Effect of Polypropylene fibres on the Workability parameters of Extrudable Cementitious Material

Research output: Chapter in Book/Report/Conference proceedingChapterpeer-review

20 Downloads (Pure)

Abstract

Additive manufacturing in construction industry has been introduced as an aspiration for a more sustainable built environment and currently evolving with high demand amongst researches. This study is an investigation of the influence of polypropylene (PP) fibre addition on the workability parameters of a new extrudable concrete mixture. As the quality of final printed structure prominently depends on the fresh state properties of concrete, this investigation mainly focused on the rheological properties such as workability (flow), setting time, extrudability and buildability. These parameters were systematically investigated through a small scale experimental process with time after mixing. The selected control mix with Ground granulated blast furnace slag (GGBS) and Silica Fume (SF) was used in this analysis. The Control cementitious specimens without fibre inclusion and with fibre addition in different volume fraction of binder, ranging from 0.5% to 3% were printed. The results showed that the fibre addition of 0, 0.5 and 1.0% have the better flowability and extrudability compared to 1.5, 2 and 3%. Also, reduction in the print quality was assessed visually with increasing fibre percentage. However, results indicated that the initial setting time is comparatively low for those mixes with higher fibre inclusion which is required for better bond strength between layers. Moreover, higher fibre content caused better buildability and shape retention in the extruded samples.
Original languageEnglish
Title of host publicationICSECM 2019
Subtitle of host publicationProceedings of the 10th International Conference on Structural Engineering and Construction Management
EditorsRanjith Dissanayake, Priyan Mendis, Kolita Weerasekera, Sudhira De Silva, Fernando Shiroma
Place of PublicationSingapore
PublisherSpringer
Pages427-435
Number of pages9
Volume94
ISBN (Electronic)9789811572227
ISBN (Print)9789811572210
DOIs
Publication statusPublished - 2021
Event10th International Conference on Structural Engineering and Construction Management - Kandy, Sri Lanka
Duration: 12 Dec 201914 Dec 2019

Publication series

NameLecture Notes in Civil Engineering
PublisherSpringer
Volume94
ISSN (Print)2366-2557
ISSN (Electronic)2366-2565

Conference

Conference10th International Conference on Structural Engineering and Construction Management
Country/TerritorySri Lanka
CityKandy
Period12/12/1914/12/19

Fingerprint

Dive into the research topics of 'Effect of Polypropylene fibres on the Workability parameters of Extrudable Cementitious Material'. Together they form a unique fingerprint.

Cite this