Comportamiento mecánico de mezclas de escoria vítrea de horno alto y metacaolín activadas alcalinamente. Estudio estadístico

Higuera, I.; Varga, Csilla; Palomo, José; Gil-Maroto, A.; Vázquez, T.; Puertas, Francisca

doi:10.3989/mc.2012.00111

Cited by 5 publications

(3 citation statements)

References 17 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Prior studies have shown that the co-precipitation of these two gels in hybrid cements is possible (38)(39)(40)(41)(42)(43)(44)(45)(46), although recent research has revealed that the two products do not develop singly as two separate gels, but that they interact, undergoing structural and compositional change in the process (104).…”

Section: Co-precipitation Of Cementitious Gels: C-s-h + N-a-s-hmentioning

confidence: 99%

“…Procedure 3: today, a mixed alkaline activation procedure, a combination of the preceding two, can also be described. The product in this case is a new type of binder known as a hybrid alkaline cement, formed as the result of the alkaline activation of materials with CaO, SiO 2 and Al 2 O 3 contents >20% (38)(39)(40)(41)(42)(43)(44)(45)(46).…”

Section: Alkali-activated Cementsmentioning

confidence: 99%

“…Examples are cement+slag, cement+fly ash, cement+slag+fly ash (38)(39)(40)(41)(42). Group B comprises blends containing no portland cement: blast furnace slag+fly ash, phosphorous slag+blast furnace slag+fly ash and similar (43)(44)(45)(46).…”

Section: Alkali-activated Cementsmentioning

confidence: 99%

See 2 more Smart Citations

A review on alkaline activation: new analytical perspectives

et al. 2014

View full text Add to dashboard Cite

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 absurdity, that opinion has been widely accepted as a basic premise by the scientific and technical community working in the area of the chemistry of cement. In 1957 Glukhovsky proposed a working hypothesis in which he established a close relationship between alkalis and cementitious materials. That hypothesis has become consolidated and has served as a basis for developing a new type of binders, initially called "alkaline cements". The present paper reviews the most significant theoretical interpretations of the role played by alkalis in the formation of the "stony" structure of cement. It ends with a broad overview of the versatility of this type of materials for industrial applications and a discussion of the possibility of building on the existing legislation to meet the need for the future regulation of alkaline cement and concrete manufacture. RESUMEN: Activación alcalina: Revisión y nuevas perspectivas de análisis.Hace algunos años, la sola idea de la presencia de álcalis en una matriz de cemento Portland se consideraba casi como una aberración, o como un error imperdonable; convirtiéndose en un postulado básico (absurdo) ampliamente aceptado por la comunidad científica y técnica vinculada a la química de los cementos. En 1957 Glukhovsky propuso una hipótesis en la que se establecía una estrecha relación entre los álcalis y los materiales cementantes. Hoy día nadie duda de que dicha hipótesis ha servido de base para el desarrollo de una nueva clase de materiales cementantes: "cementos alcalinos". En el presente trabajo se hace una revisión sobre los aspectos teóricos más relevantes del papel de los álcalis en la formación de estos conglomerantes. También se da una visión genérica de su versatilidad, desarrollo industrial y estado de la normativa actual para regular en el futuro la fabricación de cementos y hormigones alcalinos.

show abstract

Section: Co-precipitation Of Cementitious Gels: C-s-h + N-a-s-hmentioning

confidence: 99%

Section: Alkali-activated Cementsmentioning

confidence: 99%

See 1 more Smart Citation

A review on alkaline activation: new analytical perspectives

et al. 2014

View full text Add to dashboard Cite

show abstract

Análisiscomparativodelas propiedades mecánicas de geopolímeros queincorporannanowhiskersdeSiCynanopartículasdeTiO2

Taborda-Barraza

Azevedo

Gleize

et al. 2020

revuin

View full text Add to dashboard Cite

Un geopolímero a base de metacaolin fue fabricado con 5 proporciones de dos nanomateriales diferentes. Por un lado, nanowhiskersde carburo de silicio y, por otro lado, nanopartículas de dióxido de titanio. Ambos fueron colocados en agua y recibieron energía ultrasónica para ser dispersados. Fueron analizadas los efectos sobre las propiedades mecánicas y la cinética de reacción. Comparados con la matriz de referencia, los resultados evidenciaron una tendencia al incremento de la resistencia a la flexión. Probablemente por la geometría de los nanowhiskersde SiC y el refinamiento de poros por las partículas de nano-TiO2. Las curvas de calorimetría mostraron que al incorporar nanopartículas de TiO2se obtuvo una reducción del 92 % en el calor total, mientras que, los nanowhiskers de SiC produjeron una reducción del 25 % en el calor total.

show abstract

Raw Materials for Geopolymerisation

Mucsi¹,

Ambrus²

2017

The Publications of the MultiScience - XXXI. MicroCAD International Scientific Conference

View full text Add to dashboard Cite

Geopolymers are inorganic alumina-silicate materials with excellent physical and chemical properties. Despite being a rather recent research topic, many papers and books have been published focusing on various aspects of geopolymerisation: the history, properties, production, raw materials, applications and development of geopolymers. A brief overview of geopolymer technology is presented in the article, emphasising the great variety of raw materials that can be used for geopolymer production. Considering the variety of the origin of these materials, three categories are distinguished: primary raw materials which consist of natural minerals, secondary raw materials which are industrial wastes and by-products, and wastes and byproducts of natural origin. In spite of not being widely accepted by the industry yet, geopolymerisation has the potential to become a valuable waste-recycling technology in the future.

show abstract

Comportamiento mecánico de mezclas de escoria vítrea de horno alto y metacaolín activadas alcalinamente. Estudio estadístico

Cited by 5 publications

References 17 publications

A review on alkaline activation: new analytical perspectives

A review on alkaline activation: new analytical perspectives

Análisiscomparativodelas propiedades mecánicas de geopolímeros queincorporannanowhiskersdeSiCynanopartículasdeTiO2

Raw Materials for Geopolymerisation

Contact Info

Product

Resources

About