On the Pore Structures of Lightweight Self-Compacting Concrete Containing Silica Fume

Abstract

This paper presents the results of an experimental study about the pore structure of lightweight self-compacting concrete with different amounts of silica fume and water-to-cement ratios. Mercury intrusion porosimetry was used to test the porosity and pore sizes. The fractal characteristics of the pore structures were studied, and the pore mass and solid mass fractal dimensions were calculated based on well-established methods. The optimum amount of silica fume was determined based on fractal dimension. The results have showed that compressive strength and water penetration depth increase with the increase of fractal dimension and have good correlation with fractal dimensions.

Department(s)

Civil, Architectural and Environmental Engineering

Keywords and Phrases

Compressive strength; Critical pore diameters; Fractal analysis; Lightweight self-compacting concrete; Mercury intrusion porosimetry; Penetration depth; Pore structure; Porosity; Threshold pore diameters

International Standard Serial Number (ISSN)

0950-0618

Document Type

Article - Journal

Document Version

Citation

File Type

text

Language(s)

English

Rights

© 2018 Elsevier, All rights reserved.

Publication Date

01 Dec 2018

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