[EN] This work studies the possibility of using geopolymer materials to enhance the mechanical and durability properties of hydrated lime¿pozzolan mixtures, which gave rise to the so-called ¿hybrid systems¿. Two different ...
Moraes, J.C.B; Mitsuuchi Tashima, Mauro; Akasaki, Jorge Luis; Pinheiro Melges, Jose Luis; Monzó Balbuena, José Mª; Borrachero Rosado, María Victoria; Soriano Martínez, Lourdes; Paya Bernabeu, Jorge Juan(Elsevier, 2016-09)
Alkali-activated binders are the new trend in building construction studies due their good mechanical properties and environmental advantages. These type of binders are obtained by a mixing of a solid precursor with an ...
[EN] The ceramic sanitary-ware market generates large amounts of waste, both during the production process and due to construction and demolition practices. In this paper, the effect of different amounts and calcium sources ...
Villca, Ariel R.; Soriano Martinez, Lourdes; Font, Alba; Tashima, Mauro M.; Monzó Balbuena, José Mª; Borrachero Rosado, María Victoria; Paya Bernabeu, Jorge Juan(Elsevier, 2021-03-22)
[EN] Use of lime as construction material is limited mainly by low initial strength. These properties can be
improved by adding pozzolanic materials, but the evolution of the reaction usually needs older ages than
7 days. ...
Pereira, Adriana; Akasaki, Jorge Luis; Melges, José L.P.; Mitsuuchi Tashima, Mauro; Soriano Martínez, Lourdes; Borrachero Rosado, María Victoria; Monzó Balbuena, José Mª; Paya Bernabeu, Jorge Juan(Elsevier, 2015-12)
Sugarcane bagasse is an agricultural waste which can be transformed, for cementing purposes, into an interesting material by combustion. Specifically, the ash (SBA) obtained by auto-combustion was used for preparing ...
This paper provides information about the synthesis and mechanical properties of geopolymers based on fluid catalytic cracking catalyst residue (FCC). FCC was alkali activated with solutions containing different SiO 2/Na ...
Mitsuuchi Tashima, Mauro; Soriano Martínez, Lourdes; Monzó Balbuena, José Mª; Borrachero Rosado, María Victoria; Akasaki, Jorge Luis; Paya Bernabeu, Jorge Juan(Consejo Superior de Investigaciones Científicas (CSIC), 2014-09)
A very simple method based on electrical conductivity and pH measurements was proposed for assessing reactivity of pozzolans. Calcium hydroxide:pozzolan water suspensions were monitored by means of measurements of electrical ...
[EN] Alkali silicates, expensive and highly pollutant chemical reagents, are required to produce the alkaline activator for high-performance alkali-activated materials. This study presents a new silica source for producing ...
Mitsuuchi Tashima, Mauro; Soriano Martínez, Lourdes; Monzó Balbuena, José Mª; Borrachero Rosado, María Victoria; Paya Bernabeu, Jorge Juan(Maney Publishing, 2013-05)
[EN] Alkali activated binders are a new class of binding material with comparable or enhanced performance to Portland cement. These binding materials are obtained by a chemical reaction between an aluminosilicate material ...
Soriano Martinez, Lourdes; Font-Pérez, Alba; Tashima, Mauro M.; Monzó Balbuena, José Mª; Borrachero Rosado, María Victoria; Paya Bernabeu, Jorge Juan(Elsevier, 2020-08-01)
[EN] The use of almond-shell biomass ash (ABA) as an alkali source in one-part blast furnace slag (BFS) mortars activation was investigated for the first time. The chemical composition of ABA revealed high alkalinity ash ...
Font-Pérez, Alba; Soriano Martinez, Lourdes; Tashima, M.M.; Monzó Balbuena, José Mª; Borrachero Rosado, María Victoria; Paya Bernabeu, Jorge Juan(Elsevier, 2020-10-01)
[EN] This paper focuses on investigating greener alternatives of cellular concrete technology to fulfil current searches for a shift to circular economy. A novel one-part eco-cellular concrete (ECC-OP) was developed and ...
Moraes, J.C.B; Tashima, M.M.; Melges, J.L.P.; Akasaki, J.L.; Monzó Balbuena, José Mª; Borrachero Rosado, María Victoria; Soriano Martinez, Lourdes; Paya Bernabeu, Jorge Juan(American Society of Civil Engineers, 2018-06)
[EN] Alkali-activated binders (AABs) are a material obtained from the combination of a solid precursor and an alkaline activating solution. In this study, one solid precursor used was blast-furnace slag (BFS) and the other ...
Bassan De Moraes, Joao Claudio; Queiroz, Daniela Cintra de Araújo; Akasaki, Jorge Luis; Pinheiro Melges, Jose Luiz; Borrachero Rosado, María Victoria; Paya Bernabeu, Jorge Juan; Mitsuuchi Tashima, Mauro(Trans Tech Publications, 2016)
[EN] Sugar cane production is increasing in Brazil due the demand in manufacturing sugar and alcohol. During production process, several wastes are generated, such as sugar cane straw. After a burning process of this waste ...
Alkali activated binders require the addition of a mineral-rich amorphous silica and alumina. This paper proposes the use of a mineral residue from the burning of sugar cane bagasse. The alkali activated mixtures were ...
Mitsuuchi Tashima, Mauro(Universitat Politècnica de València, 2012-07-26)
En la actualidad, el uso de residuos agrícolas y/o industriales en la preparación de conglomerantes para la construcción es un tema de creciente interés. Esto se debe, por una parte, a que permite gestionar algunos tipos ...
[EN] In the context of world concern with the environment, this study aims to characterize an auto combustion produced bamboo leaf ash (BLA) by its pozzolanic behaviour, reactivity and its influence in the total porosity, ...
Geopolymers simultaneously containing two waste materials have been developed: fluid catalytic cracking catalyst (FCC) as mineral admixture and rice husk ash (RHA) for preparing an alkaline activator. Alkaline activators ...
Spent FCC catalyst is a waste from the petrochemical industry which has excellent pozzolanic properties, containing more than 90% silica and alumina. Its similarity to metakaolin creates interesting prospects for its use ...
CASTALDELLI, V.N.; Moraes, J.C.B; Akasaki, Jorge Luis; Pinheiro Melges, Jose Luis; Monzó Balbuena, José Mª; Borrachero Rosado, María Victoria; Soriano Martínez, Lourdes; Paya Bernabeu, Jorge Juan; Mitsuuchi Tashima, Mauro(Elsevier, 2016-06)
Due environmental problems related to Portland cement consumption, many studies have been performed to diminish its use. One solution is the development of alkali-activated binders, which can decrease CO2 emissions and ...
[EN] This study evaluated the compressive strength performance and microstructure of binary blast furnace slag-sewage sludge ash (BFS-SSA) alkali-activated mortars, in which rice husk ash (RHA) was dissolved in NaOH solution ...