IJBTT

Chloride Penetration Resistance and Behaviour Under Acid Attack of Metakaolin and Silica Fume Based Composite Fiber (Glass and Polypropylene) Reinforced High Performance Concrete

	International Journal of Engineering Trends and Technology (IJETT)
	© 2021 by IJETT Journal
	Volume-69 Issue-4
	Year of Publication : 2021
	Authors : Sachin Patil, Dr.H.M. Somasekharaiah, Dr. H. Sudarsana Rao
	DOI :  10.14445/22315381/IJETT-V69I4P222

Citation 

MLA Style: Sachin Patil, Dr.H.M. Somasekharaiah, Dr. H. Sudarsana Rao  "Chloride Penetration Resistance and Behaviour Under Acid Attack of Metakaolin and Silica Fume Based Composite Fiber (Glass and Polypropylene) Reinforced High Performance Concrete" International Journal of Engineering Trends and Technology 69.4(2021):146-161. 

APA Style:Sachin Patil, Dr.H.M. Somasekharaiah, Dr. H. Sudarsana Rao. Chloride Penetration Resistance and Behaviour Under Acid Attack of Metakaolin and Silica Fume Based Composite Fiber (Glass and Polypropylene) Reinforced High Performance Concrete  International Journal of Engineering Trends and Technology, 69(4),146-161.

Abstract
This investigation evaluates the effect of cement being partially replaced by combined metakaolin and silica fume with glass fibers and polypropylene fibers as an addition to producing high-performance concrete with composite fiber for resistance to hydrochloric acid, magnesium sulfate, sulphuric acid, and chloride penetration for 30, 60 and 90 days. The water to binder ratios (W/B) of 0.275, 0.300, 0.325, and 0.350 and an aggregate to binder ratio (A/B) of 1.75 were adopted. Metakaolin and silica fume were replaced in the range from 0% to 15% each, glass fibers were added in volume percentages from 0% to 1%, and polypropylene fibers were kept constant at 0.25%. The combined effect of metakaolin and silica fume at 5% each as replacement of cement and the addition of composite fiber dosage of glass fiber=1% and polypropylene fibers =0.25% for W/B of 0.275 was found to be the optimum combination to obtain maximum acid attack and Chloride Penetration resistance.

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Keywords
Composite fibers, Metakaolin, Silica fume, Rapid chloride permeability, Acid attack, Durability.