Next Article in Journal
Optimization of the Iron Ore Direct Reduction Process through Multiscale Process Modeling
Previous Article in Journal
Defect Structure and Oxide Ion Conduction of Potassium Ion Substituted CaWO4
Open AccessArticle

The Microstructure-Mechanical Properties of Hybrid Fibres-Reinforced Self-Compacting Lightweight Concrete with Perlite Aggregate

1
Faculty of Civil Engineering and Architecture, Lublin University of Technology, Nadbystrzycka Str. 40, 20-618 Lublin, Poland
2
Faculty of Economic and Technical Science, Pope John Paul II State School of Higher Education in Biała Podlaska, Sidorska Str. 95/97, 21-500 Biała Podlaska, Poland
3
Faculty of Environmental Engineering, Lublin University of Technology, Nadbystrzycka Str. 40B, 20-618 Lublin, Poland
*
Author to whom correspondence should be addressed.
Materials 2018, 11(7), 1093; https://doi.org/10.3390/ma11071093
Received: 29 May 2018 / Revised: 14 June 2018 / Accepted: 22 June 2018 / Published: 27 June 2018
(This article belongs to the Section Porous Materials)
The purpose of this paper is to determine the influence of the lightweight porous perlite aggregate and two widely used types of fibres on the physical and mechanical properties, frost durability and microstructure of self-compacting lightweight concrete (SCLC). The experimental investigation consisted of tests carried out on cubes and prismatic samples made of SCLC and fibres-reinforced SCLC with variable content ranging from 0.5 to 1% of basalt fibres (BF) and/or 0.5% of steel fibres (SF). In this study, two variable contents of fine perlite aggregate were used: 5% and 15%. The workability (the slump-flow and t500 values) in fresh state SCLCs have been done. Extensive data on compressive and flexural tensile strength in bending behaviour, frost resistance and the microstructure including interfacial transition zone (ITZ) were recorded and analysed. The hybrid fibres-reinforced SCLC with perlite aggregate showed a more ductile behaviour compared to that of SCLC without fibres. Fibres bridge cracks during flexural tensile strength test. BF successfully protected porous SCLC against frost attack, whereas SF succumbed to damage. View Full-Text
Keywords: self-compacting concrete; basalt fibre; steel fibre; perlite; frost resistance; microstructure-mechanical properties; interfacial transition zone self-compacting concrete; basalt fibre; steel fibre; perlite; frost resistance; microstructure-mechanical properties; interfacial transition zone
Show Figures

Figure 1

MDPI and ACS Style

Barnat-Hunek, D.; Góra, J.; Andrzejuk, W.; Łagód, G. The Microstructure-Mechanical Properties of Hybrid Fibres-Reinforced Self-Compacting Lightweight Concrete with Perlite Aggregate. Materials 2018, 11, 1093.

Show more citation formats Show less citations formats
Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Article Access Map by Country/Region

1
Back to TopTop