A New Study on the Eastern Flank of the Loma Blanca Deposit (Cuba) to Establish the Mineralogical, Chemical, and Pozzolanic Properties of Zeolitised Tuffs [PDF]
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
doaj +2 more sources
Optimization of kaolin into Metakaolin: Calcination Conditions, mix design and curing temperature to develop alkali activated binder [PDF]
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 [PDF]
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
doaj +2 more sources
Thermal activation of an industrial sludge for a possible valorization [PDF]
MATEC Web of Conferences, 2014 This work fits within the framework of sustainable management of sludge generated from wastewater treatment in industrial network. The studied sludge comes from an industry manufacturing sanitary ware products.Physico-chemical and mineralogical ...
Lamrani Sanae +4 more
doaj +4 more sources
Bentonites in Southern Spain. Characterization and Applications [PDF]
Crystals, 2021 The objective of this work was to investigate and demonstrate the pozzolanic properties of the bentonites found at the San José–Los Escullos deposit, located in the southeast of the Iberian Peninsula, to be used in the manufacturing of more durable and ...
Jorge Luis Costafreda +1 more
doaj +2 more sources
Hydration mechanism and strength properties of recycled aggregate concrete made using ceramic blended cement [PDF]
Cogent Engineering, 2017 A pozzolanic material ordinarily contains high amounts of siliceous or aluminous components, but has no cementitious property until when it reacts with calcium hydroxide, that is available in cement, in the presence of moisture.
Paul O. Awoyera +2 more
doaj +2 more sources
Influence of chemical pretreatment on the pozzolanicity of recycled glass microparticles used as a substitute for Portland cement [PDF]
Materiales de ConstruccionThis research investigated the influence of using chemically treated glass microparticles as a partial replacement for cement in Portland cement pastes and mortars.
J.V.F. Barros Correia +3 more
doaj +3 more sources
Assessment of the pozzolanic activity of ornamental stone waste after heat treatment and its effect on the mechanical properties of concretes [PDF]
Revista IBRACON de Estruturas e Materiais, 2018 This paper aims at evaluating the pozzolanic properties of ornamental stone processing waste after heat treatment at 1200 °C (HTOSPW) and analyzing the influence on the mechanical strength of concrete produced with HTOSPW addition at the contents of 5 ...
S. H. M. MITTRI +4 more
doaj +3 more sources
Evaluation of coal fly ash in cementitious matrices [PDF]
Revista IBRACON de Estruturas e Materiais, 2017 The addition of ash, initially classified as waste in cement matrices, is essential to achieve the requirements of National Policy of Solid Waste. However, technologies that enable such applications should be sought, especially when the material has ...
D. ALTHEMAN +4 more
doaj +4 more sources
Assessment of Pozzolanic Activity of Ground Scoria Rocks under Low- and High-Pressure (Autoclave) Steam Curing. [PDF]
Materials (Basel), 2022 Two sources of natural scoria rocks were procured and ground for use in concrete as natural pozzolans (NP1 and NP2). The evaluation of their pozzolanic reactivity is carried out using different techniques and approaches.
Fares G, Alhozaimy AM.
europepmc +2 more sources