Civil Engineering and Architecture Vol. 8(5), pp. 1057 - 1062
DOI: 10.13189/cea.2020.080532
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Effect of Metakaolin and Condensed Silica Fume on the Rheological and Structural Properties of Self-compacting Concrete

S.Vijaya Kumar ¹, B.Dean Kumar ^2,*, B L P Swami ^3
1 Department of Civil Engineering, Vasavi College of Engineering, Hyderabad, India
² Department of Civil Engineering, Jawaharlal Nehru Technological University, Hyderabad, India
³ Department of Civil Engineering, Methodist College of Engineering and Technology, Hyderabad, India

ABSTRACT

This article deals with the comparison between the metakaolin and condensed silica fume contributions in the flyash based self-compacting concrete (SCC). Self-compacting concrete with mineral admixtures like flyash and condensed silica fume is prepared by cement replacing partially at 20 and 10 percentages respectively. M40 grade of the concrete was designed by adjusting the ratio of the fine aggregate to the total aggregate volume to fulfill the requirements of the SCC. Another M40 grade of SCC is designed with the flyash and metakaolin as the mineral admixtures with the same percentage of replacement for cement by mass. Rheological properties are examined as per EFNARC specifications for flowability; passing ability and segregation resistance for both the triple blended self-compacting concretes (TBSCC). For getting the required flowability of concrete and for modifying the viscous nature of the concrete, superplasticizer and viscosity modifying agents are additionally added to the concrete. The structural properties like compression and split tensile strengths of the specimens are recorded by conducting the standard tests. By comparing the strength results, it is concluded that metakaolin and silica fume have only marginal changes between them in the rheological as well as the mechanical properties of the triple blended self-compacting concrete.

KEYWORDS
Self-compacting Concrete, Triple Blended, Metakaolin, Condensed Silica Fume, Flyash, Rheology of the Concrete, Structural Properties, Superplasticizer, Viscosity Modifying Agent (VMA)

Cite This Paper in IEEE or APA Citation Styles
(a). IEEE Format:
[1] S.Vijaya Kumar , B.Dean Kumar , B L P Swami , "Effect of Metakaolin and Condensed Silica Fume on the Rheological and Structural Properties of Self-compacting Concrete," Civil Engineering and Architecture, Vol. 8, No. 5, pp. 1057 - 1062, 2020. DOI: 10.13189/cea.2020.080532.

(b). APA Format:
S.Vijaya Kumar , B.Dean Kumar , B L P Swami (2020). Effect of Metakaolin and Condensed Silica Fume on the Rheological and Structural Properties of Self-compacting Concrete. Civil Engineering and Architecture, 8(5), 1057 - 1062. DOI: 10.13189/cea.2020.080532.