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Durability of high volume fly ash concrete

Author(s): Himabindu Myadaraboina, Mochamad Solikin, Indubhushan Patnaikuni
Paper category: Proceedings
Book title: Proceedings of the International RILEM Conference
Materials, Systems and Structures in Civil Engineering 2016
Segment on Concrete with Supplementary Cementitious Materials
Editor(s): Ole M. Jensen, Konstantin Kovler and Nele De Belie
e-ISBN: 978-2-35158-179-7
Publisher: RILEM Publications SARL
Publication year: 2016
Pages: 136-145
Total Pages: 10
Language : English

Abstract: Abstract
Concrete is the most used construction material in the world. Also, it is the least energy consuming material in terms of its production compared to other building materials. The use of Fly ash as supplementary cementitious material (SCM) in concrete is well-known because of the durability and cost effectiveness it attributes to the concrete industry. Internationally,cement production is reached to 4.3 billion tonnes in the year 2014. The carbon print of the cement production is raising the importance of increasing the percentage of replacement with fly ash in a dramatic level such as more than 50% which is known as high volume fly ash concrete (HVFAC). This paper presents the durability properties of HVFAC with 50% replacement. The main drawback of fly ash replacements above 20% is the low strength developments compared to OPC concrete. To address this problem, ultra-fine fly ash (UFFA) and lime water as mixing water are used in this project along with raw fly ash and tap water. Also, concrete with OPC is taken as control mix. All concrete mixes are tested for compressive strength, water absorption, carbonation, chloride penetration, and sulphate resistance. All properties are found to be having superior durability compared to OPC concrete.

Online publication : 2016
Publication type : full_text
Public price (Euros) : 0.00

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