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Pozzolanic Characteristics of Young Toba Tuff


Affiliations
1 Department of Geology, Anna University, Chennai 600 025, India
2 Department of Civil Engineering, Indian Institute of Technology Madras, Chennai 600 036, India
 

Portland Pozzolana Cement (PPC) is widely used to achieve durable and sustainable concrete in modern construction. In the present study, the potential use of natural volcanic ash in the manufacturing of PPC has been studied. Young Toba Tuff (YTT) was collected from Jwalapuram, Andhra Pradesh, India. The pozzolanic performance of this ash was assessed by Strength Activity Index (SAI) and Frattini test. SAI of YTT was found to be above 75% for sufficient pozzolanicity. Further, the results of Frattini test were below the lime solubility curve, indicating that YTT could be potentially useful as pozzolanic material in concrete.

Keywords

Concrete, Pozzolanic Characteristics, Strength Activity Index, Volcanic Ash.
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  • Pozzolanic Characteristics of Young Toba Tuff

Abstract Views: 206  |  PDF Views: 79

Authors

V. H. R. Siva
Department of Geology, Anna University, Chennai 600 025, India
Hema Achyuthan
Department of Geology, Anna University, Chennai 600 025, India
Manu Santhanam
Department of Civil Engineering, Indian Institute of Technology Madras, Chennai 600 036, India

Abstract


Portland Pozzolana Cement (PPC) is widely used to achieve durable and sustainable concrete in modern construction. In the present study, the potential use of natural volcanic ash in the manufacturing of PPC has been studied. Young Toba Tuff (YTT) was collected from Jwalapuram, Andhra Pradesh, India. The pozzolanic performance of this ash was assessed by Strength Activity Index (SAI) and Frattini test. SAI of YTT was found to be above 75% for sufficient pozzolanicity. Further, the results of Frattini test were below the lime solubility curve, indicating that YTT could be potentially useful as pozzolanic material in concrete.

Keywords


Concrete, Pozzolanic Characteristics, Strength Activity Index, Volcanic Ash.

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DOI: https://doi.org/10.18520/cs%2Fv109%2Fi10%2F1869-1874