Yazar "Yılmaz, Erol" için listeleme
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Additivity effect on properties of cemented coal fly ash backfill containing water-reducing admixtures
Çavuşoğlu, İbrahim; Yılmaz, Erol; Yılmaz, Ali Osman (Elsevier Ltd, 2021)Cemented coal fly ash backfill (CCB), a flowable structure of coal fly ash, binding agent and mixing water, has been often employed in mining operations to offer ground support as well as waste disposal solutions. An ... -
Admixture effects on the rheological/mechanical behavior and micro-structure evolution of alkali-activated slag backfills
Ji, Xubo; Gu, Xiaozhong; Wang, Zhuoran; Xu, Shuai; Jiang, Haiqiang; Yılmaz, Erol (MDPI, 2023)Recently, alkali-activated slag (AAS) has attracted extensive attention in cemented paste backfill (CPB) due to its low cost/CO2 emissions and high strength benefits. However, a comprehensive analysis of the mechanical/rheological ... -
Analysis of strength and microstructural characteristics of mine backfills containing fly ash and desulfurized gypsum
Huang, Zhiqiang; Yılmaz, Erol; Cao, Shua (MDPI, 2021)The utilization of solid wastes (SWs) as a potential resource for backfilling is not only conducive to environmental protection but also reduces the surface storage of waste. Two types of SWs, including fly ash (FA) and ... -
Analysis of tensile mechanical characteristics of fibre reinforced backfill through splitting tensile and three-point bending tests
Xue, Gaili; Yılmaz, Erol; Feng, Guorui; Cao, Shuai (Taylor & Francis Ltd., 2021)The cut-and-fill mining method is used in metalliferous mines thanks to backfilling instead of ore pillars. However, the stability of the artificial cemented tailings backfill (CTB) roof is one of the key influencing factors ... -
Analyzing microscopic structure and macroscopic strength behavior of cement-based tail fills incorporating fiber by X-ray CT scanning technique
Jiang, Meilin; Cao, Shuai; Yılmaz, Erol (Elsevier, 2024)Using structurally layered cementitious tailings backfill (CTB) as synthetic roof material for down-cut-and-fill mining can save cost while ensuring mechanical properties. In the current investigation, polypropylene fiber ... -
Analyzing the microstructure of cemented fills adding polypropylene-glass fibers with X-ray micro-computed tomography
Li, Jiajian; Cao, Shuai; Yılmaz, Erol (Elsevier, 2023)Fiber reinforced cementitious tailings backfill (FRCTB) is progressively employed in mining industry due to its high strength/stiffness-to-weight ratio. However, the wide use of the FRCTB technique requires further study ... -
Assessment of rheological and sedimentation characteristics of fresh cemented tailings backfill slurry
Cao, Shuai; Xue, Gaili; Yılmaz, Erol; Yin, Zhenyu (Taylor & Francis Ltd, 2020)Unreasonable choice of solid content (SC) and cement-to-tailings ratio (c/t), including pipeline networking system, will lead to some pipeline problems, such as blockage, wear, and rupture. Hence, this study deals with the ... -
Bending behavior and failure mode of cemented tailings backfill composites incorporating different fibers for sustainable construction
Xue, Gaili; Yılmaz, Erol; Feng, Guorui; Cao, Shuai (Elsevier, 2021)Mechanical characteristics of cementitious materials with fiber reinforcement are different from non reinforced cementitious materials. The influence of fiber type and content, solid content, and cement to-tailings ratio ... -
Cementitious backfill with partial replacement of Cu-rich mine tailings by sand: rheological, mechanical and microstructural properties
Güner, Nihat Utku; Yılmaz, Erol; Sarı, Muhammet; Kasap, Tuğrul (MDPI, 2023)The thinning of tailings gradation during ore processing leads to a sizeable fall in the strength of cementitious paste backfill (CPB), increases operational risks, and encourages researchers to use alternative economic ... -
Characterization of early age behavior of cemented paste backfill through the magnitude and frequency spectrum of ultrasonic P-wave
Yan, Baoxu; Zhu, Wancheng; Hou, Chen; Yılmaz, Erol; Saadat, Mahdi (Elsevier Sci Ltd, 2020)Cemented paste backfill (CPB) is broadly used for underground backfilling, improving the mechanical performance through the modification of its composition and, therefore, its microstructure and characteristics. in order ... -
Characterization of macro mechanical properties and microstructures of cement-based composites prepared from fly ash, gypsum and steel slag
Li, Jiajian; Cao, Shuai; Yılmaz, Erol (MDPI, 2022)Using solid wastes (SWs) as backfilling material to fill underground mined-out areas (UMOAs) solved the environmental problems caused by SWs and reduced the backfilling cost. In this study, fly ash (FA), gypsum and steel ... -
Characterization of strength and quality of cemented mine backfill made up of lead-zinc processing tailings
Akkaya, Ufuk Gökhan; Cinku, Kenan; Yılmaz, Erol (Frontiers Media, 2021)Predicting the reactions of the backfill materials exposed to the effects of air and groundwater will eventually ensure an efficient and accurate mine fill system for sustainable mining operations. This paper reveals the ... -
A combined experimental and numerical study on the triaxial and dynamic compression behavior of cemented tailings backfill
Yang, Lei; Xu, Wenbin; Yılmaz, Erol; Wang, Qiang; Qiu, Jingping (Elsevier Sci Ltd, 2020)A full understanding of the mechanical response of cemented tailings backfill (CTB) under various loading scenarios is beneficial for mining engineering applications. This study experimentally investigates the stress - - ... -
Compressive fatigue behavior and failure evolution of additive fiber-reinforced cemented tailings composites
Li, Jiajian; Cao, Shuai; Yılmaz, Erol; Liu, Yunpeng (Springer, 2022)The ordinary cemented tailings backfill (CTB) is a cement-based composite prepared from tailings, cementitious materials, and water. In this study, a series of laboratory tests, including uniaxial compression, digital image ... -
Consolidated effect of fiber-reinforcement and concrete strength class on mechanical performance, economy and footprint of concrete for pavement use
Ali, Babar; Yılmaz, Erol; Sohail Jameel, Muhammad; Haroon, Waqas; Alyousef, Rayed (Elsevier, 2021)The advancement in the tensile strength and ductility of plain concrete can minimize the quantity of materials required per unit strength to build eco-friendly structures. This paper compares the compressive and flexural ... -
CT scanning of internal crack mechanism and strength behavior of cement-fiber-tailings matrix composites
Cao, Shuai; Yılmaz, Erol; Yin, Zhenyu; Xue, Gaili; Song, Weidong; Sun, Lijuan (Elsevier Ltd, 2021)This paper deals the relationship between compressive strength and internal crack formation (e.g., crack width and volume) of cement-fiber-tailings matrix composites (CFTMC) using an industrial computed tomography system ... -
Curing conditions effect on pore structure, compressive strength and elastic modulus of cementitious tailings backfills
Chen, Shun-man; Yılmaz, Erol; Xiang, Zheng-gui; Wang, Yi-ming (Elsevier, 2023)As a widespread application in underground metal mines, cementitious tailings backfill (CTB) has a significant implication for recycling dangerous process tailings and enhancing the safety of mining voids. The pore structure ... -
Curing stress effect on stability, microstructure, matric suction and electrical conductivity of cementitious tailings backfills
Chen, Shun-man; Yılmaz, Erol; Wang, Wei; Wang, Yi-ming (Elsevier, 2022)Cementitious tailings backfill (CTB) is a regularly used technique for most mines at home and aboard since it has a significant meaning for the recycling of total tailings and enhances the safety of underground mines. Thus, ... -
The durability of high-strength concrete containing waste tire steel fiber and Ccal fly ash
Ali, Babar; Yılmaz, Erol; Tahir, Ahmad Raza; Gamaoun, Fehmi; El Ouni, Mohamed Hechmi; Murtaza Rizvi, Syed Muhammad (Hindawi, 2021)The demands for high-strength concrete (HSC) have been increasing rapidly in the construction industry due to the requirements of thin and durable structural elements. HSC is highly brittle. Therefore, to augment its ...
