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Buildings 2018, 8(8), 111;

Mechanical and Durability Properties of Green Star Concretes

School of Civil and Mechanical Engineering, Curtin University, Perth, WA 6120, Australia
Received: 8 June 2018 / Revised: 3 August 2018 / Accepted: 16 August 2018 / Published: 17 August 2018
(This article belongs to the Special Issue Environmental Impact Assessment of Buildings)
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This paper presents mechanical and durability properties of green star concretes. Four series of concretes are considered. The first series is control concrete containing 100% ordinary Portland cement, 100% natural aggregates and fresh water. The other three series of concretes are green star concretes according to Green Building Council Australia (GBCA), which contain blast furnace slag, recycled coarse aggregates and concrete wash water. In all above concretes compressive strength, indirect tensile strength, elastic modulus, water absorption, sorptivity and chloride permeability are measured at 7 and 28 days. Results show that mechanical properties of green star concretes are lower than the control concrete at both ages with significant improvement at 28 days. Similar results are also observed in water absorption, sorptivity and chloride permeability where all measured durability properties are lower in green star concretes compared to control concrete except the higher water absorption in some green star concretes. View Full-Text
Keywords: green star concrete; slag; recycled aggregate; wash water; sustainability green star concrete; slag; recycled aggregate; wash water; sustainability

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Shaikh, F. Mechanical and Durability Properties of Green Star Concretes. Buildings 2018, 8, 111.

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