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1.发明授权Cementitious compositions for decreasing the rate of water vapor emissions from concrete and methods for preparing and using the same 有权用于降低混凝土中水蒸气排放速率的水泥组合物及其制备和使用方法公开(公告)号：US09133058B2
公开(公告)日：2015-09-15
申请号：US13062603
申请日：2010-07-15
IPC分类号： C04B14/04 , C04B14/08 , C04B14/28 , C04B16/04 , C04B18/08 , C04B18/14 , C04B20/00 , C04B22/08 , C04B22/12 , C04B24/26 , C04B24/32 , C04B28/02 , C04B103/12 , C04B103/00 , C04B103/32 , C04B103/56
CPC分类号： C04B16/04 , C04B14/043 , C04B14/08 , C04B14/28 , C04B18/08 , C04B18/141 , C04B20/008 , C04B22/085 , C04B22/124 , C04B22/128 , C04B24/2641 , C04B24/32 , C04B28/02 , C04B2103/0088 , C04B2103/12 , C04B2103/32 , C04B2103/58 , Y02P40/146 , Y02W30/92 , Y02W30/94
摘要： Cementitious compositions and processes for preparing and using the cementitious compositions are provided. The cementitious compositions are characterized by the property of a reduced or an attenuated water vapor emission from a cementitious mix and a concrete formed therefrom.
摘要翻译： 提供了水泥组合物和制备和使用水泥组合物的方法。 水泥组合物的特征在于由水泥混合物和由其形成的混凝土的水蒸汽排放减少或减弱的性质。
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公开(公告)号：US4052220A
公开(公告)日：1977-10-04
申请号：US612138
申请日：1975-09-10
摘要： A method for preparing an improved concrete wherein a chemical admix is slurried with water and a pozzolan material prior to its incorporation in the concrete. This method reduces the slump loss of the concrete during transportation, and increases its workability in the form at the point of use without any sacrifice in strength.
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公开(公告)号：US10077210B2
公开(公告)日：2018-09-18
申请号：US15153227
申请日：2016-05-12
IPC分类号： C04B16/08 , C04B20/12 , C04B28/02 , C04B20/10 , C04B111/40
CPC分类号： C04B20/12 , C04B20/1003 , C04B28/02 , C04B2111/40 , C04B2201/20 , Y02W30/94 , C04B16/08 , C04B20/1077 , C04B2103/0067 , C04B20/107 , C04B20/123 , C04B20/1014 , C04B14/06 , C04B14/108 , C04B14/12 , C04B18/027 , C04B18/141 , C04B2103/30 , C04B2103/304
摘要： A lightweight aggregate for use in forming lightweight cementitious mixes and/or concrete is formed by encapsulating a plurality of hydrophobic polymer particles (e.g., expanded polystyrene particles) in an encasement having a first layer of a cementitious material and a second layer of a pozzolan or mineral. The lightweight aggregate can be included as at least part of the aggregate component of a cementitious mix to form a lightweight cementitious mix. The lightweight aggregate and/or lightweight cementitious mix can be used to form lightweight concrete. The encasement of the lightweight aggregate allows the cement of the cementitious mix or concrete composition to bond to the lightweight aggregate, thereby promoting strength and durability of the concrete mixture.
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公开(公告)号：US08220344B2
公开(公告)日：2012-07-17
申请号：US12503622
申请日：2009-07-15
IPC分类号： G01N33/00
CPC分类号： G01N5/04 , G01N33/383
摘要： Provided are procedures for estimating the amount of water vapor emissions as well as other properties, such as slump and volume yield, of a concrete or cementitious mix used in producing a concrete.
摘要翻译： 提供了用于估计水蒸汽排放量以及用于生产混凝土的混凝土或水泥混合物的其它性质（例如坍落度和体积产率）的程序。
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公开(公告)号：US4256500A
公开(公告)日：1981-03-17
申请号：US120838
申请日：1980-02-12
CPC分类号： C04B28/02 , C04B24/06 , Y10S106/01
摘要： A cement composition comprising cement, a pozzolan material, fine aggregate, air, water, at least one alkali metal constituent selected from the group consisting of sodium, potassium, and lithium ions, and at least one anionic constituent which is capable of forming complexes with ferric ions, is soluble in water, and forms a calcium salt which is also water soluble, wherein the alkali metal constituent is present in an amount up to approximately 4.0 percent by weight, in terms of the equivalent weight of sodium ions, of the pozzolan material; the anionic constituent is present in an amount up to approximately 6.0 percent by weight, in terms of the equivalent weight of chloride ions, of the pozzolan material; and the cement composition is further characterized by: (a) having a solid volume ratio of cement to the pozzolan material within the range of approximately 0.05 to 2.0; (b) having a ratio of the volume of paste (fly ash, cement, air, and water) to the solid volume of sand within the range of approximately 0.75 to 2.5; and (c) having a ratio of the solid volume of cement to the volume of mortar less than about 0.19. The cement composition of the present invention is substantially less expensive than cement compositions presently employed in the industry having equivalent compressive strengths.
摘要翻译： 一种水泥组合物，其包含水泥，火山灰材料，细骨料，空气，水，至少一种选自钠，钾和锂离子的碱金属成分，以及至少一种能够形成与 铁离子可溶于水，并形成也是水溶性的钙盐，其中碱金属成分以火山灰的钠离子的当量重量计高达约4.0重量％ 材料; 阴离子组分以火山灰材料的氯离子的当量重量计高达约6.0重量％; 并且所述水泥组合物的特征还在于：（a）水泥与火山灰材料的固体体积比在约0.05至2.0的范围内; （b）在约0.75至2.5的范围内具有糊状物（飞灰，水泥，空气和水）的体积与固体体积的比率; 和（c）水泥的固体体积与砂浆体积之比小于约0.19。 本发明的水泥组合物比目前在工业中使用的具有等效抗压强度的水泥组合物要便宜得多。
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公开(公告)号：US06451105B1
公开(公告)日：2002-09-17
申请号：US09715388
申请日：2000-11-17
IPC分类号： C04B706
CPC分类号： C04B28/04 , C04B2103/10 , Y02W30/92 , Y02W30/94 , C04B14/06 , C04B18/08 , C04B20/008 , C04B22/064 , C04B18/141 , C04B7/527 , C04B14/28
摘要： A cementitious composition comprising Portland cement and a finely divided limestone accelerator. The Portland cement has a fineness of at least about 3,200 Blaine. The composition may contain one or more blast furnace slags or pozzolans, such as fly ash or silica fume. When pozzolans or slags are present, the weight ratio of limestone to a mortar mixture of Portland cement, limestone, sand, water, and pozzolans or blast furnace slags, is in the range of about 1.4% to about 5.6%. The finely divided limestone acts as an accelerator, decreasing the initial set time of the resulting composition, and increasing the rate of strength gain.
摘要翻译： 包含波特兰水泥和细碎石灰石加速剂的水泥组合物。 波特兰水泥的细度至少约为3200布莱恩。 组合物可以含有一种或多种高炉矿渣或火山灰，例如飞灰或硅灰。 当火山灰或炉渣存在时，石灰石与波特兰水泥，石灰石，沙子，水和火山灰或高炉矿渣的砂浆混合物的重量比在约1.4％至约5.6％的范围内。 细碎的石灰石作为加速器，减少所得组合物的初始设定时间，并增加强度增益率。
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公开(公告)号：US4313763A
公开(公告)日：1982-02-02
申请号：US201725
申请日：1980-10-29
CPC分类号： C04B28/04 , C04B24/06 , Y02W30/92 , Y10S106/01
摘要： A cement composition comprising cement, a self-setting pozzolan material, fine aggregate, air, water, at least one alkali metal constituent selected from the group consisting of sodium, potassium, and lithium ions, and at least one anionic constituent which is soluble in water and forms a calcium salt which is also water soluble, and a water soluble oxide of boron compound wherein the alkali metal constituent is present in an amount up to approximately 4.0 percent by weight, in terms of the equivalent weight of sodium ions, of the pozzolan material, the anionic constituent is present in an amount up to approximately 6.0 percent by weight, in terms of the equivalent weight of chloride ions, of the pozzolan material; the water soluble oxide of boron compound is present in the range of about 0.01 to 2.0 percent, in terms of the equivalent weight of borate ions (BO.sub.3.sup..ident.), by weight of the pozzolan material; the pozzolan material being self-setting; and the cement composition is further characterized by: (a) having a solid volume ratio of cement to the pozzolan material within the range of approximately 0.05 to 2.0; (b) having a ratio of the volume of paste (pozzolan, cement, air and water) to the solid volume of sand within the range of approximately 0.75 to 2.5; and (c) having a ratio of the solid volume of cement to the volume of mortar less than about 0.19.
摘要翻译： 一种水泥组合物，其包含水泥，自凝固火山灰材料，细骨料，空气，水，至少一种选自钠，钾和锂离子的碱金属成分，以及至少一种可溶于 水，并形成也是水溶性的钙盐，以及硼化合物的水溶性氧化物，其中碱金属组分以钠离子的当量重量计高达约4.0重量％ 火山灰材料中，阴离子组分以火山灰材料的氯离子的当量重量计高达约6.0重量％; 根据火山灰材料的重量计，硼化合物的水溶性氧化物以硼酸根离子当量（BO3 =）计算在约0.01至2.0％的范围内; 火山灰材料是自我设定的; 并且所述水泥组合物的特征还在于：（a）水泥与火山灰材料的固体体积比在约0.05至2.0的范围内; （b）具有在约0.75至2.5的范围内的浆料（火山灰，水泥，空气和水）的体积与固体体积的比率; 和（c）水泥的固体体积与砂浆体积之比小于约0.19。
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