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Experimental and Computational Study on the Influence of Geometric Characteristics of Mineral Filler on Mastic Rheological Behavior by Baodong Xing; Xiaobo Lv; Aiming Song; Chen Fang; Weiyu Fan; Yuchao Lyu is a Engineering article available to read on EtoBox.

What is Experimental and Computational Study on the Influence of Geometric Characteristics of Mineral Filler on Mastic Rheological Behavior about?

The article aims to appraise the relationship between filler geometry and mastic rheological behavior. Limestone and granite filler with four size fractions were produced and optimized via simplex centroid design. Their geometrical characteristics were characterized by grading tests and digital imaging processes. The rheological properties of mastics were evaluated using a dynamic shear rheometer. Results revealed that each granite filler had more regular contour shape (except g 1 ), richer angularity (except g 1 , g 2 , g 5 and g 17 ) and surface texture than corresponding limestone filler. The established dynamic viscoelastic model based on fractional theory was found to agree well with experimental data, indicating mastic rheological behavior could be accurately modeled. Furthermore, grey relational analysis results demonstrated that particle shape and angularity were the determining influential factors for mastic rheological behavior, regardless of filler types. All the results were instructive to select the appropriate fillers that produced mastics with desired performance.

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Author

Baodong Xing; Xiaobo Lv; Aiming Song; Chen Fang; Weiyu Fan; Yuchao Lyu

Publisher

Elsevier BV

Published

2023

Language

EN

Field

Engineering (Physical Sciences)