Showing 161 - 180 results of 519 for search '"limestone"', query time: 0.07s Refine Results
  1. 161

    Christian prisoners: fifth and sixth century inscriptions from Corinth by C. Breytenbach

    Published 2016-06-01
    “…Currently, these fragments of the limestone slabs that are still available are kept in the museum’s storerooms. …”
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  2. 162

    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

    Published 2023-09-01
    “…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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  3. 163

    Laboratory Evaluation and Design of Construction and Demolition Wastes for Granular Base by Jin Yi, Chenghao Liang, Junfeng Qian, Jue Li, Yongsheng Yao

    Published 2020-01-01
    “…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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  4. 164

    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

    Published 2020-01-01
    “…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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  5. 165

    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

    Published 2025-01-01
    “…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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  6. 166

    Optical-electrical-acoustic wave multiparameter response characteristics of typical rocks in coal-bearing strata throughout the loading process by Pingsong ZHANG, Chang LIU

    Published 2025-01-01
    “…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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  7. 167

    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

    Published 2023-12-01
    “…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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  8. 168

    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

    Published 2025-01-01
    “…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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  9. 169

    Study on the Control Effect of Geological Structure on Water-bearing System and the Identification of Water Inrush Source by WU Zhigao, MA Wenhao, ZHOU Anchao, WANG Xiaoqiang, CAO Kuanjian, SHANG Peilin

    Published 2024-11-01
    “…Controlled by the karst fissure water flow system of Taiyuan Formation in the mine field, the Wangtao River flows through the K2 limestone aquifer of Taiyuan Formation under the riverbed, and flows along the layer to the low-lying structure of the mine field depression, resulting in water inrush at the K2 limestone karst fissure of the main inclined shaft. …”
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  10. 170

    Pierre et carrières dans la Saintonge antique : identification, usages et diffusion by Jacques Gaillard, Egle Conforto

    Published 2022-12-01
    “…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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  11. 171

    Polychrome relief decoration in the Sanctuary of the Hathor Shrine: preliminary remarks by Paulina Staszkiewicz

    Published 2024-10-01
    “…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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  12. 172

    Caves and Fractured Zones Investigation Using 2D Electrical Resistivity Imaging in an Engineering Site, Haqlaniyah, Western Iraq by Sameer Abbas, Waleed Al-Mahemmdi, Hussein Al-Saady

    Published 2024-11-01
    “…The results show relatively high resistivity values interpreted as massive limestone with cavities and relatively low resistivity values interpreted as fractured limestone with clay or moisture content. …”
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  13. 173

    Application scenarios and difficulties in network construction of digital mines in cement industry based on 5G by Huijie ZHAO, Xuezhi ZHANG, Dong XIE

    Published 2021-07-01
    “…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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  14. 174

    Habitat diversity, ecology, and change assessment in the geoparc M’goun in High Atlas Mountains of Morocco by Youssef Gharnit, Aboubakre Outourakhte, Abdelaziz Moujane, Hassan Ikhmerdi, Aziz Hasib, Abdelali Boulli

    Published 2024-11-01
    “…Juniperus thurifera (1.33%) and xerophyte cushions (6.84%) thrive at high elevations in limestone terrains within subhumid cold bioclimate variants. …”
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  15. 175

    The impact of coarse aggregate mineral compositions on skid resistance performance of asphalt pavement: A comprehensive study. by Chen Zhang, Lihao Zeng, Huimin Wang, Xin Qu

    Published 2024-01-01
    “…Additionally, macroscopic adhesive friction coefficients between polished surfaces of three types of rock slabs (basalt, limestone, granite) and rubber were determined using a pendulum friction tester. …”
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  16. 176

    Study on Nonlinear Damage Creep Model for Rocks under Cyclic Loading and Unloading by Liangliang Zhang, Xiaojian Wang

    Published 2021-01-01
    “…Finally, the step cyclic loading and unloading creep test data for lherzolite and limestone are used to verify the rationality and feasibility of the nonlinear damage creep model. …”
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  17. 177

    Mechanical Properties of Fiber-Reinforced Concrete Using Composite Binders by Roman Fediuk, Aleksey Smoliakov, Aleksandr Muraviov

    Published 2017-01-01
    “…The effect of the “cement, fly ash, and limestone” composite binders obtained by joint grinding with superplasticizer in the varioplanetary mill on the process of structure formation was studied. …”
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  18. 178

    Fatigue Performance of Recycled Hot Mix Asphalt: A Laboratory Study by Marco Pasetto, Nicola Baldo

    Published 2017-01-01
    “…Based on the gyratory compaction and the indirect tensile strength test, the mix design procedure has optimized nine different mixes, considering both conventional limestone and Reclaimed Asphalt Pavement (RAP), the latter used at different quantities, up to 40% by weight of the aggregate. …”
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  19. 179

    Catastrophe Mechanism of Stress-Fissure Coupling Field in Mining Close Distance Seams in Southwest China by Suo Jie, Li Zhen-hua, Huang Cun-han, Cao Zheng-zheng, Xu You-lin, Chen Zu-guo

    Published 2021-01-01
    “…When the working face advances to 180 m in 4# coal seam in a similar experiment, the overlying rock breaks to the central base plate of Yulongshan limestone, and the conductive fractures run through the Changxing limestone karst cave and Yulongshan limestone karst cave. …”
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  20. 180

    Effect of aggregate type on moisture susceptibility of modified cold recycled mix asphalt: evaluation by mechanical tests and Surface Free Energy method by Hassan Latifi, Nahid Amini

    Published 2020-04-01
    “…Also, effect of using granite, limestone and recycled asphalt pavement (RAP) aggregates was evaluated. …”
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