Patent SG-11201909610P-A (SG)
Title: Sustainable construction material and method of preparation and use thereof
Inventor: NG MAY SHUAN
IPC: C04B18/10
Filed: 2018-04-30
Abstract: INTERNATIONAL APPLICATION PUBLISHED UNDER THE PATENT COOPERATION TREATY (PCT) (19) World Intellectual Property Organization International Bureau (43) International Publication Date 08 November 2018 (08.11.2018) WIPO I PCT ill~~~~~~~~ 011101010VIIIOH olo oloionomiolomioluom oimIE (10) International Publication Number WO 2018/203829 Al (51) International Patent Classification: C04B 18/10 (2006.01) E04C 2/02 (2006.01) (21) International Application Number: PCT/SG2018/050206 (22) International Filing Date: 30 April 2018 (30.04.2018) (25) Filing Language: English (26) Publication Language: English (30) Priority Data: 10201703565T 02 May 2017 (02.05.2017) SG (71) Applicant: NATIONAL UNIVERSITY OF SINGA- PORE [SG/SG]; 21 Lower Kent Ridge Road, Singapore 119077 (SG). (72) Inventors: NG, May Shuan; c/o National University of Singapore, School of Design and Environment, Department of Building, 21 Lower Kent Ridge Road, Singapore 119077 (SG). KUA, Ham Wei; c/o National University of Singa- pore, School of Design and Environment, Department of Building, 21 Lower Kent Ridge Road, Singapore 119077 (SG). GUPTA, Souradeep; c/o National University of Sin- gapore, School of Design and Environment, Department of Building, 21 Lower Kent Ridge Road, Singapore 119077 (SG). (74) Agent: CHUNG, Jing Yeng; Marks & Clerk Singapore LLP, Tanjong Pagar, P 0 Box 636, Singapore 910816 (SG). (81) Designated States (unless otherwise indicated, for every kind of national protection available): AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DJ, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IR, IS, JO, JP, KE, KG, KH, KN, KP, KR, KW, KZ, LA, LC, LK, LR, LS, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PA, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, SA, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TH, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW. (84) Designated States (unless otherwise indicated, for every kind of regional protection available): ARIPO (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, TZ, UG, ZM, ZW), Eurasian (AM, AZ, BY, KG, KZ, RU, TJ, TM), European (AL, AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, TR), OAPI (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, KM, ML, MR, NE, SN, TD, TG). Declarations under Rule 4.17: — of inventorship (Rule 4.17(iv)) Published: — with international search report (Art. 21(3)) W O 20 18/ 2038 29 Al (54) Title: SUSTAINABLE CONSTRUCTION MATERIAL AND METHOD OF PREPARATION AND USE THEREOF (57) : 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.