Barbieri Luisa, Altimari Fabiana, Andreola Fernanda, Maggi Bruno, Lancellotti Isabella
Department of Engineering "Enzo Ferrari", University of Modena and Reggio Emilia, Via P. Vivarelli 10, 41125 Modena, Italy.
CRICT-Inter-Departmental Research and Innovation Center on Constructions and Environmental Services, Via P. Vivarelli 10, 41125 Modena, Italy.
Materials (Basel). 2023 Apr 27;16(9):3408. doi: 10.3390/ma16093408.
This work started as a joint academia and company research project with the aim of finding new applications for domestically sourced volcanic products and related waste (pumice, lapillus, zeolitic tuff and volcanic debris from Tessennano and Arlena quarry) by creating a database of secondary volcanic raw materials and their intrinsic characteristics to help industry replace virgin materials and enhance circularity. In this context, accurate chemical, mineralogical, morphological, granulometric and thermal characterizations were performed. Based on the results presented, it can be concluded that due to their lightness, these materials can be used in the design and preparation of lightweight aggregates for agronomic purposes or in the construction field. Furthermore, due to their aluminosilicate nature and amorphous fraction, pumice and lapillus can play the role of precursor or activator for geopolymer preparation. With its porous nature, zeolitic tuff can be exploited for flue gas treatment. Due to the presence of feldspathic phase (sanidine), these materials can be used in tile production as a fluxing component, and with their pozzolanic activity and calcium content, they have application in the binder field as supplementary cementitious material or as aggregates.
这项工作最初是一个学术界与企业的联合研究项目，旨在通过创建次生火山原材料及其内在特性的数据库，为国内来源的火山产品及相关废料（来自泰森纳诺和阿尔莱纳采石场的浮石、火山砾、沸石凝灰岩和火山碎屑）寻找新的应用，以帮助行业替代原生材料并提高循环利用率。在此背景下，进行了精确的化学、矿物学、形态学、粒度分析和热特性表征。根据所呈现的结果，可以得出结论，由于这些材料的轻质特性，它们可用于设计和制备用于农艺目的或建筑领域的轻质骨料。此外，由于浮石和火山砾的硅铝酸盐性质和无定形部分，它们可作为地质聚合物制备的前驱体或活化剂。沸石凝灰岩因其多孔性质，可用于烟气处理。由于存在长石相（透长石），这些材料可作为助熔剂成分用于瓷砖生产，并且因其火山灰活性和钙含量，它们可作为辅助胶凝材料或骨料应用于粘结剂领域。
