Yazar "Cao, Shuai" için listeleme
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Influence of 3D-printed polymer structures on dynamic splitting and crack propagation behavior of cementitious tailings backfill
Zhang, Huan; Cao, Shuai; Yılmaz, Erol (Elsevier, 2022)Originally developed for polymer materials, 3D printing is an encouraging technique to create versatile geometric shapes and high-precision construction elements from various materials. 3D-printed polymer structures are ... -
Influence of alkaline agents with different contents on strength features, energy dissipation and microscopic behavior of cement-based high‑sulfur tailings fill
He, Qianru; Yılmaz, Erol; Sun, Lijuan; Cao, Shuai (Elsevier, 2024)As high‑sulfur tails encompass abundant pyrite (FeS2), it is easy to form acidic/leachate waters under the action of water and air, which is opposed to cement-based tail fill (CTF)’s strength development. Therefore, the ... -
Influence of industrial solid waste as filling material on mechanical and microstructural characteristics of cementitious backfills
Li, Jiajian; Yılmaz, Erol; Cao, Shuai (Elsevier, 2021)Use of industrial solid wastes (e.g., fly ash, desulfurization gypsum, steel slag) as mine fill material not only solves the environmental risks dictated by the sustainable management of these wastes, but also reduces the ... -
Influence of solid content, cement/tailings ratio, and curing time on rheology and strength of cemented tailings backfill
Li, Jiajian; Yılmaz, Erol; Cao, Shuai (Mdpi, 2020)Understanding the flow process of cemented tailings backfill (CTB) is important for successful pumping into underground stopes. This study examines the effects of solid content (SC), cement/tailings (c/t) ratio, and curing ... -
Influence of types and contents of nano cellulose materials as reinforcement on stability performance of cementitious tailings backfill
Wang, Aiai; Cao, Shuai; Yılmaz, Erol (Elsevier, 2022)This study explores the quality of cemented tailings backfill (CTB) reinforced with diverse nano cellulose materials (NCMs) such as micro-fibrillated cellulose (MFC), hydroxylated cellulose nanofiber (CNF), and cellulose ... -
Influence of types and shapes of 3D printed polymeric lattice on ductility performance of cementitious backfill composites
Qin, Shiwen; Cao, Shuai; Yılmaz, Erol; Li, Jiajian (Elsevier, 2021)The compression properties of cementitious backfill composite (CBC) is strong, but their tension properties are weak and presents little ductility because of their low fatigue crack growth rate and resistance. Thus, proper ... -
Investigation on the flexural strength, failure pattern and microstructural characteristics of combined fibers reinforced cemented tailings backfill
Huang, Zhiqiang; Cao, Shuai; Yılmaz, Erol (Elsevier, 2021)The brittleness of the cemented tailings backfill (CTB) can easily cause collapse, which seriously threatens the safety of underground mining workers and equipment. Studies have shown that fibers can improve the ductility ... -
Mechanical, energy evolution, damage and microstructural behavior of cemented tailings-rock fill considering rock content and size effects
Qin, Hao; Cao, Shuai; Yılmaz, Erol (Elsevier, 2024)Cemented tailings-rock fill (CTRF) is crucial for engineering intention and durability of re-filled stopes in deep underground mines. The current work examined the effects of fragment contents and sizes on the mechanical, ... -
Microstructure and mechanical behavior of cemented gold/tungsten mine tailings-crushed rock backfill: Effects of rock gradation and content
Huang, Zhiqiang; Cao, Shuai; Yılmaz, Erol (Elsevier, 2023)Without appropriate and responsible waste management in place, the cursory storage of tailings and waste rocks on the surface can cause devastating damage to the planet's ecosystems. To proactively manage or abolish the ... -
Microstructure evolution and mechanical behavior of foamed cement-based tail backfills under varying fiber types and concentrations
Jiang, Tingting; Cao, Shuai; Yılmaz, Erol (Springer, 2024)Industrial solid waste (mine tailings) management has emerged as the key universal ecological challenge as a result of the unceasing creation of rising waste by-products. Employing tailings makes mine fill production ... -
Polymer shape effect on damage evolution, internal defects and crack propagation of 3D-printed polymer-based cementitious backfill
Zhang, Huan; Cao, Shuai; Yılmaz, Erol (Elsevier, 2023)The strength property and damage mode of cementitious tailings backfill (CTB) are governed by its structural characteristics in the presence of the microstructure/internal defect effects. However, this correlation is still ... -
Polypropylene fiber effect on flexural strength, toughness, deflection, failure mode and microanalysis of cementitious backfills under three-point bending conditions
Zhao, Ziyue; Cao, Shuai; Yılmaz, Erol (MDPI, 2023)Cemented tailings backfill (CTB) is continually practiced in a large number of metallic mines for re-filling underground ore extraction areas. Re-filling these areas can boost the security of mining teams during construction. ... -
Polypropylene fiber's effect on the features of combined cement-based tailing backfill: Micro- and macroscopic aspects
Li, Xihao; Cao, Shuai; Yılmaz, Erol (MDPI, 2024)In undercut-and-fill mining, backfills show weak tensile strength and poor ductility properties since they act as artificial pillars to support stope roofs. Hence, the enhancement of the stability of mining structures and ... -
Quantitative analysis of pore characteristics of nanocellulose reinforced cementitious tailings fills using 3D reconstruction of CT images
Wang, Aiai; Cao, Shuai; Yılmaz, Erol (Elsevier, 2023)This study aims at analyzing the influence of contents and types of various nanocelluloses (e.g., CNF, CNC, and MFC) and intermediate microstructure on strength/fracture features of cementitious tailings backfill (CTB). ... -
Reinforcement effect of polypropylene fiber on dynamic properties of cemented tailings backfill under SHPB impact loading
Xue, Gaili; Yılmaz, Erol; Feng, Guorui; Cao, Shuai; Sun, Lijuan (Elsevier, 2021)Dynamic loads such as blasting may lead to diverse levels of failure in cemented tailings backfill (CTB) under diverse strain rates and frequency spectral amplitudes. Hence, changes in dynamic properties of filling due to ... -
Reinforcing effects of polypropylene on energy absorption and fracturing of cement-based tailings backfill under impact loading
Li, Jiajian; Cao, Shuai; Yılmaz, Erol (Springer, 2024)Polypropylene (PP) fiber-reinforced cement-based tailings backfill (FRCTB) is a green compound material with superior crack resistance and has good prospects for application in underground mining. However, FRCTB exhibits ... -
Simulating blasting parameters for sharp inclined thin vein mines
Zou, Shengxian; Cao, Shuai; Yılmaz, Erol (Springer, 2024)Exploiting a sharply-dipping thin vein mine is a challenging task because of the troubles in ore drawing and functioning large-scale mining tools in the limited underground space. Thus, considerations are mandatory to ... -
Strength development and microstructure characteristics of artificial concrete pillar considering fiber type and content effects
Cao, Shuai; Zheng, Di; Yılmaz, Erol; Yin, ZhenYu; Xue, GaiLi; Yang, FuDou (Elsevier Sci Ltd, 2020)The artificial concrete pillar (ACP) replacement technique is a safe and reliable method to safely mine orebody pillar in room and pillar mining. in contrast to traditional ore pillar, artificial pillar has recently received ... -
Utilizing concrete pillars as an environmental mining practice in underground mines
Cao, Shuai; Xue, Gaili; Yılmaz, Erol; Yin, Zhenyu; Yang, Fudou (Elsevier Ltd, 2021)Ground control is an integral element of mine design and worker safety. The use of concrete pillars for underground mines is of paramount importance to maintaining the economic and operational security of structures. This ...