Proceedings of the Institution of Civil Engineers-Engineering Sustainability最新文献_第4页

Award-winning paper in 2021 2021年获奖论文

4区工程技术

Proceedings of the Institution of Civil Engineers-Engineering Sustainability Pub Date : 2023-02-01 DOI: 10.1680/jensu.2023.176.1.53

引用次数: 0

Engineering Sustainability: Referees 2022 工程可持续性:裁判员2022

4区工程技术

Proceedings of the Institution of Civil Engineers-Engineering Sustainability Pub Date : 2023-02-01 DOI: 10.1680/jensu.2023.176.1.54

引用次数: 0

Editorial: Engineering sustainability through innovative use of materials and assessment 社论:通过材料和评估的创新使用实现工程可持续性

IF 1.2 4区工程技术

Proceedings of the Institution of Civil Engineers-Engineering Sustainability Pub Date : 2023-02-01 DOI: 10.1680/jensu.2023.176.1.1

W. Pan

引用次数: 0

Resource efficiency factors in industrialised construction – a study in developing economies 工业化建筑中的资源效率因素——对发展中经济体的研究

IF 1.2 4区工程技术

Proceedings of the Institution of Civil Engineers-Engineering Sustainability Pub Date : 2023-01-26 DOI: 10.1680/jensu.22.00048

F. Kedir, D. Hall, D. Ioannidou, Thomas Rupper, Richard Boyd, A. Hollberg

{"title":"Resource efficiency factors in industrialised construction – a study in developing economies","authors":"F. Kedir, D. Hall, D. Ioannidou, Thomas Rupper, Richard Boyd, A. Hollberg","doi":"10.1680/jensu.22.00048","DOIUrl":"https://doi.org/10.1680/jensu.22.00048","url":null,"abstract":"Developing economies need to supply housing and ensure resource efficiency in the process. Industrialised construction, which increases productivity in construction, can be one means to deliver the needed housing. However, the resource efficiency of industrialised construction in developing economies is under-researched. This paper studies factors influencing resource efficiency in industrialised housing products from a perspective of value chain and environmental impact in Addis Ababa, Ethiopia; Nairobi, Kenya; and Cape Town, South Africa. Specifically, wall systems with varying degrees of industrialised construction implementation are studied. The study uncovers four main insights—first, the choice of materials influences the resource-efficiency of industrialised wall systems. However, the current value chain does not promote the adoption of new materials. Second, products used for industrialised wall systems are imported and incur added transportation-related impacts and beyond. Third, industrialised construction wall systems often use lightweight materials and have the potential for disassembly. However, end-users have reservations about such design strategies. Fourth, controlled production of wall systems reduces construction waste and increases the quality of products. Nevertheless, governments are currently promoting labour-intensive construction methods. Based on these insights, the paper concludes with recommendations, levers, and action points for stakeholders to promote resource efficiency in industrialised construction adoption.","PeriodicalId":49671,"journal":{"name":"Proceedings of the Institution of Civil Engineers-Engineering Sustainability","volume":null,"pages":null},"PeriodicalIF":1.2,"publicationDate":"2023-01-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83443607","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

Alkali activators with different cations transforming low-value volcanic ash into eco-friendly geopolymers 不同阳离子的碱活化剂将低价值火山灰转化为环保地聚合物

IF 1.2 4区工程技术

Proceedings of the Institution of Civil Engineers-Engineering Sustainability Pub Date : 2023-01-19 DOI: 10.1680/jensu.22.00078

Rongrong Zhang, Feng Li, Siqi Zhou, Yijie Su, Duanyang Liu, Q. Niu

{"title":"Alkali activators with different cations transforming low-value volcanic ash into eco-friendly geopolymers","authors":"Rongrong Zhang, Feng Li, Siqi Zhou, Yijie Su, Duanyang Liu, Q. Niu","doi":"10.1680/jensu.22.00078","DOIUrl":"https://doi.org/10.1680/jensu.22.00078","url":null,"abstract":"Geopolymers are green and sustainable cementitious materials as a possible alternative to cement due to lower energy consumption and emissions. Volcanic ash is considered a low-value material because of its worldwide distribution and huge reserves but limited applications. Beneficial to its high silica and alumina content, volcanic ash can be used as raw material to prepare geopolymers by alkali activation. However, research on volcanic ash-based geopolymers is still limited, no consensus on the optimal alkali activator is obtained, and the reaction mechanism is not yet clear. This paper aims to investigate the effect of alkali activators with different cations on the mechanical properties and microstructure of volcanic ash-based geopolymers. The flexural and compressive strength were evaluated. X-ray diffractometry, Fourier Transform Infrared Spectrometry, Scanning Electron Microscopy coupled with Energy Dispersive Spectroscopy, and 29Si Magic Angle Spinning-Nuclear Magnetic Resonance were used to characterize the microstructural properties. The results showed that the alkali activation effect of NaOH on volcanic ash was superior to that of LiOH and KOH, especially at a concentration of 8 mol/L, with 28-d flexural and compressive flexural strengths of 3.0 MPa and 28.3 MPa, respectively. Microstructural results indicated that LiOH and KOH could induce volcanic ash to undergo geopolymerization to generate loose particles as products. In contrast, the NaOH-activated geopolymers formed dense, continuous, highly polymerized silica-aluminate gels. This paper provides a proper ratio scheme for activating the volcanic ash mined from the deposit in the present study and promoting practical applications conducive to sustainable engineering development in the future.","PeriodicalId":49671,"journal":{"name":"Proceedings of the Institution of Civil Engineers-Engineering Sustainability","volume":null,"pages":null},"PeriodicalIF":1.2,"publicationDate":"2023-01-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81207326","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 sustainable concrete using rice husk ash and refractory brick waste: a systematic approach 利用稻壳灰和耐火砖废料开发可持续混凝土:系统方法

IF 1.2 4区工程技术

Proceedings of the Institution of Civil Engineers-Engineering Sustainability Pub Date : 2023-01-12 DOI: 10.1680/jensu.22.00003

S. Behera, R. Patra, Bibhuti Bhusan Mukharjee

{"title":"Development of sustainable concrete using rice husk ash and refractory brick waste: a systematic approach","authors":"S. Behera, R. Patra, Bibhuti Bhusan Mukharjee","doi":"10.1680/jensu.22.00003","DOIUrl":"https://doi.org/10.1680/jensu.22.00003","url":null,"abstract":"This current experimental research work is undertaken to assess the possibility of implementing sustainability by developing concrete mixes by utilising rice husk ash (RHA) and refractory brick waste (RBW) as a supplement to cement and coarse aggregates respectively. To fulfil the objective mentioned earlier, a systematic study comprising of evaluation of impact of RHA and RBW on concrete behaviour has been performed by carrying out different tests of strength and durability. These tests are conducted on specimens of specified mixes designed by varying the RBW as 0, 25%, and 50% and RHA levels as 0%, 10%, 15% and 20% and effects RBW and RHA are computed by comparing their behaviour with corresponding control mixes. The critical analysis of the outcome of experimental results depicts that enhancement of RBW(%) has no substantial impact on various properties of mixes. However, the incorporation of RHA (%) affects concrete behaviour by degrading concrete quality. These outcomes suggest the usage of RBW up to 10% in place of the coarse natural aggregates of concrete and 10% RHA as substitution of cement to make an eco-friendly product for field applications.","PeriodicalId":49671,"journal":{"name":"Proceedings of the Institution of Civil Engineers-Engineering Sustainability","volume":null,"pages":null},"PeriodicalIF":1.2,"publicationDate":"2023-01-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80293261","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

Investigation of the construction and demolition materials reinforced by geosynthetics 土工合成材料加固建筑与拆除材料的研究

IF 1.2 4区工程技术

Proceedings of the Institution of Civil Engineers-Engineering Sustainability Pub Date : 2023-01-04 DOI: 10.1680/jensu.22.00077

Bahadir Ok, Talha Sarıcı, A. Demir, Tugrul Talaslioglu, Abdulazim Yildiz

{"title":"Investigation of the construction and demolition materials reinforced by geosynthetics","authors":"Bahadir Ok, Talha Sarıcı, A. Demir, Tugrul Talaslioglu, Abdulazim Yildiz","doi":"10.1680/jensu.22.00077","DOIUrl":"https://doi.org/10.1680/jensu.22.00077","url":null,"abstract":"Many researchers suggest using construction and demolition materials in engineering applications (C&D) rather than virgin aggregates (VA). However, the engineering properties of the C&D tend to be poorer than those of the VA. This study presents the results of plate loading tests performed on unpaved roads with the C&D, reinforced by different types of geosynthetics on the soft subgrade. As part of these tests, the effects of some geosynthetics’ parameters such as (1) the embedment depth, (2) height and pocket opening of geocell, (3) the embedment depths and number of geogrids, (4) the distance between geogrids, and (5) the stiffness of geotextile on the bearing capacity of the unpaved road were investigated. Besides, the same plate loading test was also conducted on an unpaved road built by the VA. As a result of this study, although the performance of the C&D was determined to be less than that of the VA, it was concluded that the C&D performed well enough to be used as an alternative to the VA on unpaved roads. Besides, with a very small number of geosynthetics, it was determined that the C&D could have a better performance than that of the VA.","PeriodicalId":49671,"journal":{"name":"Proceedings of the Institution of Civil Engineers-Engineering Sustainability","volume":null,"pages":null},"PeriodicalIF":1.2,"publicationDate":"2023-01-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"72653948","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: 4

A case study on various developments of soil reinforced embankment slope stability with natural fibre additives 天然纤维加筋路堤边坡稳定性研究进展

IF 1.2 4区工程技术

Proceedings of the Institution of Civil Engineers-Engineering Sustainability Pub Date : 2023-01-03 DOI: 10.1680/jensu.22.00080

Saurabh Kumar, L. B. Roy

{"title":"A case study on various developments of soil reinforced embankment slope stability with natural fibre additives","authors":"Saurabh Kumar, L. B. Roy","doi":"10.1680/jensu.22.00080","DOIUrl":"https://doi.org/10.1680/jensu.22.00080","url":null,"abstract":"In this work, an attempt is made to study the influence of jute fibre reinforcement with the help of three case studies discussed here. The first case study described laboratory model testing and numerical analysis performed on a modelled slope that simulated an existent embankment that failed on many occasions following overnight heavy rainfall. The second case study discussed how vegetation may minimise the likelihood of soil separation and the velocity of surface run-off by decreasing surficial soil erosion. Jute geotextile (JGT) has an excellent hydrophilic characteristic that aids plant development, for this reason, it was used. The third case study developed a multi-fibre approach to traditional geotextiles to create an eco-sustainable product(s) with superior geotechnical qualities for improving the efficiency of earthen structures using soft revetments. The conclusion of these case studies expressed the novel objective for the improvement of embankments with stability analysis. This research also arose with the soil sample testing and the numerical modelling using Geo-studio. The slope model will consider being reinforced with the different rows of jute tassels on the embankment for enhanced stability and a factor of safety. Hence, the presence of jute fibre geotextile results in better performance in the stabilization of soil and also with the minimum value of deformation and maximum value of the factor of safety.","PeriodicalId":49671,"journal":{"name":"Proceedings of the Institution of Civil Engineers-Engineering Sustainability","volume":null,"pages":null},"PeriodicalIF":1.2,"publicationDate":"2023-01-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79020042","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

Sustainability in geotechnical engineering – what does it mean and why does that matter? 岩土工程中的可持续性——它意味着什么?为什么重要?

IF 1.2 4区工程技术

Proceedings of the Institution of Civil Engineers-Engineering Sustainability Pub Date : 2023-01-03 DOI: 10.1680/jensu.22.00076

L. von der Tann, D. Basu, Stefan Ritter, Paul Sverdrup Capellen, I. Størdal

{"title":"Sustainability in geotechnical engineering – what does it mean and why does that matter?","authors":"L. von der Tann, D. Basu, Stefan Ritter, Paul Sverdrup Capellen, I. Størdal","doi":"10.1680/jensu.22.00076","DOIUrl":"https://doi.org/10.1680/jensu.22.00076","url":null,"abstract":"The aspiration to act in a more sustainable manner has become a guiding principle across many aspects of life. Yet, sustainability is still often perceived as poorly defined, and there are diverse opinions on what the implications of sustainability for the everyday practice of geotechnical engineers are. On this background, this paper presents a survey conducted at the Norwegian Geotechnical Institute (NGI) in the beginning of 2021 that engaged a group of geotechnical engineers with the fundamental question as to how the concept of sustainability relates to geotechnical engineering. The Q-methodology, a mixed method approach, was applied to analyse different perspectives on sustainability in geotechnical engineering as inferred from the survey results. Three distinct perspectives were revealed that have a focus on (a) striving a balance between human action and nature, (b) mitigating adverse impacts of geotechnical projects, and (c) reducing resource use. Two of the perspectives considered the development of sustainability assessment tools as the most relevant means of working towards sustainable geotechnical practices whilst the third perspective considered multidisciplinary collaboration and research as more important. Reflection on these perspectives can help the development of future tools and strategies, provide a direction for future research, and contribute to a more sustainable geotechnical engineering practice.","PeriodicalId":49671,"journal":{"name":"Proceedings of the Institution of Civil Engineers-Engineering Sustainability","volume":null,"pages":null},"PeriodicalIF":1.2,"publicationDate":"2023-01-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82224364","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

Environmental evaluation of applications of concrete with recycled material from tyre 轮胎再生材料混凝土应用的环境评价

IF 1.2 4区工程技术

Proceedings of the Institution of Civil Engineers-Engineering Sustainability Pub Date : 2022-12-05 DOI: 10.1680/jensu.22.00083

Eduardo García, M. Pradena, A. Schwarz, A. César, Bruno F. Urbano, Carlos Medina

{"title":"Environmental evaluation of applications of concrete with recycled material from tyre","authors":"Eduardo García, M. Pradena, A. Schwarz, A. César, Bruno F. Urbano, Carlos Medina","doi":"10.1680/jensu.22.00083","DOIUrl":"https://doi.org/10.1680/jensu.22.00083","url":null,"abstract":"Alternatives for using end-of-life tyres as a component of concrete are currently being studied. Particularly, granulated rubber and steel fibres from tyres can generate relevant technical benefits in concrete. However, it is not clear what environmental benefits these alternatives can provide. Hence, a study was carried out to evaluate, from an environmental perspective, applications of concrete with recycled materials from tyres. For this purpose, a streamlined life cycle assessment was developed to compare the impact of the use of concrete with tyre materials and traditional concrete for safety barriers, railway sleepers, pavements and masonry mortar. Furthermore, the analysis was based on energy-thermal simulations, experimental work and collected studies. The results indicated that the safety barrier and railway sleeper with tyres can reduce the harmful impact by 60% and 50%, respectively. For masonry mortar and concrete pavement applications, the impact reduction was between 4% and 10%. Moreover, one case was observed where, to comply with the technical requirements, it was necessary to incorporate more material into the concrete mix. This had a significant impact on the results, which meant that no environmental benefits were generated. Therefore, the study showed that to ensure the benefits of an application it was not only required to consider the technical advantages, but also the environmental savings that contributed to sustainable construction.","PeriodicalId":49671,"journal":{"name":"Proceedings of the Institution of Civil Engineers-Engineering Sustainability","volume":null,"pages":null},"PeriodicalIF":1.2,"publicationDate":"2022-12-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86798583","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