Log in

Relevant bibliographies by topics / Rock-cement interface / Journal articles

To see the other types of publications on this topic, follow the link: Rock-cement interface.

Journal articles on the topic 'Rock-cement interface'

Author: Grafiati

Published: 8 June 2024

Last updated: 31 July 2025

Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles

Select a source type:

Consult the top 50 journal articles for your research on the topic 'Rock-cement interface.'

Next to every source in the list of references, there is an 'Add to bibliography' button. Press on it, and we will generate automatically the bibliographic reference to the chosen work in the citation style you need: APA, MLA, Harvard, Chicago, Vancouver, etc.

You can also download the full text of the academic publication as pdf and read online its abstract whenever available in the metadata.

Browse journal articles on a wide variety of disciplines and organise your bibliography correctly.

1

Wang, Lei, Bohang Liu, Hanzhi Yang, Yintong Guo, Jing Li, and Hejuan Liu. "Experimental Study on the Compressive and Shear Mechanical Properties of Cement–Formation Interface Considering Surface Roughness and Drilling Mud Contamination." Energies 15, no. 17 (2022): 6472. http://dx.doi.org/10.3390/en15176472.

Full text

Abstract:

In a casing-cement sheath-formation system, the cement–formation interface is usually weakly cemented for the residual of drilling mud, in which a leakage path would easily form, threatening the safe operation of underground energy exploitation and storage. To evaluate the compressive and shear mechanical behavior of the cement–formation interface, cement–rock composite cylindrical specimens were prepared. Uniaxial and triaxial compression and direct shear tests were implemented. The flushing efficiency of the rock surface, compressive strength, interface incompatible deformation, parameters o

APA, Harvard, Vancouver, ISO, and other styles

2

Guo, Zixian, and Yang Li. "The Investigation of Fault Slip Mechanisms During Hydraulic Fracturing in Horizontal Shale Gas Wells." Academic Journal of Science and Technology 14, no. 1 (2025): 272–82. https://doi.org/10.54097/g8nxey96.

Full text

Abstract:

Fault slip is the primary cause of casing deformation during the hydraulic fracturing process of shale gas horizontal wells. This paper investigates the mechanism of fault slip and its correlation with the integrity of the cement sheath. By establishing a numerical model of the casing-cement sheath-reservoir rock system, the effects of fracturing fluid pressure and temperature, mechanical parameters of the cement sheath, and the wall thickness of the casing and cement sheath on the integrity of the cement sheath were calculated. The results indicate that low-temperature fracturing fluids lead

APA, Harvard, Vancouver, ISO, and other styles

3

Tian, Hui, Huajie Liu, Yuhuan Bu, Zihan Chen, and Shenglai Guo. "Effect of Composite Interface Enhancer on the Cementation Strength of Shale Formation–Cement Ring Interface." Processes 12, no. 2 (2024): 405. http://dx.doi.org/10.3390/pr12020405.

Full text

Abstract:

The cement strength between the cement and the formation is a key factor in determining the cementation sealing capacity. In the shale formation, due to the organic matter content, the cementing quality between the formation and the cement ring is poor, which affects the quality of cementing. It is easy to cause problems such as annulus pressure. To improve the quality of cementing, this paper investigates the effect of amino silane coupling agents, vinyl silane coupling agents and aluminium–zirconate coupling agents on the interface cementation of rock and cement under different conditions. M

APA, Harvard, Vancouver, ISO, and other styles

4

Jenni, Andreas, and Urs Mäder. "Reactive Transport Simulation of Low-pH Cement Interacting with Opalinus Clay Using a Dual Porosity Electrostatic Model." Minerals 11, no. 7 (2021): 664. http://dx.doi.org/10.3390/min11070664.

Full text

Abstract:

Strong chemical gradients between clay and concrete porewater lead to diffusive transport across the interface and subsequent mineral reactions in both materials. These reactions may influence clay properties such as swelling behaviour, permeability or radionuclide retention, which are relevant for the safety of a radioactive waste repository. Different cement types lead to different interactions with Opalinus Clay (OPA), which must be understood to choose the most suitable material. The consideration of anion-depleted porosity due to electrostatic repulsion in clay modelling substantially inf

APA, Harvard, Vancouver, ISO, and other styles

5

Ballivy, Gérard, Brahim Benmokrane, and Pierre Claude Aitcin. "Rôle du scellement dans les ancrages actifs scellés dans le rocher." Canadian Geotechnical Journal 23, no. 4 (1986): 481–89. http://dx.doi.org/10.1139/t86-078.

Full text

Abstract:

The dimensioning of anchor bars grouted in rock takes into account the mechanical properties of the three components steel, grout, and rock. The allowable bond strength at the rock–grout interface recommended by different national codes is generally selected according to the type of rocks and assuming an ordinary cement grout. In the present approach, the influence of the type of grout on the pull-out strength of anchor bars in a sound rock mass with mechanical properties equal or higher than the grout is considered. This experimental study shows that certain cement grouts can develop pull-out

APA, Harvard, Vancouver, ISO, and other styles

6

M.A., Attia, E. Eldamarawy M., B. Anwar M., and Radwan A.M. "Ultimate Shear Strength of Sand to Concrete Interface." International Journal of Engineering and Advanced Technology (IJEAT) 9, no. 3 (2020): 1659–65. https://doi.org/10.35940/ijeat.C5473.029320.

Full text

Abstract:

One several studies have been performed by many researchers regarding laboratory interface testing. Interface tests were performed to determine the soil to structure shearing resistance angle (δ). This angle is used for the design of geotechnical structures such as friction piles, retaining walls, culverts, etc. Also, test results are useful for determination of parameters for constitutive modeling of interface response. Correlations between sand relative density, and corresponding friction angle (Ø), and interface shearing resistance angles (δ) are obtained. In addition, (&

APA, Harvard, Vancouver, ISO, and other styles

7

Holý, Ondřej. "Evaluation of Many Load Tests of Passive Rock Bolts in the Czech Republic." GeoScience Engineering 63, no. 1 (2017): 1–7. http://dx.doi.org/10.1515/gse-2017-0001.

Full text

Abstract:

Abstract Within the research project “FR-TI4/329 Research and development - creating an application system for the design and analysis of soil and rock anchors including the development of monitoring elements”, an extensive stage of field load tests of rock bolts was carried out. The tests were conducted at 14 locations with varied rock composition. Before the initial tests, a loading stand was designed and constructed. A total of 201 pieces of tensile tests of bolts having lengths from 0.5 up to 2.5 m, a diameter of 22-32 mm, were performed. These were fully threaded rods, self-drilling rods,

APA, Harvard, Vancouver, ISO, and other styles

8

Bathija, Arpita P., and Peter J. Boul. "An Integrated Approach to Study Cement-to-Formation Bonding." Energies 15, no. 16 (2022): 5949. http://dx.doi.org/10.3390/en15165949.

Full text

Abstract:

It is crucial to assess the bond strength of the cement–formation interface while developing novel cements for efficient zonal isolation. An integrated method is presented to investigate the failure mechanism in cement and formation rock under downhole reservoir temperature and pressure conditions using a triaxial experimental setup. The acoustic emission count, strain, and velocity data aid in inferring the fracture process that led to the failure of a specimen. Although most specimens investigated exhibit the three dominant events of compaction, multi-cracking, and sliding, there are variati

APA, Harvard, Vancouver, ISO, and other styles

9

Shishkanova, V. N., M. V. Ivanko, and Andrey Yu Kozlov. "Cullet-Filled Concrete." Materials Science Forum 992 (May 2020): 73–78. http://dx.doi.org/10.4028/www.scientific.net/msf.992.73.

Full text

Abstract:

The paper considers how cullet of different particle-size distribution affects the concrete strength. Experiments have proven that large-particle cullet (1.25 cm or larger) could be used as an aggregate; the concrete strength will be on par with those of ordinary natural/crushed sand concrete. The paper proves the feasibility of injecting highly dispersed silica fume in combination with effective polycarboxylate-based superplasticizers in cullet-based concrete mixtures. Highly dispersed silica fume will positively affect the strength characteristics of concrete, as silica fume in cement rock r

APA, Harvard, Vancouver, ISO, and other styles

10

Rezzoug, A., A. Alexis, and P. Thomas. "Écoulement à surface libre dans un massif de sol soumis à la marée : comparaison théorie-expérimentation." Canadian Geotechnical Journal 36, no. 1 (1999): 13–20. http://dx.doi.org/10.1139/t98-078.

Full text

Abstract:

We analyze analytically and numerically the stress distribution along the plug-rock interface and within an axially loaded plug emplaced in a borehole in rock. Experiments show that the interface strength increases with decreasing plug radius and with increasing plug length. Axial strength decreases as a power law of plug radius. An increase in the modulus ratio (ratio of plug modulus to rock modulus) increases the interface strength, until it levels off at a ratio of about 5.0. For short plugs, the tensile stresses may reach a magnitude significant to be of concern for long-term stability of

APA, Harvard, Vancouver, ISO, and other styles

11

Akgün, Haluk, and Jaak JK Daemen. "Design implications of analytical and laboratory studies of permanent abandonment plugs." Canadian Geotechnical Journal 36, no. 1 (1999): 21–38. http://dx.doi.org/10.1139/t98-089.

Full text

Abstract:

We analyze analytically and numerically the stress distribution along the plug-rock interface and within an axially loaded plug emplaced in a borehole in rock. Experiments show that the interface strength increases with decreasing plug radius and with increasing plug length. Axial strength decreases as a power law of plug radius. An increase in the modulus ratio (ratio of plug modulus to rock modulus) increases the interface strength, until it levels off at a ratio of about 5.0. For short plugs, the tensile stresses may reach a magnitude significant to be of concern for long-term stability of

APA, Harvard, Vancouver, ISO, and other styles

12

Jiang, Ji Wei, Jun Li, Gong Hui Liu, Yan Xi, and Wai Li. "Influence of Casing Pressure Test on Seal Integrity of Cementing First Interface." Materials Science Forum 944 (January 2019): 1020–27. http://dx.doi.org/10.4028/www.scientific.net/msf.944.1020.

Full text

Abstract:

Casing pressure test is an important link of the oil and gas well cementing, but excessive casing pressure test may cause stress failure or plastically deformation of the cement sheath, and generate micro-annulus on the casing-cement sheath cemented surface, then lose seal integrity of the cement sheath. According to the basic theory of elastoplastic mechanics and considering the volume invariance of plastic strain and the influence of elastic strain on volume change, the Mohr-Coulomb criterion is used to establish the casing-cement sheath-surrounding rock combination model. The paper also der

APA, Harvard, Vancouver, ISO, and other styles

13

Li, Daihong, Xiaoyu Zhang, and Zhixiang Chen. "Study on the Hydraulic Fracturing of the Inter-Salt Shale Oil Reservoir with Multi-Interfaces." Processes 11, no. 1 (2023): 280. http://dx.doi.org/10.3390/pr11010280.

Full text

Abstract:

Hydraulic fracture morphology and propagation mode are difficult to predict in layers of the various lithological strata, which seriously affects exploitation efficiency. This paper studies the fundamental mechanical and microscopic properties of the two main interfaces in inter-salt shale reservoirs. On this basis, cement-salt combination samples with composite interfaces are prepared, and hydraulic fracturing tests are carried out under different fluid velocities, viscosity, and stress conditions. The result shows that the shale bedding and salt-shale interface are the main geological interf

APA, Harvard, Vancouver, ISO, and other styles

14

Zhang, Jianwei, Mengna Liang, Chaoqi Zhang, et al. "Study on the preparation of amphiphilic coal rock-cement interface enhancer and the interface strengthening mechanism." Alexandria Engineering Journal 114 (February 2025): 404–18. https://doi.org/10.1016/j.aej.2024.11.094.

Full text

APA, Harvard, Vancouver, ISO, and other styles

15

Jahanbakhsh, Amir, Qi Liu, Mojgan Hadi Mosleh, et al. "An Investigation into CO2–Brine–Cement–Reservoir Rock Interactions for Wellbore Integrity in CO2 Geological Storage." Energies 14, no. 16 (2021): 5033. http://dx.doi.org/10.3390/en14165033.

Full text

Abstract:

Geological storage of CO2 in saline aquifers and depleted oil and gas reservoirs can help mitigate CO2 emissions. However, CO2 leakage over a long storage period represents a potential concern. Therefore, it is critical to establish a good understanding of the interactions between CO2–brine and cement–caprock/reservoir rock to ascertain the potential for CO2 leakage. Accordingly, in this work, we prepared a unique set of composite samples to resemble the cement–reservoir rock interface. A series of experiments simulating deep wellbore environments were performed to investigate changes in chemi

APA, Harvard, Vancouver, ISO, and other styles

16

Yokoyama, Shingo, Misato Shimbashi, Daisuke Minato, Yasutaka Watanabe, Andreas Jenni, and Urs Mäder. "Alteration of Bentonite Reacted with Cementitious Materials for 5 and 10 years in the Mont Terri Rock Laboratory (CI Experiment)." Minerals 11, no. 3 (2021): 251. http://dx.doi.org/10.3390/min11030251.

Full text

Abstract:

The cement–clay interaction (CI) experiment was carried out at the Mont Terri rock laboratory to complement the current knowledge on the influence that cementitious materials have on Opalinus Clay (OPA) and bentonite (MX). Drill cores including the interface of OPA, concrete (LAC = low-alkali binder, and OPC = ordinary Portland cement), and MX, which interacted for 4.9 and 10 years, were successfully retrieved after drilling, and detailed analyses were performed to evaluate potential mineralogical changes. The saturated compacted bentonites in core samples were divided into ten slices, profili

APA, Harvard, Vancouver, ISO, and other styles

17

Wasch, Laura, and Mariëlle Koenen. "Injection of a CO2-Reactive Solution for Wellbore Annulus Leakage Remediation." Minerals 9, no. 10 (2019): 645. http://dx.doi.org/10.3390/min9100645.

Full text

Abstract:

Driven by concerns for safe storage of CO2, substantial effort has been directed on wellbore integrity simulations over the last decade. Since large scale demonstrations of CO2 storage are planned for the near-future, numerical tools predicting wellbore integrity at field scale are essential to capture the processes of potential leakage and assist in designing leakage mitigation measures. Following this need, we developed a field-scale wellbore model incorporating (1) a de-bonded interface between cement and rock, (2) buoyancy/pressure driven (microannulus) flow of brine and CO2, (3) CO2 diffu

APA, Harvard, Vancouver, ISO, and other styles

18

Zhan, Yubao, Nan Li, Hui Wang, Pengqiang Zheng, Jun Zhang, and Qihua Liu. "The Mechanism of Interface Dilatancy of Cement Mortar Rockbolts." Advances in Civil Engineering 2020 (September 8, 2020): 1–14. http://dx.doi.org/10.1155/2020/8838488.

Full text

Abstract:

In this paper, the mechanism of the interface dilatancy of cement mortar rockbolts is studied based on the phenomenon of splitting failure of samples with a high sand content in the grouting material in laboratory tests. A conceptual model of the interface layer is used to explain the dilatancy mechanism of the interface. Based on the thick-walled cylinder theory, the causes of splitting failure of the samples are analyzed. By using the numerical simulation method, the influences of different dilatancy angles of the interface layer on the interface shear stress and the radial stress are analyz

APA, Harvard, Vancouver, ISO, and other styles

19

Yang, Xinxiang, Siqi Guo, and Ergun Kuru. "A Numerical Simulation Study of the Impact of Microchannels on Fluid Flow through the Cement–Rock Interface." Applied Sciences 12, no. 9 (2022): 4766. http://dx.doi.org/10.3390/app12094766.

Full text

Abstract:

Microchannels located at the cement–rock interface can form potential pathways for formation fluid leakage in oil and gas wells. The effects of geometric shape, quantity, and the inclination angle of microchannels on the flow through cemented rock samples were explored. Finite element 3D models were established based on modified micro-CT images obtained from physical samples. The volume flow rate through different sections of cemented rock samples was extracted after the fluid flow simulations. The numerical results showed that with the presence of a single microchannel, the total volume flow

APA, Harvard, Vancouver, ISO, and other styles

20

Mei, Can, Qing Fang, Haowei Luo, Jiangang Yin, and Xudong Fu. "A Synthetic Material to Simulate Soft Rocks and Its Applications for Model Studies of Socketed Piles." Advances in Materials Science and Engineering 2017 (2017): 1–8. http://dx.doi.org/10.1155/2017/1565438.

Full text

Abstract:

A detailed manufacturing procedure of a synthetic soft rock is presented, as well as its applications on the laboratory experiments of socketed piles. With the homogeneity and isotropy of the simulated soft rock, the influence of different variables on the bearing performance could be investigated independently. The constituents, cement, gypsum powder, river sand, concrete-hardening accelerator, and water, were mixed to form the specimens. Both uniaxial and triaxial compressive tests were conducted to investigate the stress-strain behavior of the simulated soft rock. Additionally, the simulate

APA, Harvard, Vancouver, ISO, and other styles

21

Xu, Xiangqian, Weilv Wu, and Wenbin Xu. "Sulfate-Dependent Shear Behavior of Cementing Fiber-Reinforced Tailings and Rock." Minerals 10, no. 11 (2020): 1032. http://dx.doi.org/10.3390/min10111032.

Full text

Abstract:

A better understanding of the shear behavior of the interface between cemented paste backfill (CPB) and the surrounding rock is critical for constructing cost-effective, durable, and reliable CPB structures. In practice, CPBs suffer sulfate attack during their service life, and as a typical cementitious material, the CPB itself has disadvantages, such as high brittleness, easy cracking, and insufficient durability, which restrict the further popularization and application of CPB technology. Thus, in this study, direct shear tests, electrical conductivity (EC) and thermal gravity/differential t

APA, Harvard, Vancouver, ISO, and other styles

22

Zhang, Chi, Jie Wang, Weidong Song, and Jianxin Fu. "The bonding mechanism of rock and cement paste backfill interface under high temperature curing." Powder Technology 453 (March 2025): 120680. https://doi.org/10.1016/j.powtec.2025.120680.

Full text

APA, Harvard, Vancouver, ISO, and other styles

23

Alves, C., C. Figueiredo, A. Maurício, and L. Aires-Barros. "Salt weathering of limestones: susceptibility of petrographical features (SEM study)." Microscopy and Microanalysis 19, S4 (2013): 113–14. http://dx.doi.org/10.1017/s1431927613001189.

Full text

Abstract:

Salt weathering is one of the main processes affecting rock materials applied in the built environment. Scanning electron microscopy (SEM) studies can contribute to the understanding of the susceptibility of petrographic features of rocks to salt weathering.SEM studies were performed in limestones (grainstones with the commercial designations of Semi-rijo and Moca Creme and a travertine) submitted to salt weathering tests (EN 12370 using sodium sulphate solutions and cubic specimens) consisting of 15 cycles of immersion/drying followed by water washing after the 15th cycle. Fragments from smal

APA, Harvard, Vancouver, ISO, and other styles

24

Holý, Ondřej. "Results and Use of Non-Linear Behavior Between Length and Bond Friction of Fully Grouted Rock Bolts in Selected Jointed Rock Masses." GeoScience Engineering 64, no. 2 (2018): 26–39. http://dx.doi.org/10.2478/gse-2018-0010.

Full text

Abstract:

Abstract The anchor length db of rock bolts is often determined empirically by the insertion of the bond friction constant τb at the grout-rock interface. The relationship between force Fb by limit bond stress and bond length (or bond area) is their ratio. Within the same location, the anchor length can be overestimated or underestimated by usage τb = constant. In this paper, the results of load tests of passive rock bolts were analyzed across the many rocks of the Bohemian Massif using selected parameters (RQD index, GSI values, bulk density ρv, uniaxial compressive strength UCS) and their co

APA, Harvard, Vancouver, ISO, and other styles

25

Watson, C., D. Savage, J. Wilson, S. Benbow, C. Walker, and S. Norris. "The Tournemire industrial analogue: reactive-transport modelling of a cement–clay interface." Clay Minerals 48, no. 2 (2013): 167–84. http://dx.doi.org/10.1180/claymin.2013.048.2.02.

Full text

Abstract:

AbstractIn the post-closure period of a geological disposal facility for radioactive waste, leaching of cement components is likely to give rise to an alkaline plume which will be in chemical disequilibrium with the host rock (which is clay in some concepts) and other engineered barrier system materials used in the facility, such as bentonite. An industrial analogue for cement-clay interaction can be found at Tournemire, southern France, where boreholes filled with concrete and cement remained in contact with the natural mudstone for 15–20 years. The boreholes have been overcored, extracted an

APA, Harvard, Vancouver, ISO, and other styles

26

Xu, Honglin, Nian Peng, Tianshou Ma, and Bin Yang. "Investigation of Thermal Stress of Cement Sheath for Geothermal Wells during Fracturing." Energies 11, no. 10 (2018): 2581. http://dx.doi.org/10.3390/en11102581.

Full text

Abstract:

Geothermal energy development has increasingly been studied in recently decades because of its renewable and sustainable features. It can be divided into two categories: traditional geothermal (hydrothermal) systems and enhanced geothermal systems (EGS) based on the type of exploitation. The hot dry rock (HDR) in the EGS incorporates about 80% of all thermal energy, and its value is about 100–1000 times that of fossil energy. It is pivotal for geothermal wells to improve the flow conductivity of the HDR mass, enhance the communication area of natural fractures, and constitute the fracture netw

APA, Harvard, Vancouver, ISO, and other styles

27

Yang, Yang, Niannian Zhang, and Jianguo Wang. "Fracture Morphology Analysis of Frozen Red Sandstone under Impact." Shock and Vibration 2021 (December 23, 2021): 1–12. http://dx.doi.org/10.1155/2021/4388132.

Full text

Abstract:

The deformation and failure characteristics of red sandstone under subzero temperature were studied by the split Hopkinson pressure bar (SHPB) dynamic impact test. The effects of different subzero temperatures on rock strength properties, fractal dimension, and dissipated energy were analyzed combined with microfracture morphology. The reasons for rock dynamic mechanical property deterioration under lower subzero temperatures were revealed. The research shows that low subzero temperature will cause “frostbite” of red sandstone. Under high strain rate loading, the rock will quickly lose its bea

APA, Harvard, Vancouver, ISO, and other styles

28

Yang, Sheng-Qi, Yu Song, Shi-Gui Du, Yan-Hua Huang, and Zhen-Nan Zhu. "Experimental study on mechanical and permeability characteristics of rock-cement interface in ultra-low temperature environment." Construction and Building Materials 451 (November 2024): 138790. http://dx.doi.org/10.1016/j.conbuildmat.2024.138790.

Full text

APA, Harvard, Vancouver, ISO, and other styles

29

Zhang, Chunmei, Jingxuan Cai, Xiaowei Cheng, Xingguo Zhang, Xiaoyang Guo, and Yuntao Li. "Interface and crack propagation of cement-based composites with sulfonated asphalt and plasma-treated rock asphalt." Construction and Building Materials 242 (May 2020): 118161. http://dx.doi.org/10.1016/j.conbuildmat.2020.118161.

Full text

APA, Harvard, Vancouver, ISO, and other styles

30

薛, 梦雅. "Effect of Interface Humidity on the Thermal Transfer Efficiency between Rock Mass and Geothermal Well Cement." Hans Journal of Civil Engineering 14, no. 01 (2025): 111–16. https://doi.org/10.12677/hjce.2025.141014.

Full text

APA, Harvard, Vancouver, ISO, and other styles

31

Yin, Yu-shi, and Ying-fang Fan. "Experimental research on the wet bonding properties between RFRP and concrete." Advances in Structural Engineering 23, no. 5 (2019): 857–68. http://dx.doi.org/10.1177/1369433219882774.

Full text

Abstract:

In this work, an improved wet bonding method was developed for strengthening of fiber-reinforced polymer. A self-made roughened carbon fiber–reinforced polymer sheet (hereinafter referred to as RFRP sheet) was externally attached to the surface layer of a nano-kaolin-modified concrete test piece to form an RFRP–concrete wet-bonded test piece. Then, the pull-off bond test and the single shear test were performed on 32 and 30 test pieces, respectively. The performance of the wet bonding interface of RFRP–concrete in the normal and tangential directions was investigated by changing the length of

APA, Harvard, Vancouver, ISO, and other styles

32

Yu, Guangtao, Hongyuan Fu, Qianfeng Gao, Ling Zeng, Jingcheng Chen, and Chongsen Ma. "Development and Application of Flue Gas Desulfurized Gypsum and Blast-Furnace-Slag-Based Grouting Material for Cracked Silty Mudstone." Materials 17, no. 23 (2024): 5975. https://doi.org/10.3390/ma17235975.

Full text

Abstract:

The grouting technique is an efficient method for enhancing the stability of cracked slopes through the use of grouting materials. Conventional cement-based grouting materials are costly, energy-intensive, and environmentally damaging. Additionally, cement-hardening slurry is prone to cracks between the slurry and the rock. To address these issues, this study proposed an environmentally friendly grouting material composed of flue gas desulfurization gypsum (FGDG) and blast furnace slag (BFS) with sodium gluconate (SG) as the additive, especially designed for cracked silty mudstone slopes. The

APA, Harvard, Vancouver, ISO, and other styles

33

Zhou, Yangyang, and Wen Wang. "Analysis of Microscopic Mechanical Properties of Conglomerate Based on Nanoindentation Technology." Academic Journal of Science and Technology 15, no. 1 (2025): 131–39. https://doi.org/10.54097/hhehxx69.

Full text

Abstract:

In order to reveal the microstructure control mechanism of the thick conglomerate layer in the process of rock burst inoculation and occurrence in Yima mining area, the mineral composition, cementation structure and micromechanical characteristics of typical conglomerate samples were systematically analyzed based on scanning electron microscope (SEM) and nanoindentation technology. The results show that the conglomerate in this area is densely cemented and the particles are closely arranged. The cements are mainly clay minerals, and some areas are associated with calcite and iron cements. The

APA, Harvard, Vancouver, ISO, and other styles

34

Nassan, Taofik H., Carsten Freese, Dirk Baganz, et al. "Integrity Experiments for Geological Carbon Storage (GCS) in Depleted Hydrocarbon Reservoirs: Wellbore Components under Cyclic CO2 Injection Conditions." Energies 17, no. 12 (2024): 3014. http://dx.doi.org/10.3390/en17123014.

Full text

Abstract:

Integrity of wellbores and near wellbore processes are crucial issues in geological carbon storage (GCS) projects as they both define the confinement and injectivity of CO2. For the proper confinement of CO2, any flow of CO2 along the wellbore trajectory must be prevented using engineered barriers. The effect of cyclic stimuli on wellbore integrity, especially in the context of GCS projects, has been given less attention. In this study, the effect of pressure- and temperature-cycling on two types of wellbore composites (i.e., casing-cement and cement-caprock) have been investigated experimenta

APA, Harvard, Vancouver, ISO, and other styles

35

Liu, Weitao, Yueyun Qin, Xiangxi Meng, Lifu Pang, Mengke Han, and Zengmou Song. "Basic Experimental Study of Plasticity Material for Coal Rock Fracture Grouting Based on RSM-PCA Technology." Energies 14, no. 15 (2021): 4516. http://dx.doi.org/10.3390/en14154516.

Full text

Abstract:

The internal fractures in coal and rock mass are important factors affecting the safety of underground engineering such as coalbed methane exploitation, so the comprehensive properties of materials used to seal the fractures are particularly critical. In this paper, firstly, the indexes of the main factors affecting the plugging material (viscosity, bleeding rate, setting time, and strength) were analyzed. Then, the sensitivity of the materials used to seal the fractures was studied and discussed using a principal component analysis and response surface analysis (RSM-PCA). The primary conclusi

APA, Harvard, Vancouver, ISO, and other styles

36

Castelletto, N., M. Ferronato, G. Gambolati, C. Janna, and P. Teatini. "Numerical Modeling of Rock/Casing Interaction in Radioactive-Marker Boreholes of the Northern Adriatic Basin, Italy." SPE Reservoir Evaluation & Engineering 13, no. 06 (2010): 906–13. http://dx.doi.org/10.2118/135736-pa.

Full text

Abstract:

Summary The possible influence of the well casing in reservoir-deformation measurements by the radioactive-marker technique (RMT) is investigated. The issue is quite important because RMT data may be used for a most-representative estimate of the in-situ vertical rock compressibility cM (i.e., a basic parameter to predict the land settlement caused by gas-/oilfield development or the land uplift caused by underground fluid injection). A geomechanical finite-element (FE) model is implemented to evaluate the disturbance caused by the stiffness of the steel casing and the surrounding cement on th

APA, Harvard, Vancouver, ISO, and other styles

37

Xiao, Ting, Brian McPherson, Amanda Bordelon, et al. "Quantification of CO2-cement-rock interactions at the well-caprock-reservoir interface and implications for geological CO2 storage." International Journal of Greenhouse Gas Control 63 (August 2017): 126–40. http://dx.doi.org/10.1016/j.ijggc.2017.05.009.

Full text

APA, Harvard, Vancouver, ISO, and other styles

38

Fan, Jiawei, Yufang Zhang, Kun Yuan, and Wenjiao Zhou. "Experimental study on the bearing capacity and effective anchorage lengths of inclined steel grouting pipes in loess embankment slope." PLOS ONE 19, no. 12 (2024): e0316528. https://doi.org/10.1371/journal.pone.0316528.

Full text

Abstract:

Splitting grouting is widely used to reinforce unfavorable soil stratum. Inclined steel grouting pipe is a type of structure which can achieve splitting grouting in soil stratum. It has been successfully utilized in argillaceous sandstone stratum, but its application in loess stratum has rarely been studied directly. This research aims to compare and analyze the bearing capacity and effective anchorage lengths of inclined steel grouting pipes with anchorage lengths of 6 m, 9 m, and 12 m. Firstly, bearing capacity of inclined steel grouting pipe was compared with that of ordinary grouting pipe.

APA, Harvard, Vancouver, ISO, and other styles

39

Liu, Jie, Hongya Li, Yunzhou Li, et al. "Study on the Effect of Isotropic Initial Stress on the Anchoring Performance of Self-Expanding Bolts." Advances in Civil Engineering 2021 (March 11, 2021): 1–19. http://dx.doi.org/10.1155/2021/6678947.

Full text

Abstract:

In order to study the anchoring performance of a new type of self-expanding, high-strength, precompression anchoring technology with a large amount of expansion agent (ω ≥ 5) cement slurry as anchoring solids under confined surrounding rock conditions, a rock mass anchoring device and methods that simulate in situ stress are developed, and real-time monitoring of expansion stress and anchor pull-out tests are carried out. The results show that the internal interface stress has a loss effect over time, and the stress loss value shows a linear increase trend with the dosage, but the loss rate sh

APA, Harvard, Vancouver, ISO, and other styles

40

Kremieniewski, Marcin, Rafał Wiśniowski, Stanisław Stryczek, and Paweł Łopata. "Comparison of Efficient Ways of Mud Cake Removal from Casing Surface with Traditional and New Agents." Energies 14, no. 12 (2021): 3653. http://dx.doi.org/10.3390/en14123653.

Full text

Abstract:

The tightness of the casing-rock formation interface is one of the most important elements of drilling and cementing jobs. In the absence of the required tightness, there is a risk of gas migration directly to the ground, groundwater or atmosphere. In order to eliminate this type of uncontrollable and unfavorable gas flows, the casing column is sealed with cement slurry in the annular space or beyond casing. Cement slurry displaces mud present in the annular space, although the mud cake cannot be completely removed, which is required for obtaining proper binding of cement slurry with the casin

APA, Harvard, Vancouver, ISO, and other styles

41

Gaona, Xavier, Marcus Altmaier, Iuliia Androniuk, et al. "Cement as a component of the multi-barrier system: radionuclide retention in cementitious environments." Safety of Nuclear Waste Disposal 1 (November 10, 2021): 151–52. http://dx.doi.org/10.5194/sand-1-151-2021.

Full text

Abstract:

Abstract. Safety concepts regarding nuclear waste disposal in underground repositories generally rely on a combination of engineered and geological barriers, which minimize the potential release of radionuclides from the containment-providing rock zone or even their transport into the biosphere. Cementitious materials are used for conditioning of certain nuclear waste types, as components of waste containers and overpacks, as well as being constituents of structural materials at the interface between backfilling and host rock in some repository concepts. For instance, the preferred option for

APA, Harvard, Vancouver, ISO, and other styles

42

Carpenter, Chris. "Hydraulic Fracturing Fluid Interactions With Steel, Cement, and Shale Measured." Journal of Petroleum Technology 74, no. 09 (2022): 91–93. http://dx.doi.org/10.2118/0922-0091-jpt.

Full text

Abstract:

_ This article, written by JPT Technology Editor Chris Carpenter, contains highlights of paper URTeC 3722736, “The Impact of Hydraulic Fracturing Fluid on the Near-Wellbore Shale Region Involving Interactions With Steel, Cement, and Shale,” by Wei Xiong, Brandon McAdams, and Mengling Stuckman, National Energy Technology Laboratory, et al. The paper has not been peer reviewed. _ Numerous studies have been conducted on rock/fluid interactions of deep shale reservoirs exposed to hydraulic fracturing fluid (HFF). However, the effect of fluid/steel/cement components on the chemistry of the near-wel

APA, Harvard, Vancouver, ISO, and other styles

43

Wu, Bo, and Wei Huang. "Uniaxial Compression Mechanical Properties of Rock Samples in Soft and Hard Composite Strata." Advances in Materials Science and Engineering 2020 (June 23, 2020): 1–9. http://dx.doi.org/10.1155/2020/5920348.

Full text

Abstract:

In the upper soft and lower hard composite strata, it is very difficult to sample the rock and test the mechanical properties of the samples. The study of the mechanical properties of similar material samples by artificial manufacture may enable an alternative method to solve this problem. Therefore, the feasibility of artificial sample preparation and the test of mechanical properties of rock samples in the composite strata become the key to solve the study of mechanical properties of the upper soft strata and the lower hard composite strata. For this purpose, the artificial composite samples

APA, Harvard, Vancouver, ISO, and other styles

44

Long, Dayu, Yu Wang, Changhong Li, Yunfeng Wu, and Yongyue Hu. "Energy Mechanism and Acoustic Emission Characteristics in Rock-Backfill Composite Structure Specimens under Multi-Level Cyclic Loads: Cement-Tailings Ratio Effect." Minerals 14, no. 7 (2024): 665. http://dx.doi.org/10.3390/min14070665.

Full text

Abstract:

This study aimed to investigate the effects of the cement-tailings ratio (CTR) on the fatigue properties, acoustic emission (AE) activities, energy dissipation, and fracture patterns of rock-backfill composite structure (RBCS) samples. The investigation employed multi-level cyclic loading tests combined with acoustic emission monitoring and post-test CT scanning. The results indicated that the fatigue strength and fatigue lifetime of the RBCS samples initially increased and then decreased as the CTR was reduced from 1:4 to 1:12. The energy dissipation characteristics reflected the optimal ener

APA, Harvard, Vancouver, ISO, and other styles

45

Huang, Fei, Zhiwei Chen, Huiyuan Deng, and Wenbo Zhu. "Lateral Deformation Mechanisms of Piles in Coastal Regions Under Seawall Surcharge Loading and Mitigation Using Deep Cement Mixing (DCM) Piles." Buildings 15, no. 11 (2025): 1936. https://doi.org/10.3390/buildings15111936.

Full text

Abstract:

In coastal regions with thick, soft soil deposits, bridge pile foundations are susceptible to lateral displacements induced by the construction of adjacent seawalls. This study employs a three-dimensional nonlinear finite element framework to investigate the lateral deformation mechanisms of rock-socketed bridge piles under seawall surcharge loading in soft soils, considering the effects of both immediate construction and long-term consolidation. A parametric analysis is performed to evaluate the effectiveness of deep cement mixing (DCM) piles in mitigating pile displacements, focusing on key

APA, Harvard, Vancouver, ISO, and other styles

46

Cai, Zhixiang, Hui Zhang, Kerou Liu, Yufei Chen, and Qing Yu. "Experimental Investigation and Mechanism Analysis on Rock Damage by High Voltage Spark Discharge in Water: Effect of Electrical Conductivity." Energies 13, no. 20 (2020): 5432. http://dx.doi.org/10.3390/en13205432.

Full text

Abstract:

High voltage spark discharge (HVSD) could generate strong pressure waves that can be combined with a rotary drill bit to improve the penetration rate in unconventional oil and gas drilling. However, there has been little investigation of the effect of electrical conductivity on rock damage and the fragmentation mechanism caused by HVSD. Therefore, we conducted experiments to destroy cement mortar, a rock-like material, in water with five conductivity levels, from 0.5 mS/cm to 20 mS/cm. We measured the discharge parameters, such as breakdown voltage, breakdown delay time, and electrical energy

APA, Harvard, Vancouver, ISO, and other styles

47

Shu, Zhilin, Yang Liu, Yicheng Ye, Weiqi Wang, Binyu Luo, and Jinpeng Jia. "Influences of roughness and filling degree on the shear strength and damage evolution characteristics of cement-filled joints." PLOS ONE 20, no. 1 (2025): e0314229. https://doi.org/10.1371/journal.pone.0314229.

Full text

Abstract:

The shear resistance of filling joints is an important factor affecting the stability of rock joints. Pressure-shear tests of cement-filled joints were carried out. Combined with the acoustic emission (AE) technique, the effects of normal stress, roughness and filling degree on the shear strength, damage morphology and damage evolution of cement-filled joints were investigated. The results show that with the increase of roughness, the failure mode is more complicated. When the roughness is low, only the bonding surface of the interface between the filler and the joint surface is damaged, and t

APA, Harvard, Vancouver, ISO, and other styles

48

Yu, Xiaocong, Xueqi Cen, Changbin Kan, et al. "Numerical Simulation Analysis of Wellbore Integrity and Casing Damage in High-Temperature Injection and Production of Shale Oil." Processes 11, no. 11 (2023): 3053. http://dx.doi.org/10.3390/pr11113053.

Full text

Abstract:

Shale oil represents a relatively new form of unconventional oil and gas resource, and the extensive exploration and development of shale oil resources carry significant implications for China’s oil and gas supply and demand dynamics. At present, within the realm of low-maturity shale oil extraction technologies, the reservoir must be subjected to elevated temperatures ranging between 400 to 60 °C. Prolonged exposure of wellbores to such high temperatures can result in a substantial decrease in cement strength, the formation of microcracks due to cement cracking, and damage stemming from therm

APA, Harvard, Vancouver, ISO, and other styles

49

Wang, Longni, Hongyuan Fu, Qianfeng Gao, et al. "Engineering Performance and Mechanism of Alkali-Activated Ground Granulated Blast Furnace Slag–Zeolite Powder Grouting Materials." Applied Sciences 15, no. 6 (2025): 3345. https://doi.org/10.3390/app15063345.

Full text

Abstract:

Geopolymer-based grouting materials often have a higher early strength, better durability, and lower environmental impact than those of traditional cement-based grouts. However, existing geopolymer grouts face common challenges such as rapid setting and low compatibility with treated substrates. This study develops a new grouting material using industrial byproducts to overcome these limitations while optimizing performance for reinforcing silty mudstone slopes. The base materials used were ground granulated blast furnace slag (GGBFS) and zeolite powder, with calcium lignosulphonate (CL) servi

APA, Harvard, Vancouver, ISO, and other styles

50

Anderson, Noah T., Clinton A. Cowan, and Kristin D. Bergmann. "A case for the growth of ancient ooids within the sediment pile." Journal of Sedimentary Research 90, no. 8 (2020): 843–54. http://dx.doi.org/10.2110/jsr.2020.45.

Full text

Abstract:

ABSTRACT In modern ooid-forming environments in the Caribbean, aerobic respiration of organic matter below the sediment–water interface drives an increase in pCO2 and a corresponding decrease in carbonate saturation state (Ω) that creates shallow sediment porewater that is neutral or slightly caustic to carbonate. The locus of ooid growth, therefore, is presumed to be in the water column during suspension, where supersaturation with respect to calcium carbonate is the norm. In the past, however, during conditions of low aqueous O2, high Ω, or low organic-matter input, the shallow sub-sediment

APA, Harvard, Vancouver, ISO, and other styles

We offer discounts on all premium plans for authors whose works are included in thematic literature selections. Contact us to get a unique promo code!