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公开(公告)号:WO2008021966A3
公开(公告)日:2008-02-21
申请号:PCT/US2007/075602
申请日:2007-08-09
申请人: W.R. GRACE & CO.-CONN. , BERKE, Neal, S. , JARDINE, Leslie, A. , GUPTA, Vijay , CORNMAN, Charles, R. , ALDYKIEWICZ, Antonio, J., Jr. , LATOSIEWICZ, Urszula, B. , JACHIMOWICZ, Felek , SUBRAMANIAN, Durga, V.
发明人: BERKE, Neal, S. , JARDINE, Leslie, A. , GUPTA, Vijay , CORNMAN, Charles, R. , ALDYKIEWICZ, Antonio, J., Jr. , LATOSIEWICZ, Urszula, B. , JACHIMOWICZ, Felek , SUBRAMANIAN, Durga, V.
IPC分类号: C04B22/12
摘要: Methods and compositions involving the use of nitrogen-containing coordinated metal compounds for stabilizing chromium Vl reducing metal cations. Exemplary uses include processes for making cement, and exemplary compositions include cement additives, concrete admixtures, as well as hydratable cement and cementitous compositions.
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公开(公告)号:WO2010074811A1
公开(公告)日:2010-07-01
申请号:PCT/US2009/062712
申请日:2009-10-30
申请人: W. R. GRACE & CO.-CONN. , SILVA, Denise, A. , CHEUNG, Josephine , SANDBERG, Paul , ROBERTS, Lawrence, R. , SUBRAMANIAN, Durga, V. , GALLAGHER, John, L. , KUO, Lawrence, L.
发明人: SILVA, Denise, A. , CHEUNG, Josephine , SANDBERG, Paul , ROBERTS, Lawrence, R. , SUBRAMANIAN, Durga, V. , GALLAGHER, John, L. , KUO, Lawrence, L.
CPC分类号: C04B28/04 , C04B18/08 , Y02W30/92 , C04B20/023 , C04B20/04 , C04B22/106 , C04B2103/12 , C04B2103/22 , C04B2103/304 , C04B2103/32 , C04B2103/408 , C04B2103/44 , C04B2103/50 , C04B2103/58 , C04B2103/61 , C04B22/0013 , C04B22/14 , C04B22/16 , C04B24/06 , C04B24/10 , C04B24/18
摘要: Method for suppressing antagonistic hydration reactions in Portland fly ash cement involves the use of unponded fly ash that is pre-hydrated, preferably as an aqueous slurry wherein fly ash, preferably having an alkaline earth metal oxide of at least 10% by weight, is soaked, whereby the hydration reaction of the resultant mixed fly ash and cement is accelerated when these components are mixed together with water to hydrate the cement. Blended Portland cement/fly ash compositions of the invention will also have higher early strength as well as shorter set time compared to untreated blends.
摘要翻译: 在波特兰飞灰水泥中抑制拮抗水合反应的方法包括使用预水合的未反应的飞灰,优选作为含水浆料,其中优选具有至少10重量%的碱土金属氧化物的粉煤灰浸泡 由此当这些组分与水混合在一起以使水泥混合时,所得到的混合粉煤灰和水泥的水合反应加速。 本发明的混合波特兰水泥/粉煤灰组合物与未处理的混合物相比也具有较高的早期强度以及更短的凝固时间。
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公开(公告)号:WO2008021966A2
公开(公告)日:2008-02-21
申请号:PCT/US2007075602
申请日:2007-08-09
申请人: GRACE W R & CO , BERKE NEAL S , JARDINE LESLIE A , GUPTA VIJAY , CORNMAN CHARLES R , ALDYKIEWICZ ANTONIO J JR , LATOSIEWICZ URSZULA B , JACHIMOWICZ FELEK , SUBRAMANIAN DURGA V
发明人: BERKE NEAL S , JARDINE LESLIE A , GUPTA VIJAY , CORNMAN CHARLES R , ALDYKIEWICZ ANTONIO J JR , LATOSIEWICZ URSZULA B , JACHIMOWICZ FELEK , SUBRAMANIAN DURGA V
IPC分类号: C04B28/02
CPC分类号: C04B22/142 , C04B24/121 , C04B2103/0086 , C04B2111/1081
摘要: Methods and compositions involving the use of nitrogen-containing coordinated metal compounds for stabilizing chromium Vl reducing metal cations. Exemplary uses include processes for making cement, and exemplary compositions include cement additives, concrete admixtures, as well as hydratable cement and cementitous compositions.
摘要翻译: 涉及使用含氮配位金属化合物来稳定铬VI还原金属阳离子的方法和组合物。 示例性的用途包括制造水泥的方法,示例性的组合物包括水泥添加剂,混凝土外加剂以及可水合的水泥和水泥组合物。
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