Patent SG-11201407892R-A (SG)
Title: Cementitious binders, activators and methods for making concrete
Inventor: BALL DAVID MARTIN JAMES
IPC: C04B28/28
Filed: 2013-05-31
Abstract: (12) INTERNATIONAL APPLICATION PUBLISHED UNDER THE PATENT COOPERATION TREATY (PCT) (19) World Intellectual Property Organization International Bureau „ (10) International Publication Number (43) International Publication Date ^ ^ WO 2013/179065 A1 5 December 2013 (05.12.2013) WIPO I PCT (51) International Patent Classification: C04B 28/08 (2006.01) (21) International Application Number: PCT/GB2013/051467 31 May 2013 (31.05.2013) (22) International Filing Date: (25) Filing Language: English (26) Publication Language: English (30) Priority Data: 1209867.9 1 June 2012 (01.06.2012) GB 1209865.3 1 June 2012 (01.06.2012) GB PCT/GB2012/051699 16 July 2012 (16.07.2012) GB (71) Applicant: DAVID BALL GROUP PLC [GB/GB]; Wel­ lington Way, Bourn Airfield, Cambridge, Cambridgeshire CB23 2TQ (GB). (72) Inventors: BALL, David Martin James; Freckenham House, Freckenham, Bury St Edmunds, Suffolk IP28 8HX (GB). LISKA, Martin; 6 Cross Street, Cambridge, Cam­ bridgeshire CB1 2HW (GB). HEWLETT, Peter; 23 Lyn- wood Heights, Chorleywood, Rickmansworth, Hertford­ shire WD3 4ED (GB). (74) Agent: GOODMAN, Simon John Nye; Reddie & Grose LLP, 16 Theobalds Road, London, Greater London WC1X 8PL (GB). (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, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IS, JP, KE, KG, KN, KP, KR, KZ, LA, LC, LK, LR, LS, LT, 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, 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, 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). Published: — with international search report (Art. 21(3)) — with amended claims (Art. 19(1)) o 0\ ^ (54) Title: CEMENTITIOUS BINDERS, ACTIVATORS AND METHODS FOR MAKING CONCRETE 5 (57) Abstract: A cementitious binder comprises at least 90 % by weight of a hydraulically- active material comprising ground gran- C^l ulated blast furnace slag (GGBS) and/or pulverised fuel ash (PFA), and at least 0.1 % by weight of CaO in an activator composition for the hydraulically-active material. The cementitious binder does not comprise any Portland cement and is, therefore, more envir- (5T onmentally friendly. The binder further comprises a superplasticiser such as a polycarboxylate ether (PCE). A concrete, mortar, 5- grout, screed or render may be formed from a mixture of the cementitious binder, aggregate particles, water and superplasticiser.