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Fire-resistant gypsum panel comprising unexpanded perlite ore and method of making same

A technology of gypsum panels and perlite, which is applied in the field of gypsum panels and the production of gypsum panels, and the preparation of gypsum panels, which can solve the problems of expensive, heavy panels, and problems

Active Publication Date: 2021-05-07
GEORGIA PACIFIC GYPSUM LLC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Conventionally, such panels are heavy - weighing more than 2000lbs / mf - and lighter panels may suffer from performance issues and / or require expensive components to achieve certain properties (e.g. physical properties and fire resistance)

Method used

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  • Fire-resistant gypsum panel comprising unexpanded perlite ore and method of making same
  • Fire-resistant gypsum panel comprising unexpanded perlite ore and method of making same
  • Fire-resistant gypsum panel comprising unexpanded perlite ore and method of making same

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Experimental program
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Embodiment

[0119] Embodiments of the gypsum panels disclosed herein were constructed and tested as described below.

[0120] First, 5 / 8 inch drywall samples containing various amounts and particle sizes of unexpanded perlite ore were prepared. According to ASTM C1795-15: Standard Test Methods for High-Temperature Characterization of Gypsum Boards and Panels (Standard Test Methods for High-Temperature Characterization of Gypsum Boards and Panels), and High Temperature Core Integrity Test (High Temperature High temperature shrinkage, high temperature thermal transmittance, and high temperature core cohesion tests outlined in Core Integrity Tests to test samples. High temperature core integrity testing involves heating the conditioned sample panel in an oven for one hour to a predetermined temperature, allowing the sample to cool, and then visually assessing damage to the panel core by measuring the width, height and length of the sample at consistent points on the panel , and weigh the sa...

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PUM

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Abstract

Gypsum panels and methods of making the same are provided. A gypsum panel includes a gypsum core containing set gypsum and unexpanded perlite ore, wherein the unexpanded perlite ore is present in the gypsum core in an amount greater than any other component, other than the gypsum.

Description

[0001] Cross References to Related Applications [0002] This application claims the benefit of priority to U.S. Provisional Patent Application 62 / 738,518, filed September 28, 2019, the disclosure of which is incorporated herein by reference in its entirety. Background technique [0003] The present invention relates generally to the field of panels for building construction, and more particularly to gypsum panels and methods of making gypsum panels. [0004] A typical building panel (such as an interior building panel, building sheathing, or roofing panel) includes a core material (such as gypsum) and a backing (such as a paper or fiberglass backing). During fabrication, the gypsum core material is typically applied as a slurry to the surface of the cladding and allowed to set so that the cladding and gypsum core adhere at the interface. Conventionally, such panels are heavy - weighing more than 2000 lbs / mf - and lighter panels may suffer from performance issues and / or requi...

Claims

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Application Information

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IPC IPC(8): C04B28/14C04B111/28
CPCC04B28/145C04B2111/0062C04B2111/28C04B2111/285C04B14/18C04B20/0076C04B22/16C04B24/2641C04B24/38C04B2111/10C04B14/202B32B13/08B32B2607/00C04B28/14E04C2/043
Inventor 袁永安斯图尔特·布兰登·吉利布赖恩·维尔修斯
Owner GEORGIA PACIFIC GYPSUM LLC