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    Grey Water Measurement
    92.
    发明申请
    Grey Water Measurement 有权

    公开(公告)号：US20210333187A1

    公开(公告)日：2021-10-28

    申请号：US16316752

    申请日：2018-08-09

    Applicant: GCP Applied Technologies Inc.

    Inventor： Mark Roberts ,  Nathan Tregger ,  Stephen Klaus

    IPC: G01N11/14 ,  B28C5/42 ,  B28C7/02 ,  B28C7/04

    Abstract: Method and system to measure and monitor the grey water content in a rotating concrete mixer drum mixer truck using a sensor attached to the interior of the concrete mixer drum. By measuring the grey water content before a batching process takes place, the batched water (and cement content and admixture type and content) can be modified in order to maintain expected performance of the batched load in terms of both strength and rheology, or more simply, some or all of the grey water can be discharged from the concrete mixer drum before batching.

    Sag resistant vapor permeable barrier coating applicable at low temperature
    93.
    发明授权
    Sag resistant vapor permeable barrier coating applicable at low temperature 有权

    公开(公告)号：US11072716B2

    公开(公告)日：2021-07-27

    申请号：US15504104

    申请日：2015-08-12

    Applicant: GCP Applied Technologies Inc.

    Inventor： Robert A. Wiercinski

    IPC: C09D5/02 ,  C09D7/45 ,  C09D133/06 ,  C09D7/61 ,  C09D7/20 ,  C09D7/43 ,  B05D3/00 ,  C09D5/18 ,  E04B1/66 ,  C08K3/34

    Abstract: Methods and systems of the invention, for achieving a liquid-applicable, aqueous-based coating composition that forms a water-impermeable, vapor permeable barrier coating when applied onto a construction surface and allowed to dry, involve mixing together separate first and second components, wherein the first component comprises an acrylic emulsion, flame retardant, clay, and optionally at least one additive selected from thickeners (e.g., cellulosic), fillers, and other conventional additives; and wherein the second component comprises a freezing point depressing agent with a specific type of thickener selected from the group of associative thickeners, alkali soluble emulsion thickeners, or mixture thereof, to obtain the liquid-applicable coating. The present invention achieves low temperature film formation without reliance upon calcium nitrite, calcium nitrate, or sodium chloride type of freezing point depressing salts. The coating can be applied at low (e.g., sub-freezing) temperatures onto a construction surface such as wood, fiberboard, gypsum, cement, concrete, and other building substrates to achieve an effective barrier membrane.

    Wet press concrete slab manufacturing
    97.
    发明授权
    Wet press concrete slab manufacturing 有权

    公开(公告)号：US10647024B2

    公开(公告)日：2020-05-12

    申请号：US15528381

    申请日：2015-10-06

    Applicant: GCP Applied Technologies Inc.

    Inventor： Klaus A. Rieder ,  David M. Hughes ,  Lukasz M. Marcinkowski

    IPC: B28B3/04 ,  B28B7/46 ,  B28B11/24 ,  C04B28/02 ,  C04B40/02 ,  B28B13/06 ,  C04B14/04 ,  C04B18/02 ,  C04B24/12 ,  C04B40/00 ,  C04B103/00

    Abstract: The present invention provides a wet press process and admixture components for making concrete slabs (flags) (16), curb (kerb) units, panels, boards, and other flat shapes, whereby colloidal silica and at least one alkanolamine and optional rheology control components are employed to provide an ideal combination of pressing time, green strength, surface definition, stack-ability, final concrete strength, and permeability. Stack-ability can be expressed in terms of minimum deflection or non-eccentricity of the units while standing on thickness edges at distances apart less than width or standing height. A wet press process typically involves introducing a highly fluid concrete mix into a mold (10,12), applying hydraulic pressure to consolidate the concrete (e.g., 1000-3000 PSI) and to extract excess water, removing the pressed concrete (16) while in a green state from the mold (10,12), and then standing the slab (16) units immediately upon removal from the mold (10,12) while in a green state, on an edge adjacent to but spaced apart from other edge-standing units. In further embodiments, rounded aggregates such as naturally occurring sand and/or gravel obtained from local sources can be incorporated into the concrete slabs without defeating (vertical) stack-ability in the green state.

    Postponed onset of quicklime hydration
    98.
    发明授权
    Postponed onset of quicklime hydration 有权

    公开(公告)号：US10597325B2

    公开(公告)日：2020-03-24

    申请号：US15776519

    申请日：2016-11-14

    Applicant: GCP Applied Technologies Inc.

    Inventor： Byong-wa Chun

    IPC: C04B2/10 ,  C04B22/06 ,  C01F11/02 ,  C01F5/02 ,  C04B28/02 ,  C04B28/04 ,  C04B111/00

    Abstract: The present invention provides compositions and methods relative to controlling hydration onset of an alkaline earth metal oxide such as calcium oxide, comprising heating an inorganic alkaline earth metal oxide to sub-calcination temperatures in the presence of organic material comprising a carbohydrate, an amino-carboxylic acid, a hydroxycarboxylic acid, or a mixture thereof. Preferred treated particles comprise at least 40% and more preferably at least 80% by dry weight calcium oxide which is heated in the presence of ascorbic acid and a starch. Treated particles of the present invention manifest an unexpected, surprising hydration induction postponement behavior as demonstrated through calorimetric testing.

    Controllable High Flow Concrete
    99.
    发明申请
    Controllable High Flow Concrete 审中-公开

    公开(公告)号：US20200048152A1

    公开(公告)日：2020-02-13

    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 ,  C04B24/38 ,  C04B16/06 ,  C04B28/28 ,  C04B24/32

    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.

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