El territorio tardoantiguo y altomedieval en el sureste de Hispania: Eio-Iyyuh como caso de estudio

Estudiamos las evidencias de la ocupación tardoantigua y altomedieval en el entorno de la ciudad de Eio-Iyyu (El Tolmo de Minateda, Hellín, Albacete). Mediante el reconocimiento superficial del terreno y la revisión de los materiales arqueológicos se propone la caracterización del poblamiento entre los ss. VII d.C. y IX d.C. El análisis ofrece una ocupación densa en la que empiezan a reconocerse espacios campesinos agregados que podría corresponder a aldeas campesinas.

Acoustic properties of porous concrete made from arlite and vermiculite lightweight aggregates

The use of sustainable materials is becoming a common practice for noise abatement in building and civil engineering industries. In this context, many applications have been found for porous concrete made from lightweight aggregates. This work investigates the acoustic properties of porous concrete made from arlite and vermiculite lightweight aggregates. These natural resources can still be regarded as sustainable since they can be recycled and do not generate environmentally hazardous waste. The experimental basis used consists of different type specimens whose acoustic performance is assessed in an impedance tube. Additionally, a simple theoretical model for granular porous media, based on parameters measurable with basic experimental procedures, is adopted to predict the acoustic properties of the prepared mixes. The theoretical predictions compare well with the absorption measurements. Preliminary results show the good absorption capability of these materials, making them a promising alternative to traditional porous concrete solutions.