A Phenomenological Model for Hydration Heat Evolution of a Cemented Waste Form

Research output: Contribution to report/book/conference proceedingsIn-proceedings paper

Abstract

This paper presents an extension of an existing phenomenological model for predicting the evolution of hydration heat of a cemented waste form. The cemented waste form is essentially a mixture of blended cement and homogeneous low- and intermediate-level liquid (simulant) radioactive waste (sludge). The motivation stems from the fact that the existing empirical or phenomenological models are not designed to handle the interaction of a blended cement system with the waste sludge. The main objective of the proposed model is to minimize the number of isothermal or semi-adiabatic experiments (and thus the cost) required to design a promising recipe for conditioning the waste form. The paper demonstrates the capability of the model to successfully predict the evolution of hydration heat for various cemented waste form recipes.

Details

Original languageEnglish
Title of host publication4th International RILEM conference on Microstructure Related Durability of Cementitious Composites
Subtitle of host publication(Microdurability2020)
PublisherTU Delft
Pages1-15
Number of pages15
ISBN (Print)9789463664226
Publication statusPublished - 29 Apr 2021
Event2021 - 4th International RILEM conference on Microstructure Related Durability of Cementitious Composites : (Microdurability2020) - Online
Duration: 29 Apr 202125 May 2021

Conference

Conference2021 - 4th International RILEM conference on Microstructure Related Durability of Cementitious Composites
Period2021-04-292021-05-25

Keywords

  • Radioactive, Hydration heat, Cement, Supplementary cementitious materials, Sludge

ID: 7179685