US 11,981,860 B2
Hydraulic cement composition, process and use
Gabriela Gonçalves Dias Ponzi, Porto Alegre (BR); Felipe Dalla Vecchia, Porto Alegre (BR); Sandra Mara De Oliveira Einloft, Porto Alegre (BR); Marta Kerber Schütz, Porto Alegre (BR); Victor Hugo Jacks Mendes Dos Santos, Porto Alegre (BR); Darlan Pontin, Porto Alegre (BR); Renan Bordulis Martel, Porto Alegre (BR); Amanda Sofia De Guimarães E Stepanha, Porto Alegre (BR); Dellyo Ricardo Dos Santos Alvares, Rio de Janeiro (BR); Sonia Maria Cabral De Menezes, Rio de Janeiro (BR); and Ana Paula Santana Musse, Rio de Janeiro (BR)
Assigned to UNIÃO BRASILEIRA DE EDUCAÇÃO E ASSISTÊNCIA—MANTENEDORA DA PUCRS, Porto Alegre (BR); and PETRÓLEO BRASILEIRO S.A.—PETROBRAS, Rio de Janeiro (BR)
Filed by UNIÃO BRASILEIRA DE EDUCAçÃO E ASSISTÊNCIA—MANTENEDORA DA PUCRS, Porto Alegre (BR); and PETRÓLEO BRASILEIRO S.A.—PETROBRAS, Rio de Janeiro (BR)
Filed on Apr. 29, 2022, as Appl. No. 17/661,513.
Claims priority of application No. 10 2021 008503 7 (BR), filed on Apr. 30, 2021.
Prior Publication US 2022/0403223 A1, Dec. 22, 2022
Int. Cl. C04B 7/13 (2006.01); C04B 7/40 (2006.01); C04B 7/52 (2006.01); C04B 28/02 (2006.01); C09K 8/42 (2006.01); C09K 8/493 (2006.01); C04B 111/00 (2006.01); C04B 111/22 (2006.01)
CPC C09K 8/493 (2013.01) [C04B 7/13 (2013.01); C04B 7/40 (2013.01); C04B 7/522 (2013.01); C04B 7/527 (2013.01); C04B 28/02 (2013.01); C09K 8/426 (2013.01); C04B 2111/00275 (2013.01); C04B 2111/00663 (2013.01); C04B 2111/22 (2013.01)] 13 Claims
 
1. A carbon dioxide (CO2) resistant hydraulic cementitious composition, comprising basalt powder (BP) as a supplementary cementitious material (SCM) in dry base cement powder, wherein the basalt powder comprises a particle size equivalent to the fraction passing through a #325 mesh sieve, up to 0.044 mm and 4000-6000 m2/kg.