Plastic shrinkage and strength parameters of high volume fly ash self compacting concrete admixed with alkali resistant glass fibres

The present study aims to test the influence of Alkali Resistant Glass Fibres on compressive, split tensile and flexural strengths along with plastic shrinkage properties of High Volume Fly Ash Self-Compacting Concrete (HVFASCC). The powder content (600 kg/m3) and water to powder ratio (0.325) are kept constant. A constant powder content is maintained throughout the study with cement replacements of thirty, forty, fifty, sixty and seventy percent class F fly ash. The dosage of glass fibres is 0.03% of total weight of concrete. Experimental investigations on these mixes are made to attain the fresh properties of concrete on flowing, filling and passing abilities. The HVFASCC mixes with glass fibres have developed the ninety days compressive strengths ranging from 35.0 MPa to 61.40 MPa. Addition of glass fibres to HVFASCC has shown less significant effect on the strength parameters at early age strengths but it has improved concrete resistance to plastic shrinkage.