Fracturing simulation with different perforation positions at deep coal seam and roof/ floor rock — case study at the No.8 deep coal seam of a gas field in the Ordos basin by Dong XIONG, Jiayuan HE, Xinfang MA, Zhaoliang QU, Tiankui GUO, Shiyu MA

“…When perforating in the limestone, the hydraulic fractures propagate into the coal seam by passing through the interface between the coal and limestone, and they expand further into the coal seam. …”
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Porosity Evolution of the Early Cretaceous, Qamchuqa Formation in northeastern part, Iraq by Abdalratha Mohammed sahaab

“…Lower Unit (162 m) consists of dark grey, massive limestone. Middle Unit (139 m) consists of alternation of grey very coarse crystalline dolomitic limestone and yellowish green marl. …”
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Rheological benefits of biomass fly ash as filler replacement in cement-based materials by Yannick Vanhove, Joella Grâce Dossa, Jonathan Page, Chafika Djelal

“…An experimental program, based on a progressive replacement of limestone filler (LF) with biomass ash, is proposed. …”
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Performance of sulfur/steel slag composite matrix in removing nitrate from surface water with low-carbon content by PENG Xianchun, ZHENG Lili, LU Haoran, WANG Zhefeng, ZHU Zheng, LIANG Wenyan

“…XRD was used to compare the alkalinity difference between steel slag and limestone. Anaerobic bottle batch experiments were conducted to compare the denitrification performance of sulfur/steel slag and sulfur/limestone systems. …”
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Application of Clustering and Stepwise Discriminant Analysis Based on Hydrochemical Characteristics in Determining the Source of Mine Water Inrush by Weitao Liu, Jie Yu, Jianjun Shen, Qiushuang Zheng, Mengke Han, Yingying Hu, Xiangxi Meng

“…The results showed that the combination of HCA and hydrochemical analysis was more effective in screening water samples, and the 3 clustering groups could be qualified samples to represent 3 major aquifers (Taiyuan Formation limestone aquifer, Shanxi Formation sandstone aquifer and Ordovician limestone aquifer). …”
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Late Cretaceous Foraminiferal Biozonation in Selected Wells of Nasiriya Oilfield, Southern Iraq by Salah Hussain, Methaq Y. Tulub

“…The thickness of this biozone is 42 meter in well NS-7 and the lithology is brown-light brown, slightly hard, fine - medium crystalline limestone, and in parts compact white, moderately hard, fine crystalline limestone, and in well NS-8 the lithology is, brown to light brown, slightly hard, medium crystalline, porous, vuggy limestone, the thickness is 36.9 meter. …”
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New process to obtain unslaked lime through microwave hybrid heating and its fluid dynamics computational modeling by Breno Henrique Booz Carvalho Corrêa, Juan Canellas Bosch Neto, Alexandre Bôscaro França, Ana Clara Cassin Cordeiro

“… This study aimed to analyze the advantages of limestone calcination through a conventional microwave heating technique. …”
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Devonian corals of the Vosges Mountains, France by Julien Denayer

“…The Russ Conglomerate of the Bruche Unit is an olistostrome containing limestone olistoliths. Some of these limestones yielded a fossil coral fauna, though rather poorly preserved. …”
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Use of by-products for partial replacement of 3D printed concrete constituents; rheology, strength and shrinkage performance by Michail Papachristoforou, Vasilios Mitsopoulos, Maria Stefanidou

“…In this paper, fly ash, ladle furnace slag and limestone filler were utilized in concrete used as material for additive manufacturing (3D printing). …”
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Christian prisoners: fifth and sixth century inscriptions from Corinth by C. Breytenbach

“…Currently, these fragments of the limestone slabs that are still available are kept in the museum’s storerooms. …”
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POZZOLANICITY OF KIMBUNGU BASALT AS A SUBSTITUTE FOR CLINKER TO PRODUCE AN ECOLOGICAL CEMENT IN KONGO CENTRAL by KISONGA MANUKU ERIC, BONGWELE ONANGA GUY, WETSHONDO OSOMBA DOMINIQUE, ONGENDANGENDA TIENDE ALBERT, MUKEBA CIKALA LOUIS, SEKE VANGU MAX, MASAKA NKUELO DORCAS, UUCHI UMIRAMBE PARICIAN, MBUINGA BONGO FRANÇOIS, MUYONGELE GABY, KIZITO AGAMA, HOLENU MANGENDA HOLY

“…The main cause is the presence of cement plants that produce Portland cement, by heating the limestone to about 1450°C. At this process temperature, limestone releases CO₂ which is among the very harmful greenhouse gases. …”
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Laboratory Evaluation and Design of Construction and Demolition Wastes for Granular Base by Jin Yi, Chenghao Liang, Junfeng Qian, Jue Li, Yongsheng Yao

“…Meanwhile, the gradation design and the dominant aggregate size range were considered, and a physical disposal method was proposed to enhance the structural performance of the recycled material by replacing the skeleton of the recycled aggregate (RA) with high-quality limestone. The test results showed that (1) given the high absorbency and fragility of C&D wastes, its RA was not enough to provide the strength and stability required by the base; (2) the compaction characteristics of the RA are quite different from that of the limestone aggregate, but the final compaction effect is basically the same; (3) the replacement treatment proposed in this study is an effective approach to improve the performance of the recycled granular base because the breakage rate decreased by at least 28.2% and the mechanical properties increased by approximately 50% compared with that of the untreated specimen; and (4) when the limestone content reached 75%, the California bearing ratio and the resilient modulus of the graded B specimen exceeded 120% and 200 MPa, respectively, satisfying the pavement requirement in medium traffic.…”
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Distribution of Trace Elements, Sr-C Isotopes, and Sedimentary Characteristics as Paleoenvironmental Indicator of the Late Permian Linxi Formation in the Linxi Area, Eastern Inner... by Linlin Wang, Yongsheng Zhang, Enyuan Xing, Yuan Peng, Dongdong Yu

“…Based on these investigations, we conclude that the Linxi Formation is mainly composed of clastic sediments, interbedded with limestone lenses, with bioherm limestone at the top of the formation. …”
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Assessment of moisture resistance and bonding behavior of cup lump rubber modified asphalt mixture containing wax-based surfactant by Zainiah Mohd Zin, Mohd Rosli Mohd Hasan, Azura A Rashid, Muhammad Munsif Ahmad, Tracy Leh Xin Wong, Hui Yao

“…The bonding behavior of the aggregates (granite and limestone) and cup lump rubber modified asphalt binder (CMB) with wax-based surfactant (WS) was evaluated. …”
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Optical-electrical-acoustic wave multiparameter response characteristics of typical rocks in coal-bearing strata throughout the loading process by Pingsong ZHANG, Chang LIU

“…During the tests, the strain measured using distributed optic fibers for sandstone, limestone, and mudstone under critical fracturing were 933×10−6, 401×10−6, and 3790×10−6, respectively. …”
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L’aqueduc du Gier : nouvelles données sur le pont-siphon de Beaunant à Sainte-Foy-lès-Lyon (Métropole de Lyon) by David Baldassari, François Blondel, Stéphane Gaillot

“…Nonetheless, these two trenches revealed a base consisting of three courses of large limestone blocks measuring up to 2 m in height.The opus quadratum foundations of these two piers were built using limestone blocks originating from regional quarries. …”
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Effect of Weathering on Cd Mobilization in Different Sedimentary Bedrock Soils by Yongqiang Ning, Minglong Yang, Chutong Liu, Jiazhong Huang, Tianyi Wang, Yong Pang, Quanheng Li

“…Herein, we endeavored to explore the contribution of various sedimentary rocks (Quaternary sediments, mudstone, limestone, sandstone, shale, greywacke, and marl) under similar weathering conditions to the input of Cd in agricultural soils. …”
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Polychrome relief decoration in the Sanctuary of the Hathor Shrine: preliminary remarks by Paulina Staszkiewicz

“…The research led to a preliminary identification of deterioration factors, as well as types of damage to the limestone, plaster, and painting layers. Unique in this respect were the changes in color of the polychrome decoration and limestone, likely caused by high-temperature chemical reactions.…”
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Application scenarios and difficulties in network construction of digital mines in cement industry based on 5G by Huijie ZHAO, Xuezhi ZHANG, Dong XIE

“…The application and development of 5G in the field of cement mining has drawn attention.Cement factories, usually built around limestone mines, in which 5G network shows great value to be used for safe inspection by drones, UAV 3D modeling of mines, unmanned driving and remote control of mining vehicles, of excavators and other mobile services.Firstly, the main business scenarios and network requirements of 5G in cement industry mines was analyzed.Secondly, via the analysis of practical cases and test data of 5G cement mine network deployment, the difficulty of 5G network coverage in mines lies in the poor coverage rate and signal strength of 5G network in limestone mines, which are due to mountain shielding effect mined by hillside terraced fields.Finally, the difficulties of 5G mine network coverage were summarized from the aspects of supporting facilities, planning simulation and environmental dynamic change, and preliminary suggestions were given correspondingly.…”
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Pierre et carrières dans la Saintonge antique : identification, usages et diffusion by Jacques Gaillard, Egle Conforto

“…The archaeologist cannot hope to identify the solution to these enigmas if they rely solely on limestone observation, using only the naked eye. Though undoubtedly better equipped in this endeavor, the geologist may still have difficulty distinguishing between limestone from two quarries located close to one another and attributable to the same geological stage. …”
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