A Multiscale Model for Compressive Strength Evolution of Blended Cement Pastes

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21110%2F15%3A00231558" target="_blank" >RIV/68407700:21110/15:00231558 - isvavai.cz</a>
Result on the web
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DOI - Digital Object Identifier
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Result language
angličtina
Original language name
A Multiscale Model for Compressive Strength Evolution of Blended Cement Pastes
Original language description
This paper presents a new four-level micromechanical model for prediction of compressive strength of pure and blended cements. The model assumes that compressive strength of cement paste is governed by intrinsic tensile strength of C-S-H globules. Failure under compressive loading is associated with tensile stresses appearing on randomly inclined ellipsoidal inclusions within C-S-H which result in strain softening at all hierarchical levels. The addition of unhydrated clinker, supplementary cementitiousmaterials, remaining hydration products, and entrapped / entrained air further decreases the compressive strength of cement paste. The multiscale model uses relevant volume fractions of chemical phases on each homogenization level and encompasses a spatial gradient of C-S-H inbetween individual grains. Identification of the intrinsic tensile strength of C-S-H globules on 95 experimental compressive strength values showed this strength amounts to 320 MPa. Governing factors responsible fo
Czech name
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Czech description
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Project
<a href="/en/project/TE01020168" target="_blank" >TE01020168: Centre for Effective and Sustainable Transport Infrastructure (CESTI)</a><br>
Continuities
S - Specificky vyzkum na vysokych skolach

Publication year
2015
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Article name in the collection
Proceedings of the Fifteenth International Conference on Civil, Structural and Environmental Engineering Computing
ISBN
978-1-905088-63-8
ISSN
1759-3433
e-ISSN
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Number of pages
10
Pages from-to
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Publisher name
Civil-Comp Press Ltd
Place of publication
Stirling
Event location
Praha
Event date
Sep 1, 2015
Type of event by nationality
EUR - Evropská akce
UT code for WoS article
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