In the framework of Circular Economy policies aimed at reducing the consumption of raw materials, shives, an agricultural by-product of hemp cultivation, have gained a renovated life in the construction sector; new building materials, suitable for various executive techniques, have been developed exploiting the excellent thermal insulating properties of shives. When this vegetal material is mixed with a mineral binder such as lime or cement, the mixture is usually referred to as hemp-lime. In Italy, the use of hemp-lime blocks and the development of new production chains dates back only to about the last decade, while other European countries have more long-lasting experiences. In order to assess the potential benefits of hemp-lime blocks in the construction sector, it is necessary to evaluate the performance of these materials in situ, i.e. on the construction site, to obtain fundamental data to ensure that consumers and designers receive trustworthy and relevant information on products and their durability.

This research work aims to be a solid base for the development of future guidelines and/or regulations at national and international level, in order to guarantee the maximum diffusion of this type of product. Then, a study plan has been carried out regarding the functionality of hemp-lime blocks in masonry, layered with finishing plaster made of fine hemp shives, to evaluate the in situ thermo-hygrometric building performance. In particular, experimental methods were developed and measurements were carried out on two structures, one in northern Italy and one in southern Italy, and precisely in Sicily, focusing the study on the performances of the walls subjected to warm Mediterranean climates.

在旨在减少原材料消耗的循环经济政策框架内，大麻种植的农业副产品——麻片在建筑领域获得了焕然一新；已经开发出适用于各种执行技术的新型建筑材料，利用木屑的优异隔热性能。当这种植物材料与石灰或水泥等矿物粘合剂混合时，这种混合物通常被称为大麻石灰。在意大利，大麻石灰块的使用和新生产链的开发只能追溯到过去十年左右，而其他欧洲国家则有更持久的经验。为了评估大麻石灰块在建筑领域的潜在好处，有必要就地评估这些材料的性能，即

这项研究工作旨在为未来在国家和国际层面制定指南和/或法规奠定坚实的基础，以保证此类产品的最大普及。然后，开展了一项关于砖石砌体中大麻石灰块的功能的研究计划，分层铺有由细麻碎屑制成的饰面石膏，以评估原位温湿建筑性能。特别是，开发了实验方法并在两个结构上进行了测量，一个在意大利北部，一个在意大利南部，准确地说是在西西里岛，重点研究墙壁在温暖的地中海气候下的性能。