Preprint Article Version 1 Preserved in Portico This version is not peer-reviewed

Experimental Analysis of the Lightweight Fire-Rated Board on the Fire Resistance, Mechanical and Acoustic Properties

Version 1 : Received: 20 May 2023 / Approved: 23 May 2023 / Online: 23 May 2023 (07:37:19 CEST)

A peer-reviewed article of this Preprint also exists.

Yew, M.C.; Yew, M.K.; Yuen, R.K.K. Experimental Analysis of Lightweight Fire-Rated Board on Fire Resistance, Mechanical, and Acoustic Properties. Fire 2023, 6, 221, doi:10.3390/fire6060221. Yew, M.C.; Yew, M.K.; Yuen, R.K.K. Experimental Analysis of Lightweight Fire-Rated Board on Fire Resistance, Mechanical, and Acoustic Properties. Fire 2023, 6, 221, doi:10.3390/fire6060221.

Abstract

Using lightweight fire-rated board (LFRB) presents cost-effective opportunities for various passive fire protection measures. The aim of the project is to develop a LFRB with enhanced fire resistance, acoustic properties, and mechanical properties. These properties were determined using the Bunsen burner, furnace, energy dispersive X-Ray, impedance tube instrument, and Instron universal testing machine. To fabricate the LFRBs, vermiculite and perlite were blended with flame-retardant bind-ers, and four types of LFRBs were produced. A fire test was conducted to compare the fire-resistance performance of the LFRBs with a commercially available flame retardant board. The B2 prototype showed exceptional fire-resistant properties, with a temperature reduction of up to 73.0 °C as compared to the commercially available fire-rated magnesium board. Incorporating nano chicken eggshell into the specially formulated flame-retardant binder preserved the LFRBs’ structural integrity, enabling them to withstand fire for up to 120 minutes with an equilibrium temperature of 92.6 °C. This approach also provided an absorption coefficient of α = 2.0, a high flexural strength of 3.54 MPa, and effective flame retardancy properties with a low oxygen/carbon ratio of 2.60. These results make the LFRBs valuable for passive fire protection applications in the construction and building materials industry.

Keywords

Lightweight; Fire Resistant Board, Intumescent, Passive Fire Protection

Subject

Engineering, Other

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