sirba, Suvash Chandra Paul, Md Jihad Miah
Summary: This study investigates the use of recycled plastic waste to replace natural sand in concrete and explores the performance of a unique combination of all types of plastics and Polyethylene Terephthalate (PET). The results show that both Resin8 and PET are suitable as partial replacements for sand in concrete.
Article
Construction & Building Technology
Shengying Zhao, Xinchun Guan, Guofu Qiao, Jingjing Lyu
Summary: This paper presents a model to calculate the long-term compressive strength of SAP-modified concrete compared to concrete without SAP. The model takes into account the influence of paste strength and SAP void content. Results show that the addition of internal curing water can enhance the strength of concrete, but there exists a critical water-to-binder ratio above which the addition of water reduces strength. The model is validated by experimental results and is applicable to various types of concrete.
CEMENT & CONCRETE COMPOSITES
(2022)
Article
Chemistry, Physical
Yuka Morinaga, Yuya Akao, Daisuke Fukuda, Yogarajah Elakneswaran
Summary: A delayed absorption type of SAP, I-SAP, was fabricated in this study and found to increase the compressive strength of concrete under 60% RH curing condition without losing strength in hydrated cement paste. The densification of cement matrix due to hydration of belite around SAP surface is the main mechanism for strength development in concrete.
Article
Chemistry, Physical
Tianmeng Liu, Shuqiang Xiong, Qinchao Sun, Junrong Yu, Yan Wang, Zuming Hu
Summary: We report a novel method for the continuous spinning of high-performance and recyclable aerogel fibers by utilizing the coordination property changes of imidazole ligands and different redox states of cobalt ions. The obtained aerogel fibers demonstrate a homogeneous microporous structure, high mechanical strength, low thermal conductivity, excellent thermal stability, and flame resistance. Stretching treatment prior to drying significantly improves the mechanical properties of the aerogel fibers. The non-covalent crosslinking allows for the recycling of the aerogel fibers.
CHEMISTRY OF MATERIALS
(2023)
Article
Engineering, Chemical
Seyed Esmaeil Mohammadyan-Yasouj, Hossein Abbastabar Ahangar, Narges Ahevani Oskoei, Hoofar Shokravi, Seyed Saeid Rahimian Koloor, Michal Petru
Summary: The study shows that the addition of basalt fibers and alginate can improve the compressive strength of polymer concrete under high temperatures, with the best effect observed at 180 degrees Celsius.
Article
Construction & Building Technology
Ammar Qassem Ahdal, Mokhtar Ali Amrani, Abdulrakeeb A. A. Ghaleb, Aref A. Abadel, Hussam Alghamdi, Mohammed Alamri, Muhammad Wasim, Mutahar Shameeri
Summary: The study shows that using natural and waste materials to produce green concrete can reduce greenhouse gas emissions, enhance compressive strength, and lower production costs. By substituting cement with natural zeolite and waste PET fibers, the research identifies optimal concrete mix ratios while effectively reusing waste PET bottles.
CASE STUDIES IN CONSTRUCTION MATERIALS
(2022)
Article
Mechanics
Lik Lam, Liang Huang, Jian-He Xie, Jian-Fei Chen
Summary: This study presents an experimental investigation on the compressive behavior of FRP-confined UHPC, proposing predictive equations and recalibrating a stress-strain model for FRP-confined UHPC. The results show the inadequacy of using a parabolic curve to describe the stress-strain relationship of unconfined UHPC due to its higher strength and more brittle behavior in compression.
COMPOSITE STRUCTURES
(2021)
Article
Construction & Building Technology
Joadelio Chagas Soares, Dylmar Penteado Dias, Eduardo Atem de Carvalho, Jodimar Soares de Azevedo
Summary: Geopolymeric resins show high mechanical strength and potential for repairing reinforced concrete structures. By studying the performance of geopolymeric resins with different compositions, their behavior in engineering applications can be effectively evaluated.
CONSTRUCTION AND BUILDING MATERIALS
(2021)
Review
Construction & Building Technology
Senthil Kumar Kaliyavaradhan, P. S. Ambily, Prabhat Ranjan Prem, Swapnil Balasaheb Ghodke
Summary: This paper provides a comprehensive review of the test methods used to characterize the fresh and hardened properties of 3DPC and discusses the factors influencing test techniques and future research directions for standardizing the test methods. The extensive information provided in this review will assist the engineering community and 3DPC manufacturers in selecting suitable methods or standards to test 3DPC.
AUTOMATION IN CONSTRUCTION
(2022)
Article
Chemistry, Physical
Jawad Ahmad, Rebeca Martinez-Garcia, Jesus de-Prado-Gil, Kashif Irshad, Mohammed A. El-Shorbagy, Roman Fediuk, Nikolai Ivanovich Vatin
Summary: This study aims to improve the sustainability of concrete by using recycled concrete aggregate (RCA) as coarse aggregate and waste glass (WG) as a filler material. The results show that as the substitution ratio of WG and RCA increases, the workability of concrete decreases, but the mechanical performance improves to a certain extent.
Article
Construction & Building Technology
Peiliang Shen, Jian-Xin Lu, Haibing Zheng, Songhui Liu, Chi Sun Poon
Summary: The study proposes a novel design concept for high strength pervious concrete by using ultra-high performance paste as binder to improve mechanical properties and compressive strength through enhancing homogeneity and compatibility between the paste and aggregates. The increased compressive strength is achieved by combining aggregates with two-size ranges to improve interlocking effects, while the enhancement of membrane-forming ability optimizes the bonding area of cement paste between aggregates.
CONSTRUCTION AND BUILDING MATERIALS
(2021)
Article
Chemistry, Physical
Abdelhamid Karouche, Kamel Hebbache, Cherif Belebchouche, Noureddine Lahbari, Oussama Kessal, Slawomir Czarnecki
Summary: This experimental study investigates the behavior of carbon-fiber-reinforced polymer (CFRP) confined concrete cylinders under uniaxial loads. The results show that using low strength concrete significantly improves the compressive strength of the specimens. Transversally confined concrete cylinders exhibit higher strength gains compared to longitudinally confined cylinders. Adding sand to the resin increases the compressive strength of confined concrete cylinders and reduces costs.
Article
Construction & Building Technology
Quraish Qusay Ali, Baris Erdil, Taha Mohammed Jassam
Summary: This study investigates the effect of different cold joint angles on the splitting tensile and compressive strength of concrete. The results show that compressive strength is not affected by cold joint angles of 0 degrees, 20 degrees, 45 degrees, and 90 degrees, with a difference of almost 10%. However, a cold joint angle of 65 degrees significantly affects compressive strength, reducing it by 32.5% to 48.4%. The study also found that a cold joint angle of 90 degrees resulted in the lowest tensile strength.
CONSTRUCTION AND BUILDING MATERIALS
(2023)
Article
Construction & Building Technology
Xie Faxiang, Cai Dingpeng, Ji Lin, Zhang Chuanlong, Ruan Jing, Lei Xiao
Summary: This study investigated the mechanical properties of internally cured concrete with Super Absorbent Polymer (SAP), focusing on compression-shear strength, residual strength, friction coefficient, and cohesive stresses. The research established failure criteria based on octahedral stress space and twin-shear strength theory, which were effectively verified by experimental results of other concretes in literature, proving the efficiency and benefits of engineering applications of SAPC.
CONSTRUCTION AND BUILDING MATERIALS
(2021)
Article
Engineering, Multidisciplinary
Hussein Elsanadedy, Halil Sezen, Husain Abbas, Tarek Almusallam, Yousef Al-Salloum
Summary: This study conducts nonlinear dynamic analysis on the Ohio Union building, considering the buckling of columns, to assess its potential for progressive collapse and compares the results with test observations and linear static analysis. New dynamic increase factors are recommended for the linear static analysis to be used in conjunction with force-controlled and deformation-controlled actions.
ENGINEERING SCIENCE AND TECHNOLOGY-AN INTERNATIONAL JOURNAL-JESTECH
(2022)
Article
Engineering, Civil
Abdulrahman Albidah, Mohammed Alghannam, Hussam Alghamdi, Husain Abbas, Tarek Almusallam, Yousef Al-Salloum
Summary: Alkali-activated or geopolymer composites are suggested as a promising environmentally friendly alternative to ordinary Portland cement concretes and mortars. This study tested thirteen concrete mixes to investigate their fresh and mechanical properties. The study explored the impact of partially replacing metakaolin (MK) with ground granulated blast furnace slag (GGBFS) and silica fume (SF) on the concrete, as well as the effect of the water-to-solids ratio. The findings showed that a partial replacement of MK by up to 10% with GGBFS resulted in a 10% reduction in compressive strength but improved early strength development.
EUROPEAN JOURNAL OF ENVIRONMENTAL AND CIVIL ENGINEERING
(2023)
Article
Engineering, Civil
Abdulaziz Alsaif, Abdulrahman Albidah, Aref Abadel, Husain Abbas, Tarek Almusallam, Yousef Al-Salloum
Summary: This research primarily investigates the influence of incorporating steel fibers in Rubberized concrete mixes on impact resistance. The results show that the incorporation of blended fibers in the mixes substantially enhances the initial and failure impact energy. The concrete slabs containing rubber and steel fiber exhibit excellent impact performance in projectile impact tests.
Article
Engineering, Civil
Tarek Almusallam, Husain Abbas, Omar Hodali, Nadeem Siddiqui, Yousef Al-Salloum
Summary: Recent investigations have shown that the use of prestressing, addition of fibers, and steel lining can enhance the overall performance of concrete, particularly its impact resistance. This study focuses on the impact response of steel-lined post-tensioned fiber-reinforced concrete (PFRC) and examines its behavior against projectile impact. The experimental results indicate that the inclusion of steel fibers increases the ballistic limit, reduces penetration and scabbing depths, and decreases ejected mass from the back face. Furthermore, the use of a steel lining on the rear face significantly improves the ballistic limit and reduces ejected mass. Modified NDRC equations and an empirical model based on the UKAEA formula are developed to predict penetration depth and ballistic limit of prestressed steel-lined PFRC slabs, respectively, taking into account the effects of prestressing, steel fibers, and steel lining.
ARCHIVES OF CIVIL AND MECHANICAL ENGINEERING
(2023)
Article
Mechanics
Hussein Elsanadedy, Louai Alaoud, Husain Abbas, Tarek Almusallam, Yousef Al-Salloum
Summary: The goal of this research was to investigate the influence of externally attached CFRP U-wraps and confining steel stirrups on enhancing the bond strength of substandard lap spliced GFRP bars in concrete beams using finite element modeling. The study included modeling of nonlinearity of concrete material and GFRP bars, bond-slip at the interface of concrete with GFRP bars, and contact between CFRP sheets and concrete substrate. The results provided equations to compute the strain efficiency of GFRP spliced bars in terms of the confining reinforcement index.
COMPOSITE STRUCTURES
(2023)
Article
Construction & Building Technology
Husain Abbas, Hussein Elsanadedy, Louai Alaoud, Tarek Almusallam, Yousef Al-Salloum
Summary: The bond between FRP bars and surrounding concrete is a major concern for the behavior of FRP-reinforced structural members. The study found that the use of lap splices designed according to ACI code greatly improves the bond performance of GFRP bars. Increasing the density of shear stirrups in the lap zone and reducing the overlap distance of bars further enhances the bond performance and increases the peak load capacity of GFRP-reinforced beams.
CONSTRUCTION AND BUILDING MATERIALS
(2023)
Article
Polymer Science
Hussein Elsanadedy, Husain Abbas, Tarek Almusallam, Yousef Al-Salloum
Summary: In RC frame structures, wall-like columns are laid within the space occupied by masonry walls to minimize the column projections into the usable area. Strengthening these columns using a hybrid system of NSM steel rebars and CFRP laminates is an efficient technique. The study focuses on devising an efficient scheme to strengthen existing RC wall-like columns using the NSM/CFRP system. Tests and analysis showed that the scheme using vertical NSM rebars combined with wrapping three CFRP layers onto the column surface was the most efficient, enhancing the ultimate load capacity by 80%.
Article
Chemistry, Multidisciplinary
Nadeem Siddiqui, Husain Abbas, Tarek Almusallam, Q. M. Li, Yousef Al-Salloum
Summary: A simulation-based probabilistic method is proposed to assess the reliability of steel-lined and prestressed fiber-reinforced concrete (PFRC) slabs against impact loads. Experimental projectile impact testing was carried out on prestressed and non-prestressed FRC slabs, considering the quantity of steel fibers, steel lining, and prestress level as variables. The results indicate that adding steel fibers significantly increases slab reliability, while steel lining on the back face doubles the slab's reliability. Additionally, even a minimal amount of prestressing improves the reliability of PFRC slabs against projectile impacts noticeably.
APPLIED SCIENCES-BASEL
(2023)
Article
Materials Science, Multidisciplinary
Husain Abbas, Mansuer Al-Dabaan, Nadeem Siddiqui, Tarek Almusallam, Yousef Al-Salloum
Summary: Composite walls consist of two reinforced concrete walls with or without a filling between them. This study investigates the impact resistance of composite walls with granular filling and compares it with monolithic RC walls. The results demonstrate that composite walls have improved impact response compared to monolithic walls.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2023)
Article
Engineering, Multidisciplinary
Aref Abadel, Saleh Alenzi, Tarek Almusallam, Husain Abbas, Yousef Al-Salloum
Summary: This paper investigates the dowel action contribution of longitudinal reinforcement in concrete deep beams with different reinforcement schemes. The results show that both steel and GFRP rebars significantly contribute to the shear strength of the beams. However, the use of a hybrid system of steel and GFRP bars reduces the dowel action of steel bars due to their combined action.
AIN SHAMS ENGINEERING JOURNAL
(2023)
Article
Engineering, Civil
Hussein Elsanadedy, Mohammad Khawaji, Husain Abbas, Tarek Almusallam, Yousef Al-Salloum
Summary: This paper investigates the progressive collapse possibility of an existing reinforced concrete building against blast-generated waves. A two-stage finite element analysis was conducted to assess the damage and stress state of different structural elements. The results enhance the understanding of progressive collapse potential in reinforced concrete buildings and can aid in the development of mitigation strategies.
Article
Engineering, Civil
Aref A. Abadel, Husain Abbas, Ibrahim M. H. Alshaikh, Khaled Sennah, Rabin Tuladhar, Ali Altheeb, Mohammed Alamri
Summary: This study experimentally demonstrates that ultra-high-performance fiber-reinforced concrete (UHPFC) deep beams strengthened with carbon fiber-reinforced polymer (CFRP) sheets can improve their shear strength after exposure to high temperatures. The test results show that the post-peak behavior is significantly influenced by elevated temperatures, and the strengthening schemes greatly enhance the post-cracking behavior, shear strength, energy-based ductility index, and deflection ductility index of UHPFC deep beams.
Article
Construction & Building Technology
Husain Abbas, Mohammed A. Alanazi, Hussein Elsanadedy, Tarek Almusallam, Aref Abadel, Yousef Al-Salloum
Summary: Recent research studies have shown encouraging results of using GFRP rebars as column reinforcement. However, there are still no guidelines for deciding the tie spacing for different rebar diameters due to limited studies on these aspects. This study explored the influence of parameters on the compression response of concrete columns reinforced with GFRP rebars, and found that the change in rebar diameter had almost no effect on column behavior, and the optimal spacing of ties was 8db.
JOURNAL OF BUILDING ENGINEERING
(2023)
Article
Construction & Building Technology
Husain Abbas, Tarek Almusallam, Aref Abadel, Saleh Alenzi, Yousef Al-Salloum
Summary: This article examines the shear behavior of functionally graded high-strength self-compacting concrete deep beams reinforced with a hybrid of steel and GFRP bars. The study shows that the hybrid system effectively improves the structural capacity of concrete beams and increases the load required to initiate cracking. The addition of fibers in the concrete enhances the deep beam shear capacity, and the use of a hybrid rebar system does not affect the shear resistance of the deep beams compared to using GFRP bars only.
CASE STUDIES IN CONSTRUCTION MATERIALS
(2023)
Article
Construction & Building Technology
Husain Abbas, S. M. Ibrahim, Naif Al-Hazmi, Hussein Elsanadedy, Tarek Almusallam, Yousef Al-Salloum
Summary: Experimental and numerical investigations were conducted on the retrofitting of half-scale wall-like reinforced concrete (RC) columns. The columns were strengthened by using external confinement through fiber-reinforced polymer (FRP) wraps and/or steel/FRP strips with/without modification of the column cross-section. The axial load versus displacement and strain curves were discussed. The experimental results were compared with numerical models, showing a reasonably close agreement with less than 10% error for the peak load. Different confinement schemes led to an enhancement in the load capacity of the strengthened columns in the range of 30-42% compared to the control column. Significant ductility improvements were observed when using FRP wraps after shape modification.
Article
Construction & Building Technology
Qi Jiang, Wei Liu, Shaopeng Wu, Xuanwen Gou
Summary: This study analyzes the erosion mechanisms of NaCl solution on asphalt concrete and finds that NaCl solution softens asphalt and promotes the intrusion of crystalline salt into it. Salt crystallization alters the surface roughness of aggregates, resulting in a decrease in skid resistance but an improvement in compressive strength. Additionally, the concentration of NaCl solution initially has no significant impact on the mechanical performance of asphalt concrete, but its domination gradually increases with the intensification of cyclic effects.
CONSTRUCTION AND BUILDING MATERIALS
(2024)
Article
Construction & Building Technology
Lili Kan, Lan-qing Dai, Ning Kong, Bin Peng, Fei Wang
Summary: This paper investigates the effect of freezing and thawing cycles on the tensile behavior of cracked ultra-high performance concrete (UHPC). The results show that long-term freezing and thawing action deteriorates the cracking strength, tensile strength, tensile strain, and strain energy of cracked UHPC. On the other hand, the action of water generally favors the development of tensile properties of UHPC. The crack distribution tends to be unsaturated under freezing and thawing environment, and the re-hydration reaction is hindered. The pore structure near the crack varies under different environments.
CONSTRUCTION AND BUILDING MATERIALS
(2024)
Article
Construction & Building Technology
Xin Xiao, Jingwei Li, Qingke Meng, Xiangshan Hou, Yanhui Liu, Xujiang Wang, Wenlong Wang, Shengtao Lu, Yuzhong Li, Yanpeng Mao, Tong Li
Summary: Preparing gypsum-based self-leveling mortar (GSLM) using beta-hemihydrate gypsum and solid wastes-derived sulfoaluminate cement (WSAC) can improve the mechanical performance of the mortar, but phosphorus impurities can weaken the hydration speed and degree.
CONSTRUCTION AND BUILDING MATERIALS
(2024)
Article
Construction & Building Technology
Sihang Bao, Junzhen Di, Yanrong Dong, Ziqing Gao, Qing Gu, Yuanfang Zhao, Hongyu Zhai
Summary: Tailings dam break and leakage accidents pose a threat to the safety of people in mining areas and cause severe environmental pollution. This study focuses on solidifying tailing sand using microbial induced calcite precipitation (MICP) to improve strength and fix heavy metals. The curing time of MICP bio-cemented tailings is found to significantly impact the strength of tailings, while its effect on heavy metal fixation is minimal. The optimized MICP curing time is 10 days, resulting in improved strength and cementation of tailings particles.
CONSTRUCTION AND BUILDING MATERIALS
(2024)
Article
Construction & Building Technology
Ferhat Benmahiddine, Fares Bennai, Achraf Charaka, Ameur El Amine Hamami, Abdelkader Tahakourt, Rafik Belarbi
Summary: This paper studied the effects of hysteresis on the hygrothermal behavior at the building scale. Through laboratory validation and numerical simulations, it was found that hysteresis has a significant impact on the relative humidity and total heat fluxes in buildings, while it does not have a noticeable effect on temperature variations.
CONSTRUCTION AND BUILDING MATERIALS
(2024)
Article
Construction & Building Technology
You Gao, Wei He, Xiayang Zhang, De'an Sun, Pei Li
Summary: This study determined the boundary line between the swelling and compression deformation zone in lateritic clay through wetting tests, and proposed a simple bimodal SWRC model. It also found that the existing strength model underestimated the tested values in the medium to high suction range, therefore a segmented strength equation was introduced for enhanced predictions of the strength properties of lateritic clay.
CONSTRUCTION AND BUILDING MATERIALS
(2024)
Article
Construction & Building Technology
Prabhath Ranjan Kumar Soda, Asheer Mogal, Kalyan Chakravarthy, Nikhil Thota, Nimish Bandaru, Sanjay Kumar Shukla, K. M. Mini
Summary: This study investigates the use of encapsulated bacteria to improve the self-healing ability of concrete. Through various tests, it is found that using 20% cement-coated alginate beads (CCAB) and 5% nanosilica (NS) can achieve optimal strength and healing. This research is significant for enhancing the durability of concrete.
CONSTRUCTION AND BUILDING MATERIALS
(2024)
Article
Construction & Building Technology
Shizhe Wang, Haiping Wu, Wen Yang, Wei Wang, Zhibo Zhu, Kun Nie, Luoxin Wang, Hua Wang, Jing Wu
Summary: In this study, photothermal-heat storage concrete (PHSC) was developed with excellent photothermal conversion performance and heat storage capacity. By absorbing and storing solar energy during the day and releasing it at night, PHSC can effectively reduce energy consumption in buildings.
CONSTRUCTION AND BUILDING MATERIALS
(2024)
Article
Construction & Building Technology
Robin Deb, Jialuo He, Geetika Mishra, Yaghoob (Amir) Farnam
Summary: Incorporation techniques of phase change materials in cementitious composites have a significant influence on thermal properties. This study investigated the thermal behavior of low-temperature PCM when subjected to varying temperature change rates and pore confinement inside the porous network of lightweight aggregates. The results showed that ramp rates affect the nucleation and crystallization growth process during the phase transition, and the pore structure of the aggregates affects the supercooling phenomenon and confinement pressure of the PCM.
CONSTRUCTION AND BUILDING MATERIALS
(2024)
Article
Construction & Building Technology
Eduardo Ferreira, Payam Sotoudeh, Dagmar Svecova
Summary: This study investigates the fatigue behavior of concrete under different stress reversal conditions. The results indicate that stress reversal generally causes more severe damage and reduces the cycles to failure compared to tensile fatigue. Additionally, adding some level of compression contributes to the energy required for failure under stress reversal fatigue. Specimens with higher concentration of fractured aggregates achieve longer fatigue lives.
CONSTRUCTION AND BUILDING MATERIALS
(2024)
Article
Construction & Building Technology
Mag Raj Gehlot, Sandeep Shrivastava
Summary: This study evaluates the compatibility relationship between plaster bonds and the substrate under an accelerated aging environment, and finds that incorporating an appropriate amount of granite cutting waste can improve the strength parameters and adhesion of the cement mortar.
CONSTRUCTION AND BUILDING MATERIALS
(2024)
Article
Construction & Building Technology
Min Zhang, Qirui Luo, Mingke Deng, Shixing Zhao
Summary: This study investigated the bond behavior between carbon FRCM composites with added short fibers and concrete substrates. The effects of different factors were considered and 36 specimens were tested and discussed. The experimental results were analyzed in terms of failure mode, load-slip curve, and characteristic parameters, and the contribution of weft yarns was taken into account in the developed bondslip model.
CONSTRUCTION AND BUILDING MATERIALS
(2024)
Article
Construction & Building Technology
Dengkai Liu, Hongniao Chen, Ray Kai Leung Su
Summary: The susceptibility of building stones to fire and high temperature was investigated in this study by examining their physical and mechanical properties. The results show that both compressive and tensile properties of stones are affected by temperature changes. The tensile strength is particularly sensitive to temperature changes, requiring special attention to the components subjected to tensile stress in stone buildings. Principal component analysis was used to predict the mechanical properties of stones, providing a new method for calculating the residual mechanical properties after high temperature or fire.
CONSTRUCTION AND BUILDING MATERIALS
(2024)
Article
Construction & Building Technology
Joso Maria Raposo, Eduardo Cavaco, Luis Costa Neves, Eduardo Julio
Summary: This paper investigates the correlation between the friction coefficient and the surface roughness of concrete-to-concrete interfaces. Experimental tests were performed on specimens with different surface treatments, and the surface roughness parameters were analyzed and correlated with the shear strength and friction coefficient. The results showed that certain roughness parameters had a strong positive correlation with the friction coefficient, while others had little or no correlation. A novel combined roughness parameter with optimized correlation was proposed.
CONSTRUCTION AND BUILDING MATERIALS
(2024)
Article
Construction & Building Technology
Chiara Riccardi, Massimo Losa
Summary: The interest in using bio materials in asphalt pavements is growing due to economic reasons and environmental benefits. This study aimed to review the use of bio extenders as additives in binders, with a focus on replacements greater than 20% of fossil binder. The properties of bio-extended binders were found to vary substantially depending on the biomass source and production process.
CONSTRUCTION AND BUILDING MATERIALS
(2024)
