Low-carbon Materials and Green Construction最新文献

Study on carbon emissions towards flange connection joints of assembled steel structures 关于装配式钢结构法兰连接接头碳排放的研究

Low-carbon Materials and Green Construction Pub Date : 2024-05-20 DOI: 10.1007/s44242-024-00036-8

Jinyang Guo, Yanxia Zhang, M. Zheng, Xi Zhao, Bing Wu

引用次数: 0

Elastic surface wave attenuation in layered soil by metastructures 层状土壤中的弹性面波衰减与转移结构

Low-carbon Materials and Green Construction Pub Date : 2024-04-15 DOI: 10.1007/s44242-024-00037-7

Xuan Zheng, Yabin Jin, Runcheng Cai, T. Rabczuk, Hehua Zhu, X. Zhuang

引用次数: 0

Magnesium cements and their carbonation curing: a state-of-the-art review 镁水泥及其碳化固化：最新进展综述

Low-carbon Materials and Green Construction Pub Date : 2024-02-18 DOI: 10.1007/s44242-023-00033-3

M. A. Haque, Jian-Guo Dai, Xiao-Ling Zhao

引用次数: 0

Low-cycle fatigue testing and microstructure of high strength-ductility structural steel materials 高强度-高韧性结构钢材料的低循环疲劳测试和微观结构

Low-carbon Materials and Green Construction Pub Date : 2024-01-11 DOI: 10.1007/s44242-023-00032-4

Yongtao Bai, Qingyu Gong, Xuhong Zhou, Nazim Babacan, Shaoyu Guan

引用次数: 0

Recycling alkali activated slag into artificial aggregate: Influence of particle size distribution of the starting material on granulation 将碱活性矿渣回收制成人工骨料：原材料粒度分布对造粒的影响

Low-carbon Materials and Green Construction Pub Date : 2023-11-29 DOI: 10.1007/s44242-023-00031-5

Kalle Kursula, M. Illikainen, Priyadharshini Perumal

引用次数: 0

Suitability of marble powders in production of high strength concrete 大理石粉在高强度混凝土生产中的适用性

Low-carbon Materials and Green Construction Pub Date : 2023-11-07 DOI: 10.1007/s44242-023-00029-z

Syed Afzal Basha, Faiz Uddin Ahmed Shaikh

{"title":"Suitability of marble powders in production of high strength concrete","authors":"Syed Afzal Basha, Faiz Uddin Ahmed Shaikh","doi":"10.1007/s44242-023-00029-z","DOIUrl":"https://doi.org/10.1007/s44242-023-00029-z","url":null,"abstract":"Abstract A tremendous amount of non-biodegradable waste is created during mining and processing tasks of layered stones like marble. Over time, this has become a global problem because it harms the environment in multiple ways. Hence, it is necessary to find an alternate way to securely dispose and reuse marble wastes. The construction sector is one of the significant consumers of natural resources for the production of material binders and aggregates. As a result, in recent years, number of researchers have carried out studies in which various kinds of marble waste have been incorporated into concrete with the intention of substituting either cement or aggregates or both. This paper presents the effect of two locally sourced waste marble powders Kadapa marble powder (KMP) and Bethamcherla marble powder (BMP) as partial replacement of cement on mechanical and durability properties of high strength concrete (HSC). Their effect at different replacement levels in HSC is evaluated in compressive, indirect tensile and flexural strengths, elastic modulus, chloride penetration resistance and freeze–thaw durability properties. Micro-structural investigation is also conducted to evaluate their impact on the matrix of HSC containing waste marble powders as additional cementitious materials. Results show that the HSC consisting of KMP and BMP content of 10% and 15%, respectively exhibited higher mechanical and durability properties than the control HSC. Micro-structural investigation also supports this finding. It can be concluded that the use of marble powders as partial replacement of cement does not have any adverse impact on the properties of concrete. The use of KMP and BMP reduces the vast amount of energy required to produce cement, cost and time with reduction in environmental hazards.","PeriodicalId":218724,"journal":{"name":"Low-carbon Materials and Green Construction","volume":"204 2","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-11-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135475646","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Influence of additives on strength enhancement and greenhouse gas emissions of pre-cast lime-based construction products 添加剂对石灰基预制建筑产品强度增强及温室气体排放的影响

Low-carbon Materials and Green Construction Pub Date : 2023-10-30 DOI: 10.1007/s44242-023-00026-2

F. J. O’Flaherty, F. J. Khalaf, V. Starinieri

{"title":"Influence of additives on strength enhancement and greenhouse gas emissions of pre-cast lime-based construction products","authors":"F. J. O’Flaherty, F. J. Khalaf, V. Starinieri","doi":"10.1007/s44242-023-00026-2","DOIUrl":"https://doi.org/10.1007/s44242-023-00026-2","url":null,"abstract":"Abstract Strength properties of laboratory scale lime-based samples enhanced with additives such as nanomaterials (nanofibrillated cellulose, nanosilica, nanoclay, expanded graphite), hemp & glass fibres, hemp shiv and polyvinyl acetate (PVAc) are determined. Samples were cured for 26 days in air at 20˚C / 60% RH after casting before being oven dried for a further two days at 50˚C (28 days total). Results show that the nanomaterials on their own had a mixed effect on the strength although nSiO 2 as a solo additive performed exceptionally well. The combination of fibres in conjunction with PVAc also greatly enhanced the strength due to increased bond between the fibres and the matrix. In addition, Greenhouse Gas emissions (GHG, kgCO 2 eq) of an arbitrary block was determined for all composites and compared to the GHG of a commonly used lightweight aerated concrete block. Comparison of the normalised compressive strengths to the different loading conditions as outlined in BS EN 8103 shows that a more widespread use of pre-cast lime composites is possible and without unduly increasing GHG emissions.","PeriodicalId":218724,"journal":{"name":"Low-carbon Materials and Green Construction","volume":"39 2","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136067925","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

State of the art review on the production and bond behaviour of reinforced geopolymer concrete 钢筋地聚合物混凝土的制备及其粘结性能研究进展

Low-carbon Materials and Green Construction Pub Date : 2023-10-20 DOI: 10.1007/s44242-023-00027-1

Yifei Cui, Weixia Ai, Biruk Hailu Tekle, Menghua Liu, Shihao Qu, Peng Zhang

{"title":"State of the art review on the production and bond behaviour of reinforced geopolymer concrete","authors":"Yifei Cui, Weixia Ai, Biruk Hailu Tekle, Menghua Liu, Shihao Qu, Peng Zhang","doi":"10.1007/s44242-023-00027-1","DOIUrl":"https://doi.org/10.1007/s44242-023-00027-1","url":null,"abstract":"Abstract Geopolymer is produced through the polymerization of active aluminosilicate material with an alkaline activator, leading to the formation of a green, inorganic polymer binder. Geopolymer concrete (GPC) has become a promising low-carbon alternative to traditional Portland cement-based concrete (OPC). GPC-bonded reinforcing bars offer a promising alternative for concrete structures, boasting excellent geopolymer binder/reinforcement bonding and superior corrosion and high-temperature resistance compared to Portland cement. However, due to differences in the production process of GPC, there are distinct engineering property variations, including bonding characteristics. This literature review provides an examination of the manufacturing procedures of GPC, encompassing source materials, mix design, curing regimes, and other factors directly influencing concrete properties. Additionally, it delves into the bond mechanism, bond tests, and corresponding results that represent the bond characteristics. The main conclusions are that GPC generally has superior mechanical properties and bond performance compared to ordinary Portland cement concrete (OPC). However, proper standardization is needed for its production and performance tests to limit the contradictory results in the lab and on site.","PeriodicalId":218724,"journal":{"name":"Low-carbon Materials and Green Construction","volume":"19 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135617006","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Effect of recycled powder on the yield stress of cement paste with varied superplasticizers 再生粉对不同高效减水剂水泥浆体屈服应力的影响

Low-carbon Materials and Green Construction Pub Date : 2023-09-25 DOI: 10.1007/s44242-023-00022-6

Zhen Li, Cheng Yu, Min Qiao, Weixiao Xie, Jinyao Yu

{"title":"Effect of recycled powder on the yield stress of cement paste with varied superplasticizers","authors":"Zhen Li, Cheng Yu, Min Qiao, Weixiao Xie, Jinyao Yu","doi":"10.1007/s44242-023-00022-6","DOIUrl":"https://doi.org/10.1007/s44242-023-00022-6","url":null,"abstract":"Abstract The influence of superplasticizer on the yield stress of cement pastes with recycled powder (RP) was examined in the study. Four superplasticizers were used to obtain the similar fluidity by adjusting the dosage. The results show that the 10% RP decreases the yield stress of paste compared to the reference paste at the same fluidity, but 20% and 30% RP increases the yield stress, ranging from 11 to 599%. The superplasticizer with adsorptive group of phosphate-type minimizes the yield stress of paste than that of polycarboxylate -type, but it made a significant increment in yield stress as the incorporating of RP increased. Besides, the polycarboxylate superplasticizer with the higher molecular weight of side chain and charge density led to lower yield stress. Based on the Yodel model, the yield stress of paste with RP was analyzed by the polymer adsorption and particle packing density of particles to reveal the influence of RP with different superplasticizers on the colloidal interaction and contact network among the particles. The packing density of particles with recycled powder was a little higher than the reference paste, but the higher fraction of fine particles made a stronger PSD effect, which improved the particle contact interaction. On the other hand, due to the higher polymer adsorption of recycled powder than cement, especially for superplasticizer with phosphate group, the average surface coverage was increased, which extended the separation distance, so that colloidal interaction among particles was weaken.","PeriodicalId":218724,"journal":{"name":"Low-carbon Materials and Green Construction","volume":"26 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-09-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135817028","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Value-added recycling of sludge and sludge ash into low-carbon construction materials: current status and perspectives 污泥和污泥灰分增值回收利用低碳建材的现状与展望

Low-carbon Materials and Green Construction Pub Date : 2023-09-11 DOI: 10.1007/s44242-023-00023-5

Yan Xia, Yue Liu, Lei Wang, Zhenhao Song, Chen Sun, Yading Zhao, Shengyong Lu, Jianhua Yan

引用次数: 0