Search Results - "García Lodeiro, I."

Variation in hybrid cements over time. Alkaline activation of fly ash–portland cement blends by García-Lodeiro, I., Fernández-Jiménez, A., Palomo, A.

“…The primary aim of the present paper was to determine the variations over time (one year) in the main cementitious gels forming during the alkaline activation…”
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Durability of alkali-activated fly ash cementitious materials by Fernandez-Jimenez, A, Garcia-Lodeiro, I, Palomo, A

“…The study described in the present paper addresses the durability of alkali-activated fly ash (AAFA) cement under different conditions: specifically, cement…”
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The role of aluminium in alkali-activated bentonites by García-Lodeiro, I., Cherfa, N., Zibouche, F., Fernández-Jimenez, A., Palomo, A.

“…In the pursuit of new sources of aluminosilicates for alkaline cement manufacture, the present paper reports on the compositional and mineralogical assessment…”
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Characterisation and diagnosis of heritage concrete: case studies at the Eduardo Torroja Institute, Madrid, Spain by Carmona-Quiroga, P.M., Pachón-Montaño, A., Queipo-de-Llano, J., Martín-Caro, J.A., López, D., Paniagua, I., Martínez, I., Rubiano, F., García-Lodeiro, I., Fernández-Ordóñez, L., Blanco-Varela, M.T., Frías-López, E.

“…That the preservation of twentieth concrete heritage is an area scantly explored can be attributed to a lack of appreciation for such a young material. In most…”
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Effect of alkalis on fresh C–S–H gels. FTIR analysis by García Lodeiro, I., Macphee, D.E., Palomo, A., Fernández-Jiménez, A.

“…The present study addresses the effect of different concentrations of Na 2O on the structure of a composition of fresh C–S–H gels. The gels were synthesized…”
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Corrosion behavior and immobilization of pure aluminum and Al−Mg alloy LLRW in magnesium potassium phosphate cements by Perona, R., Fernández-García, C., García-Lodeiro, I., Criado, M., Bastidas, J.M., Alonso, M.C.

“…Magnesium potassium phosphate cement (MKPC) is a candidate material to replace ordinary Portland cement (OPC) for the encapsulation of metallic low-level…”
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Consolidation of artificial decayed portland cement mortars with an alkoxysilane-based impregnation treatment and its influence on mineralogy and pore structure by García-Lodeiro, I., Zarzuela, R., Mosquera, M.J., Blanco-Varela, M.T

“…[Display omitted] •Alcoxysilane-based impregnation treatment specially designed for OPC mortars and concretes.•Reduction in the total porosity and increasing…”
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Effect on fresh C-S-H gels of the simultaneous addition of alkali and aluminium by García Lodeiro, I., Fernández-Jimenez, A., Palomo, A., Macphee, D.E

“…Reducing Portland cement content in cementitious binders offers a means to address the adverse environmental impacts of Portland cement manufacture. This paper…”
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Hydration kinetics in hybrid binders: Early reaction stages by Garcia-Lodeiro, I., Fernandez-Jimenez, A., Palomo, A.

“…Activated blends of Portland cement and fly ash with a high ash content (>70%) are a new alternative to traditional OPCs. A number of papers have been…”
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Portland Versus Alkaline Cement: Continuity or Clean Break: “A Key Decision for Global Sustainability” by Palomo, A., Maltseva, O., Garcia-Lodeiro, I., Fernández-Jiménez, A.

“…This review undertakes rigorous analysis of much of the copious literature available to the scientific community on the use of alkali-activated binders (AABs)…”
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Stability of Synthetic Calcium Silicate Hydrate Gels in Presence of Alkalis, Aluminum, and Soluble Silica by García-Lodeiro, I., Fernández-Jiménez, A., Macphee, D. E., Sobrados, I., Sanz, J., Palomo, A.

“…A study is described of the stability (chemical composition and nano-structural change) of a synthetic calcium silicate hydrate gel in the presence of Ca(OH)2,…”
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A review on alkaline activation: new analytical perspectives by Palomo, A., Krivenko, P., Garcia-Lodeiro, I., Kavalerova, E., Maltseva, O., Fernández-Jiménez, A.

“…For many years now the idea of including alkalis in a Portland cement matrix has been regarded as a daft or inexcusably erroneous proposition: despite its…”
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Alkali–aggregate reaction in activated fly ash systems by García-Lodeiro, I., Palomo, A., Fernández-Jiménez, A.

“…Certain aspects of the durability of a new cementitious material, alkali activated fly ash, are addressed in this article; specifically, a series of findings…”
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Alkaline activation of synthetic aluminosilicate glass by Garcia-Lodeiro, I., Fernández-Jimenez, A., Pena, P., Palomo, A.

“…The alkali activation of aluminosilicates is a procedure for obtaining new binders with many of the same properties as traditional portland cement. The type…”
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Compatibility studies between N-A-S-H and C-A-S-H gels. Study in the ternary diagram Na2O―CaO―Al2O3―SiO2―H2O by GARCIA-LODEIRO, I, PALOMO, A, FERNANDEZ-JIMENEZ, A, MACPHEE, D. E

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Manufacture of hybrid cements with fly ash and bottom ash from a municipal solid waste incinerator by Garcia-Lodeiro, I., Carcelen-Taboada, V., Fernández-Jiménez, A., Palomo, A.

“…[Display omitted] •Valorization of high proportions of incinerator fly ash and bottom ash via geopolymerization process.•Development of a hybrid cement with…”
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Mineralogical and microstructural alterations in a portland cement paste after an accelerated decalcification process by Garcia-Lodeiro, I., Goracci, G., Dolado, J.S., Blanco-Varela, M.T.

“…Cement paste leaching and concomitant decalcification is a common cause of concrete structure deterioration. Such alterations entail microstructural changes…”
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Use of clays in alkaline hybrid cement preparation. The role of bentonites by Garcia-Lodeiro, I., Boudissa, Nassima, Fernandez-Jimenez, A., Palomo, A.

“…•Use of alkaline activation technology to produce hybrid cements with excellent properties.•Hybrid cements composed by high proportions of clays and small…”
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Chemistry of the interaction between an alkoxysilane-based impregnation treatment and cementitious phases by Garcia-Lodeiro, I., Carmona-Quiroga, P.M., Zarzuela, Rafael, Mosquera, Maria J., Blanco-Varela, M.T.

“…Chemical compatibility with a wide range of materials is among the features that has driven the use of alkoxysilanes as consolidants in built structures. Such…”
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A statistical approach to the study of concrete carbonation by Garcia-Lodeiro, I., Palomo, J. G., Palomo, A., Fernández-Jiménez, A.

“…Carbonation is one of the factors that conditions reinforced concrete durability, while porosity is one of the parameters that determines the carbonation rate:…”
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