Portland and Belite Cement Hydration Acceleration by C-S-H Seeds with Variable w/c Ratios.

ABSTRACT: The acceleration of very early age cement hydration by C-S-H seeding is getting attention from scholars and field applications because the enhanced early age features do not compromise later age performances. This acceleration could be beneficial for several low-CO₂ cements as a general drawback is usually the low very early age mechanical strengths. However, the mechanistic understanding of this acceleration in commercial cements is not complete. Reported here is a contribution to this understanding from the study of the effects of C-S-H gel seeding in one Portland cement and two belite cements at two widely studied water-cement ratios, 0.50 and 0.40. Two commercially available C-S-H nano-seed-based admixtures, i.e., Master X-Seed 130 and Master X-Seed STE-53, were investigated

SUBMITTER: Morales-Cantero A 

PROVIDER: S-EPMC9147420 | biostudies-literature | 2022 May

REPOSITORIES: biostudies-literature