x -盐特性的评估:一种使用天然粘合剂用于增材制造的盐基建筑材料

IF 3.5 Q3 GREEN & SUSTAINABLE SCIENCE & TECHNOLOGY Smart and Sustainable Built Environment Pub Date : 2022-10-11 DOI:10.1108/sasbe-05-2022-0097
Deena El-Mahdy, Hisham S. Gabr, Sherif Abdelmohsen
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引用次数: 1

摘要

目的尽管建筑业向增材制造业急剧增长,但与3D打印中最具市场可用性的材料(如消耗高碳排放的混凝土)相比,使用地球和盐等天然材料面临着一些挑战。设计/方法/方法在干试验和湿试验中对三种天然粘合剂的19个样品进行了表征和机械试验,以模拟增材制造过程,从而获得适合3D打印机的高效可挤出和可打印混合物。结果通过对颗粒尺寸、压实度、内聚力、形状、热量和水分的抗压强度测试,X-Salt的抗压强度高达9.5兆帕。这相当于旧的Karshif和耐火砖,超过了夯土和新的Karshi夫。X-Salt评估能源使用的材料流分析表明,与盐相比,在生命周期结束时,仅产生10%的回收废物。研究局限性/含义预计研究结果将提升3D盐打印在现场和场外建筑应用中的使用。实际意义研究结果有助于尝试使用具有足够稳定性的3D盐打印来解决与乡土建筑相关的挑战。社会影响效益包括可回收性和最小的环境影响。然而,与技术整合有关的社会方面仍有待进一步研究。独创性/价值本文通过使用X-salt(一种盐基和天然粘合剂),扩大了Karshif(一种埃及沙漠中的盐基传统建筑材料)的使用范围,并通过测试其机械性能来研究其可打印性,以获得更清洁、低成本的可持续3D打印混合物。
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Assessment of X-Salt characterization: a salt-based construction material using natural adhesives for additive manufacturing
PurposeDespite the dramatic increase in construction toward additive manufacturing, several challenges are faced using natural materials such as Earth and salt compared to the most market-useable materials in 3D printing as concrete which consumes high carbon emission.Design/methodology/approachCharacterization and mechanical tests were conducted on 19 samples for three natural binders in dry and wet tests to mimic the additive manufacturing process in order to reach an efficient extrudable and printable mixture that fits the 3D printer.FindingsUpon testing compressive strength against grain size, compaction, cohesion, shape, heat and water content, X-Salt was shown to record high compressive strength of 9.5 MPa. This is equivalent to old Karshif and fire bricks and surpasses both rammed Earth and new Karshif. Material flow analysis for X-Salt assessing energy usage showed that only 10% recycled waste was produced by the end of the life cycle compared to salt.Research limitations/implicationsFindings are expected to upscale the use of 3D salt printing in on-site and off-site architectural applications.Practical implicationsFindings contribute to attempts to resolve challenges related to vernacular architecture using 3D salt printing with sufficient stability.Social implicationsBenefits include recyclability and minimum environmental impact. Social aspects related to technology integration remain however for further research.Originality/valueThis paper expands the use of Karshif, a salt-based traditional building material in Egypt's desert by using X-Salt, a salt-base and natural adhesive, and investigating its printability by testing its mechanical properties to reach a cleaner and low-cost sustainable 3D printed mixture.
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来源期刊
Smart and Sustainable Built Environment
Smart and Sustainable Built Environment GREEN & SUSTAINABLE SCIENCE & TECHNOLOGY-
CiteScore
9.20
自引率
8.30%
发文量
53
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