—The number of high-rise apartment houses has been steadily increasing since the 1980’s in a densely populated country. More than 58 percent of Koreans are living in apartment houses in 2012. One of the big residential environment concerns in living apartment houses is noise pollution induced by floor impact sound. Korean government regulates light-weigh impact sound and heavy-weigh impact sound to be lower than 58 dB and 50dB, respectively. To reduce floor impact sound, resilient materials are commonly used. The most common types of resilient material available in Korea are Ethylene Polystyrene(EPS) and Ethylene Vinyl Acetate(EVA) made from rubber. The flexible EPS is known for being soft, and it also possess a natural springiness, especially when installed over a sprung reinforced concrete slabs. These resilient materials placing between reinforced concrete slab and finishing mortar should not only reduce floor impact sound vibrated from the floor but also support load on the floor. This paper presents the test results of the structural behavior of sound reduction materials. Twenty-four sound reduction materials were tested. The main parameters of test were magnitude of load and duration of load. Test results indicated that the duration of load strongly effects on the structural behavior of resilient materials for reduction of floor impact sound.
Jung-Yoon Lee is with Department of Civil and Architectural Engineering, Sungkyunkwan University, 440-746, Jang-an Gu, Suwon, Republic of Korea (e-mail: jungyoon@ skku.edu).
Su-Chan Lee, Seong-Ho Choi, and Ah-Ra Lim are with Department of Mega Buildings and Bridges, Sungkyunkwan University, 440-746, Jang-an Gu, Suwon, Republic of Korea (e-mail: firstname.lastname@example.org, email@example.com, e-mail: firstname.lastname@example.org).
Ji-Sun Park is with Advanced Building Research Division, Building Research Department, Korea Institute of Construction Technology, 283 Goyangdae-Ro, Ilsanseo-Gu, Goyang-Si, Gyeonggi-Do, 411-712, Republic of Korea (e-mail: email@example.com).
Jong-Mun Kim is with Department of Global Construction Engineering, Sungkyunkwan University, 440-746, Jang-an Gu, Suwon, Republic of Korea (e-mail: firstname.lastname@example.org).
Cite: Jung-Yoon Lee, Su-Chan Lee, Seong-Ho Choi, Ah-Ra Lim, Ji-Sun Park, and Jong-Mun Kim, "Structural Behavior of Resilient Materials Subjected to Short-Term Load and Long-Term Load," International Journal of Engineering and Technology vol. 6, no. 1, pp. 536-540, 2014.