Modelling hydration process of cement nanoparticles by using an agent-based molecular formation algorithm.

Cerro Prada, María Elena and Vázquez Gallo, María Jesús and Alonso Trigueros, Jesús María and Romera Zarza, Andrés Luis (2008). Modelling hydration process of cement nanoparticles by using an agent-based molecular formation algorithm.. In: "The IASTED International Conference on Nanotechnology and Applications. NANA 2008", 29/09/2008-01/10/2008, Creta, Grecia. ISBN 978-0-88986-769-7. pp. 66-81.

Description

Title: Modelling hydration process of cement nanoparticles by using an agent-based molecular formation algorithm.
Author/s:
  • Cerro Prada, María Elena
  • Vázquez Gallo, María Jesús
  • Alonso Trigueros, Jesús María
  • Romera Zarza, Andrés Luis
Item Type: Presentation at Congress or Conference (Article)
Event Title: The IASTED International Conference on Nanotechnology and Applications. NANA 2008
Event Dates: 29/09/2008-01/10/2008
Event Location: Creta, Grecia
Title of Book: Nanotechnology and Applications. NANA 2008
Date: 1 October 2008
ISBN: 978-0-88986-769-7
Subjects:
Freetext Keywords: Nanoscale modelling, molecular formation, hydrated Portland cement, nanostructure prediction
Faculty: E.U.I.T. Obras Públicas (UPM)
Department: Ingeniería Civil: Infraestructura del Transporte [hasta 2014]
Creative Commons Licenses: Recognition - No derivative works - Non commercial

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Abstract

This paper presents an agent-based modelling approach for hydration process of Portland cement taking place at the nanoscale. By following a combination of stochastic, deterministic and adaptive rules, cement system is allowed to evolve from an anhydrous separated state to a bond state with enhanced mechanical properties. We consider the two main chemical reactions producing C-HS gel and portlandite, and identify the related anhydrous cement components as two autonomous agents, while water and hydration time are viewed as activator agents. The material representation consists of a geometrical configuration based on a two-dimensional granular fluid, which shows to be suitable when studying nanostructure formation. The resulting agent-based model is tested on a 103μm x 103μm thin film with 20μm thickness containing anhydrous cement. We evaluate the modelling approach after 7 days of hydration from comparison with experimental results, and agreement is good.

More information

Item ID: 3753
DC Identifier: http://oa.upm.es/3753/
OAI Identifier: oai:oa.upm.es:3753
Official URL: http://www.iasted.org/conferences/pastinfo-615.html
Deposited by: Memoria Investigacion
Deposited on: 15 Jul 2010 10:38
Last Modified: 20 Apr 2016 13:13
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