Standardization Strategy of Low Carbon Cement in Cuba. Case Study for “Siguaney” Cement Factory

Rocha, Dalva Marreiro; Almenares, R.; Sánchez, Sofía; Alujas, Adrián; Martirena, Fernando

doi:10.1007/978-94-024-1207-9_63

Cited by 2 publications

(2 citation statements)

References 2 publications

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“…Based on the above formulations, Low Carbon Cement (LC3) is a new type of cement that can reach 50% clinker substitution, using a combination of calcined clay and limestone [20][21][22]. The obvious advantage of the clinker-calcined clay-limestone system over traditionally blended cement lies in the possibility of increasing the level of clinker substitution without compromising the final properties of the cement [23,24].…”

Section: Introductionmentioning

confidence: 99%

Evaluation of the Durability of Concrete with the Use of Calcined Clays and Limestone in Salinas, Ecuador

Garces-Vargas,

Díaz-Cardenas,

Martirena Hernandez

2024

Minerals

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This study aims at the evaluation of different formulations of concrete made with calcined clays and limestone (LC3 cement) exposed to aggressive environments. The study includes the evaluation of fresh and hardened properties and a comprehensive evaluation of durability over 24 months. The inclusion of calcined clays in cement increases the specific surface area of the cements, and thus the water demand. However, the high reactivity of calcined clays compared to any other pozzolan, and the synergy that occurs with limestones, enables the use of cements with very low clinker content that achieve strengths similar to those of Portland. Comparisons of LC3 formulations with Portland cement and with concrete containing silica fume prove the superiority of calcined clays in terms of strength and durability. The best results are obtained with LC3-50 cement with 50% clinker produced through co-grinding. Results of concrete made with a blend of 70% Portland cement with 30% LC2 (60% calcined clay, 35% limestone, 5% gypsum, separate ground) are also promising. All concretes made with LC3 show good durability in terms of the results of effective porosity, chloride permeability, and resistivity tests.

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Section: Introductionmentioning

confidence: 99%

Evaluation of the Durability of Concrete with the Use of Calcined Clays and Limestone in Salinas, Ecuador

Garces-Vargas,

Díaz-Cardenas,

Martirena Hernandez

2024

Minerals

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“…The obvious advantage of calcined clay system with limestone and clinker over traditional blended cements lies in the possibility of increasing the level of clinker substitution without compromising the final properties of the cement [15,16]. This has a direct impact on the reduction of environmental costs associated with CO 2 emissions, without implying higher production values, which can even be lower without large investments [17,18].…”

Section: Introductionmentioning

confidence: 99%

The Challenge of Grinding Ternary Blends Containing Calcined Clays and Limestone

et al. 2022

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The inclusion of high specific surface materials such as calcined clays in cementitious systems enhances the hydration of clinker products at very early ages, but it may also increase water demand; thus, the pursuit of a flowing concrete may demand an increase in the dosage of superplasticizers. The grinding regime can have a major influence on the properties of the cementitious system and could help mitigate the problem of water demand. This paper discusses the impact of grinding alternatives for the production of a binder consisting of clinker, calcined clay, limestone and gypsum. Two main target products will be discussed: (i) LC3, a binder with a formulation of 50% clinker, 30% calcined clay, 15% limestone and 5% gypsum, co-ground all together, and (ii) LC2, a mineral addition with a formulation of 60% calcined clay, 35% limestone and 5% gypsum, ground separately and further blended with Portland cement on a 1:1 basis (mass). The experimental program is carried out in several stages: (i) the binder, (ii) cement pastes and (iii) standard mortars, and concrete grinding aids from the family TEA are used to enhance grinding, and their impact is also be assessed.

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Standardization Strategy of Low Carbon Cement in Cuba. Case Study for “Siguaney” Cement Factory

Cited by 2 publications

References 2 publications

Evaluation of the Durability of Concrete with the Use of Calcined Clays and Limestone in Salinas, Ecuador

Evaluation of the Durability of Concrete with the Use of Calcined Clays and Limestone in Salinas, Ecuador

The Challenge of Grinding Ternary Blends Containing Calcined Clays and Limestone

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