RT Journal Article
T1 Recent Advances in C-S-H Nucleation Seeding for Improving Cement Performances
A1 Cuesta-García, Ana María
K1 Química Inorgánica
AB Reducing cement CO2 footprint is a societal need. This is being achieved mainly by replacing an increasing amount of Portland clinker by supplementary cementitious materials. However, this comes at a price: lower mechanical strengths at early ages due to slow pozzolanic reaction(s). This is being addressed by using accelerator admixtures. In this context, calcium silicate hydrate nucleation seeding seems to have a promising future, as it can accelerate cement and pozzolanic reactions at early ages, optimising their microstructures, without compromising late strength and durability performances. In fact, these features could even be improved. Moreover, other uses are low temperature concreting, precasting, shotconcrete, etc. Here, we focus on reviewing recent reports on calcium silicate hydrate seeding using commercially available admixtures. Current knowledge on the consequences of nucleation seeding on hydration reactions and on early and late mechanical strengths is discussed. It is noted that other features, in addition to the classic alite hydration acceleration, are covered here including the enhanced ettringite precipitation and the very efficient porosity refinement, which take place in the seeded binders. Finally, because the seeded binders seem to be denser, durability properties could also be enhanced although this remains to be properly established.
PB IOAP-MDPI
YR 2023
FD 2023-02-09
LK https://hdl.handle.net/10630/26114
UL https://hdl.handle.net/10630/26114
LA eng
NO Cuesta A, Morales-Cantero A, De la Torre AG, Aranda MAG. Recent Advances in C-S-H Nucleation Seeding for Improving Cement Performances. Materials. 2023; 16(4):1462. https://doi.org/10.3390/ma16041462
NO This research has been partly supported by PID2020-114650RB-I00 research grant, Spanish Government, which is co-funded by ERDF. Partial funding for open access charge: Universidad de Málaga
DS RIUMA. Repositorio Institucional de la Universidad de Málaga
RD 20 ene 2026