公开(公告)号：US6048393A

公开(公告)日：2000-04-11

申请号：US85379

申请日：1998-05-26

申请人： Josephine Ho-wah Cheung ,  David Francis Myers

发明人： Josephine Ho-wah Cheung ,  David Francis Myers

IPC分类号： C04B24/12 ,  C04B28/04

CPC分类号： C04B40/0039 ,  C04B24/122 ,  C04B28/04 ,  C04B2201/05

摘要： This invention relates to enhancing the compressive strength of cements after 1, 3, 7 and 28 days following hydration and to improving porosity and finished surfaces of the hardened cements and concretes made therefrom. The improved cements are prepared using certain hydroxylamine additives in amounts of up to 0.1% which preferably are added during grinding of the cement in which case the amines further act as grinding aids.

摘要翻译： 本发明涉及提高水合后1,3,7和28天之后水泥的抗压强度，以及改善由其制成的硬化水泥和混凝土的孔隙率和最终表面。 使用某些羟胺添加剂的量可高达0.1％，优选在水泥研磨过程中加入改进的水泥，在这种情况下胺还可作为助磨剂。

公开(公告)号：US06290772B1

公开(公告)日：2001-09-18

申请号：US09524803

申请日：1999-09-30

申请人： Josephine Ho-wah Cheung ,  David Francis Myers

发明人： Josephine Ho-wah Cheung ,  David Francis Myers

IPC分类号： C04B2412

CPC分类号： C04B24/122 ,  C04B28/04 ,  Y02W30/92 ,  Y02W30/94 ,  C04B14/06 ,  C04B14/28 ,  C04B22/143 ,  C04B14/14 ,  C04B18/08 ,  C04B18/141

摘要： This invention relates to enhancing the compressive strength of cements after 1, 3, 7 and 28 days following hydration and to improving porosity and finished surfaces of the hardened cements and concretes made therefrom. The improved cements are prepared using certain hydroxylamine additives in amounts of up to 0.1% which preferably are added during grinding of the cement in which case the amines further act as grinding aids.

摘要翻译： 本发明涉及提高水合后1,3,7和28天之后水泥的抗压强度，以及改善由其制成的硬化水泥和混凝土的孔隙率和最终表面。 使用某些羟胺添加剂的量可高达0.1％，优选在水泥研磨过程中加入改进的水泥，在这种情况下胺还可作为助磨剂。