公开(公告)号：WO2019209353A1

公开(公告)日：2019-10-31

申请号：PCT/US2018/032361

申请日：2018-05-11

Applicant: GCP APPLIED TECHNOLOGIES INC.

Inventor： ALDYKIEWICZ, Antonio, J., Jr. ,  RIEDER, Klaus, Alexander ,  MORGAN, Michael, D. ,  PIRES, Djassi-biko, Rodrigues

IPC: C04B18/02

Abstract: Method and composition for producing aggregates from cement and concrete, including residual or returned concrete. Exemplary methods involve the use of an aggregate-forming inducer that provides a surface anchoring site for cement paste to bond/adhere, such as shredded news print, cardboard, or mixtures thereof, and also including fiber materials such as polymers, glass, and other material fibers. The aggregate-forming inducer is mixed with fresh concrete until aggregates are formed.

公开(公告)号：EP2438026B1

公开(公告)日：2018-01-10

申请号：EP09845645.2

申请日：2009-06-19

Applicant: GCP Applied Technologies Inc.

Inventor： BERKE, Neal, S. ,  MERRITT, Jordan, S. ,  LI, Lianfang ,  ALDYKIEWICZ, Antonio, J. ,  WIERCINSKI, Robert, A. ,  MORGAN, Michael, D.

IPC: C04B16/08 ,  C04B28/04 ,  C04B111/00 ,  C04B38/00 ,  C04B20/00

CPC classification number: C04B28/04 ,  C04B2111/00146 ,  Y10T428/273 ,  C04B14/18 ,  C04B14/204 ,  C04B16/08 ,  C04B20/0048 ,  C04B20/0076 ,  C04B24/085 ,  C04B24/2641 ,  C04B38/10 ,  C04B40/0608 ,  C04B2103/001 ,  C04B2103/44 ,  C04B2103/48 ,  C04B2103/58 ,  C04B2103/65

Abstract: Lightweight cementitious foams of the invention have excellent dynamic and dimensional stability due to use of foaming system comprising polycarboxylate surfactant foam generating agent, foam stabilizer (e.g., PVOH), and shrinkage reducing admixture to inhibit plastic shrinkage and micro-cracking of cement. The foaming system can be used in conventional cement mortars or concretes as well as with exemplary cementitious slurry systems of the invention, which include an expansive agent, a cross-linking agent for the foam stabilizer. Microfibers can be used in the foam, slurry, or both, to prevent micro-cracking. Cementitious foams can be made without use of autoclave or lightweight aggregates to achieve enhanced compressive strength and thermal insulation properties that compare favorably with conventional foams and insulation materials at comparable densities.