公开(公告)号：US11780774B2

公开(公告)日：2023-10-10

申请号：US17258594

申请日：2019-07-11

Applicant: WASHINGTON STATE UNIVERSITY

Inventor： Taiji Miyasaka ,  David Drake

IPC: C04B18/167 ,  B28B11/04 ,  C04B18/14 ,  C04B18/24 ,  C04B28/08 ,  C04B41/00 ,  C04B41/61 ,  C04B18/16 ,  C04B28/04 ,  C04B28/14

CPC classification number: C04B18/167 ,  B28B11/04 ,  C04B18/142 ,  C04B18/16 ,  C04B18/243 ,  C04B28/04 ,  C04B28/082 ,  C04B28/142 ,  C04B41/009 ,  C04B41/61 ,  C04B2201/30

Abstract: The embodiments herein are directed to dry wall waste mixtures, formed under pressure into example embodiments referred to herein as dry wall waste blocks (DWBs) and/or gypsum wallboard waste blocks (GWWBs) and tile structures. DWBs/GWWBs mixtures in particular, often incorporate a higher percentage in the composite mixtures from about 60% up to 85% of dry wall waste than other mixtures and beneficially often incorporates substantially all of the wallboard facing paper as part of the composite mixture. That is, waste processing is simplified by comingling core and paper layers in the final product. DWBs/GWWBs mixtures utilize demolition and construction waste, replacing a high percentage of Portland cement with waste-derived binder.