Performance Evaluation of Steel Fibres in Rice Husk Ash Substituted Concretes  

Oleh:

Manoharan, Sounthararajan Vallarasu ; Sivakumar, A.

Jenis: Article from Journal - ilmiah nasional - terakreditasi DIKTI
Dalam koleksi: Journal of Engineering and Technological Sciences vol. 45 no. 03 (2013), page 257-274.
Topik: rice husk ash; setting properties; superplasticizer; strength; ultrasonic; pulse velocity.
Fulltext: 684-2037-1-SM.pdf (2.66MB)

Isi artikel

The potential use of supplementary cementitious materials in plain cement concrete for improving concrete properties has been a growing concern in recent years. In addition, the effective strengthening of the matrix by reinforcements to avoid brittle This provided the motivation as a cement replacement material and brittleness in concrete. The r burnt raw rice husk sintered in a muffle furnace of the rice husk ash provided and thus resulted in high cementing evaluation of the mechanical properties of rice husk ash substituted concrete mixtures containing RHA as a partial cement substitute at 10% and 20% by weight of cement experimental results demons compressive properties compared to plain concrete. tensile and flexural strength concrete with steel fibre added Keywords: rice husk ash; setting properties pulse velocity. 1 Introduction It is understood that worldwide approximately 630 million tons of are produced each year. Because of tremendous increase along milling of rice produces rice husk generation of rice husk on average weight of rice that is processed. used advantageously in civil engineering works. In recent years significant work has been undertaken to investigate rice husk ash as a concrete, either as a partial replacement for cement or as an additive. The present rapid increase of the use of rice husk ash effects on the mechanical properties of cementitious composites. Though added strength and low permeability are the two Sci., Vol. 45, No. 3, 2013, 257-274 257 July 15th, 2013, Accepted for publication August 14th, 2013. 2337-5779, DOI: 10.5614/j.eng.technol.sci.2013.45.3.4 Fibres in Rice Husk Ash & V.M. Sounthararajan Sciences Vellore-632014, Tamil Nadu, India Email: sivakumara@vit.ac.in fibre failure is another requirement for plain concrete. for exploring the benefits of rice husk ash (RHA) the addition of steel fibres for reducing rice husk ash used in this study was the residue of at 800°C. The fine particle size an early pozzolanic reaction upon cement hydration efficiency. This paper reports a systematic replacement levels of cement, with different dosages of steel fibres. Our xperimental demonstrated that 10% RHA substitution led to improved The highest increase of split was reported in the case of RHA substituted added.

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