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1. (WO2018203829) SUSTAINABLE CONSTRUCTION MATERIAL AND METHOD OF PREPARATION AND USE THEREOF

Pub. No.:    WO/2018/203829    International Application No.:    PCT/SG2018/050206
Publication Date: Fri Nov 09 00:59:59 CET 2018 International Filing Date: Tue May 01 01:59:59 CEST 2018
IPC: C04B 18/10
E04C 2/02
Applicants: NATIONAL UNIVERSITY OF SINGAPORE
Inventors: NG, May Shuan
KUA, Harn Wei
GUPTA, Souradeep
Title: SUSTAINABLE CONSTRUCTION MATERIAL AND METHOD OF PREPARATION AND USE THEREOF
Abstract:
The present invention relates to use of biochar for preparation of construction material. In a first embodiment, a method for preparing a construction material, such as a concrete, is disclosed, wherein said method comprising the steps of combining a binder (i.e. cement), aggregate (i.e. sand) and biochar; adding an aqueous solvent to form a mixture; and allowing the mixture to harden to form said construction material. In a second embodiment, a wadding material comprising the biochar and a method of preparation thereof is disclosed. In a particular embodiment, said wadding material comprising pellets of plaster, clay and/or plastic and the biochar, wherein said pellets are used as fillers in cavities of special interior partition wall panels. The wadding materials were found to be effective in sequestering carbon dioxide from indoor environment.