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Electric recycling of Portland cement at scale. [PDF]
NatureCement production causes 7.5% of global anthropogenic CO2 emissions, arising from limestone decarbonation and fossil-fuel combustion1–3. Current decarbonation strategies include substituting Portland clinker with supplementary materials, but these mainly
Dunant CF +3 more
europepmc +2 more sources
Portland cement versus MTA as a root-end filling material. A pilot study [PDF]
Acta Cirúrgica Brasileira, 2015 PURPOSE: To assess periradicular lesions clinically and by computed tomography (CT) after endodontic surgery using either Portland cement or mineral trioxide aggregate (MTA) as a root-end filling material.
Sérgio Ribeiro da Silva +4 more
doaj +6 more sources
Effects of Supplemetary Cementitious Materials on the Air Permeability of Concrete [PDF]
Journal of Materials and Engineering Structures, 2017 In order to support the use of cement combination concrete in construction, this paper investigated the resistance of Portland cement and some binary and ternary cement concretes containing fly ash, silica fume and metakaolin to air permeability at equal
Samuel Olufemi Folagbade
doaj +2 more sources
Characteristics of Ferrite-Rich Portland Cement: Comparison With Ordinary Portland Cement
Frontiers in Materials, 2019 The cement industry is an energy-intensive industry, and improving the energy efficiency of cement has become necessary to reduce its carbon footprint and to compete in the global market. Clinker production consumes more than 90% of the total energy used
Yogarajah Elakneswaran +6 more
doaj +2 more sources
Biochar affects compressive strength of Portland cement composites: a meta-analysis [PDF]
BiocharOne strategy to reduce CO2 emissions from cement production is to reduce the amount of Portland cement produced by replacing it with supplementary cementitious materials (SCMs).
Zhihao Zhao +5 more
doaj +2 more sources
Hydration and Fractal Analysis on Low-Heat Portland Cement Pastes Using Thermodynamics-Based Methods
Fractal and Fractional, 2023 Low-heat Portland (LHP) cement is a kind of high-belite cement, which has the characteristic of low hydration heat. Currently, it is extensively used in the temperature control of mass concrete. Based on the thermodynamic database of OPC-based materials,
Yifan Zhou +9 more
semanticscholar +1 more source
Applied Sciences, 2022 Failures of tailings dams, primarily due to liquefaction, have occurred in Brazil in recent years. These events have prompted the Brazilian government to place restrictions on the construction of new dams, as iron ore tailings deposited behind upstream ...
N. Consoli +6 more
semanticscholar +1 more source
Fractal and Fractional, 2021 In cement-based materials, alkalis mainly exist in the form of different alkali sulfates. In this study, the impacts of different alkali sulfates on the shrinkage, hydration, pore structure, fractal dimension and microstructure of low-heat Portland ...
Li Yang +6 more
semanticscholar +1 more source
Buildings, 2022 The article presents research of the influence of the electromagnetic vortex layer on the structure formation of cement stone during the activation of portland cement, both without additives and with carbon nanotubes modification.
Ibragimov Ruslan +4 more
doaj +1 more source
Recent Advances in Magnesia Blended Cement Studies for Geotechnical Well Construction—A Review
Frontiers in Materials, 2021 The current paper presents a literature review on the studies of incorporation of magnesia (magnesium oxide) into Portland cement material from the geotechnical well construction perspective.
Weiqing Chen +3 more
doaj +1 more source