Portland cement versus hybrid cement and geopolymers: performance at high temperatures

Qu, Bo and Martin Sanz, Antonia and Pastor Caño, Jose Ignacio and Palomo, Angel and Fernández Jiménez, A. (2015). Portland cement versus hybrid cement and geopolymers: performance at high temperatures. In: "14th International Congress on the Chemistry of Cement (ICCC 2015)", 13-16 octubre 2015, Beijing, China. pp. 1-10.

Description

Title: Portland cement versus hybrid cement and geopolymers: performance at high temperatures
Author/s:
  • Qu, Bo
  • Martin Sanz, Antonia
  • Pastor Caño, Jose Ignacio
  • Palomo, Angel
  • Fernández Jiménez, A.
Item Type: Presentation at Congress or Conference (Article)
Event Title: 14th International Congress on the Chemistry of Cement (ICCC 2015)
Event Dates: 13-16 octubre 2015
Event Location: Beijing, China
Title of Book: Proceedings the 14th International Congress on the Chemistry of Cement (ICCC 2015)
Date: 2015
Subjects:
Freetext Keywords: High-temperature strength, durability, hybrid eco-cements, alkali-activated fly ash, paste
Faculty: E.T.S.I. Caminos, Canales y Puertos (UPM)
Department: Ciencia de los Materiales
Creative Commons Licenses: Recognition - No derivative works - Non commercial

Full text

[img] PDF - Users in campus UPM only - Requires a PDF viewer, such as GSview, Xpdf or Adobe Acrobat Reader
Download (880kB)

Abstract

This paper reports on a comparative study of the mechanical performance at high temperatures of a commercial Portland cement (CEM I 42.5 (OPC)), a hybrid cement (CEM HYC = 30% clinker + 32.5 % BFS + 32.55 % FA + 5 % alkaline activator) and a geopolymer (fly ash-activated with waterglass solution). Two types of mechanical tests were conducted on samples made of each of these three cementitious systems: i) high-temperature mechanical tests to determine mechanical strength and ii) post-thermal treatment tests to evaluate residual strength after two hours of exposure to temperatures ranging from 400 °C to 1000 °C. Differential thermo-gravimetric (DTA)/TG, X-ray diffraction and Hg porosimetry were applied to track the mineralogical and microstructural variations taking place in the materials. The results of these tests were correlated to the observed mechanical behaviour. The results from the three binders have provided new ideas about the relationship between the elemental composition of materials and high-temperature performance. This relationship will be an important factor to take into account when determining the high-temperature performance of future cements and concretes.

Funding Projects

TypeCodeAcronymLeaderTitle
Government of SpainBIA2013-43293-RUnspecifiedUnspecifiedUnspecified
Government of SpainRTC-2014-2351-5UnspecifiedUnspecifiedUnspecified
Government of SpainMAT2012-38541-C02-02UnspecifiedUnspecifiedUnspecified
Madrid Regional GovernmentS2013/MIT-2862-MULTIMATCHALLENGEUnspecifiedUnspecifiedUnspecified

More information

Item ID: 42156
DC Identifier: http://oa.upm.es/42156/
OAI Identifier: oai:oa.upm.es:42156
Official URL: http://iccc2015.csp.escience.cn/dct/page/1
Deposited by: Memoria Investigacion
Deposited on: 07 Jul 2016 17:56
Last Modified: 07 Jul 2016 17:56
  • Logo InvestigaM (UPM)
  • Logo GEOUP4
  • Logo Open Access
  • Open Access
  • Logo Sherpa/Romeo
    Check whether the anglo-saxon journal in which you have published an article allows you to also publish it under open access.
  • Logo Dulcinea
    Check whether the spanish journal in which you have published an article allows you to also publish it under open access.
  • Logo de Recolecta
  • Logo del Observatorio I+D+i UPM
  • Logo de OpenCourseWare UPM