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Characterization of Recycled Aggregates in Existing Pavement Base Layers 现有路面基层中再生骨料的特性
4区 工程技术
Geotechnical Testing Journal Pub Date : 2023-11-07 DOI: 10.1520/gtj20220268
Hani H. Titi, Mohammad Sooman, Habib Tabatabai
{"title":"Characterization of Recycled Aggregates in Existing Pavement Base Layers","authors":"Hani H. Titi, Mohammad Sooman, Habib Tabatabai","doi":"10.1520/gtj20220268","DOIUrl":"https://doi.org/10.1520/gtj20220268","url":null,"abstract":"","PeriodicalId":55099,"journal":{"name":"Geotechnical Testing Journal","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-11-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135431100","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Recommendations on Use of DIC in Experimental Geotechnics 关于在试验岩土工程中使用DIC的建议
4区 工程技术
Geotechnical Testing Journal Pub Date : 2023-11-02 DOI: 10.1520/gtj20220119
Kritesh Chouhan, Harsh Rai, Jitesh T. Chavda
{"title":"Recommendations on Use of DIC in Experimental Geotechnics","authors":"Kritesh Chouhan, Harsh Rai, Jitesh T. Chavda","doi":"10.1520/gtj20220119","DOIUrl":"https://doi.org/10.1520/gtj20220119","url":null,"abstract":"Image-based deformation measurement techniques, like digital image correlation (DIC), are used to measure the displacement of soil particles and thereby to investigate the behavior of geo-structure in experimental geotechnics. The precision of the measurement from the DIC technique depends on the position of the camera and light panels, the color temperature of light, size of the region of interest (RoI), type and relative density of sand, seeding ratio, type of camera, and strain rate used in experiments. In the paper, the effect of above-mentioned parameters is investigated experimentally in 1-g model tests. The studies show that the precision in DIC measurements is dependent on the position of camera and light panels, size of RoI, texture of the sand, and seeding ratio. However, the relative density of sand and strain rate do not significantly affect the results from the DIC analysis. The efficacy in the measurement of the large deformations and suitability of smartphone cameras using DIC are also addressed. Last, we developed recommendations to obtain precise results from DIC in experimental geotechnics.","PeriodicalId":55099,"journal":{"name":"Geotechnical Testing Journal","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-11-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135874279","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Carbon Sequestration Capacity of Stabilized Soft Clays with Recycled Binders 再生粘结剂稳定软粘土固碳性能研究
4区 工程技术
Geotechnical Testing Journal Pub Date : 2023-11-01 DOI: 10.1520/gtj20220221
Bruk Belay Dejenie, Ammavajjala Sesha Sai Raghuram, Leena Korkiala-Tanttu, Juha Forsman, Henry Gustavsson
{"title":"Carbon Sequestration Capacity of Stabilized Soft Clays with Recycled Binders","authors":"Bruk Belay Dejenie, Ammavajjala Sesha Sai Raghuram, Leena Korkiala-Tanttu, Juha Forsman, Henry Gustavsson","doi":"10.1520/gtj20220221","DOIUrl":"https://doi.org/10.1520/gtj20220221","url":null,"abstract":"","PeriodicalId":55099,"journal":{"name":"Geotechnical Testing Journal","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135161770","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Editorial: Special Issue on Experimental Investigations from Very Small Strains to Beyond Failure 社论：从极小应变到失效的实验研究特刊
IF 1.6 4区 工程技术
Geotechnical Testing Journal Pub Date : 2023-11-01 DOI: 10.1520/gtj20239999
António Viana da Fonseca, Cristiana Ferreira, Béatrice Baudet, E. Ibraim, Michéle Casagrande, Satoshi Nishimura
{"title":"Editorial: Special Issue on Experimental Investigations from Very Small Strains to Beyond Failure","authors":"António Viana da Fonseca, Cristiana Ferreira, Béatrice Baudet, E. Ibraim, Michéle Casagrande, Satoshi Nishimura","doi":"10.1520/gtj20239999","DOIUrl":"https://doi.org/10.1520/gtj20239999","url":null,"abstract":"","PeriodicalId":55099,"journal":{"name":"Geotechnical Testing Journal","volume":null,"pages":null},"PeriodicalIF":1.6,"publicationDate":"2023-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139303134","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Development of a Laboratory Test Apparatus for Simulating Core Drilling under High In Situ Stress 高地应力条件下模拟岩心钻取实验装置的研制
4区 工程技术
Geotechnical Testing Journal Pub Date : 2023-11-01 DOI: 10.1520/gtj20220217
Guan Rong, Zhiheng Chen, Bowen Li, Ruotao Liu, Lida Xu
{"title":"Development of a Laboratory Test Apparatus for Simulating Core Drilling under High In Situ Stress","authors":"Guan Rong, Zhiheng Chen, Bowen Li, Ruotao Liu, Lida Xu","doi":"10.1520/gtj20220217","DOIUrl":"https://doi.org/10.1520/gtj20220217","url":null,"abstract":"","PeriodicalId":55099,"journal":{"name":"Geotechnical Testing Journal","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135161775","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Editorial: 2023 Reviewer Thank Yous 社论：2023 年审稿人感谢信
IF 1.6 4区 工程技术
Geotechnical Testing Journal Pub Date : 2023-11-01 DOI: 10.1520/gtj20239998
{"title":"Editorial: 2023 Reviewer Thank Yous","authors":"","doi":"10.1520/gtj20239998","DOIUrl":"https://doi.org/10.1520/gtj20239998","url":null,"abstract":"","PeriodicalId":55099,"journal":{"name":"Geotechnical Testing Journal","volume":null,"pages":null},"PeriodicalIF":1.6,"publicationDate":"2023-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139295202","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Infrared Drying for Water Content Measurements of Soils 红外干燥法测定土壤含水量
4区 工程技术
Geotechnical Testing Journal Pub Date : 2023-10-20 DOI: 10.1520/gtj20220122
Sami Arsoy
{"title":"Infrared Drying for Water Content Measurements of Soils","authors":"Sami Arsoy","doi":"10.1520/gtj20220122","DOIUrl":"https://doi.org/10.1520/gtj20220122","url":null,"abstract":"The water content of soils is frequently needed, and its reference value is currently obtained by conventional convection ovens. Infrared (IR) ovens appear to be overlooked by the geotechnical community even though they allow for precise control over temperature, much faster heat transfer, and much better energy efficiency resulting from its inherent low thermal inertia. The European Commission’s climate action enacts several policies for greener, sustainable, and energy efficient solutions. The objective of this study is to investigate the usability and efficiency of IR ovens as the permanent replacement for conventional ovens for supporting a greener and sustainable environment. Particular emphasis is given to precision and energy efficiency through experimental comparisons. The results suggest that IR ovens offer 70 % implied energy savings over conventional ovens while resulting in comparable precision. It is, therefore, proposed to adopt IR ovens as the new and preferred standard for water content determination and to abandon conventional ovens after a transition period.","PeriodicalId":55099,"journal":{"name":"Geotechnical Testing Journal","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-10-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135513826","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Comparative Evaluation of the Long-Term Filtration Performance of Recycled Materials in Highway Drainage Systems 公路排水系统中再生材料长期过滤性能的对比评价
4区 工程技术
Geotechnical Testing Journal Pub Date : 2023-10-13 DOI: 10.1520/gtj20220279
Aysegul Bayin Sariahmetoglu, Mustafa Hatipoglu, Asli Y. Dayioglu
{"title":"Comparative Evaluation of the Long-Term Filtration Performance of Recycled Materials in Highway Drainage Systems","authors":"Aysegul Bayin Sariahmetoglu, Mustafa Hatipoglu, Asli Y. Dayioglu","doi":"10.1520/gtj20220279","DOIUrl":"https://doi.org/10.1520/gtj20220279","url":null,"abstract":"Highway drainage systems are designed to remove surface water and groundwater without deteriorating the road structure; hence, their durability is crucial to sustain the performance of highways. Filtration performance of a drainage system consisting of aggregate and geotextiles is one key parameter that needs to be carefully assessed so that clogging of the system does not result in failure. Substituting the natural aggregate in drainage systems with recycled materials would result in preservation of natural resources and employment of stockpiled recycled material, creating a mutually beneficial solution. In this study, the long-term filtration performance of three different recycled materials from different industries (i.e., two steel slag, recycled asphalt pavement, recycled concrete aggregate) has been investigated when used as filter material in drainage systems. Furthermore, two natural aggregate materials as control soils were used to compare the performance of recycled materials. A nonwoven geotextile with a low apparent opening size that represents the least favorable scenario in terms of clogging was selected as the filtration media. Long-term filtration experiments were carried out in the modified gradient ratio test setup and the hydraulic gradient ratio (GR) along with the permeability ratio (KR) were determined under different hydraulic gradients to evaluate the clogging performance. The results indicate that even under the most undesirable conditions, recycled materials exhibit a satisfactory filtration performance compared with natural aggregates, and they can be employed as aggregate material in highway drainage systems.","PeriodicalId":55099,"journal":{"name":"Geotechnical Testing Journal","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-10-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135805064","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Uniqueness of the Normal Consolidation Line for Gold Tailings 金尾矿法向固结线的独特性
4区 工程技术
Geotechnical Testing Journal Pub Date : 2023-10-06 DOI: 10.1520/gtj20230325
Yashay Narainsamy, Schalk Willem Jacobsz, Ruan Andrew Murison, Nicolaas Johannes Vermeulen
{"title":"Uniqueness of the Normal Consolidation Line for Gold Tailings","authors":"Yashay Narainsamy, Schalk Willem Jacobsz, Ruan Andrew Murison, Nicolaas Johannes Vermeulen","doi":"10.1520/gtj20230325","DOIUrl":"https://doi.org/10.1520/gtj20230325","url":null,"abstract":"Depending on the stress state, mine tailings are generally accepted to be susceptible to static liquefaction. A common method to assess the in situ stress state of tailings in relation to static liquefaction susceptibility involves the use of the state parameter. Because most tailings materials are normally consolidated (NC), this type of assessment requires knowledge about the normal consolidation line (NCL). It has been shown experimentally that the uniqueness of the NCL is vastly different for fine-grained and coarse-grained soils, with clays usually exhibiting a unique NCL and clean sands exhibiting an infinite number of parallel NCLs. Gold tailings, a sandy silt, fall between clays and clean sands, and there are limited experimental data regarding their compression behavior over a range of initial void ratios. This lack of data results in inconsistent interpretation of the uniqueness of the NCL for gold tailings in the industry. This can influence the results of designs and safety evaluations of tailings dams. In this study, a number of oedometer tests were conducted on gold tailings sourced from an active tailings dam in South Africa. Several specimens were prepared at various initial densities and were consolidated in small increments to a high effective stress. The oedometer tests were supplemented with triaxial compression tests, from which a unique critical state line was identified. Across the oedometer and triaxial tests, it was found that the behavior of the NC and overconsolidated samples was consistent with that typically observed for fine-grained soils. Therefore, for practical purposes, it appears that the gold tailings tested can be viewed in a framework with a unique NCL. No significant influence of particle crushing was noted.","PeriodicalId":55099,"journal":{"name":"Geotechnical Testing Journal","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-10-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135302605","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Experimental Wave-Based Assessment of Liquefaction Resistance for Different Degrees of Saturation 基于实验波的不同饱和度液化阻力评估
4区 工程技术
Geotechnical Testing Journal Pub Date : 2023-10-03 DOI: 10.1520/gtj20230299
Fausto Molina-Gómez, António Viana da Fonseca, Cristiana Ferreira, Bernardo Caicedo
{"title":"Experimental Wave-Based Assessment of Liquefaction Resistance for Different Degrees of Saturation","authors":"Fausto Molina-Gómez, António Viana da Fonseca, Cristiana Ferreira, Bernardo Caicedo","doi":"10.1520/gtj20230299","DOIUrl":"https://doi.org/10.1520/gtj20230299","url":null,"abstract":"","PeriodicalId":55099,"journal":{"name":"Geotechnical Testing Journal","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-10-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135648211","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
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