Browsing by Subject "Ciment"
Now showing items 1-20 of 46
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A Discussion of the Paper "Hydration Reactions of Nonstoichiometric Barium Orthoaluminates" by T.R.N. Kutty and M. Nayak
(Elsevier, 1999-02)
Article
Restricted access - publisher's policy -
A nanoscale study of dissolution and growth processes in cement hydrates
(Universitat Politècnica de Catalunya, 2012-11-30)
Doctoral thesis
Open AccessThis thesis aims at providing new knowledge on the, otherwise poorly known, molecular-scale mechanisms that operate during hydration of cement phases and dissolution of their hydrates. In order to pursue this objective, a ... -
An X-ray photoelectron spectroscopy study of the hydration of C2S thin films
(2014-06)
Article
Restricted access - publisher's policyElectron-beam evaporation was used to produce thin films of ß-dicalcium silicate. Chemical and mineralogical compositions were characterized by X-ray photoelectron spectroscopy (XPS) and grazing-angle X-ray diffraction ... -
Carbonation of ternary building cementing materials
(2012-11)
Article
Restricted access - publisher's policyThe carbonation processes of ettringite and calcium aluminate hydrates phases developed by hydration of calcium aluminate cement, fly ash and calcium sulphate ternary mixtures have been studied. The hydrated samples were ... -
Cementos químicos formulados con subproductos de óxido de magnesio
(Consejo Superior de Investigaciones Científicas (CSIC), 2008-10-31)
Article
Open AccessEs posible obtener cementos de fosfato de magnesio y potasio (KMgPO4·6H2O; K-estruvita), mediante la reacción en medio acuoso del óxido de magnesio y el dihidrogenofosfato de potasio, siendo ésta una reacción exotérmica ... -
Changes in properties of cement and lime mortars when incorporating fibers from end-of-life tires
(2016-02-05)
Article
Open AccessThis paper studies the addition of fibers from end-of-life tires to commercial mortar mixtures. Two different types of mortar, one lime-plastic and other cement-fluid, are mixed with different percentage of fibers ranging ... -
Chemically bonded cements formulated with by-products of magnesium oxide
(2008-10)
Article
Open AccessThe casting of magnesium and potassium phosphate (KMgPO4•6H2O; K-struvite) cements becomes possible after the aqueous reaction between magnesium oxide and potassium dihydrogen phosphate. This reaction is quite exothermic ... -
Ciments de fosfat formulats amb subproductes de magnesi i estudi de la incorporació de fibres com a reforç
(Universitat Politècnica de Catalunya, 2012-06)
Master thesis
Open AccessEn els darrers anys s’ha estat investigant per tal d’enriquir l’oferta de materials en la construcció, millorar-ne les prestacions i a més contribuir, en la mesura possible, en la sostenibilitat i el reciclatge. Seguint ... -
"Control low strength materials (CLSM)" a sustainable product for our urban environment
(Universitat Politècnica de Catalunya, 2015-07-16)
Bachelor thesis
Restricted access - confidentiality agreement -
Desenvolupament de ciments de fosfat formulats amb subproducte de magnesi que incorporen materials de canvi de fase
(Universitat Politècnica de Catalunya, 2015-04-12)
Master thesis (pre-Bologna period)
Open AccessEls ciments químics de fosfat, altrament coneguts com a Chemically Bonded Phosphate Ceramics (CBPC), s’obtenen a partir de la reacció àcid-base en medi aquós, entre un òxid metàl·lic i un fosfat àcid. Es tracta d’una ... -
Disseny de mobiliari urbà de formigó
(Universitat Politècnica de Catalunya, 2017-07)
Bachelor thesis
Open AccessEn aquest projecte s’han avaluat les necessitats que presenta el vianant enfront a la quantitat d’usos que ofereix la ciutat. Una vegada quantificades les necessitats o observats els problemes s’ha portat a terme una llista ... -
Durabilitat de fibrociments especials en ambients altament agressius
(Universitat Politècnica de Catalunya, 2018-07-03)
Bachelor thesis
Open AccessThe usage of large amounts of cement to build livestock structures is a common practice. In the past few years, different research projects have been carried out with new cement mixtures, reinforced with natural fibres of ... -
Effect of drying and rewetting cycles of cellulosic fibres on resistance of cementitious composites
(2009-12-14)
Lecture
Open Access -
Effect of drying and rewetting cycles on the structure and physicochemical characteristics of softwood fibres for reinforcement of cementitious composites
(2010-01-05)
Article
Restricted access - publisher's policyThe changes produced in cellulosic fibres when they are subjected to successive drying and rewetting cycles could have an important impact on the resistance and durability of cement mortar composites based on these fibres. ... -
Effect of nanocelluloses on the microstructure and mechanical performance of CAC cementitious matrices
(2019-02-25)
Article
Restricted access - publisher's policyNanofibrillated cellullose -
Effect of sulfate content on cement mixtures
(2013-07-13)
Article
Restricted access - author's decisionPortland cement, calcium aluminate cement and calcium sulfate mixtures were investigated to determine the influence of sulfates and the effect of curing conditions on durability. This study focused on the richest mix of ... -
El ciment és vida: memòria de sostenibilitat 2007
(Agrupació de Fabricants de Ciment de Catalunya (A. Josa coordinador), 2007-01-15)
Book
Open AccessEl ciment és, amb tota probabilitat, el producte que més contribueix a fer habitable el planeta. Ciment és sinònim de progrés humà. Des d’infraestructures de tractament de l’aigua fins a vies de comunicació, des d’habitatges ... -
Estudi de millora de qualitat de producció de refabricats de formigó d'ús urbà i ornamental
(Universitat Politècnica de Catalunya, 2007-01)
Master thesis (pre-Bologna period)
Restricted access - author's decision
Covenantee: Manufactures MagoEl projecte tracta de millorar la pasta de formigó i d’establir uns percentatges en pes òptims dels diferents materials que composen la pasta, per tal de minimitzar al màxim el número de peces que es trenquen durant el ... -
Evaluation, comparison and differentiation of geopolymers by studying microstructural
(Institute of Research Engineers and Doctors (the IRED), 2015-04-30)
Article
Open AccessGeopolymers are materials derived from an activation process materials with high content in silicon and aluminum, that in contact with an alkaline solution can acquire cementitious properties, and whose added value is ... -
Formulaciones de cemento de fosfato con subproductos de magnesio y su aplicación como material reparador
(Universitat Politècnica de Catalunya, 2011-04)
Master thesis (pre-Bologna period)
Open AccessLos cementos de fosfato, también conocidos como CBPC (Chemically Bonded Phosphate Ceramic), se obtienen a partir de una reacción ácido-base en medio acuoso, entre un óxido metálico y un fosfato ácido. Esta reacción es ...
