公开(公告)号：US20200062645A1

公开(公告)日：2020-02-27

申请号：US16545012

申请日：2019-08-20

Applicant: The Catholic University of America

Inventor： Weiliang GONG ,  Hui XU ,  Werner LUTZE ,  Ian L. PEGG

IPC: C04B18/08 ,  C04B7/06 ,  C04B12/00 ,  C04B14/36 ,  C04B14/26 ,  C04B18/06 ,  C04B18/16

Abstract: An embodiment includes a Class C fly ash (CFA) cementitious composition with a controllable setting time comprising at least one Class C fly ash; at least one alkali hydroxide; at least one source of phosphate; and water. Alternate embodiments include a Class C fly ash (CFA) cementitious composition with a solid activator comprising at least one Class C fly ash; at least one alkali carbonate; at least one source of phosphate; and water.

公开(公告)号：US20170334779A1

公开(公告)日：2017-11-23

申请号：US15597227

申请日：2017-05-17

Applicant: The Catholic University of America

Inventor： Weiliang GONG ,  Hui XU ,  Werner LUTZE ,  Ian PEGG

IPC: C04B28/00 ,  C04B22/08 ,  C04B24/26 ,  C09K8/42 ,  E21B33/14 ,  C04B22/06 ,  C04B14/22 ,  C04B103/22 ,  C04B103/12 ,  C04B103/32 ,  C04B111/00

CPC classification number: C04B28/006 ,  C04B14/22 ,  C04B22/062 ,  C04B22/08 ,  C04B24/26 ,  C04B2103/12 ,  C04B2103/22 ,  C04B2103/32 ,  C04B2111/00146 ,  C09K8/42 ,  C09K8/467 ,  E21B33/14 ,  Y02P40/165 ,  Y02W30/92 ,  Y02W30/94 ,  Y02W30/95 ,  C04B12/04 ,  C04B18/08 ,  C04B2103/24 ,  C04B14/047 ,  C04B14/062 ,  C04B14/106 ,  C04B14/14 ,  C04B14/18 ,  C04B18/141 ,  C04B18/146 ,  C04B18/162 ,  C04B22/066 ,  C04B22/008

Abstract: Three pumpable geopolymer compositions for well sealing application is disclosed herein. One pumpable geopolymer composition comprises: (i) less reactive aluminosilicate; (ii) more reactive aluminosilicate; (iii) alkaline silicate activator solution with a very low SiO2/M2O. Another pumpable geopolymer composition comprises: (i) less reactive aluminosilicate; (ii) more reactive aluminosilicate; (iii) alkaline silicate-free activator solution that may contain an alkali salt; and (iv) powdered alkali silicate glass. The third pumpable geopolymer composition comprises (i) less reactive aluminosilicate; (ii) more reactive aluminosilicate; (iii) alkaline low silicate activator solution; and (iv) powdered alkali silicate glass.

公开(公告)号：US20190084882A1

公开(公告)日：2019-03-21

申请号：US16190422

申请日：2018-11-14

Applicant: The Catholic University of America

Inventor： Weiliang GONG ,  Hui XU ,  Werner LUTZE ,  Ian L. PEGG

IPC: C04B28/00 ,  C04B18/08 ,  C04B18/06 ,  C04B18/16 ,  C04B14/10 ,  C04B20/00 ,  C04B22/06 ,  C04B40/06

Abstract: The present disclosure provides a geopolymer composition having a controllable setting time comprising: at least one reactive aluminosilicate; at least one retarder; and at least one alkali silicate activator solution.