公开(公告)号：US11655186B2

公开(公告)日：2023-05-23

申请号：US16241994

申请日：2019-01-08

申请人： ROMAN CEMENT, LLC

发明人： John M. Guynn

IPC分类号： C04B7/00 ,  C04B7/13 ,  C04B7/02 ,  C04B7/147 ,  C04B7/26 ,  C04B7/28 ,  C04B7/34 ,  C04B28/00 ,  C04B32/00 ,  C04B14/00 ,  C04B18/06

CPC分类号： C04B7/13 ,  C04B7/02 ,  C04B7/147 ,  C04B7/26 ,  C04B7/28 ,  C04B2201/50

摘要： An activated pozzolan composition includes a fine interground particulate blend of an initially unactivated natural pozzolan and a supplementary cementitious material (SCM) different than the initially unactivated natural pozzolan. The initially unactivated natural pozzolan may include volcanic ash or other natural pozzolanic deposit having a moisture content of at least 3%, and the activated pozzolan composition can have a moisture content less than 0.5% The initially unactivated natural pozzolan may have a particle size less than 1 mm before intergrinding with the SCM. The SCM used to activate the initially unactivated natural pozzolan can be initially coarse or granular with a size greater than 1-3 μm and may include granulated blast furnace slag, steel slag, other metallurgical slag, pumice, limestone, fine aggregate, shale, tuff, trass, geologic material, waste glass, glass shards, basalt, sinters, ceramics, recycled bricks, recycled concrete, refractory materials, other waste industrial products, sand, or natural mineral.

公开(公告)号：US10968137B1

公开(公告)日：2021-04-06

申请号：US15967227

申请日：2018-04-30

申请人： ROMAN CEMENT, LLC

发明人： John M. Guynn

IPC分类号： C04B7/26 ,  C04B28/04 ,  B07B11/00 ,  B07B4/00 ,  B07B7/00

摘要： A non-conforming fly ash is converted into conforming fly ash by: (1) obtaining an initial fly ash with at least one non-conforming characteristic selected from excess carbon or low reactivity index as defined by ASTM C-618 and having a D10, D50 and D90; (2) classifying the initial fly ash using one or more air classifiers to produce at least two separate fly ash streams, including fine fly ash and coarse fly ash; and (3) collecting the fine fly ash and the coarse fly ash, (4) the fine fly ash having a D90 approximately equal to or less than the D50 of the initial fly ash and a conforming carbon content and a conforming reactivity index as defined by ASTM C-618.

公开(公告)号：US10730805B2

公开(公告)日：2020-08-04

申请号：US16028398

申请日：2018-07-05

申请人： ROMAN CEMENT, LLC

发明人： John M. Guynn

IPC分类号： C04B40/00 ,  C04B28/04 ,  C04B18/12 ,  C04B14/28 ,  C04B28/08 ,  C04B7/52

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：US10131575B2

公开(公告)日：2018-11-20

申请号：US15866455

申请日：2018-01-09

申请人： ROMAN CEMENT, LLC

发明人： John M. Guynn

IPC分类号： C04B7/02 ,  C04B2/02 ,  C04B14/28 ,  C04B18/14 ,  C04B18/08 ,  C04B18/12 ,  C04B18/02 ,  C04B103/10

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：US09957196B1

公开(公告)日：2018-05-01

申请号：US15598132

申请日：2017-05-17

申请人： ROMAN CEMENT, LLC

发明人： John M. Guynn

IPC分类号： C04B18/14 ,  C04B28/04 ,  C04B14/28 ,  C04B16/06 ,  C04B24/26 ,  C04B18/04 ,  C04B14/06 ,  C04B14/16 ,  C04B14/42 ,  C04B18/08

CPC分类号： C04B18/141 ,  C04B14/06 ,  C04B14/16 ,  C04B14/28 ,  C04B14/42 ,  C04B16/0641 ,  C04B18/0481 ,  C04B18/08 ,  C04B24/26 ,  C04B28/04

摘要： A cementitious composition includes (i) white Portland cement having a Blaine fineness between about 350 m2/kg and about 550 m2/kg, a D90 between about 11 μm and about 50 μm, and a total combined iron oxide, manganese oxide, and chromium oxide content of less than 1.0% by weight and (ii) a light color ground granulated blast furnace slag (GGBFS) having a Blaine fineness greater than the Blaine fineness of the white Portland cement, a D90 less than the D90 of the white Portland cement, and a total combined iron oxide, manganese oxide, and chromium oxide content of less than 2.0% by weight. The cementitious composition may optionally include at least one of additional SCM, aggregate, fibers, or admixture. The cementitious composition can be a dry blend, a fresh cementitious mixture, or hardened cementitious composition. The cementitious composition can be precast concrete, stucco, GFRC, UHPC or SCC.

公开(公告)号：US20180037501A1

公开(公告)日：2018-02-08

申请号：US15550722

申请日：2015-06-29

申请人： ROMAN CEMENT, LLC

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

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

CPC分类号： C04B18/08 ,  C04B18/141 ,  C04B28/04 ,  C04B40/0032 ,  C04B40/0039 ,  C04B40/0042 ,  Y02W30/92 ,  Y02W30/94 ,  C04B2103/0088 ,  C04B7/12 ,  C04B18/06 ,  C04B18/10 ,  C04B18/142 ,  C04B18/146

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：US09272953B2

公开(公告)日：2016-03-01

申请号：US14305954

申请日：2014-06-16

申请人： Roman Cement, LLC

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

IPC分类号： C04B28/26 ,  C04B14/00 ,  C04B18/06 ,  C04B7/14 ,  C04B7/19 ,  C04B11/00 ,  C04B7/00 ,  C04B28/04 ,  C04B7/52 ,  C04B20/00 ,  C04B7/12 ,  C04B28/02 ,  C04B111/00

CPC分类号： C04B28/04 ,  C04B7/02 ,  C04B7/12 ,  C04B7/527 ,  C04B20/008 ,  C04B20/0088 ,  C04B20/0096 ,  C04B28/02 ,  C04B28/021 ,  C04B2111/00215 ,  C04B2111/2015 ,  Y02P40/18 ,  Y02P40/20 ,  Y02W30/92 ,  Y02W30/94 ,  C04B14/10 ,  C04B14/108 ,  C04B14/22 ,  C04B18/06 ,  C04B18/08 ,  C04B18/141 ,  C04B2103/0088 ,  C04B40/0042

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：US20240174565A1

公开(公告)日：2024-05-30

申请号：US18432485

申请日：2024-02-05

申请人： ROMAN CEMENT, LLC

发明人： John M. Guynn

IPC分类号： C04B14/02 ,  C04B7/13

CPC分类号： C04B14/02 ,  C04B7/13

摘要： Performance-enhancing particulate premixes contain mineral fines treated with one or more performance-enhancing additives. Also disclosed are methods of manufacturing performance-enhancing particulate premixes and cementitious compositions that incorporate such performance-enhancing particulate premixes, a hydraulic cement binder, and optionally one or more supplementary cementitious materials (SCMs). The cementitious compositions can be dry cementitious compositions, fresh cementitious compositions (e.g., mixed with water to form a shapable mix), and hardened cementitious compositions (e.g., that contained hydrated cement). The performance-enhancing particulate premix can be formulated and manufactured to offset an increase in water demand and increase flow when used to replace a portion of Portland cement in concrete. For example, mineral fines are treated to yield performance-enhancing particulate premixes comprising one or more types of mineral fines and one or more types of water reducers.

公开(公告)号：US11472737B1

公开(公告)日：2022-10-18

申请号：US17185112

申请日：2021-02-25

申请人： ROMAN CEMENT, LLC

发明人： John M. Guynn

IPC分类号： C04B18/08 ,  C04B14/14 ,  C04B22/14 ,  C04B40/00 ,  C04B28/04 ,  C04B22/06

摘要： A non-conforming (or barely conforming) fly ash is converted into conforming (or better conforming) fly ash by: (1) obtaining an initial fly ash with at least one non-conforming (or barely conforming) characteristic selected from excess carbon content, low strength activity index, or low SAF as defined by ASTM C-618 and having a D10, D50 and D90; (2) classifying the initial fly ash using one or more air classifiers to produce at least two separate fly ash streams, including fine fly ash and coarse fly ash; (3) collecting the fine fly ash and the coarse fly ash, the fine fly ash having a D90 less than the D90 of the initial fly ash; (4) combining the fine fly ash with an aluminosilicate source to form a modified fly ash having a conforming carbon content, a conforming reactivity index, and a conforming SAF as defined by ASTM C-618.

公开(公告)号：US20220106235A1

公开(公告)日：2022-04-07

申请号：US17553379

申请日：2021-12-16

申请人： ROMAN CEMENT, LLC

发明人： John M. Guynn

IPC分类号： C04B40/00 ,  C04B28/04 ,  C04B28/10 ,  B02C23/08 ,  C04B28/18

摘要： Methods and systems for efficiently manufacturing particulate blending materials for use in making particle size optimized cements, SCMs, blended cements and cement-SCM blends. An initial hydraulic cement or SCM having an initial particle size distribution (PSD), an initial d10, and an initial d90 is processed using one or more air classifiers, and optionally one or more mills, to yield a plurality of hydraulic cement or SCM fractions having desired particle size distributions (PSDs). The hydraulic cement fractions can be blended with SCMs to form binary and ternary cement-SCM blends. The SCM fractions can also be used to make binary and ternary blends. A surplus fine cement fraction can be used to raise the fineness and/or reactivity of a less fine and/or less reactive hydraulic cement. A surplus fine SCM can be used as a silica fume substitute.