公开(公告)号：US10336652B2

公开(公告)日：2019-07-02

申请号：US15809530

申请日：2017-11-10

Applicant: GCP Applied Technologies Inc.

Inventor： Elise Berodier ,  Josephine H. Cheung ,  Nathan A. Tregger

IPC: C04B14/10 ,  C04B24/12 ,  C04B24/28 ,  C04B28/04 ,  C04B103/32

Abstract: The present invention discloses cementitious compositions which contain hydratable cement, limestone, or mixture thereof, having improved strength properties due to the presence of calcined clay and certain higher alkanolamines, wherein the calcined clay has an Fe2O3 content of greater than one percent (1%). Also disclosed are exemplary additives and methods for enhancing strength of cement and/or limestone compositions.

公开(公告)号：US20170217047A1

公开(公告)日：2017-08-03

申请号：US15328748

申请日：2015-07-24

Applicant: GCP Applied Technologies Inc.

Inventor： Craig K. Leon ,  Kati Hazrati ,  Nathan A. Tregger ,  Eric P. Koehler ,  Tuan Hoang ,  Mark F. Roberts

IPC: B28C5/42 ,  B28C7/12 ,  B28C7/02

CPC classification number: B28C5/422 ,  B01F13/0037 ,  B01F15/00207 ,  B01F15/0408 ,  B28C5/4231 ,  B28C7/024 ,  B28C7/126 ,  B28C7/128 ,  G01N33/383

Abstract: System and method of the invention involves use of a sensor-containing body which is mounted and/or rotatably disposed along the longitudinal rotational axis of a concrete mixer drum at the close end, the sensor-containing body being connected to a conduit for introducing water, chemical admixture, gas, and/or cleansing fluid through the closed end of the drum into the mixer drum. Numerous heretofore unrealized combinations of advantages and benefits are provided within the concrete industry by the invention.

公开(公告)号：US09624130B2

公开(公告)日：2017-04-18

申请号：US15016877

申请日：2016-02-05

Applicant: GCP Applied Technologies Inc.

Inventor： Lawrence L. Kuo ,  Keith St Jean ,  Yohannes K. Lemma ,  Nathan A. Tregger ,  Stephen P. Klaus ,  Danila F. Ferraz ,  Klaus-Alexander Rieder ,  Pierre Estephane

IPC: C08F8/34 ,  C08K3/00 ,  C04B24/12 ,  C04B24/26 ,  C04B24/06

CPC classification number: C04B24/2647 ,  C04B24/06 ,  C04B24/2658 ,  C04B24/267 ,  C04B40/0039 ,  C04B14/10 ,  C04B28/02

Abstract: The present invention provides a composition and method for modifying a hydratable cementitious composition such as concrete or mortar using at least three different, distinct carboxylate polymers, even when clay is present in the concrete or mortar that would otherwise diminish dosage efficiency of polycarboxylate polymer used as dispersant. The three polycarboxylate polymers, designated as Polymer I, Polymer II, and Polymer II, are derived from monomer Components A, B, and C wherein Component A is an unsaturated carboxylic acid, Component B is a polyoxyalkylene, and Component C is an unsaturated carboxylate ester. The component molar ratio ranges for A:B:C are different as between Polymers I and II; while a distinct component molar ratio A:B+C is identified for Polymer III. When treated with these three different polycarboxylate polymers, the hydratable cementitious composition is surprisingly enhanced in terms of initial workability and slump retention, especially if clay is present.