Effect of pore characteristics on the sound absorption of pervious concretes
Source abstract
Abstract
The objective of this paper is to evaluate how the properties of pores affect the sound absorption of pervious concretes. To this end, nine mixtures of pervious concrete were prepared with pebbles as coarse aggregate, controlling cement consumption and water/cement ratio to vary the porosity properties of the mixtures. The specimens were tested in a reduced-scale reverberation room to determine the sound absorption coefficient for diffuse incidence. As a result, correlations were obtained between the properties of internal pores and the sound absorption at medium and high frequencies, while the properties of superficial pores were related to the absorption at lower frequencies. An optimum value of w/c ratio of 0.32 and cement paste content of 0.27 and 0.29 were found to improve the sound absorption of pervious concrete.
Source: openalex_inverted_index · Quality: baseline
Research context
OpenAlex topics: Urban Stormwater Management Solutions · Noise Effects and Management · Acoustic Wave Phenomena Research
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (59)
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