Abstract
Great population density means that traffic volume in metropolitan areas is as a rule very high. This leads to high traffic-induced noise exposure, which can have a negative effect on the health and well-being of the people who live in such areas. To counter such noise exposure, noise reduction measures must be increasingly implemented in inner-city regions. One effective means toward this objective is to reduce the noise where it originates. Inner-city areas are frequently paved with concrete blocks, since they enable easy and fast construction processes, and since the results are of high aesthetic value. The first step of the project involved a search for a structure optimized with regard to the degree of noise absorption. To theoretically approach this task as precisely as possible on the basis of technical models, investigations began with mixtures of glass beads. In this way it was possible to eliminate the effect of particle shape on the physical and acoustic properties of the concrete structure. The porosity was determined experimentally and mathematically with the aid of packing density models.
Translated title of the contribution | Low-noise open-structured concrete block pavement - A joint research project at Munich Technical University |
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Original language | English |
Pages (from-to) | 40-41 |
Number of pages | 2 |
Journal | Betonwerk und Fertigteil-Technik/Concrete Precasting Plant and Technology |
Volume | 80 |
Issue number | 2 |
State | Published - 2014 |