Results 11 to 20 of about 3,765 (253)
Rice husk ash as supplementary cementing material to inhibit the alkali-silica reaction in mortars
Revista IBRACON de Estruturas e Materiais, 2021 : Alkali-silica reaction (ASR) is one of the most harmful distress mechanisms that affects the durability of concrete worldwide. Yet, it has been found that ASR-induced expansion and distress may be prevented by the appropriate use of supplementary ...
Eloise Aparecida Langaro +4 more
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Chemistry, 2022 The geological nature of the territory of the Republic of Cuba has favoured the formation of large and varied deposits of volcanic tuffs enriched by various species of zeolites. Today, new zeolite deposits continue to be discovered in the country.
Jorge L. Costafreda +6 more
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Applied Sciences, 2023 Climate change is already an undeniable reality, and it is a direct consequence of our society’s lifestyle and the indiscriminate use of certain materials, such as Portland cement, which causes the emission of gases and waste that contributes to the ...
Domingo A. Martín +3 more
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Evaluation of Pozzolanic Reactivity of Artificial Pozzolans [PDF]
Materials Science Forum, 2012 Pozzolanicity is a very interesting issue regarding building materials, as a way to enhance mortars and concrete durability. This property results from the reaction between calcium hydroxide and silica and alumina based materials. Different types of natural and artificial pozzolans show pozzolanic activities that differ depending on the materials ...
Pontes, J. +2 more
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Reactivity of Ground Coal Bottom Ash to Be Used in Portland Cement
J, 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
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Buildings, 2023 Presently, the search for urgent solutions to mitigate climate change has become a global priority. One of the most important challenges is the characterization, standardization, and technology of sustainable natural raw materials, which will ...
Beatriz Astudillo +5 more
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Evaluation of the Pozzolanic Activity of Glass Powder in Three Maximum Grain Sizes
Materials Research, 2021 The addition of pozzolans has a potentially important role in the cement industry since using waste from other industries has important environmental benefits, including reduced CO2 emissions from cement production.
Alexandre Lopes Borges +5 more
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Ain Shams Engineering Journal, 2023 The natural kaolin deposits are crystalline inert with low CaO contents and surface area. Therefore, kaolin is not a suitable material used to produce Alkali Activated Binders (AAB) due to the low strength resulting.
Ziad Khaled +3 more
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Natural Fluorite from Órgiva Deposit (Spain). A Study of Its Pozzolanic and Mechanical Properties
Crystals, 2021 This work presents the results of the partial substitution of Portland cement (PC) by natural fluorite (NF) and calcined fluorite (CF) in mortars, at 10%, 25% and 40%.
Domingo A. Martín +8 more
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Journal of Materials Research and Technology, 2022 Tailings from bauxite extraction are worldwide of environmental concern, due to their open-air disposal in landfill dams. Although numerous studies have been dedicated to the application and reuse of wastes from bauxite processing tailings, there is ...
Afonso R.G. de Azevedo +5 more
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