公开(公告)号：US11746048B2

公开(公告)日：2023-09-05

申请号：US16944587

申请日：2020-07-31

申请人： ROMAN CEMENT, LLC

发明人： John M. Guynn

IPC分类号： C04B7/13 ,  C04B7/00 ,  C04B7/02 ,  C04B7/147 ,  C04B7/26 ,  C04B7/28 ,  C04B40/00 ,  C04B20/02

CPC分类号： C04B7/13 ,  C04B7/02 ,  C04B7/147 ,  C04B7/26 ,  C04B7/28 ,  C04B20/026 ,  C04B40/0042 ,  C04B2201/50

摘要： Method of efficiently manufacturing cement-SCM compositions having improved strength compared to cement-SCM compositions made using conventional methods. The cement-SCM compositions may contain: (A) a fine interground particulate component with (1) a hydraulic cement fraction and (2) a supplementary cementitious material (SCM) fraction; (B) a coarse particulate component comprised of coarse SCM particles not interground with the fine interground particulate component; and optionally (C) an auxiliary particulate component not interground with the fine interground particulate component or the coarse particulate component. A method of manufacturing a cement-SCM composition may be performed by: (A) intergrinding hydraulic cement (e.g., cement clinker) with one or more SCMs to form a fine interground particulate component; (B) blending, without intergrinding, the fine interground particulate component with a coarse particulate component comprised of coarse SCM particles; and optionally (C) further combining, without intergrinding, an auxiliary particulate component with the fine interground particulate component and the coarse particulate component.

公开(公告)号：USRE49415E1

公开(公告)日：2023-02-14

申请号：US16293656

申请日：2019-03-06

申请人： ROMAN CEMENT, LLC

发明人： John M. Guynn ,  Andrew S. Hansen

IPC分类号： C04B7/34 ,  C04B7/02 ,  C04B7/14 ,  C04B7/26 ,  C04B7/38 ,  C04B20/00 ,  C04B20/02 ,  C04B28/04

摘要： Cement-SCM blends employ particle packing principles to increase particle packing density and reduce interstitial spacing between the cement and SCM particles. Particle packing reduces the amount of water required to obtain a cement paste having a desired flow, lowers the water-cementitious material ratio (w/cm), and increases early and long-term strengths. This may be accomplished by providing a hydraulic cement fraction having a narrow PSD and at least one SCM fraction having a mean particle size that differs from the mean particle size of the narrow PSD cement by a multiple of 3.0 or more to yield a cement-SCM blend having a particle packing density of at least 57.0%.

公开(公告)号：US10737980B2

公开(公告)日：2020-08-11

申请号：US16180323

申请日：2018-11-05

申请人： ROMAN CEMENT, LLC

发明人： John M. Guynn

IPC分类号： C04B28/08 ,  C04B28/10 ,  C04B28/16 ,  C04B24/12 ,  C04B22/08 ,  C04B24/32 ,  C04B7/52 ,  C04B20/00 ,  C04B28/04 ,  C04B103/10 ,  C04B103/32

摘要： Quarry fines and/or limestone powder are used to reduce clinker content in concrete, mortar and other cementitious compositions, typically in combination with one or more pozzolanically active SCMs. Quarry fines and/or limestone powder can replace and/or augment a portion of hydraulic cement binder and/or fine aggregate. Quarry fines and/or limestone powder can advantageously replace a portion of cement binder and fine aggregate, acting as an intermediate that fills a particle size void between the largest cement particles and smallest fine aggregate particles. Supplemental lime can advantageously maintain or enhance balance of calcium ions in the mix water and/or pore solution. Supplemental sulfate can advantageously address sulfate deficiencies caused by high clinker reduction, use of water reducers and/or superplasticers, and SCMs containing aluminates. Such systematic approach to beneficially using quarry fines, limestone powder, SCMs, lime, and sulfate addresses many issues and permits high clinker reduction with similar or increased strength.

公开(公告)号：US10526248B2

公开(公告)日：2020-01-07

申请号：US15951108

申请日：2018-04-11

申请人： ROMAN CEMENT, LLC

发明人： John M. Guynn

IPC分类号： C04B28/04 ,  C04B14/42 ,  C04B20/00

摘要： A cementitious composition includes (i) white Portland cement having a fineness of about 350-550 m2/kg, D90 between about 11-50 μm, and total combined iron oxide, manganese oxide, and chromium oxide

公开(公告)号：US20150144030A1

公开(公告)日：2015-05-28

申请号：US14602869

申请日：2015-01-22

申请人： Roman Cement, LLC

发明人： John M. Guynn ,  Andrew S. Hansen

IPC分类号： C04B7/34 ,  C04B7/02 ,  C04B7/14 ,  C04B7/26

CPC分类号： C04B7/34 ,  C04B7/02 ,  C04B7/14 ,  C04B7/26 ,  C04B7/38 ,  C04B20/008 ,  C04B20/026 ,  C04B28/04 ,  Y02P40/146 ,  Y02W30/92 ,  Y02W30/94 ,  C04B14/28 ,  C04B18/08 ,  C04B18/141 ,  C04B18/146 ,  C04B2103/0088

摘要： Cement-SCM blends employ particle packing principles to increase particle packing density and reduce interstitial spacing between the cement and SCM particles. Particle packing reduces the amount of water required to obtain a cement paste having a desired flow, lowers the water-cementitious material ratio (w/cm), and increases early and long-term strengths. This may be accomplished by providing a hydraulic cement fraction having a narrow PSD and at least one SCM fraction having a mean particle size that differs from the mean particle size of the narrow PSD cement by a multiple of 3.0 or more to yield a cement-SCM blend having a particle packing density of at least 57.0%.

摘要翻译： 水泥 - SCM混合物采用颗粒包装原理来增加颗粒填充密度并减少水泥和SCM颗粒之间的间隙。 颗粒填充减少获得具有所需流动性的水泥浆所需的水量，降低水 - 水泥材料比（w / cm），并增加早期和长期强度。 这可以通过提供具有窄PSD的水硬性水泥部分和至少一种具有与窄PSD胶泥的平均粒度不同的平均粒度的SCM部分的倍数为3.0以上，以产生水泥-SMM 混合物的颗粒填充密度为至少57.0％。

公开(公告)号：US20130192493A1

公开(公告)日：2013-08-01

申请号：US13798756

申请日：2013-03-13

申请人： Roman Cement LLC

发明人： John M. Guynn ,  Andrew S. Hansen

IPC分类号： C04B14/06 ,  C04B38/00 ,  C04B2/02 ,  C04B7/26 ,  C04B7/28

CPC分类号： C04B14/06 ,  B02C21/00 ,  B02C23/12 ,  B02C23/14 ,  C04B2/02 ,  C04B7/26 ,  C04B7/28 ,  C04B7/527 ,  C04B28/04 ,  C04B38/00 ,  C09K8/46 ,  Y02P40/18 ,  Y02P40/20 ,  Y02W30/92 ,  C04B14/106 ,  C04B14/185 ,  C04B14/22 ,  C04B14/28 ,  C04B18/06 ,  C04B2103/0088

摘要： Hydraulic cements, such as Portland cements and other cements that include substantial quantities of tricalcium silicate (C3S), dicalcium silicate (C2S), tricalcium aluminate (C3A), and/or tetracalcalcium alumino-ferrite (C4AF), are particle size optimized to have increased reactivity compared to cements of similar chemistry and/or decreased water demand compared to cements of similar fineness. Increasing hydraulic cement reactivity increases early strength development and release of reactive calcium hydroxide, both of which enhance SCM replacement and 1-28 day strengths compared to blends of conventional Portland cement and one or more SCMs, such as coal ash, slag or natural pozzolan. Decreasing the water demand can improve strength by decreasing the water-to-cement ratio for a given workability. The narrow PSD cements are well suited for making blended cements, including binary, ternary and quaternary blends.

摘要翻译： 包括大量硅酸三钙（C3S），硅酸二钙（C2S），铝酸三钙（C3A）和/或四钙铝铁氧体（C4AF）等水泥水泥，其中包括大量硅酸钙 与类似化学物质的水泥相比，和相似细度的水泥相比，反应性增加。 与常规波特兰水泥与一种或多种SCM（如煤灰，矿渣或天然火山灰）的混合物相比，增加水硬性水泥反应性增加了反应性氢氧化钙的早期强度开发和释放，两者都增强了SCM替代和1-28天的强度。 降低用水需求可以通过降低给定可加工性的水与水泥比来提高强度。 窄PSD水泥非常适合制作混合水泥，包括二元，三元和四元混合。

公开(公告)号：US20230406764A1

公开(公告)日：2023-12-21

申请号：US18242445

申请日：2023-09-05

申请人： ROMAN CEMENT, LLC

发明人： John M. GUYNN

IPC分类号： C04B7/13 ,  C04B7/02 ,  C04B7/26 ,  C04B7/147 ,  C04B40/00 ,  C04B20/02 ,  C04B7/28

CPC分类号： C04B7/13 ,  C04B7/02 ,  C04B7/26 ,  C04B7/147 ,  C04B40/0042 ,  C04B20/026 ,  C04B7/28 ,  C04B2201/50

摘要： A method of manufacturing an activated pozzolan composition includes: (i) grinding a natural pozzolan, alone or with another mineral component that is not cement clinker, to form a finely ground pozzolan component having a first d90 in a range of about 10 μm to about 45 μm and a first d10 less than about 5 μm; and (ii) blending, without intergrinding, the finely ground pozzolan component with a coarse particulate mineral component comprised of coarse mineral particles not interground with the fine interground particulate component, the coarse particulate component having a second d90 greater than the first d90 and a second d10 greater than the first d10. The natural pozzolan can be one or more of natural pozzolanic deposits, volcanic ash, metakaolin, shale dust, calcined clay, trass, and pumice.

公开(公告)号：US20220106227A1

公开(公告)日：2022-04-07

申请号：US17551870

申请日：2021-12-15

申请人： ROMAN CEMENT, LLC

发明人： John M. Guynn ,  Andrew S. Hansen

IPC分类号： C04B18/08 ,  C04B40/00 ,  C04B18/14 ,  C04B28/04

摘要： Methods for producing a blended pozzolan having one or more characteristics, such as one or more chemical and/or physical characteristic, in an established amount or range from two or more different pozzolans. Two or more pozzolans having different chemical and/or physical characteristics can be blended together and a chemical analyzer used to determine a chemical and/or physical characteristic of the blended pozzolan. Upon determining that the chemical and/or physical characteristic of the blended pozzolan is outside the established amount or range, modifying a blending ratio of the two or more pozzolans to restore the chemical and/or physical characteristic to the established amount or range.

公开(公告)号：US20220017419A1

公开(公告)日：2022-01-20

申请号：US17477199

申请日：2021-09-16

申请人： ROMAN CEMENT, LLC

发明人： John M. Guynn

IPC分类号： C04B28/04 ,  C04B18/14 ,  C04B18/08 ,  C04B18/12 ,  C04B40/02

摘要： Mineral fines reduce OPC content in concrete, mortar and other cementitious compositions, typically in combination with a pozzolanically active SCM. Mineral fines can replace and/or augment a portion of hydraulic cement and/or fine aggregate. Mineral fines can replace a portion of cement binder and fine aggregate as an intermediate that fills a size void between largest cement particles and smallest fine aggregate particles. Supplemental lime can enhance balance of calcium ions in the mix water and/or pore solution. Supplemental sulfate can address sulfate deficiencies caused by high clinker reduction, use of water reducers and/or superplasticizers, and SCMs containing aluminates. Concentrated or pure carbon dioxide (CO2) can be used to passivate alkaline values in highly alkaline materials, such as concrete washout fines, CKD, class C flyash, incinerator ash, bottom ash, or biomass ash. CO2 passivation or sequestration can be carried out before, during or after forming an initial concrete mix.

公开(公告)号：US20190071354A1

公开(公告)日：2019-03-07

申请号：US16180323

申请日：2018-11-05

申请人： ROMAN CEMENT, LLC

发明人： John M. Guynn

IPC分类号： C04B28/08 ,  C04B28/10 ,  C04B28/16 ,  C04B24/32 ,  C04B24/12 ,  C04B22/08

CPC分类号： C04B28/08 ,  C04B7/527 ,  C04B20/008 ,  C04B22/085 ,  C04B24/121 ,  C04B24/32 ,  C04B28/04 ,  C04B28/10 ,  C04B28/16 ,  C04B2103/10 ,  C04B2103/32 ,  C04B14/28 ,  C04B18/141 ,  C04B22/064 ,  C04B22/143 ,  C04B18/08 ,  C04B18/12 ,  C04B22/147 ,  C04B24/2647 ,  C04B7/12 ,  C04B7/02

摘要： Quarry fines and/or limestone powder are used to reduce clinker content in concrete, mortar and other cementitious compositions, typically in combination with one or more pozzolanically active SCMs. Quarry fines and/or limestone powder can replace and/or augment a portion of hydraulic cement binder and/or fine aggregate. Quarry fines and/or limestone powder can advantageously replace a portion of cement binder and fine aggregate, acting as an intermediate that fills a particle size void between the largest cement particles and smallest fine aggregate particles. Supplemental lime can advantageously maintain or enhance balance of calcium ions in the mix water and/or pore solution. Supplemental sulfate can advantageously address sulfate deficiencies caused by high clinker reduction, use of water reducers and/or superplasticers, and SCMs containing aluminates. Such systematic approach to beneficially using quarry fines, limestone powder, SCMs, lime, and sulfate addresses many issues and permits high clinker reduction with similar or increased strength.