Effect of viscoelastic polymer on damping properties of precast concrete panel

Khemapat Tontiwattanakul; Jirawin Sanguansin; Vatanavongs Ratanavaraha; Vanchai Sata; Suchart Limkatanyu; Piti Sukontasukkul

doi:10.1016/j.heliyon.2021.e06967

Effect of viscoelastic polymer on damping properties of precast concrete panel

Heliyon. 2021 May 5;7(5):e06967. doi: 10.1016/j.heliyon.2021.e06967. eCollection 2021 May.

Authors

Khemapat Tontiwattanakul¹, Jirawin Sanguansin², Vatanavongs Ratanavaraha³, Vanchai Sata⁴, Suchart Limkatanyu⁵, Piti Sukontasukkul²

Affiliations

¹ Sound and Vibration Engineering Research Group, Department of Mechanical and Aerospace Engineering, Faculty of Engineering, King Mongkut's University of Technology North Bangkok, Thailand.
² Construction and Building Materials Research Center, Department of Civil Engineering, Faculty of Engineering, King Mongkut's University of Technology North Bangkok, Thailand.
³ School of Transportation Engineering, Suranaree University of Technology, Nakhon Ratchasima, Thailand.
⁴ Sustainable Infrastructure Research and Development Center, Depertment of Civil Engineering, Faculty of Engineering, Khon Kaen University, Khon Kaen, Thailand.
⁵ Department of Civil Engineering, Faculty of Engineering, Prince of Songkla University, Hat Yai, Songkhla, Thailand.

Abstract

Precast concrete system has been widely used in modern day constructions due to its high efficiency in both production time and cost. However, because of the way it is constructed (with flat and dense surface), problems with sound reflection and transmission often exist. It is known that increasing of damping property of materials can reduce the transmission of impact sound and vibration which could lead to an improvement in sound insulation performance. In this study, a type of Viscoelastic Polymer Sheet (VPS) was introduced and attached to concrete precast panels with an aim to improve damping property of precast concrete panels. Seven precast concrete specimens with various patterns and attachment position of VPS were prepared. Effect of patterns and locations of attaching VPS on damping property are investigated and discussed.

Keywords: Damping; Precast concrete; Sound insulation; Viscoelastic polymer.