Mathematical models of apparent viscosity as a function of water–cement/binder ratio and superplasticizer in cement pastes

Abstract The water–cement/binder ratio and the admixture of water-reducing agents strongly affect the rheological properties of cement pastes. This study develops mathematical models to predict the apparent viscosity of cement pastes with varying water-cement/binder ratios and polycarboxylate-based...

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Main Authors: Yong Yuan, Xiaoyun Wang, Xi Chen, Peng Xiao, Eduardus Koenders, Ying Dai
Format: Article
Language:English
Published: Nature Portfolio 2023-12-01
Series:Scientific Reports
Online Access:https://doi.org/10.1038/s41598-023-48748-4
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author Yong Yuan
Xiaoyun Wang
Xi Chen
Peng Xiao
Eduardus Koenders
Ying Dai
author_facet Yong Yuan
Xiaoyun Wang
Xi Chen
Peng Xiao
Eduardus Koenders
Ying Dai
author_sort Yong Yuan
collection DOAJ
description Abstract The water–cement/binder ratio and the admixture of water-reducing agents strongly affect the rheological properties of cement pastes. This study develops mathematical models to predict the apparent viscosity of cement pastes with varying water-cement/binder ratios and polycarboxylate-based superplasticizer content by introducing the power law shear stress-shear strain relation of non-Newtonian fluids into the Navier–Stokes motion equations. The developed models are compared with the results of rheological experiments and verified for their accuracy in simulating the apparent viscosity of cement pastes. These models provide insight into the rheological behaviour of cement pastes and could have practical applications in the construction industry.
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spelling doaj.art-8f4f47aa790541118976b860ae928d112023-12-17T12:18:32ZengNature PortfolioScientific Reports2045-23222023-12-0113111310.1038/s41598-023-48748-4Mathematical models of apparent viscosity as a function of water–cement/binder ratio and superplasticizer in cement pastesYong Yuan0Xiaoyun Wang1Xi Chen2Peng Xiao3Eduardus Koenders4Ying Dai5College of Civil Engineering, Tongji UniversityCollege of Civil Engineering, Tongji UniversityCollege of Civil Engineering and Architecture, Jiaxing UniversityInstitute of Construction and Building Materials, Technical University of DarmstadtInstitute of Construction and Building Materials, Technical University of DarmstadtSchool of Aerospace Engineering and Applied Mechanics, Tongji UniversityAbstract The water–cement/binder ratio and the admixture of water-reducing agents strongly affect the rheological properties of cement pastes. This study develops mathematical models to predict the apparent viscosity of cement pastes with varying water-cement/binder ratios and polycarboxylate-based superplasticizer content by introducing the power law shear stress-shear strain relation of non-Newtonian fluids into the Navier–Stokes motion equations. The developed models are compared with the results of rheological experiments and verified for their accuracy in simulating the apparent viscosity of cement pastes. These models provide insight into the rheological behaviour of cement pastes and could have practical applications in the construction industry.https://doi.org/10.1038/s41598-023-48748-4
spellingShingle Yong Yuan
Xiaoyun Wang
Xi Chen
Peng Xiao
Eduardus Koenders
Ying Dai
Mathematical models of apparent viscosity as a function of water–cement/binder ratio and superplasticizer in cement pastes
Scientific Reports
title Mathematical models of apparent viscosity as a function of water–cement/binder ratio and superplasticizer in cement pastes
title_full Mathematical models of apparent viscosity as a function of water–cement/binder ratio and superplasticizer in cement pastes
title_fullStr Mathematical models of apparent viscosity as a function of water–cement/binder ratio and superplasticizer in cement pastes
title_full_unstemmed Mathematical models of apparent viscosity as a function of water–cement/binder ratio and superplasticizer in cement pastes
title_short Mathematical models of apparent viscosity as a function of water–cement/binder ratio and superplasticizer in cement pastes
title_sort mathematical models of apparent viscosity as a function of water cement binder ratio and superplasticizer in cement pastes
url https://doi.org/10.1038/s41598-023-48748-4
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