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Clays for Low‐Carbon Cements: Overview, Progress, and Challenges [PDF]

open access: yesGlobal Challenges
The replacement of Portland clinker with supplementary cementitious materials is a key approach to reducing the embodied carbon content of concretes. In this context, a widely studied family is the “limestone calcined clay cements, LC3.” Within this eco ...
Imane Koufany   +4 more
doaj   +3 more sources

Residual Capability of Alkali Binding by Hydrated Pozzolanic Cements in Long-Service Concrete Structures [PDF]

open access: yesAdvances in Materials Science and Engineering, 2018
An experimental procedure was developed and applied to cement pastes made with two different pozzolanic cements (CEM IV/B (P) and CEM IV/B (V)) in order to ascertain the existence of a residual capability of alkali binding by long-term hydrated ...
Mario Berra   +2 more
doaj   +2 more sources

Cements based on kaolinite waste [PDF]

open access: yesAdvances in Geosciences, 2018
The cement industry involves high-energy consumption that generates high CO2 emissions into the atmosphere. Environmental concerns can be addressed by replacing parts of Portland cement clinkers with pozzolanic materials in mortars and concrete. Slag,
R. García Giménez   +5 more
doaj   +10 more sources

Eco-Efficient Hybrid Cements: Pozzolanic, Mechanical and Abrasion Properties [PDF]

open access: yesApplied Sciences, 2020
One of the most polluting industries is the cement industry and, for this reason, alternative lines of research recommend the use of substitute materials for traditional Portland cement.
Segundo Shagñay   +5 more
doaj   +3 more sources

Research corrosion of cements with a new hydraulic additive [PDF]

open access: yesE3S Web of Conferences, 2023
Based on the above studies, the following conclusions can be made: The introduction of hydraulic additives into Portland cements increases their sulfate resistance, especially when cements have higher C3A content.
Kabulova Lola   +2 more
doaj   +1 more source

Mechanical activation of diabase and its effect on the properties and microstructure of Portland cement

open access: yesCase Studies in Construction Materials, 2022
Many volcanic rocks with pozzolanic properties are used as additives in cement production. Although diabase is a volcanic rock, it has not been used as an additive material in cement production until now.
Abdul Vahap Korkmaz
doaj   +1 more source

Reactivity of Ground Coal Bottom Ash to Be Used in Portland Cement

open access: yesJ, 2021
Ground coal bottom ash is considered a novel material when used in common cement production as a blended cement. This new application must be evaluated by means of the study of its pozzolanic properties.
Esperanza Menéndez   +2 more
doaj   +1 more source

The influence of calcined mixture cooling method on hydration products composition of blended cement stone [PDF]

open access: yesE3S Web of Conferences, 2021
Complex additives based on combinations of calcined clays, including kaolinite with limestone, due to the synergetic effect play a major role in the creation of blended cements.
Ermilova Elizaveta, Kamalova Zagira
doaj   +1 more source

Hydration Behaviour and Characteristics of Binary Blended Metakaolin Cement Pastes

open access: yesJournal of Building Materials and Structures, 2022
Cement production consume large amount of energy to form clinker and carbon dioxide (CO2) emitted into the atmosphere causing global warming. To mitigate this challenge, the use of Metakaolin (MK) as supplementary cementitious material cannot be over ...
Abah Joseph Apeh
doaj   +1 more source

Pozzolanic Effect on the Hydration Heat of Cements Incorporating Fly Ash, Obsidian, and Slag Additives

open access: yesAdvances in Civil Engineering, 2021
Made up of an engineered mix of ordinary Portland cement (OPC) with artificial pozzolans such as trass, fly ash, and slag, the blended cements have been intensely employed within cementitious materials.
Ilker Ustabas   +3 more
doaj   +1 more source

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