Journal of Sustainable Cement-Based Materials最新文献_第8页

Laminated stone-inspired multi-layer crystal structure reinforced bamboo scrap/magnesium oxychloride lightweight composites 受石材启发的多层晶体结构增强竹片/氯氧镁轻质复合材料

IF 4.4 3区工程技术

Journal of Sustainable Cement-Based Materials Pub Date : 2023-05-10 DOI: 10.1080/21650373.2023.2210316

Long Zheng, Yingfeng Zuo, Xingong Li, Yi-quiang Wu

{"title":"Laminated stone-inspired multi-layer crystal structure reinforced bamboo scrap/magnesium oxychloride lightweight composites","authors":"Long Zheng, Yingfeng Zuo, Xingong Li, Yi-quiang Wu","doi":"10.1080/21650373.2023.2210316","DOIUrl":"https://doi.org/10.1080/21650373.2023.2210316","url":null,"abstract":"Abstract Magnesium-based aerated cement has the characteristics of noncombustibility and nontoxicity compared with traditional organic aerated materials, realizing low-carbon manufacturing and energy saving in building construction. However, the pore walls of ordinary magnesium-based aerated cement are thin and brittle and can easily collapse under force, limiting its application in energy saving. This study aimed to obtain low-cost, low-energy, lightweight, high-strength, flame-retardant, and heat-insulating thermal insulation materials. Inspired by the formation process of stacked stones, calcium stearate was adsorbed on solid particles, stabilizing the pore and forming independent lumps of gel-state crystals in this study. At the same time, the hydrogen bonds of hydroxyethyl cellulose were used to chemically stitch the dispersed crystals to form a dense laminated structure. The interfacial compatibility between bamboo scraps and magnesium oxychloride improved the load transfer efficiency. The results showed that the strength-to-weight ratio of the composites increased 2.5 times, and the softening coefficient increased about 2 times. In comparison, the mechanical properties and thermal insulation properties of the composites far exceeded those of most thermal insulation materials, providing a theoretical basis for their use in the field of multifunctional building materials.","PeriodicalId":48521,"journal":{"name":"Journal of Sustainable Cement-Based Materials","volume":"12 1","pages":"1218 - 1227"},"PeriodicalIF":4.4,"publicationDate":"2023-05-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46309131","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

Utilization of waste glass in alkali activated slag/fly ash blends: reaction process, microstructure, and chloride diffusion behavior 废玻璃在碱矿渣/粉煤灰混合物中的利用：反应过程、微观结构和氯化物扩散行为

IF 4.4 3区工程技术

Journal of Sustainable Cement-Based Materials Pub Date : 2023-05-04 DOI: 10.1080/21650373.2022.2082577

Tao Liu, Q. Yu, H. Brouwers, Xiaochun Fan

引用次数: 8

Quantification of volume change of AAC blocks for various environmental conditions 量化不同环境条件下AAC砌块的体积变化

IF 4.4 3区工程技术

Journal of Sustainable Cement-Based Materials Pub Date : 2023-04-13 DOI: 10.1080/21650373.2023.2196793

R. Sudhakar, B. Balakrishnan, M. Santhanam, Harini Santhanam

{"title":"Quantification of volume change of AAC blocks for various environmental conditions","authors":"R. Sudhakar, B. Balakrishnan, M. Santhanam, Harini Santhanam","doi":"10.1080/21650373.2023.2196793","DOIUrl":"https://doi.org/10.1080/21650373.2023.2196793","url":null,"abstract":"Autoclaved Aerated Concrete (AAC) masonry systems are widely used as partition walls in framed structures. Cracking is often reported in such walls after a certain duration of construction. Dimensional changes occurring in the masonry system under varying temperature and relative humidity (RH) conditions are some of the primary reasons for such distress. Past studies show that bedding mortar can significantly contribute to dimensional changes due to shrinkage behaviour. Most of the literature focus on characterising the influence of raw materials on the microstructure, strength, and performance characteristics of AAC blocks. In the current study, experimental studies on AAC blocks with and without bedding mortars are conducted under controlled and ambient environmental conditions to understand the impact of temperature and RH on the dimensional change behaviour of these wall systems. Furthermore, the dimensional changes observed for AAC blocks are compared with conventional clay and fly ash bricks to understand the intrinsic properties of these materials. In the experimental studies under ambient conditions, small and large-scale AAC masonry units are built and monitored for dimensional change over a period of one month. Results show that the AAC block undergoes significant dimensional change along with the bedding mortar, which is greatly influenced by the boundary conditions of the masonry system, relative humidity, and temperature. In the end, recommendations are given at the component and system levels to reduce the crack development in AAC masonry.","PeriodicalId":48521,"journal":{"name":"Journal of Sustainable Cement-Based Materials","volume":"12 1","pages":"1205 - 1217"},"PeriodicalIF":4.4,"publicationDate":"2023-04-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45603719","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

Fracture features of calcium carbonate whisker-based composites under freezing and thawing cycles using semi-circular bend test 半圆形弯曲试验研究碳酸钙晶须基复合材料在冻融循环下的断裂特征

IF 4.4 3区工程技术

Journal of Sustainable Cement-Based Materials Pub Date : 2023-04-03 DOI: 10.1080/21650373.2022.2066028

Zixing Liu, M. Cao, Chaopeng Xie

{"title":"Fracture features of calcium carbonate whisker-based composites under freezing and thawing cycles using semi-circular bend test","authors":"Zixing Liu, M. Cao, Chaopeng Xie","doi":"10.1080/21650373.2022.2066028","DOIUrl":"https://doi.org/10.1080/21650373.2022.2066028","url":null,"abstract":"Calcium carbonate whiskers (CW) showed good cracking resistance at the microscale. In this research, four different CW volume fractions (1.0%, 1.5%, 2.0%, and 3.0%) were added into cement mortar. The purpose was to further investigate the fracture behavior by using a semi-circular bend test (SCB) of SCB-CW after different freezing and thawing cycles (0 cycles, 25 cycles, 50 cycles, 75 cycles, and 100 cycles). In addition, three analytical models of SCB-PM and SCB-CW were established to predict the stress-strain response after different freezing and thawing cycles. The experimental results showed that the lowest mass increment, electric flux, highest residual flexural strength, fracture toughness, and fracture energy after different freezing and thawing cycles were observed in SCB-CW3.0. It was observed from the experimental results that only model II completely satisfied its basic requirements and its parameter c was closely correlated with the number of freeze-thaw cycles and the CW volume fraction. Highlights Calcium carbonate whisker is added to enhance the fracture behavior of mortar. The different freezing and thawing cycles are considered. The results are obtained using semi-circular bend test and analytical models are established. The highest fracture parameters are observed in SCB-CW3.0 under different freezing and thawing cycles. The model II is suggested for predicting the experimental response of composites.","PeriodicalId":48521,"journal":{"name":"Journal of Sustainable Cement-Based Materials","volume":"12 1","pages":"369 - 380"},"PeriodicalIF":4.4,"publicationDate":"2023-04-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43849251","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

Limestone calcined clay cement: mechanical properties, crystallography, and microstructure development 石灰石煅烧粘土水泥：力学性能、晶体学和微观结构发展

IF 4.4 3区工程技术

Journal of Sustainable Cement-Based Materials Pub Date : 2023-04-03 DOI: 10.1080/21650373.2022.2074911

Hao Sui, P. Hou, Yanming Liu, K. Sagoe-Crentsil, Felipe Basquiroto de Souza, W. Duan

{"title":"Limestone calcined clay cement: mechanical properties, crystallography, and microstructure development","authors":"Hao Sui, P. Hou, Yanming Liu, K. Sagoe-Crentsil, Felipe Basquiroto de Souza, W. Duan","doi":"10.1080/21650373.2022.2074911","DOIUrl":"https://doi.org/10.1080/21650373.2022.2074911","url":null,"abstract":"Abstract Limestone calcined clay cement (LC3) holds promise as a new type of sustainable cement-based material, but the mechanisms underpinning its engineering performance are still poorly understood. Here, a metal intrusion-enhanced imaging approach was employed to quantitatively analyze and link the pore structure development of LC3 to its hydration process, i.e. solid-phase development, and mechanical performance. We found that the early age microstructural development in LC3 is inhomogeneous, with the perimeter of limestone particles displaying higher porosity relative to that surrounding calcined clay and clinker. At later ages, the formation of carboaluminates and calcium-aluminate-silicate-hydrates homogenized the overall microstructure of LC3, thereby delivering improved mechanical performance. Overall, our analysis suggested a more efficient particle packing in LC3 mixes, which decreases the volume/connectivity of micro-pores and can account for LC3’s notable flexural strength. These findings can assist the development of improved LC3 binder formulations alongside other ternary binders with possibly higher limestone additions.","PeriodicalId":48521,"journal":{"name":"Journal of Sustainable Cement-Based Materials","volume":"12 1","pages":"427 - 440"},"PeriodicalIF":4.4,"publicationDate":"2023-04-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46320706","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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: 10

Low carbon technology roadmap of China cement industry 中国水泥工业低碳技术路线图

IF 4.4 3区工程技术

Journal of Sustainable Cement-Based Materials Pub Date : 2023-03-30 DOI: 10.1080/21650373.2023.2188274

Xiao Zhi, X. An

引用次数: 1

Technical and environmental assessment of hydrothermally synthesized foshagite and tobermorite-like crystals as fibrillar C-S-H seeds in cementitious materials 水热合成磷镁石和类托贝莫石晶体作为纤维状C-S-H晶种在胶凝材料中的技术和环境评价

IF 4.4 3区工程技术

Journal of Sustainable Cement-Based Materials Pub Date : 2023-03-30 DOI: 10.1080/21650373.2023.2185828

S. Nassiri, Ananya Markandeya, M. Haider, Antonio Valencia, M. Rangelov, Hui Li, Aaron Halsted, David Bollinger, J. McCloy

{"title":"Technical and environmental assessment of hydrothermally synthesized foshagite and tobermorite-like crystals as fibrillar C-S-H seeds in cementitious materials","authors":"S. Nassiri, Ananya Markandeya, M. Haider, Antonio Valencia, M. Rangelov, Hui Li, Aaron Halsted, David Bollinger, J. McCloy","doi":"10.1080/21650373.2023.2185828","DOIUrl":"https://doi.org/10.1080/21650373.2023.2185828","url":null,"abstract":"Abstract This study evaluates two calcium-silicate-hydrate (C-S-H) nanoseeds: tobermorite (TOB) and foshagite (FOS), for accelerating hydration and strength gain in cement systems. TOB and FOS seeding at 1.5%wt generated 7 and 3 times more heat of hydration than the control at hour four. In addition, 1.5%wt TOB and 1%wt FOS seeding increased 1- and 3-day compressive strength (fc ) by 40 and 30% and flexural strength (ff ) by 20 and 23%. Twenty-eight-day fc and ff increased by up 30 and 17% with 1.5%wt TOB. The contribution of C-S-H seeds to the total global warming potential of seeded mortars was 9–15% and down to 2–5% using recycled steam. After the improvements in 28-day fc were factored in, the carbon intensity index of seeded mortars was lower than the control by up to 20%. Based on these initial results, the studied hydrothermally synthesized C-S-H seeds appear sensible from the strength development and environmental stances.","PeriodicalId":48521,"journal":{"name":"Journal of Sustainable Cement-Based Materials","volume":"12 1","pages":"1181 - 1204"},"PeriodicalIF":4.4,"publicationDate":"2023-03-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41802968","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

Study of 3D printed concrete with low-carbon cementitious materials based on its rheological properties and mechanical performances 基于流变性能和力学性能的低碳胶凝材料3D打印混凝土研究

IF 4.4 3区工程技术

Journal of Sustainable Cement-Based Materials Pub Date : 2023-03-24 DOI: 10.1080/21650373.2023.2189172

Weijiu Cui, Tianheng Wang, Xinfa Chen, Wenkai Shen, Xinyu Shi, Sheng Wang, P. Zhang

{"title":"Study of 3D printed concrete with low-carbon cementitious materials based on its rheological properties and mechanical performances","authors":"Weijiu Cui, Tianheng Wang, Xinfa Chen, Wenkai Shen, Xinyu Shi, Sheng Wang, P. Zhang","doi":"10.1080/21650373.2023.2189172","DOIUrl":"https://doi.org/10.1080/21650373.2023.2189172","url":null,"abstract":"Using high-volume cement in 3D printed concrete (3DPC) can lead to later crack formation. Accordingly, mineral admixtures can be used as cement replacements to mitigate this disadvantage. In this study, fly ash, slag, and a type of silica fume (with a high water consumption) are selected as supplementary materials in 3DPC under different substitution rates. A method for the printability evaluation of each test group in the orthogonal experiment is proposed based on a comprehensive analysis of the rheological behavior and mechanical performance of the test samples. The results indicate that a cement replacement ratio of 50% can be achieved in 3DPC while retaining its rheological behavior and mechanical performance. According to the actual printing test, the selected silica fume improves the buildability of 3DPC and can serve as an economical and effective cement substitute. The findings in this study also reveal the potential application of poor-quality mineral admixtures in 3DPC, which can increase economy and reduce CO2 emissions.","PeriodicalId":48521,"journal":{"name":"Journal of Sustainable Cement-Based Materials","volume":"12 1","pages":"832 - 841"},"PeriodicalIF":4.4,"publicationDate":"2023-03-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44319025","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

Investigation on the microstructure of a 3D-printed mortar through a novel leaching-subsidiary tomography 新型浸辅层析成像技术研究3d打印砂浆微观结构

IF 4.4 3区工程技术

Journal of Sustainable Cement-Based Materials Pub Date : 2023-03-06 DOI: 10.1080/21650373.2023.2184430

Dong Cui, Ying-chuan Wu, Xiaohui Xie, Guanfei Tian, Guantong Han, Yi Wan, K. Zheng, Wenting Li

引用次数: 0

Insight into mechanical properties and microstructure of concrete containing steel slag and ground-granulated blast-furnace slag 钢渣和磨细高炉矿渣混凝土的力学性能和微观结构

IF 4.4 3区工程技术

Journal of Sustainable Cement-Based Materials Pub Date : 2023-02-22 DOI: 10.1080/21650373.2023.2180103

Shaofeng Zhang, D. Niu, Yan Wang, Wenqiang Tian, Daming Luo, Lu Zhang

{"title":"Insight into mechanical properties and microstructure of concrete containing steel slag and ground-granulated blast-furnace slag","authors":"Shaofeng Zhang, D. Niu, Yan Wang, Wenqiang Tian, Daming Luo, Lu Zhang","doi":"10.1080/21650373.2023.2180103","DOIUrl":"https://doi.org/10.1080/21650373.2023.2180103","url":null,"abstract":"The impacts of steel slag (SS) and ground-granulated blast-furnace slag (GGBS) on the mechanical properties, hydration process, and microscopic characteristics of concrete were investigated in this study. The results show that substituting cement with SS has a negative impact on the strength; however, partial replacement of SS with GGBS could produce positive effect by facilitating the whole hydration of SS and cement. The improvement impact of GGBS on strength was small in early stages (3–28 days) and occurred mainly in the late stages (28–90 days). Meanwhile, the heat flow and cumulative hydration heat was decreased by the incorporation of SS and GGBS, in comparison to plain cement. The microscopic analysis results proved that replacing SS with GGBS could increase the whole hydration reaction degree, decrease the content of Ca(OH)2, enhance the compactness of the interfacial transition zone (ITZ), and refine the pore structure of concrete. Furthermore, a formula was established to estimate the splitting tensile strength according to compressive strength. The finding of this study provides valuable information on the practical application of the industrial wastes in concrete.","PeriodicalId":48521,"journal":{"name":"Journal of Sustainable Cement-Based Materials","volume":"12 1","pages":"1169 - 1180"},"PeriodicalIF":4.4,"publicationDate":"2023-02-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49229687","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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