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Journal articles on the topic 'Unconfined shear strength'

Author: Grafiati

Published: 3 June 2025

Last updated: 31 July 2025

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1

Daozheng, Qi, Gu Cong, Fu Jiajia, and Wang Yao. "Experimental study on the strength of silty soft soil in beach with polypropylene fiber reinforcement." Science Journal Innovation Technologies Transfer, no. 2020-2 (September 28, 2020): 10–17. http://dx.doi.org/10.36381/iamsti.2.2020.10-17.

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The effects of polypropylene fiber reinforcement on shear strength and unconfined compressive strength of silty soft soil in tidal flats were studied. Through shear test and unconfined compression test, Experimental study was conducted on silty soft soil of allene fiber reinforced beach with 0~0.6% different mass content and 3 ~18m different length. The failure process and mechanism of fiber reinforced soil samples were also discussed. The test results show that: Shear strength (cohesion and internal friction Angle) and unconfined compressive strength increased rapidly in the early stage with

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2

Hu, Yanran, Shaorui Sun, and Kai Li. "Study on Influence of Moisture Content on Strength and Brittle-Plastic Failure Characteristics of Xiashu Loess." Advances in Civil Engineering 2023 (April 25, 2023): 1–10. http://dx.doi.org/10.1155/2023/5919325.

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To reveal the influence of water content on the strength characteristics and brittle-plastic failure process of Xiashu loess, the direct shear test and unconfined compressive strength test of Xiashu loess with different water content were carried out, and the influence of water content on its strength characteristics and brittle-plastic failure transformation characteristics was studied. Eight kinds of Xiashu loess with different moisture contents were designed, and a direct shear test and uniaxial compression test were carried out, respectively. The results show that with the increase in wate

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3

Li, Jinpeng, Hong Xu, Lichuan Chen, et al. "Effect of Saturation Degree on Mechanical Behaviors of Shallow Unsaturated Expansive Soils." Sustainability 14, no. 21 (2022): 14617. http://dx.doi.org/10.3390/su142114617.

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In the southwest of China, there are widely distributed expansive soils. However, to save costs and manage the speed of construction, these shallow expansive soils are often filled with subgrade materials. Therefore, it is necessary to clearly understand the mechanical behaviors of unmodified shallow expansive soils. Current research on the mechanical behaviors of shallow expansive soils is mainly focused on shear and compressive strengths but rarely on the tensile strength since general tests are costly, time consuming, and difficult to conduct. Therefore, uniaxial tensile, unconfined compres

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4

Dai, Guo Liang, Abdellatif Boucheloukh, and Wei Ming Gong. "Review of Design Methods of the Ultimate Side Shear and Base Resistance for Rock-Socketed Pile." Applied Mechanics and Materials 353-356 (August 2013): 60–67. http://dx.doi.org/10.4028/www.scientific.net/amm.353-356.60.

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To determine the ultimate load capacity of drilled shaft socketed into rock under axial compression loading, it is necessary to predict both the ultimate side shear resistance and the base resistance based on field load test or/ and laboratory tests. In geotechnical engineering there are several methods proposed the relationship between rock properties (the unconfined compressive strength) and the ultimate side shears resistance and base resistance. This paper presents the review of design methods of ultimate side shear and base resistance for rock-socketed pile. These empirical functions depe

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5

Ma, Jun Qing, and You Xi Wang. "Study on the Relationship between Soil-Cement Parameters and Unconfined Compressive Strength." Advanced Materials Research 255-260 (May 2011): 4012–16. http://dx.doi.org/10.4028/www.scientific.net/amr.255-260.4012.

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This paper studies relationship between soil-cement parameters and unconfined compressive strength. The research in tensile strength and deformation modulus of soil-cement is an important basis for soil-cement failure mechanism and intensity theory. They also impact cracks, deformation and durability of cement-soil structure. Shear strength and deformation of soil-cement is important to the destruction analysis and finite element calculations. Therefore it needs to study on tensile strength, shear strength and deformation modulus of soil-cement. Based on previous experiments, the relationship

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6

Taylor, Oliver-Denzil S., Katherine E. Winters, Woodman W. Berry, Lucas A. Walshire, and Pamela G. Kinnebrew. "Near-surface soils: self-supported unconfined drained sand specimens." Canadian Geotechnical Journal 56, no. 3 (2019): 307–19. http://dx.doi.org/10.1139/cgj-2017-0261.

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Knowledge about soil behaviour in the near surface is fundamental to a broad range of military strategic research efforts. The prevailing mathematical representations of near-surface shear strength do not necessarily reflect the observed shear strengths. This paper presents an experimental procedure for testing self-supported, unconfined-drained specimens to investigate the shear strength of a poorly graded sand with the inferred unsaturated behaviour from typical effective stress expressions. The impact of soil suction is quantified from the soil–water characteristic curve obtained from a mod

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7

Stróżyk, Joanna, and Matylda Tankiewicz. "Undrained shear strength of the heavily consolidated clay." Annals of Warsaw University of Life Sciences - SGGW. Land Reclamation 45, no. 2 (2013): 207–16. http://dx.doi.org/10.2478/sggw-2013-0017.

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Abstract Undrained shear strength of the heavily consolidated clay. The undrained shear strength (cu) is considered one of the most basic parameter characterizing soils in engineering practice. The particular importance of cu is in the case of clayey soil. This parameter also is the basis for the classification of soil according to the ISO standard. The undrained shear strength usually is determined from unconfined compression test or from triaxial compression test. In the simple way it can be estimated from the fall cone penetrometer test as index parameter. In the presented work the results

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8

Zhou, Jie, Chao Ban, Huade Zhou, Junjie Ren, and Zhong Liu. "Experimental Study on the Shear Strength and Failure Mechanism of Cemented Soil–Concrete Interface." Materials 16, no. 12 (2023): 4222. http://dx.doi.org/10.3390/ma16124222.

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Cement is always used in underground construction to reinforce and improve soft clay, resulting in the formation of a cemented soil–concrete interface. It is of great importance to study interface shear strength and failure mechanisms. So, in order to figure out the failure mechanism and characteristics of a cemented soil–concrete interface, a series of large-scale shear tests of a cemented soil–concrete interface, and corresponding unconfined compressive tests and direct shear tests of cemented soil, were carried out specifically under different impact factors. A kind of bounding strength was

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9

Winters, Katherine, Woodman Berry, Greg Seimens, and Oliver-Denzil Taylor. "Failure mode transitions of unconfined granular media from dry to unsaturated to “quasi-fully” saturated states." E3S Web of Conferences 195 (2020): 03023. http://dx.doi.org/10.1051/e3sconf/202019503023.

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Recent research has shown discrepancies between the prevailing mathematical representations of near-surface shear strength and the observed shear strengths. This investigation focuses on three granular materials, i.e., 1) poorly-graded, medium-fine silica-quartz sand, 2) an engineered silica-quartz mix of 3.38-mm and 0.638-mm sub-angular particles, and 3) an angular fused quartz sand. Specimens were tested under load-controlled conditions at variable saturations in order to identify and quantify the influence of suction on the granular structures and failure modes. All three materials exhibite

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10

Abriari, Devina, Muh Natsir Abduh, and Syahrul Sariman. "Pengaruh Penggunaan Silica Fume dan Serbuk Bata Merah Terhadap Kuat Tekan Bebas dan Kuat Geser Tanah Lempung." Jurnal Penelitian Teknik Sipil Konsolidasi 2, no. 3 (2024): 287–93. https://doi.org/10.56326/jptsk.v2i3.4396.

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Clay soil has low load-bearing capacity. One method to improve this issue is by mixing chemical additives, such as silica fume and red brick powder, into the clay soil as adhesive media that can fill the soil's pores, compacting and forming a solid mass. This study aims to determine the unconfined compressive strength and shear strength of clay soil after adding silica fume and red brick powder. The method involves testing unconfined compressive and shear strength using 9% red brick powder by soil weight, along with silica fume added in varying amounts of 5%, 10%, and 15%. Three samples are pr

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11

Guan, DaShu, JiaXi Zheng, WenHao Huang, et al. "The influence of soft clay saturation characteristics on unconfined compressive strength in Guangdong-Hong Kong-Macao Greater Bay Area." E3S Web of Conferences 293 (2021): 02011. http://dx.doi.org/10.1051/e3sconf/202129302011.

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In order to study the influence of saturated characteristics of soft clay on unconfined compressive strength, the soft clay of Guangdong-Hong Kong-Macao Bay Area is taken as the research object, comparing and contrasting on unconfined compression test of saturated clay and unsaturated clay in laboratory, studying the variation law of unconfined compressive strength and sensitivity of unsaturated and saturated soft clay. The test results show that: 1. During the failure of unsaturated soft clay samples, oblique fractures appear, showing brittle shear failure, while the saturated clay samples ap

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12

Marinho, Fernando A. M., and Orlando M. Oliveira. "Unconfined shear strength of compacted unsaturated plastic soils." Proceedings of the Institution of Civil Engineers - Geotechnical Engineering 165, no. 2 (2012): 97–106. http://dx.doi.org/10.1680/geng10.00027.

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13

Hermawan, M. Iqbal, Lusmeilia Afriani, and Iswan Iswan. "Korelasi Kuat Tekan Bebas dengan Kuat Geser Langsung pada Tanah Lempung yang dicampur dengan Zeolit." Jurnal Rekayasa Sipil dan Desain 3, no. 1 (2015): 103–16. https://doi.org/10.23960/jrsdd.v3i1.430.

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This research was conducted to determine the effect between zeolite and clay of compressivestrength and shear strength. Construction founded on clay will cause some impact, such as lack ofcompressive strength and shear strength. Therefore, before the construction of structures on theclay, the clay must be stabilized first. In this research, soil stabilization using zeolite.Based on the results of this research there was an increase in the compressive strength of clay by94,5 % from 0,2975 kg/cm 2 be 0,5787 kg/cm 2 , and improving the clay cohesion of 54,17 % from0.24 kg/cm 2 be 0,36 kg/cm 2 , a

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14

Qu, Jili, and Kun Xiong. "Influences of Curing Environment on Strength Performances of Shanghai Clayey Soil Reinforced with Palm Fiber." Advances in Civil Engineering 2020 (March 17, 2020): 1–11. http://dx.doi.org/10.1155/2020/9670806.

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Owing to its environment-friendly, economically available, and sustainable property, the palm fiber was attempted to improve the quality of Shanghai clayey soil together with lime. The direct shear tests (DST), ultrasonic pulse velocity tests (UPV), and the unconfined compressive tests (UCT) have been carried out on soils mixed with palm fiber and lime under 3 curing conditions of immersion in water, cyclic wetting-drying, and air curing at a series of contents of additives. The corresponding indexes of shear strength (τ), cohesion (c), internal friction angle (φ), initial shear modulus (G0),

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15

Fam, M. A., and M. B. Dusseault. "Effect of unloading duration on unconfined compressive strength." Canadian Geotechnical Journal 36, no. 1 (1999): 166–72. http://dx.doi.org/10.1139/t98-074.

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This note examines the effect of unloading duration on unconfined compression test results. Artificial clayey specimens were prepared using the slurry consolidation technique. Extracted specimens were loaded vertically under K0 conditions, and the load was kept constant until the end of primary consolidation. Specimens were unloaded and unconfined compression tests were carried out at different times after unloading. It is observed that the longer the unloading duration, the lower the measured unconfined strength. This behavior is attributed to the presence of negative excess pore pressure tha

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16

Li, Lihua, Jiang Zhang, Henglin Xiao, Zhi Hu, and Zhijie Wang. "Experimental Investigation of Mechanical Behaviors of Fiber-Reinforced Fly Ash-Soil Mixture." Advances in Materials Science and Engineering 2019 (February 3, 2019): 1–10. http://dx.doi.org/10.1155/2019/1050536.

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In recent years, applications of different types of solid waste in fiber-reinforced soil are developed to improve the strength of soil. This study presents an experimental investigation of mechanical properties of polypropylene fiber-reinforced fly ash-soil mixtures. A series of direct shear tests and unconfined compression tests were carried out. The effects of fly ash content and fiber content on compaction characteristics, shear strength, strength parameters, and unconfined compressive strength of the reinforced soil are investigated and discussed. Results reveal that when the fly ash conte

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17

Joni, Yafettt, Andi Rumpang Yusuf, and Arman Setiawan. "Analisis Penggunaan Renolith Dan Fly Ash Terhadap Kuat Tekan Bebas Dan Kuat Geser Pada Tanah Lempung." Jurnal Penelitian Teknik Sipil Konsolidasi 2, no. 3 (2024): 294–302. https://doi.org/10.56326/jptsk.v2i3.4537.

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Clay soil has weak particle bonding and low load-bearing capacity, making it less suitable as a subgrade material in construction. One method to address this issue is stabilization by adding renolith and Fly Ash to the clay soil as stabilizing agents that can bind and fill the soil’s pores. This study aims to evaluate the impact of renolith and Fly Ash on clay soil by testing its unconfined compressive strength and shear strength. The method used involved adding 6% renolith to each sample, with Fly Ash varied at 20%, 25%, and 30%. Mixing was done at the optimum moisture content, obtained from

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18

Pan, Andrew, and Murray Grabinsky. "Mechanical Characterization of Cemented Paste Backfill." Eng 4, no. 1 (2023): 738–47. http://dx.doi.org/10.3390/eng4010044.

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Mechanical characterization is important to the design and analysis of cemented paste backfill (CPB) structures. Unconfined compressive strength (UCS) tests have been widely used owing to their relative simplicity to characterize a material’s response to unconfined compressive loading. However, the UCS represents a single strength parameter and does not fully describe the material’s strength (or failure) envelope. In this study, we analyzed UCS tests with direct shear and uniaxial tensile strength tests conducted on the same CPB materials to provide mechanical characterization of CPB under a m

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19

Muhaimin, La Ode, and Minson Simatupang. "SIFAT-SIFAT MEKANIK MATERIAL KOMPOSIT BERBAHAN DASAR FLY ASH DAN PASIR HALUS." Dinamika : Jurnal Ilmiah Teknik Mesin 12, no. 1 (2020): 1. http://dx.doi.org/10.33772/djitm.v12i1.14916.

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Soil stabilization using fly ash is an attractive alternative to be developed. Besides reducing industrial waste, it is also economical in terms of costs. With the presence of water, the lime contained in fly ash would be decomposed and undergone a cementation process and a pozolan reaction which would bind the sand grains. In this study, the effect of fly ash content and curing period on the amount of compressive strength and shear strength was observed using an unconfined compressive and direct shear test, respectively. The stress-strain relationships due to shear loads between sand without

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20

Jili, Qu, and Zhu Hao. "Modifying mechanical properties of Shanghai clayey soil with construction waste and pulverized lime." Science and Engineering of Composite Materials 27, no. 1 (2020): 163–76. http://dx.doi.org/10.1515/secm-2020-0016.

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AbstractIn the present study, the effect of construction waste and pulverized lime on the strength of Shanghai clayey soil is investigated. The unconfined compressive strength and direct shear tests have been carried out on reinforced soils with different combinations of construction waste and pulverized lime over various curing periods. The results from unconfined compressive tests show that the compressive strength increases after introduction of construction waste and pulverized lime, and the longer the curing period the higher the strength of treated soil. The results from direct shear tes

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21

Park, Sung-Sik, Seung-Wook Woo, and Nhut-Nhut Nguyen. "Shear strength of cemented sand in unconfined compression and direct shear tests." Construction and Building Materials 489 (August 2025): 142187. https://doi.org/10.1016/j.conbuildmat.2025.142187.

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22

Fung, Y. C., and Shenbaga R. Kaniraj. "COMPARISON OF THE BEHAVIOR OF FIBER AND MESH REINFORCED SOILS." Journal of Civil Engineering, Science and Technology 8, no. 2 (2017): 82–88. http://dx.doi.org/10.33736/jcest.441.2017.

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Soft soil does not have good soil properties and is not suitable for constructing pavement structures as shear strength is required to resist the shear stress developed by traffic loading. To increase shear strength in this study, lime is used as the soil stabilizing agent and fiber and mesh are used as the soil reinforcement materials. The proper amount of lime added to soil will increase the shear strength as the lime-treated soil will decrease moisture susceptibility and migration. Shear strength of the lime-treated soil can be further improved by adding reinforcement materials such as fibe

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23

Ayaz, Hassan, Jiancong Xu, Muhammad Usama Aslam, and Sohail Ahmad. "Evaluation of Petrographic and Geomechanical Properties of Inzari Formation Rocks for Their Suitability as Building Materials in the Nizampur Basin, Pakistan." Applied Sciences 14, no. 20 (2024): 9395. http://dx.doi.org/10.3390/app14209395.

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This study focuses on the petrographic and geomechanical properties of the Inzari Formation rocks in Tar Khel Village, District Swabi, Khyber Pakhtunkhwa, Pakistan, on their suitability as building materials for structures such as bridges, buildings, and roads. Five fresh samples from various areas of this formation were analyzed and identified as siliciclastic mudstone through petrographic analysis. The results of physical properties (water absorption, specific gravity, and porosity) and mechanical properties (unconfined compression strength, unconfined tensile strength, Schmidt hammer test,

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24

Hartanto, Daniel, and A. Seputra Sudianto. "Applying Multiwall Carbon Nanotube for Increasing Soil Bearing Capacity." Modern Environmental Science and Engineering 8, no. 5 (2022): 263–66. http://dx.doi.org/10.15341/mese(2333-2581)/05.08.2022/002.

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Nanotechnology is an alternative in soil improvement methods. The size of the nanoparticles is very small, ranging from 1 to 100 nm. Multiwall Nanotube is one of the nano materials in increasing the bearing capacity of the soil. According to Arabania et al. (2012), the strength of clayey sand increased by 120% by adding 3% Multiwall Carbon Nanotube. Meanwhile, according to Taha (2012), the recommended addition of Multiwall Nanotube Carbon is 0.1-0.5%. This research uses Unconfined Compression Test to determine the unconfined compressive strength (qu) and undrained shear strength (cu) of the la

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25

Yimer, Yimam Mohammed, A. Paul Makesh, and SalihaShukri Muhammed. "Prediction of undrained shear strength and correlation in between soil parameters." Journal of Physics: Conference Series 2040, no. 1 (2021): 012024. http://dx.doi.org/10.1088/1742-6596/2040/1/012024.

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Abstract Correlation of soil parameters has undeniable benefit in the determination of engineering properties of soil to solve problems in geotechnical Engineering area. The tests were conducted within geotechnical laboratory. These tested soil parameters, used in the correlation analysis are unconfined compressive strength, bulk unit weight and dry unit weight. The aim of this study is proposing a relationship in between the strength parameter with some of the index properties of soils using statistical regression analysis. The linear regression analyses have been done for prediction of uncon

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26

Chen, Dong Xia, Kai Yang, and Yan Yang. "Experimental Study on Unconfined Compression Strength of Compacted Granite Residual Soils." Advanced Materials Research 250-253 (May 2011): 2124–28. http://dx.doi.org/10.4028/www.scientific.net/amr.250-253.2124.

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Granite residual soils are often used as compacted soils in engineering structures such as pavement, embankments and backfills in Xiamen. Many geotechnical problems such as bearing capacity, lateral earth pressures and slope stability require an assessment of the shear strength of soil. Since the geotechnical properties of residual soils are impaired in contact with water, a series of unconfined compression tests are carried out on granite residual soils. Results of tests include effects of degree of compaction, moisture content, degree of saturation and cyclic wetting and drying on unconfined

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27

Bardanis, Michael, Sofia Grifiza, Dimitrios Kokoviadis, and Marianna Feuillas. "The combination of splitting tensile strength and unconfined compression tests on unsaturated soils to measure the evolution of unsaturated shear strength." E3S Web of Conferences 382 (2023): 04001. http://dx.doi.org/10.1051/e3sconf/202338204001.

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The paper presents experimental results from unconfined compression and splitting tensile tests used in combination in order to estimate the cohesion intercept of unsaturated soils. Samples of different soils in the form of slurry were subjected to various suction values using the axis translation technique in a pressure plate extractor and then these samples were removed and subjected to unconfined compression and splitting tensile tests. Mohr’ circles for the two loading conditions were drawn and the tangents plotted in order to obtain the cohesion intercept for each soil and each suction. C

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28

Zhou, J., C. Ban, C. Liu, and H. Zhou. "Study on the shear characteristics of the cemented soil-concrete interface after artificial freeze-thaw under vibration loading." IOP Conference Series: Earth and Environmental Science 1333, no. 1 (2024): 012024. http://dx.doi.org/10.1088/1755-1315/1333/1/012024.

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Abstract Underground construction has reduced underground space. Consequently, engineering construction is being done near existing structures. The artificial ground freezing (AGF) method is effective in such projects, and cement is often used to reduce frost heave and thaw settlement. A cemented soil-concrete interface is formed around underground structures. The interface serves as the primary medium for interaction between the two materials. Therefore, the shear characteristics of the cemented soil–concrete interface after artificial freeze–thaw cycles under the influence of the surrounding

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29

Chen, Dong Xia, Ming Xin Meng, and Ji Wei Luo. "Experimental Study of the Relationship between Matric Suction and Strength of Unsaturated Residual Clay in Xiamen under Different Drying-Wetting Cycle Paths." Advanced Materials Research 838-841 (November 2013): 680–84. http://dx.doi.org/10.4028/www.scientific.net/amr.838-841.680.

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To discuss the relationship between matric suction and strength under different drying-wetting cycle paths of residual clay, soil water characteristic curve was determined by the filter paper method. The shear strength, unconfined compressive strength and matric suction were obtained during desorption and adsorption at the drying and wetting cycle. The experimental results show that the matric suction of soil specimens subjected to different drying and wetting cycle paths are different although at the same water content. Contributions of internal friction angle and cohesion to shear strength a

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30

Sianturi, Novdin Manoktong, Mohd Khairul Amri Kamarudin, Dermina Roni Santika Damanik, Virgo Erlando Purba, and Deardo Samuel Saragih. "The Mechanical Behavior of Soft Soil Stabilized with Lime and Volcanic Ash." MEDIA KOMUNIKASI TEKNIK SIPIL 28, no. 1 (2022): 118–27. http://dx.doi.org/10.14710/mkts.v28i1.41963.

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The properties of soft clay can be seen from the compressive strength value through the unconfined compressive strength (UCS) test. Soft soil was less well used as the subgrade for construction. The aim is to determine the increase in the unconfined compressive strength and bearing capacity of the foundation due to the addition of lime and volcanic ash on soft soil. Soft soil has undrained shear strength < 25 kPa based on the unconfined compressive strength test. The unconfined compressive strength test has been conducted on the soil-lime mixture and soil-volcanic ash mixture of 3-12% respe

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31

Li, Rongjian, Shibin Zhang, Rongjin Li, Weishi Bai, and Lei Wang. "Experimental Study on Mechanical Behaviors of Loess Based on Two Different Modes of Oil Contamination." Geofluids 2022 (May 3, 2022): 1–11. http://dx.doi.org/10.1155/2022/6411520.

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When loess is contaminated by oil, different modes of contamination will have a certain impact on the mechanical behaviors of loess in the oil-production areas. This study is aimed at evaluating the effect of diesel oil contamination on mechanical behaviors of loess through extensive laboratory tests. Two different modes of oil contamination were proposed and applied in compression tests, direct shear tests, and unconfined compressive strength tests to study the compressibility and strength characteristics of diesel-contaminated loess. Results show that two different modes of oil contamination

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32

Klein, Katherine, and Dragana Simon. "Effect of specimen composition on the strength development in cemented paste backfill." Canadian Geotechnical Journal 43, no. 3 (2006): 310–24. http://dx.doi.org/10.1139/t06-005.

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This paper focuses on monitoring setting and strength development in cemented paste backfill (CPB). The composition of the paste is altered to study the effects of binder type and content, selected chemical admixtures (superplasticizers), mineral additives (e.g., fly ash), and pore fluid chemistry (e.g., ionic concentration and pH) on these properties. The three main techniques utilized are shear wave velocity measurements, penetration tests (e.g., Vicat needle tests), and unconfined compressive strength tests. All of these tests are sensitive to changes in the paste composition. The effect of

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33

Qu, Ji Li, Dong Xue Zhao, and Bei Bei Li. "Effect of Random Inclusion of Palm Fibers on Strength Characteristics of Shanghai Cohesive Soil." Advanced Materials Research 1096 (April 2015): 572–81. http://dx.doi.org/10.4028/www.scientific.net/amr.1096.572.

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Abstract This paper presents the effect of random inclusion of palm fibers on strength characteristics of Shanghai cohesive soil. Locally available cohesive soil (CL) is used as medium and palm fibers with three lengths (l = 6, 12 and 18 mm) are used as reinforcement. Soil is compacted with standard Proctor’s maximum density with low percentage of reinforcement (0–1% by weight of oven-dried soil). Direct shear tests, unconfined compression tests and CBR tests were conducted on un-reinforced as well as reinforced soil to investigate the strength characteristics of fiber-reinforced soil. The tes

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34

Zaini, Muhammad Syamsul Imran, Muzamir Hasan, and Wafiyuddin Md Jariman. "Strength of Kaolinitic Clay Soil Stabilized with Lime and Palm Oil Fuel Ash." CONSTRUCTION 4, no. 1 (2024): 74–81. http://dx.doi.org/10.15282/construction.v4i1.10517.

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The use of palm oil fuel ash (POFA) mixed with lime as a catalyst in soil stabilization can significantly improve the stability of problematic soils and improve their engineering properties. Problematic soils can obstruct the construction process due to its low strength and low bearing capacity. In this study, various laboratory tests were carried out to determine the engineering properties of the soil’s mixture which includes Atterberg limit, particle size distribution, compaction, and unconfined compression test. 4%, 8% and 12% POFA were mixed with 6% hydrated lime to stabilized the kaolinit

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35

Cheng, Zhuo, Gaohang Cui, Zheng Yang, et al. "Improvement of the Salinized Soil Properties of Fly Ash by Freeze-Thaw Cycles: An Impact Test Study." Sustainability 13, no. 5 (2021): 2908. http://dx.doi.org/10.3390/su13052908.

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To explore the mechanism of the microstructural change in salinized soil under freeze-thaw cycles and the strength characteristics of subgrade salinized soil improved by fly ash, an unconfined compressive test, a triaxial shear test, and a scanning electron microscopy test were carried out using salinized soil samples with different fly ash contents along the Suihua to Daqing expressway in China. The results showed that after several freeze-thaw cycles, the unconfined compressive strength, triaxial shear strength, cohesion, and internal friction angle of saline soil showed a decreasing trend.

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36

Cheng, Xuelei, Qiqi Li, Ran Hai, Shunqun Li, Cun Hui, and Zhizeng Zhang. "Study on Mechanical Properties of Cement–Jute Fiber Modified Weak Expansive Soil." Advances in Civil Engineering 2023 (December 19, 2023): 1–13. http://dx.doi.org/10.1155/2023/5955371.

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Sixteen groups of comprehensive tests were undertaken to examine the modifications in the mechanical characteristics of weak expansive soil resulting from the inclusion of a composite material comprising cement and jute fibers. The aim of the tests was to analyze the unconfined compressive strength and shear strength. The results reveal that (1) as the modified material content increased, the stress–strain curve of the modified soil progressively became steeper, with a more pronounced peak value. Under the same strain condition, the stress variation increased accordingly. After the stress reac

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Liu, Hong Mei, Lan Min Wang, and Peng Gao. "The Mechanical Properties of Cement Reinforced Loess and Pore Microstructure Characteristics." Applied Mechanics and Materials 527 (February 2014): 25–30. http://dx.doi.org/10.4028/www.scientific.net/amm.527.25.

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Natural deposit of loess has large pores and weak cementation, resulting weak shear strength and large deformation under external stress, which is the major engineering problem of the loess ground. By adding suitable amount of ordinary Portland cement to treat the loess can increase the shear strength to meet the needs of ground safety. In this study, triaxial test is carried out to evaluate improvement of the unconfined compressive strength and shear strength of loess after adding certain amount of Portland cement, also by scanning electron microscope observation and analysis of SEM images us

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Hirwo, N. T., Pratikso Pratikso, and R. Karlinasari. "Study of Mechanical Behavior of Expansive Clay due to the Addition of Nano Silica Dioxide (SiO2)." ASTONJADRO 14, no. 1 (2025): 235–43. https://doi.org/10.32832/astonjadro.v14i1.17079.

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Expansive clay which is a problematic soil is spread almost all over the world, including Indonesia. In various regions in Indonesia, expansive clay has damaged the infrastructure above, causing high maintenance costs. Expansive clay often becomes a problem when infrastructure is built on it, due to its large swell and shrink properties. Improved stabilization of expansive clay is required to improve mechanical behavior (shear strength, compressive strength and modulus of elasticity). In this study, the effect of increasing shear strength, unconfined compressive strength and modulus of elastic

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Hu, Hua, and Xiao Xu Zheng. "Experiment and Analysis on Influence of Moisture Content on the Mechanical Characteristics of Residual Soil of Granite." Advanced Materials Research 790 (September 2013): 306–9. http://dx.doi.org/10.4028/www.scientific.net/amr.790.306.

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In south China, residual soil is widely distributed and one of the most main soil in engineering construction at the coastal areas. While its mechanical characteristics are easily affected by moisture content, which is a serious threat to engineering stability and safety. In this paper, granite residual soil in a construction site of Xiamen is selected as remoulded specimens, and unconfined compressive strength test and static triaxial shear test are used, which will show the influence of moisture content (20%, 23% and 26%) on the mechanical properties of specimens. As the result is analyzed,

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Zhan, Shu Lin, Shu Sen Gao, and Jun Ying Lai. "Research about the Effect of Polypropylene Fiber on Mechanical Properties of Curing Sludge." Advanced Materials Research 250-253 (May 2011): 788–94. http://dx.doi.org/10.4028/www.scientific.net/amr.250-253.788.

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In order to study the influence of modified polypropylene (PP) fiber on the physical and mechanical properties of curing sludge, the same amount of cement and different content of polypropylene fiber were mixed into the sludge. Unconfined compressive strength tests, water content tests and shear strength tests were carried out on different specimens with different curing time. The results show that the sludge curing effect is markedly improved by the addition of the polypropylene fiber. As to the curing sludge with the same curing time, when the content of the polypropylene fiber increases, th

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Hann, Damjan. "Estimating the unconfined yield strength of coal in the case of longwall coal mining with hanging wall top caving." Materials and Geoenvironment 63, no. 2 (2016): 73–80. http://dx.doi.org/10.1515/rmzmag-2016-0006.

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Abstract This study presents an innovative approach for determining the unconfined yield strength σc during the excavation of coal from the earth’s crust by using an equipment that was developed for measuring the mechanical properties of bulk materials stored in silos. Highly productive excavation of coal with a hanging wall top caving leads to intensive deformations in the hanging wall and the broken coal can be considered as bulk material. In this research, the shear tester Johanson Hang-Up Indicizer was used to measure the unconfined yield strength of the tested samples, even though such a

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Hastuty, Ika Puji. "Comparison of the Use of Cement, Gypsum, and Limestone on the Improvement of Clay through Unconfined Compression Test." Journal of the Civil Engineering Forum 5, no. 2 (2019): 131. http://dx.doi.org/10.22146/jcef.43792.

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Soil stabilization is an effort to improve soil properties by adding additives in the soil to increase the soil strength and maintain the shear strength of the soil. There are many materials which can be used as stabilizers. The materials used in this study were cement, gypsum, and limestone, then the compressive strength values were compared by using the Unconfined Compression Test (UCT). The mixture combinations used in this study were 1% to 10% of cement, gypsum, and limestone on clay by curing for 14 days. The compressive strength value resulted from the unconfined compression test on the

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Nie, Jun, Kai Zhang, Xiangyang Fan, et al. "Study on the Mechanical Properties of Modified Sludge Soil Based on an SM-C Modifier." Materials 18, no. 3 (2025): 483. https://doi.org/10.3390/ma18030483.

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The purpose of this study is to solve the problem of the harmless treatment of dredged silt and soil extraction during road construction in lake areas. The silt in the project area is used as the research material to evaluate its engineering applicability as an improved filling material for the roadbed of the lake’s surrounding road. Through indoor pretreatment and a series of mechanical performance tests, including compaction tests, unconfined compressive strength tests (UCS), bearing ratio tests (CBR), triaxial compression tests (CU consolidated undrained), and consolidation tests, we obtain

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Thuong, Ngo Tri. "Effect of confining pressure on shear resistance of ultra-high-performance fiber reinforced concrete." Journal of Science and Technology in Civil Engineering (STCE) - NUCE 14, no. 2 (2020): 108–15. http://dx.doi.org/10.31814/stce.nuce2020-14(2)-10.

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Effect of confining pressure on the shear resistance of ultra-high-performance fiber-reinforced concrete (UHPFRCs), containing 1.5% volume content (1.5 vol.-%) of short smooth steel fiber (SS, l = 13, d = 0.2 mm) and long smooth steel fiber (LS, l = 30, d = 0.3 mm), was investigated using a new shear test method. Three levels of confining pressure were generated and maintained to the longitudinal axis of the specimen prior shear loading was applied. The test results exhibited that the shear strength of UHPFRCs was obviously sensitive to the confining pressure: the higher confining pressure pro

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Jyothi D N, H S Prasanna. "Ageing Effect On Shear Strength Of Mixed Kaolinite-Bentonite And Sand Clay Minerals." Tuijin Jishu/Journal of Propulsion Technology 44, no. 4 (2023): 1568–80. http://dx.doi.org/10.52783/tjjpt.v44.i4.1105.

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Fine-grained soils are mainly composed of kaolinite, montmorillonite, illite clay mixtures in various ratios beside sand in the natural world. Only demographically significant areas are being studied for the shear behavior of these soils, which takes a lot of time and money. Clay's basic behaviour demonstrates a lower shear strength magnitude, In order to solve this issue, extensive research was done to boost clay's shear strength. In view of increasing shear strength of clay , in this experimental study , different proportions of clay minerals were taken namely kaolinite ,bentonite and natura

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Raj J, Leon, and Appa Rao G. "Load configuration, geometry and web reinforcement effects on failure modes of sandwich deep beams." Journal of Sandwich Structures & Materials 20, no. 7 (2016): 811–30. http://dx.doi.org/10.1177/1099636216681697.

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In this article, an experimental investigation is carried out to understand the behaviour of sandwich deep beams. The shear strength, load transfer mechanism, integral action and failure modes are reported. Primary variables of this study include distribution of web reinforcement, beam geometry and type of loading. Twelve full-scale beams were tested with simply supported end conditions classifying them into two groups. Each series consists of six beams with rectangular and I-shaped cross-sectional geometry. Two types of loading, i.e. concentrated and uniformly distributed loads, were adopted

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Azadegan, Omid, Jie Li, and Hadi Jafari. "Estimation of Strength Parameters and Finite Element Simulation of Lime and Cement Stabilized Granular Soils." Advanced Materials Research 681 (April 2013): 276–80. http://dx.doi.org/10.4028/www.scientific.net/amr.681.276.

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Finite element modeling of stabilized soils requires various data obtained from comprehensive laboratory experiments. High shear strengths and expensive test procedure of lime and cement stabilized soils almost make it impossible to attain a well describing data of stabilized materials to apply in FE models in some cases; Thus, this study has considered unconfined compressive strength as a not expensive laboratory strength test and utilized estimating functions presented recently for stabilized materials to evaluate the shear strength parameters of treated materials to be used in computer simu

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Li, B. "Study on the strength influence of pile driving disturbance on the surrounding soil." E3S Web of Conferences 136 (2019): 04078. http://dx.doi.org/10.1051/e3sconf/201913604078.

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The research on the strength influence of pile driving disturbance on the surrounding soil on marine environment is very less. This article is an actual pile driving project in the sea, the soil samplings with different distance from pile was taken and some laboratory test was done, the influence of soil property when pile driving is founded. According to the experimental results, the shear stress parameter and unconfined compressive strength index of soil in the hole increased with the increase of drilling depth, and the unconfined compressive strength index of soil in the hole nearly returne

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Bonić, Zoran, Elefterija Zlatanović, Nemanja Marinković, et al. "Chemical Stabilisation of Clayey Soil—Comparison of a Variety of Additives with Respect to Their Effects on the Soil Compressive Strength and Shear Strength." Buildings 15, no. 4 (2025): 552. https://doi.org/10.3390/buildings15040552.

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The unconfined compressive strength and shear strength represent the basic mechanical properties of clayey soil. If the soil in its natural state does not have sufficiently good mechanical properties, in engineering practice, it can be improved by chemical stabilisation of the soil. The stabilisation procedure involves adding reagent(s) to the soil with the aim of permanent improvement in the mechanical properties of the soil. In this study, the individual effects of seven different chemical stabilisers (traditional and alternative) on the mechanical properties of clayey soil were analysed. In

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Rong, Baogui, Qingbo Liu, Gang Mei, and Bingwei Cheng. "Analysis of Mechanical Properties of Loess with Cement Incorporation Ratio." MATEC Web of Conferences 358 (2022): 01042. http://dx.doi.org/10.1051/matecconf/202235801042.

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Taking loess as the research object, the influence of cement content on mechanical properties of loess was studied. Firstly, the basic physical parameters of loess were obtained through laboratory physical index test, and improved by using Portland cement. Secondly, under different incorporation ratios (3%, 5%, 7%, 9%), heavy compaction test and liquid-plastic limit test were carried out respectively to obtain mechanical parameters of cement-improved loess. Finally, the shear strength parameters and compressive strength of the improved soil samples are obtained by unconsolidation undrained tri

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