Building materials: Influence of physical, mechanical and acoustic properties in sound prediction models

Abstract

Several models to compute the sound reduction index of a building partition, based on different approaches, can be found in the literature. Building construction involves a great variety of materials, and regardless of the chosen sound transmission simulation prediction approach, their elastic and physical properties, which are necessary as input data, have a strong influence on the accuracy of the predicted results. In this article, the influence of such properties is investigated, by means of a prediction model based on the method proposed by the recently updated standard EN ISO 12354. Moreover, the reliability of different prediction models and the consistency of their results have been tested, by simulating several building partitions made of various materials, both homogeneous and non-homogeneous.

Preparation and Sound Insulation Performance of Polystyrene Building Flame Retardant and Thermal Insulation Building Materials

“…e tablet was pressed at 200 °C for 20 min. After cooling, cut the sheet material into 4 cm × 3 cm×2 cm for standby [16].…”

Intelligent Cost Accounting Optimization System of Building Engineering Materials Based on Ant Colony Algorithm

“…Residential buildings mainly refer to family buildings focusing on daily life, such as apartments and villas. According to the use of building materials, building materials can be divided into special materials for structure, decoration, and other special materials [4][5][6]. Building engineering materials have experienced strong wind, sun, rain, friction, and corrosion for a long time, and the performance of building engineering materials will gradually change.…”

“…In formula (6), d represents the total amount of domestic waste generated in the building life cycle, h represents the unit removal cost of domestic waste, d c represents the amount of domestic waste with different treatment methods, and h c represents the unit treatment cost of different treatment methods of domestic waste. Actual cost refers to the cost incurred in the process of project implementation, which is often paid in the form of accounting, audit, and so on.…”

A comprehensive vibroacoustic investigation of a cross laminated timber floor

“…From one hand, in years some works have focused on some mechanical characteristics of horizontal wooden partitions, paying great attention to impact noise [23][24][25][26][27][28], while on the other hand many studies have also recently focused on the study of the vibro-acoustic and modal characterization [29][30][31][32]. Nevertheless, they show that the vibroacoustic and modal characterisation of wooden floors is something that needs further investigations [33,34].…”