CONCRETE OPTIMIZED FOR HIGH WORKABILITY AND HIGH STRENGTH TO CEMENT RATIO
    1.
    发明申请
    CONCRETE OPTIMIZED FOR HIGH WORKABILITY AND HIGH STRENGTH TO CEMENT RATIO 审中-公开
    混凝土具有较高的工作性能和高强度的水泥比

    公开(公告)号:US20090158967A1

    公开(公告)日:2009-06-25

    申请号:US12247522

    申请日:2008-10-08

    摘要: A concrete composition having a 28-day design compressive strength of 3000 psi and a slump of about 5 inches is optimized to have high workability and a high strength to cement ratio. The concrete composition contains about 299 pounds per cubic yard hydraulic cement (e.g., Portland cement), about 90 pounds per cubic yard pozzolanic material (e.g., Type C fly ash), about 1697 pounds per cubic yard fine aggregate (e.g., FA-2 sand), about 1403 pounds per cubic yard coarse aggregate (e.g., CA-11 state rock, ¾ inch), about 269 pounds per cubic yard water (e.g., potable water), and about 1.4 fluid ounces of air entraining agent per cwt of hydraulic cement. Workability and strength to cement ratio were increased compared to one or more preexisting concrete compositions having the same 28-day design compressive strength and similar slump by optimizing the ratio of fine aggregate to coarse aggregate. The concrete composition is further characterized by high cohesiveness, resulting in relatively little or no segregation or bleeding.

    摘要翻译: 具有28天设计抗压强度为3000psi和约5英寸的坍落度的混凝土组合物被优化以具有高的可加工性和高的水泥比。 混凝土组合物包含约299磅每立方码水泥水泥(例如波特兰水泥),约90磅每立方码火山灰材料(例如C型粉煤灰),约1697磅/立方码细骨料(例如FA-2 沙子),大约1403磅每立方码粗骨料(例如,CA-11状态岩石,¾英寸),约269磅/立方码水(例如饮用水)和约1.4流体盎司的加气剂每cwt 水泥水泥。 与一种或多种具有相同28天设计抗压强度和相似坍落度的预先存在的混凝土组合物相比,通过优化细骨料与粗骨料的比例,可加工性和强度与水泥比增加。 混凝土组合物的进一步特征在于高的内聚力,导致相对较少或没有偏析或渗色。

    HIGHLY WORKABLE CONCRETE COMPOSITIONS HAVING MINIMAL BLEEDING AND SEGREGATION
    2.
    发明申请
    HIGHLY WORKABLE CONCRETE COMPOSITIONS HAVING MINIMAL BLEEDING AND SEGREGATION 审中-公开
    具有最小化和分离的高度可组合的混凝土组合物

    公开(公告)号:US20090158960A1

    公开(公告)日:2009-06-25

    申请号:US12247308

    申请日:2008-10-08

    IPC分类号: C04B7/00 C04B24/24

    摘要: Concrete compositions have a fine-to-coarse aggregate ratio optimized for increased workability with minimal segregation and bleeding. The concrete compositions include at least water, cement, coarse aggregate, and fine aggregate and have a slump of at least 1 inch and a 28-day compressive strength of at least about 1500 psi. Workability is improved by minimizing the viscosity as a function of the aggregate content, while minimizing segregation and bleeding. To improve workability, the concrete compositions include between 45% and 65% fine aggregate and between 35% and 55% coarse aggregate as a function of total aggregate volume. For relatively low strength concrete (1500-4500 psi), the fine aggregate is 55-65% of the total aggregate volume. For medium strength concrete (4500-8000 psi), the fine aggregate is 50-60% of the total aggregate volume. For high strength concrete (>8000 psi), the fine aggregate is 45-55% of the total aggregate volume. Overall workability can be maintained or improved even if slump is decreased.

    摘要翻译: 混凝土组合物具有细至粗的骨料比,其优化用于增加可加工性,同时具有最小的分离和渗血。 混凝土组合物至少包括水,水泥,粗骨料和细骨料,并具有至少1英寸和28天压缩强度至少约1500psi的坍落度。 通过最小化作为骨料含量的函数的粘度,同时最小化偏析和渗色来改善可加工性。 为了提高可加工性,具体组合物包括45%至65%的细骨料和35%至55%之间的粗骨料作为总骨料体积的函数。 对于相对较低强度的混凝土(1500-4500psi),细骨料占总骨料体积的55-65%。 对于中强度混凝土(4500-8000psi),细骨料占总骨料体积的50-60%。 对于高强度混凝土(> 8000 psi),细骨料为总骨料体积的45-55%。 即使坍落度下降,总体可操作性也可以保持或提高。

    CONCRETE COMPOSITIONS OPTIMIZED FOR HIGH WORKABILITY
    8.
    发明申请
    CONCRETE COMPOSITIONS OPTIMIZED FOR HIGH WORKABILITY 审中-公开
    优化组合物,以实现高可用性

    公开(公告)号:US20090158970A1

    公开(公告)日:2009-06-25

    申请号:US11961613

    申请日:2007-12-20

    IPC分类号: C04B7/36

    摘要: Concrete compositions have a fine-to-coarse aggregate ratio optimized for decreased viscosity and increased workability. The concrete compositions include at least water, cement, coarse aggregate, and fine aggregate and have a slump of at least 1 inch and a 28-day compressive strength of at least about 1500 psi. Workability is improved by minimizing the viscosity as a function of the aggregate content. To improve workability, the concrete compositions include between 45% and 65% fine aggregate and between 35% and 55% coarse aggregate as a function of total aggregate volume. For relatively low strength concrete (1500-4500 psi), the fine aggregate is 55-65% of the total aggregate volume. For medium strength concrete (4500-8000 psi), the fine aggregate is 50-60% of the total aggregate volume. For high strength concrete (>8000 psi), the fine aggregate is 45-55% of the total aggregate volume. Overall workability can be maintained or improved even if slump is decreased.

    摘要翻译: 混凝土组合物具有优化用于降低粘度和增加可加工性的细至粗骨料比。 混凝土组合物至少包括水,水泥,粗骨料和细骨料,并具有至少1英寸和28天压缩强度至少约1500psi的坍落度。 通过最小化作为聚集体含量的函数的粘度来改善可加工性。 为了提高可加工性,具体组合物包括45%至65%的细骨料和35%至55%之间的粗骨料作为总骨料体积的函数。 对于相对较低强度的混凝土(1500-4500psi),细骨料占总骨料体积的55-65%。 对于中强度混凝土(4500-8000psi),细骨料占总骨料体积的50-60%。 对于高强度混凝土(> 8000 psi),细骨料为总骨料体积的45-55%。 即使坍落度下降,总体可操作性也可以保持或提高。

    CONCRETE OPTIMIZED FOR HIGH WORKABILITY AND HIGH STRENGTH TO CEMENT RATIO
    9.
    发明申请
    CONCRETE OPTIMIZED FOR HIGH WORKABILITY AND HIGH STRENGTH TO CEMENT RATIO 审中-公开
    混凝土具有较高的工作性能和高强度的水泥比

    公开(公告)号:US20090158966A1

    公开(公告)日:2009-06-25

    申请号:US12247388

    申请日:2008-10-08

    摘要: A concrete composition having a 28-day design compressive strength of 3000 psi and a slump of about 5 inches is optimized to have high workability and a high strength to cement ratio. The concrete composition contains about 340 pounds per cubic yard hydraulic cement (e.g. Portland cement), about 102 pounds per cubic yard pozzolanic material (e.g., Type C fly ash), about 1757 pounds per cubic yard fine aggregate (e.g., FA-2 sand), about 1452 pounds per cubic yard coarse aggregate (e.g., CA-11 state rock, ¾ inch), and about 294 pounds per cubic yard water (e.g., potable water). Workability and strength to cement ratio were increased compared to one or more preexisting concrete compositions having the same 28-day design compressive strength and similar slump by optimizing the ratio of fine aggregate to coarse aggregate. The concrete composition is further characterized by high cohesiveness, resulting in relatively little or no segregation or bleeding.

    摘要翻译: 具有28天设计抗压强度为3000psi和约5英寸的坍落度的混凝土组合物被优化以具有高的可加工性和高的水泥比。 混凝土组合物包含约340磅/立方码水泥水泥(例如波特兰水泥),约102磅/立方码火山灰材料(例如C型粉煤灰),约1757磅/立方码细骨料(例如,FA-2砂 ),约1452磅/立方码的粗骨料(例如,CA-11状态岩,¾英寸)和约294磅/立方码水(例如饮用水)。 与一种或多种具有相同28天设计抗压强度和相似坍落度的预先存在的混凝土组合物相比,通过优化细骨料与粗骨料的比例,可加工性和强度与水泥比增加。 混凝土组合物的进一步特征在于高的内聚力,导致相对较少或没有偏析或渗色。

    CONCRETE HAVING HIGH WORKABILITY THROUGH CONTROL OF FINE-TO-COARSE PARTICULATES RATIO
    10.
    发明申请
    CONCRETE HAVING HIGH WORKABILITY THROUGH CONTROL OF FINE-TO-COARSE PARTICULATES RATIO 审中-公开
    通过控制微细颗粒比例的混凝土具有很高的工作性能

    公开(公告)号:US20090158965A1

    公开(公告)日:2009-06-25

    申请号:US11961708

    申请日:2007-12-20

    IPC分类号: C04B14/02

    摘要: Concrete compositions have a fine-to-coarse particulates ratio optimized for decreased viscosity and increased workability. The concrete compositions include at least water, cement, coarse aggregate, and fine aggregate and have a slump of at least 1 inch and a 28-day compressive strength of at least about 1500 psi. Workability is improved by minimizing the viscosity as a function of the particulates ratio. To improve workability, the concrete compositions include between 49-85% fine particulates (e.g., cement and fine aggregate) and between 15-51% coarse particulates as a percentage of overall particulates volume. For normal strength concrete (up to about 8500 psi, or 58.6 MPa), the fine particulates fraction comprises about 50-75% by volume of total particulates. For high strength concrete (>8500 psi, or 58.6 MPa), the fine particulates fraction comprises about 56-85% by volume of total particulates. Overall workability can be maintained or improved even if slump is decreased.

    摘要翻译: 混凝土组合物具有优化用于降低粘度和增加可加工性的细至粗颗粒比例。 混凝土组合物至少包括水,水泥,粗骨料和细骨料,并具有至少1英寸和28天压缩强度至少约1500psi的坍落度。 通过使作为颗粒比的函数的粘度最小化来提高可加工性。 为了提高可加工性,混凝土组合物包括49-85%的微细颗粒(例如水泥和细骨料)和15-51%粗颗粒之间,占整个颗粒体积的百分比。 对于正常强度的混凝土(高达约8500psi或58.6MPa),细颗粒级分占总颗粒的约50-75%体积。 对于高强度混凝土(> 8500psi,或58.6MPa),细颗粒级分占总颗粒体积的约56-85%。 即使坍落度下降,总体可操作性也可以保持或提高。