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dc.contributor.author | Mitsuuchi Tashima, Mauro | es_ES |
dc.contributor.author | Soriano Martínez, Lourdes | es_ES |
dc.contributor.author | Monzó Balbuena, José Mª | es_ES |
dc.contributor.author | Borrachero Rosado, María Victoria | es_ES |
dc.contributor.author | Akasaki, Jorge Luis | es_ES |
dc.contributor.author | Paya Bernabeu, Jorge Juan | es_ES |
dc.date.accessioned | 2015-05-27T11:38:07Z | |
dc.date.available | 2015-05-27T11:38:07Z | |
dc.date.issued | 2014-09 | |
dc.identifier.issn | 0465-2746 | |
dc.identifier.uri | http://hdl.handle.net/10251/50853 | |
dc.description.abstract | 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 conductivity and pH values. In these suspensions, Ca(OH)2 in solid state was initially present, being them, thus, saturated in this reagent. Three testing temperatures were selected (40, 50 and 60 °C). In the experiments carried out, calcium hydroxide was suspended in deionized water for yielding a lime saturated suspension. The addition of siliceous pozzolan (two types of rice husk ash RHA and two types of densified silica fume DSF were tested) to the saturated lime suspension can produce the unsaturation of the system, depending on the testing time, testing temperature and reactivity of pozzolan. When unsaturation was reached, the loss of electrical conductivity was higher than 30% and the variation of pH was higher than 0.15 units. These threshold values were selected for characterizing the reactivity of pozzolans by means of a proposed template, classifying the pozzolan in three different reactivity levels. | es_ES |
dc.language | Inglés | es_ES |
dc.publisher | Consejo Superior de Investigaciones Científicas (CSIC) | es_ES |
dc.relation.ispartof | Materiales de Construcción | es_ES |
dc.rights | Reconocimiento - No comercial (by-nc) | es_ES |
dc.subject | Reaction | es_ES |
dc.subject | Characterization | es_ES |
dc.subject | Siliceous pozzolan | es_ES |
dc.subject | Silica fume | es_ES |
dc.subject | Rice husk ash | es_ES |
dc.subject.classification | INGENIERIA DE LA CONSTRUCCION | es_ES |
dc.title | New method to assess teh pozzolanic reactivity of mineral admixtures by measn of pH and electrical conductivity measurements in lime: pozzolan suspensions | es_ES |
dc.type | Artículo | es_ES |
dc.identifier.doi | 10.3989/mc.2014.00914 | |
dc.rights.accessRights | Abierto | es_ES |
dc.contributor.affiliation | Universitat Politècnica de València. Instituto de Ciencia y Tecnología del Hormigón - Institut de Ciència i Tecnologia del Formigó | es_ES |
dc.contributor.affiliation | Universitat Politècnica de València. Departamento de Ingeniería de la Construcción y de Proyectos de Ingeniería Civil - Departament d'Enginyeria de la Construcció i de Projectes d'Enginyeria Civil | es_ES |
dc.description.bibliographicCitation | Mitsuuchi Tashima, M.; Soriano Martinez, L.; Monzó Balbuena, JM.; Borrachero Rosado, MV.; Akasaki, JL.; Paya Bernabeu, JJ. (2014). New method to assess teh pozzolanic reactivity of mineral admixtures by measn of pH and electrical conductivity measurements in lime: pozzolan suspensions. Materiales de Construcción. 64(316):32-44. doi:10.3989/mc.2014.00914 | es_ES |
dc.description.accrualMethod | S | es_ES |
dc.description.upvformatpinicio | 32 | es_ES |
dc.description.upvformatpfin | 44 | es_ES |
dc.type.version | info:eu-repo/semantics/publishedVersion | es_ES |
dc.description.volume | 64 | es_ES |
dc.description.issue | 316 | es_ES |
dc.relation.senia | 283236 | |
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