Correlation between dynamic stiffness of resilient materials and heavyweight impact sound reduction level

Kim, Kyoung-Woo; Jeong, Gab-Cheol; Yang, Kwan-Seop; Sohn, Jang-Yeul

doi:10.1016/j.buildenv.2008.10.005

Cited by 77 publications

(44 citation statements)

References 2 publications

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“…3 shows the compressive stress vs. strain curves of tested specimens. The observed structural behavior of the resilient materials subjected to short-term load was similar to that obtained from the compressive tests by Kim et al [3].…”

Section: A Specimen and Test Methodssupporting

confidence: 73%

“…And it was also found that the dynamic stiffness of whole structure did not change even if the disposition of components changed. In addition, Kim et al [3] indicated that the floor impact sound reduction level tended to increase as the frequency increased, and the reduction level clearly varied depending on the differences in dynamic stiffness. As the dynamic stiffness decreased, the resonance frequency decreased and the impact sound reduction level increased.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Structural Behavior of Resilient Materials Subjected to Short-Term Load and Long-Term Load

Lee¹,

Lee²,

Choi³

et al. 2014

IJET

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Section: A Specimen and Test Methodssupporting

confidence: 73%

Section: Introductionmentioning

confidence: 99%

Structural Behavior of Resilient Materials Subjected to Short-Term Load and Long-Term Load

Lee¹,

Lee²,

Choi³

et al. 2014

IJET

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“…Heavyweight impact sound as well as lightweight floor impact sound is found to be affected by the change in the dynamic stiffness of resilient materials (Kim et al, 2009). Measurement results showed that the determining coefficient between dynamic stiffness and insulation performance of heavyweight impact sound is 0.74 (Kim et al, 2009). Baron et al emphasized the importance of deriving accurate values by examining the effects of the pulse excitation measurement mechanism (Baron et al, 2004).…”

Section: Introductionmentioning

confidence: 85%

Influence of Loading Time of a Load Plate and Sample Size on the Measurement of Physical Properties of Resilient Materials

Kim¹,

Yeon²,

Yang³

et al. 2015

Archives of Acoustics

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This study investigates several factors that have not been specified in the standard for dynamic stiffness, compressibility, and long-term deformation; these factors can be used to evaluate the acoustic and physical performances of resilient materials. The study is intended to provide basic data for deriving the factors that need to be additionally reviewed through the standards. Since magnitude of dynamic stiffness changes with an increase in loading time, it is necessary to examine the setting of the loading time for a load plate under test conditions. Samples of size 300×300 mm, rather than 200×200 mm, yielded more reliable results for compressibility measurement. Since the test to infer long-term deformation of resilient materials after a period of 10 years in some samples showed variation characteristics different from those specified in the standards, it is recommended that the test method should be reviewed through ongoing research.

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“…mineral wool and expanded polystyrene slabs are widely used. The operational properties of such materials is well investigated; therefore, it is of no difficulty to select any special material for different constructions (Buska et al 2008;Dikavičius, Miškinis 2009;Miškinis 2010;Kim et al 2009). However, the analysis of references showed that no sufficient data are available on abovementioned properties of lightweight composite.…”

Section: Introductionmentioning

confidence: 99%

Influence of Different Loads on the Properties of Lightweight Composite

Kligys

Sinica

Sezemanas

et al. 2012

Journal of Civil Engineering and Management

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The paper describes the study on the operational properties of lightweight composite with density of 150-350 kg/m 3 . It was established that these properties depend on the ratio of porous cement matrix and inclusions of crushed expanded polystyrene packing tare waste per unit volume of the lightweight composite. Studies have demonstrated that when the density of lightweight composite varies in the above mentioned limits, the compressibility amounts to 2.4-0.8 mm, point load -0.38-3.39 kN, dynamic stiffness -35-135 MN/m 3 , and reduction in normalised impact sound pressure level -26-17 dB. The dependences between the established properties and the density of lightweight composite are showed in the equations of regression. Possible versions for the use of lightweight composite in different constructions of floors and roofs are also provided.

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Correlation between dynamic stiffness of resilient materials and heavyweight impact sound reduction level

Cited by 77 publications

References 2 publications

Structural Behavior of Resilient Materials Subjected to Short-Term Load and Long-Term Load

Structural Behavior of Resilient Materials Subjected to Short-Term Load and Long-Term Load

Influence of Loading Time of a Load Plate and Sample Size on the Measurement of Physical Properties of Resilient Materials

Influence of Different Loads on the Properties of Lightweight Composite

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