公开(公告)号：US20180297897A1

公开(公告)日：2018-10-18

申请号：US15768022

申请日：2016-11-07

Applicant: YARA INTERNATIONAL ASA

Inventor： Wolfram Franke ,  Hilde Thommesen ,  Giuseppe Cilluffo ,  Gianluca Romegialli ,  Mehrdad Torabzadegan

IPC: C04B22/08 ,  C04B14/06 ,  C04B14/08 ,  C04B18/14 ,  C04B20/00 ,  C04B28/02 ,  C04B40/00

Abstract: The invention relates to a solid particulate calcium nitrate composition having particles with an average particle size of between 0.1 and 1 mm and comprising an anti-caking agent, wherein the anti-caking agent consists of a solid particulate silicate with an average particle size of between 0.05 and 750 μm. The invention furthermore relates to a pre-blend binder composition comprising such a solid particulate calcium nitrate composition. Also a dry mortar mix or tile adhesive composition and a dry concrete mix comprising an aggregate and such a pre-blend binder composition. Also a method for producing a solid particulate calcium nitrate composition, the use of a solid particulate silicate as anti-caking agent for a solid particulate calcium nitrate composition and the use of a solid particulate calcium nitrate composition as a setting accelerator for cementitious pre-blend binder composition are disclosed.

公开(公告)号：US20190071367A1

公开(公告)日：2019-03-07

申请号：US15767177

申请日：2016-11-10

Applicant: YARA INTERNATIONAL ASA

Inventor： Wolfram Franke ,  Giuseppe Cilluffo ,  Mehrdad Torabzadegan

IPC: C04B38/00 ,  C04B28/04

Abstract: The invention relates to the use of calcium nitrate to reduce the pore size distribution of a hardened cementitious composition, preferably, a hardened concrete composition, wherein the cementitious (concrete) composition comprises between 1 weight % to 4 weight % of calcium nitrate of the cement content of the cementitious composition, depending on the type of cement. This results in a reduced permeability for the set cementitious (concrete) composition for carbon dioxide (CO2) and thus an elevated resistance towards carbonation. The invention furthermore relates to a method for producing such a hardened cementitious (concrete) composition and a pourable and curable (wet) concrete composition. The invention also relates to a steel reinforced concrete solid having an elevated resistance towards carbonation and a method for producing a steel reinforced concrete solid having an elevated resistance towards carbonation.

公开(公告)号：US10053389B2

公开(公告)日：2018-08-21

申请号：US15564857

申请日：2016-04-29

Applicant: YARA INTERNATIONAL ASA

Inventor： Gianluca Romegialli ,  Wolfram Franke ,  Giuseppe Cilluffo

IPC: C04B28/02 ,  C04B22/08 ,  C04B20/00 ,  C04B20/02 ,  C04B20/04 ,  C04B40/06 ,  C04B103/12 ,  C04B111/00

CPC classification number: C04B22/085 ,  C04B20/008 ,  C04B20/026 ,  C04B20/04 ,  C04B28/02 ,  C04B40/0608 ,  C04B2103/12 ,  C04B2111/00637 ,  C04B20/0076

Abstract: The application relates to the use of a powder comprising calcium nitrate as a setting accelerator for a tile adhesive blend, wherein nitrate powder comprising calcium nitrate, and optionally also comprising a nitrate salt different than the calcium nitrate, specifically potassium or ammonium nitrate, and having a particle size of between 0.01 mm and 1 mm is used as the setting accelerator. The application furthermore relates to a process for producing such a setting accelerator comprising, in one possible embodiment, the step of cutting or grinding prills and/or granules comprising the calcium nitrate and optionally the different nitrate salt, and in another embodiment, a spray drying process, resulting into the setting accelerator. The application also relates to a tile adhesive blend comprising at least a cement, sand and a such setting accelerator.

公开(公告)号：US20180086668A1

公开(公告)日：2018-03-29

申请号：US15564857

申请日：2016-04-29

Applicant: YARA INTERNATIONAL ASA

Inventor： Gianluca Romegialli ,  Wolfram Franke ,  Giuseppe Cilluffo

IPC: C04B22/08 ,  C04B28/02 ,  C04B20/02 ,  C04B20/04 ,  C04B20/00 ,  C04B40/06

CPC classification number: C04B22/085 ,  C04B20/008 ,  C04B20/026 ,  C04B20/04 ,  C04B28/02 ,  C04B40/0608 ,  C04B2103/12 ,  C04B2111/00637 ,  C04B20/0076

Abstract: The application relates to the use of a powder comprising calcium nitrate as a setting accelerator for a tile adhesive blend, wherein nitrate powder comprising calcium nitrate, and optionally also comprising a nitrate salt different than the calcium nitrate, specifically potassium or ammonium nitrate, and having a particle size of between 0.01 mm and 1 mm is used as the setting accelerator. The application furthermore relates to a process for producing such a setting accelerator comprising, in one possible embodiment, the step of cutting or grinding prills and/or granules comprising the calcium nitrate and optionally the different nitrate salt, and in another embodiment, a spray drying process, resulting into the setting accelerator. The application also relates to a tile adhesive blend comprising at least a cement, sand and a such setting accelerator.