High-Performance Light-Weight Concrete for 3D Printing

Malek Mohammad, Eyad Masad, Thomas Seers, Sami G. Al-Ghamdi

Research output: Chapter in Book/Report/Conference proceedingChapter

11 Scopus citations

Abstract

The aim of this experimental study is to develop high strength, lightweight concrete mixture suitable for 3D printing in construction. This work investigates the effect of replacing normal aggregate either partially or totally with expanded perlite aggregate. This material allows for better thermal insulation properties, thus decreasing the energy usage within the life cycle of the concrete structure. Expanded perlite aggregate was used in concrete by 20 vol.-%, 40 vol.%, 60 vol.%, 80 vol.-% and 100 vol.-% in replacement of the natural aggregate. Material characterization tests of compressive strength, flexural strength, and thermal conductivity were carried out for six concrete mixtures. The proposed concrete mixture, which has 100% of expanded perlite aggregate achieved reduction percentage of thermal conductivity around 62% (0.69 W/mK) relative to normal weight concrete the mixture has a compressive strength of 42 MPa at 28 days. This mixture is appealing for 3D printing in 3D concrete printing as it reduces the environmental impact of the built environment by improving the thermal insulation and decreasing the energy consumption during building operation phase.
Original languageEnglish (US)
Title of host publicationRILEM Bookseries
PublisherSpringereditorial@springerplus.com
Pages459-467
Number of pages9
DOIs
StatePublished - Jan 1 2020
Externally publishedYes

Bibliographical note

Generated from Scopus record by KAUST IRTS on 2023-02-14

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