Results 21 to 30 of about 7,633 (204)
Effect of pozzolans with different physical and chemical characteristics on concrete properties
Materiales de Construccion, 2016 The durability of concrete structures is an important issue nowadays. Specifically in the case of reinforced concrete bridges or other infrastructures one of the main form of environmental attack is the penetration of chloride ions, which leads to ...
H. Paiva +3 more
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Cements based on kaolinite waste [PDF]
, 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.
Fernández Carrasco, Lucía +5 more
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Nigerian Journal of Technological Development, 2022 Research into substituting recycled materials for cement and aggregates can yield beneficial natural resource conservation, waste management, cost savings, and reduced embodied energy in concrete.
Stephen Adeyemi Alabi, Jeffrey Mahachi
doaj
Potential of Orange Peel Ash as a Cement Replacement Material [PDF]
, 2019 The potential of Orange peel ash (OPA) as a cement replacement material was investigated with focus on the effect of OPA content on the physicomechnical properties such as consistency, setting times, soundness, compressive and flexural strengths of OPA ...
Abdullahi, Basiru +2 more
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Eco-efficient concrete using industrial wastes: a review [PDF]
, 2013 "Advanced Materials Forum VI ". ISBN 978-3-03785-493-8.Concrete is one of the most widely used construction materials in the world. However, the production of Portland cement as the essential constituent of concrete requires a considerable energy level.
Jalali, Said +2 more
core +1 more source
Performance of blended cement concrete exposed to marine environment [PDF]
, 2015 Reinforced concrete exposed to the marine environment deteriorates more rapidly. Structures constructed at or near the sea shore have to be repaired more often than comparable structures located elsewhere.
Ahmed, Mir Salman +2 more
core +1 more source
Massive Volcanic Glass: Natural Pozzolan in the West of São Paulo State [PDF]
Geologia USP. Série Científica, 2011 Some occurrences of massive volcanic glass have been recorded in the western region of São Paulo State duringgeological mapping and prospecting and technological characterization of pozzolanic materials.
Tarcísio José Montanheiro +4 more
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Modifications induced by adding natural zeolitic pozzolans to cement paste
Materiales de Construccion, 2005 Volcanic pozzolans owe their pozzolanic activity chiefly to the presence of vitreous or zeolitic material rich in SiO2, and Al20y compounds that react with the portlandite produced during cement hydration to generate amorphous gels with cementitious ...
M. T. Blanco-Varela +3 more
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Advances in Civil Engineering, 2021 The effectiveness of mine backfilling depends on the properties of its constituents. The high cost of cement, which is commonly used as a binder in mine backfill, has led researchers to seek alternatives to partially replace it with other binders.
Mohammed Hefni, Maaz A. Ali
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Heats of hydration and pozzolan content of portland-pozzolan cements
Journal of Research of the National Bureau of Standards, 1952 Methods are described for the measurement of the approximate heat of solution in acid of portland-cement^-pozzolan mixtures. Examples are given of the estimation of the heat of hydration of portland-pozz olan cements. Determinations of the amount of material undissolved in the calorimeter, as well as the heats of solution, were applied to the problem ...
E.S. Newman, L.S. Wells
openaire +2 more sources