Limestone calcined clay binders based on a Belite-rich cement

Redondo-Soto, Cinthya; Morales-Cantero, Alejandro; Cuesta, Ana; Santacruz, Isabel; Gastaldi, Daniela; Canonico, Fulvio; Aranda, Miguel Á. G.

doi:10.1016/j.cemconres.2022.107018

Cited by 17 publications

(3 citation statements)

References 65 publications

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“…However, at 28 d, the situation is reversed and the improvements in mechanical properties of blends are larger than in plain PCs. In this sense, the synergy of C-S-H nucleation seeding and alkanolamine addition (to enhance calcium aluminate hydration) seems to be a very promising strategy to have improved mechanical strengths at 28 days and later [ 71 , 77 , 78 , 82 , 86 , 87 ].…”

Section: Activation Of Cement Hydration By C-s-h Nucleation Seedingmentioning

confidence: 99%

Recent Advances in C-S-H Nucleation Seeding for Improving Cement Performances

et al. 2023

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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.

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Section: Activation Of Cement Hydration By C-s-h Nucleation Seedingmentioning

confidence: 99%

Recent Advances in C-S-H Nucleation Seeding for Improving Cement Performances

et al. 2023

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“…The main factor is that LC 3 offers comparable or even better properties than PC, while simultaneously reducing CO 2 emissions by up to 40 %. This reduction is achieved by significantly decreasing the clinker-to-cement ratio by up to 50 % [ 54 ]. Furthermore, as industrial processes transition towards decarbonization, the availability of waste materials such as fly ash from coal power plants or blast furnace slags is expected to decrease due to the replacement of these technologies by green energies and electric arc furnace slag, respectively [ 6 , 55 , 56 ].…”

Section: Research Priorities and Trendsmentioning

confidence: 99%

Research evolution of limestone calcined clay cement (LC3), a promising low-carbon binder – A comprehensive overview

Mañosa,

Calderón,

Salgado-Pizarro

et al. 2024

Heliyon

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“…Common SCMs include fly ash, slag, and silica fume, but more recently, binders including geopolymers and limestone calcined clay cement (LC3) have also been introduced as alternatives to cement [117][118][119][120]. A short description of common alternative binders and their impact on the concrete properties is given in Table 5.…”

Section: Alternative Binders and Their Impactmentioning

confidence: 99%

Formwork Engineering for Sustainable Concrete Construction

Nilimaa,

Gamil,

Zhaka

2023

CivilEng

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This study provides a comprehensive review of the engineering challenges of formwork in concrete construction. The paper investigates different formwork systems, their design based on form pressure, and the difficulties of form stripping. Alternative binders are gaining more and more interest by opening new opportunities for sustainable concrete materials and their impact on form pressure and concrete setting is also investigated in this paper. The discussion involves several engineering challenges such as sustainability, safety, and economy, while it also explores previous case studies, and discusses future trends in formwork design. The findings pinpoint that choosing an appropriate formwork system depends significantly on project-specific constraints and that the development of innovative materials and technologies presents significant benefits but also new challenges, including the need for training and regulation. Current trends in formwork design and use show promising possibilities for the integration of digital technologies and the development of sustainable and ‘smart’ formwork systems. Continued research within the field has the possibility to explore new formwork materials and technologies, which will contribute to the implementation of more effective and sustainable practices in concrete construction.

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Limestone calcined clay binders based on a Belite-rich cement

Cited by 17 publications

References 65 publications

Recent Advances in C-S-H Nucleation Seeding for Improving Cement Performances

Recent Advances in C-S-H Nucleation Seeding for Improving Cement Performances

Research evolution of limestone calcined clay cement (LC3), a promising low-carbon binder – A comprehensive overview

Formwork Engineering for Sustainable Concrete Construction

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