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    WATER REDUCING ADMIXTURE FOR STABLE AIR
    45.
    发明申请
    WATER REDUCING ADMIXTURE FOR STABLE AIR 有权

    公开(公告)号：US20230032346A1

    公开(公告)日：2023-02-02

    申请号：US17778808

    申请日：2020-11-20

    Applicant: GCP Applied Technologies Inc.

    Inventor： Elizabeth Burns ,  Hideo Koyata ,  Klaus-Alexander Rieder

    IPC: C04B28/28

    Abstract: The present invention provides exemplary additive compositions and methods whereby hydratable cementitious compositions, such as concrete, can be modified using polycarboxylate type ether or ester cement dispersant polymers of a small size, in combination with at least one alkyl alkoxylate type surface active agent which typically hitherto is considered detergent-like in generating air bubbles (heads of foam) in aqueous environments. The present inventors discovered surprisingly that such agents could be used to control air content in plastic concrete mixes in combination with the polycarboxylate type ether or ester cement dispersant polymer.

    Concrete Placement Sensing Using Aerial Drones
    46.
    发明申请
    Concrete Placement Sensing Using Aerial Drones 有权

    公开(公告)号：US20220180270A1

    公开(公告)日：2022-06-09

    申请号：US17681836

    申请日：2022-02-27

    Applicant: GCP Applied Technologies Inc.

    Inventor： Nathan A. Tregger ,  Mark F. Roberts ,  Jason Straka ,  Elise Berodier ,  Greg Austin ,  Robert Hoopes

    IPC: G06Q10/06

    Abstract: Described are a method and system for coordinating the delivery and placement of concrete loads at a job site, and more particularly to adjusting a set time value or value range of the concrete loads, thereby to facilitate finishing or other concrete placement activities. In exemplary embodiments, the adjustments can be made based on an assessment of previously placed concrete loads. The set time values or value ranges of the concrete can be monitored and adjusted to achieve desired properties during installation and/or in its hardened state.

    Controllable high flow concrete
    47.
    发明授权
    Controllable high flow concrete 有权

    公开(公告)号：US11352301B2

    公开(公告)日：2022-06-07

    申请号：US16341752

    申请日：2017-10-11

    Applicant: GCP Applied Technologies Inc.

    Inventor： Elizabeth Burns ,  Nathan A. Tregger ,  Hideo Koyata ,  Lawrence L. Kuo ,  Klaus-Alexander Rieder ,  Mark F. Roberts ,  David Myers

    IPC: C04B40/00 ,  C04B14/06 ,  C04B16/06 ,  C04B24/32 ,  C04B24/38 ,  C04B28/28 ,  C04B103/00 ,  C04B111/60

    Abstract: The present invention relates to very high workable yet controllable concrete mix design, admixture composition, and process for placing concrete. The mix design relates to particular aggregate/cement ratios and types which are characteristic of ready mix concrete (RMC), which provide high fluidity reminiscent of self-consolidating concrete (SCC), and which provides advantages over both RMC and SCC in terms of ease and speed in placement and finishability at the construction site placement zone, regardless of whether into a horizontal formwork (e.g., for slabs, floors) or into vertical formwork (e.g., for blocks, walls, columns, etc.), without loss of control and without generating high risks of segregation even when small amounts of water are added at the size to facilitate finishing of the concrete surface. An inventive admixture combination which enables this unique design involves two different polycarboxylate comb polymers in combination with two specific viscosity modifying agents, and this combination provides highly workable concrete to be placed in a controlled, efficient manner.

    Mineral grinding
    49.
    发明授权
    Mineral grinding 有权

    公开(公告)号：US11014858B2

    公开(公告)日：2021-05-25

    申请号：US16089816

    申请日：2017-03-28

    Applicant: GCP Applied Technologies Inc.

    Inventor： Larry R. Gibson, II ,  Byong-Wa Chun ,  Josephine Cheung ,  Leslie A J. Buzzell

    IPC: C04B14/28 ,  B02C23/06 ,  C04B28/12 ,  C04B103/52 ,  C04B40/00 ,  C04B20/02

    Abstract: The present invention pertains to the discovery that short chain aliphatic fatty acids, such as potassium sorbate, can be used in liquid-additive grinding compositions in the amount of at least 10%, more preferably at least 20%, and most preferably at least 30%, to mill carbonate materials into smaller particle size. The carbonate material can optionally be combined with another inorganic material in the grinding operation, such as limestone, lime, dolomites, talc, titanium dioxide, alumina, and kaolin, ceramics, and cement clinker. The use of the particularly described grinding additive composition are food-grade or food-contact approved, and are believed by the present inventors to resist the humectant behavior of the resultant ground particles which could in herently otherwise decrease efficiency of the particulate grinding process.

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