Floor Impact Noise Laboratory (래미안 고요安 Lab)

Location	Jungdong, Giheung-gu, Yongin-si, Gyeonggi-do (within the research institute site)
Construction Period	May 2021 - April 2022 (12 months)
Construction Scale	1 underground level - 4 aboveground levels, 59 types (25-pyeong units) 10 households
Design	Samoo Architects & Engineers

Household Composition	Wall type 2 / Column type 3 / Mixed type 3 / Rigid frame 2
Building Area	565㎡
Floor Area	2,380㎡
Internal Facilities	10 demonstration households for inter-floor noise research (Experimental labs by household structure), technology experience room, measurement room, and offices

To lead residential environment technology in a way that befits the reputation of Korea's first branded apartment, Raemian

Constructed 10 demonstration households with different structural types and slab thicknesses

Comprised of 2 wall-type structures, 2 rigid-frame type structures, 3 column-type structures, and 3 mixed (wall + column) type structures
Conducted comprehensive research on factors influencing inter-floor noise, such as structural type, materials, and finishing methods

Engaging in technical collaborations and external communication for inter-floor noise reduction

Enhancing technical excellence through collaborations with inter-floor noise experts
Joint use of Raemian Goyoan Lab facilities
Employing new facilities as a venue for technology development
Promoting understanding of inter-floor noise by operating a technology experience center

Securing Grade 1 Certified Inter-floor Noise Technology

2003.10

Constructed the industry's first standard experimental building (Residential Performance Experimental Building, Eumseong, Chungcheongbuk-do)
2012.03

Completed Construction of Residential Performance Laboratory
2015~2016

Acquired the first certified floor structure as a construction company
*SMD-Ⅰ, Ⅱ, Ⅲ System (Lightweight Grade 1 / Medium Weight Grade 2)
2020.04

Implemented the 250 mm slab basic design in all Raemian construction sites
* Bid proposal
2020.12

Established the industry's first dedicated department for inter-floor noise
* Ph.D. (7), Master's (3), 10 members in total
2021.05

Constructed the industry's first specialized experimental facility for inter-floor noise
* Commenced construction for Raemian Goyoan Lab
2022.01

Secured four Grade 1 inter-floor noise technologies
*KCL certification
2022.05

Completed construction of Raemian Goyoan Lab
2022.10

Acquired Grade 1 inter-floor noise certification
* Medium Weight Grade 1, Lightweight Grade 1

A comprehensive review of inter-floor noise factors according to materials and configurations

Structural Type
- Review of inter-floor noise influenced by various structural types, such as wall type, column type, mixed type, and rigid frame type
- Verification of inter-floor noise reduction effect according to slab thickness
Materials
- Development of noise-reducing concrete and mortar materials
- Development of technology to maximize the performance of cushioning materials in reducing floor impact noise
Methods
- Development of control methods for noise and vibration transmission mediums, such as walls and ceilings
- Development of innovative methods, such as construction improvements and dry floor structure

Inter-floor noise-related intellectual property status

No.	Technology Name	Registration No.	Registration Date
1	Building floor with impact noise cushioning and its construction method	10-1683055	Nov. 30, 2016
2	Ceiling structure for reducing impact noise of heavy objects on the floor	10-2338176	Dec. 7, 2021
3	Admixture composition for general strength and high fluidity concrete	10-2279214	Jul. 13, 2021
4	Noise-reducing slab with partial cross-section expansion	10-2384726	Apr. 5, 2022
5	Floor mortar mix design method by strength grade for inter-floor noise reduction	10-2388141	Apr. 14, 2022
6	Floor structure system for impact noise reduction using grid-type blocks	10-2492517	Jan. 20, 2023
7	Floor structure for heavy-impact noise reduction	10-2492529	Jan. 20, 2023

No.	Technology Name	Application No.	Application Date
1	Inter-floor noise reducing dry heating floor structure	10-2020-0113140	Sep. 4, 2020
2	High fluidity concrete composition improved for flatness performance and effective against inter-floor noise using heavyweight aggregate	10-2021-0054859	Apr. 28, 2021
3	Cushioning material composition for excellent floor impact noise reduction performance in multi-family housing and its construction method	10-2021-0109949	Nov. 11, 2021
4	Soundproofing structure finishing cushioning material for floor impact noise reduction	10-2022-0058141	May 12, 2022
5	High-density (heavyweight) fine aggregate	10-2022-0107338	Aug. 26, 2022
6	Mortar composition mixed with high-density (heavyweight) fine aggregate	10-2022-0107339	Aug. 26, 2022
7	Inter-floor noise monitoring system combining vibration and high sound	10-2022-0124257	Sep. 29, 2022

No.	Technology Name	Registration No.	Registration Date
1	Inter-floor noise-reducing unit plan development_exclusive 84 m2 flat type	30-1107205	Apr. 27, 2021
2	Inter-floor noise-reducing unit plan development_exclusive 84 m2 tower type	30-1107206	Apr. 27, 2021
3	Inter-floor noise-reducing unit plan development_exclusive 59 m2 flat type	30-1131201	Oct. 6, 2021
4	Inter-floor noise-reducing unit plan development_exclusive 59 m2 tower type	30-1131204	Oct. 6, 2021
5	Inter-floor noise-reducing unit plan development_exclusive 114 m2 flat type	30-1131202	Oct. 6, 2021
6	Inter-floor noise-reducing unit plan development_exclusive 114 m2 tower type	30-1131203	Oct. 6, 2021