Study on Improvement of Floor Impact Sound Insulation Performance in Repairing Floor Layers of Aged Apartment

Kim, Sin-Tae; Cho, Hyun-Min; Kim, Myung-Jun

doi:10.5050/ksnve.2019.29.2.206

Cited by 5 publications

(5 citation statements)

References 5 publications

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“…Meanwhile, the floor impact sound level of the floor group (Q-59 and R-59) which used both the resilient material and PVC flooring was clearly lower than that of the floor group (N-59, O-59, and P-59) with only PVC flooring. In particular, from 250 Hz to 1 kHz, the floor impact sound level was significantly reduced, thus indicating that the floating floor system using the resilient material is effective in reducing the impact sound level [29]. The results obtained in MB2 with an exclusive use area of 84 m 2 were similar to the measured results obtained in MB1, as mentioned above.…”

Section: Impact Sound Pressure Levelssupporting

confidence: 84%

“…Similarly, in MB2, the floor impact sound level of the floor group with the resilient material (V-59 and W-59) decreased more rapidly at a higher frequency band than that of the floor group with no resilient material (S-59, T-59, and U-59). This suggests that the floating floor is somewhat effective in reducing the heavyweight impact sound in the middle-to-high frequency band [29]. Furthermore, similar to the measured results of the tapping machine, the impact sound level for each frequency band varied depending on the ceiling conditions in TR 1-4, MB1, and MB2.…”

Section: Impact Sound Pressure Levelssupporting

confidence: 67%

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Effects of Wall-to-Wall Supported Ceilings on Impact Sound Insulation for Use in Residential Buildings

2021

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In Korean residential buildings, floor impact sounds were reduced over the past few decades mainly through a floating floor system. However, ceiling constructions for impact sound reduction have not been applied actively because of a lack of useful information. This study focuses on the effects of wall-to-wall supported ceilings (WSC), which are designed with construction discontinuities between concrete slabs and ceilings, and the damping caused by porous absorbers for impact sound insulation. To examine the impact sound insulation according to ceiling conditions, measurements were performed in 25 floor–ceiling assemblies. The results indicate that ceiling treatment is mostly useful in reducing the floor impact sound. The floor impact sound owing to the WSC decreased by 2–7 dB and 2–8 dB in terms of the single number quantity for the tapping machine and rubber balls, respectively, compared with representative existing housing constructions wherein ceilings were attached on wooden sticks. Furthermore, the reduction effect of the WSC appeared to be more profound when it was applied to the floor–ceiling assembly with poor impact sound insulation. Thus, the WSC can be used to enhance the impact of sound insulation of existing housings without major repairs of floor structural layers.

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Section: Impact Sound Pressure Levelssupporting

confidence: 84%

Section: Impact Sound Pressure Levelssupporting

confidence: 67%

Effects of Wall-to-Wall Supported Ceilings on Impact Sound Insulation for Use in Residential Buildings

2021

Self Cite

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“…At the same time, the standardized control of each link is realized while ensuring the quality and efficiency of project construction and reasonably controlling its construction period. In engineering construction, the basic characteristics and actual requirements of engineering construction should be analyzed to develop a practical and feasible comprehensive cost management work plan, achieve effective control of construction costs, and guarantee the economic benefits of the enterprise [ 1 , 2 ]. The concept of “green building” has rich connotations; its genes contain a long history of regional architecture or climate-responsive design ideas.…”

Section: Introductionmentioning

confidence: 99%

Impact Sound Insulation Performance Testing of Nano-Inorganic Composite Floor Slabs for Green Buildings

Luo

Yang

Zhou

2022

International Journal of Analytical Chemistry

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To explore the detection of impact sound insulation performance of nano-inorganic composite floor slabs for green buildings, for 4 types of floor slab practices in a certain area, we carry out the detection of the sound insulation performance of the floor impact sound and analyze and summarize the test results. Finally, several common technical measures to effectively improve the sound insulation performance of floor impact sound are summarized. Experimental results show that with floor slabs using nano-inorganic composite material FBP, the impact sound insulation performance of the floor slab can be greatly improved. FRP materials have the advantages of high strength, lightweight, and good corrosion resistance. They are more and more widely used in construction engineering. At this stage, for environmental friendly green building materials and nano-inorganic composite materials with certain effects, their main practice and application play an important role. It is proved that adding FBP material can greatly improve the impact sound insulation performance of floor slabs.

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“…Ten 40-50-year-old subjects participated in the field survey. The number of subjects (10) was very small compared to general subjective experiments, but considering that it was an actual residential field condition, not a laboratory, it was tried to check whether the physical change of floor impact sound can be felt subjectively. The questionnaire consisted of three items of loudness, noisiness, and annoyance on a 7-point rating scale (from 1 not at all to 7 extremely) [8].…”

Section: Field Questionnaire Surveymentioning

confidence: 99%

“…In South Korea, a concrete slab with a thickness of 210 mm or more has been forced to be used for building an apartment complex for securing minimum performance of isolating floor impact noises since 2013 [10]. However, many apartment buildings built before the regulation entered into force had relatively thinner concrete slabs, for example, less than 150 mm in the 1990s and 180 mm in the early 2000s [11].…”

Section: Introductionmentioning

confidence: 99%

Acoustic Retrofit Approach of an Apartment Living Room Using Multi-Perforated Gypsum Boards in Terms of Heavy-Weight Impact Sounds

Kim

2022

Sustainability

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In this study, the effects of multi-perforated gypsum boards on floor impact noises were investigated in a box-type test building and an actual apartment building. In a box-type test building with 150 mm thick slab, various design factors such as hole pattern, hole size, opening ratio, backing, or finishing materials were considered. Heavy-weight impact sources of bang machine and rubber ball were employed. The test procedure followed KS F 2810-2, and then, a single number rating was derived in accordance with KS F 2863-2. As a result, reduction of heavy-weight impact noise by applying multi-perforated gypsum boards as a ceiling material was expected maximumly up to 3 dB for bang machine and 5 dB for rubber ball. Regarding the reduction of floor impact sounds at frequencies above 125 Hz, the installed area of the employed multi-perforated gypsum board was shown as the most dominant factor. Then, an in situ investigation using standard impact sources and five children was carried out in an actual living space of an actual apartment dwelling unit. Comparing before and after installation of multi-perforated gypsum board, 1–2 dB of heavy-weight impact noises was reduced. In addition, subjective impressions of the reduced impact noise were discussed based on the field questionnaire survey using actual children’s running situations.

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Study on Improvement of Floor Impact Sound Insulation Performance in Repairing Floor Layers of Aged Apartment

Cited by 5 publications

References 5 publications

Effects of Wall-to-Wall Supported Ceilings on Impact Sound Insulation for Use in Residential Buildings

Effects of Wall-to-Wall Supported Ceilings on Impact Sound Insulation for Use in Residential Buildings

Impact Sound Insulation Performance Testing of Nano-Inorganic Composite Floor Slabs for Green Buildings

Acoustic Retrofit Approach of an Apartment Living Room Using Multi-Perforated Gypsum Boards in Terms of Heavy-Weight Impact Sounds

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