STRENGTH PROPERTIES OF SELF COMPACTING CONCRETE WITH GLASS FIBERS AND REPLACEMENT OF FINE AGGREGATE WITH QUARRY ROCK DUST
Keywords:
Self Compacting Concrete, Quarry rock dust, high-performance concrete, glass fibers, compressive strength, split tensile strength.Abstract
Self Compacting concrete is high – performance concrete which flow under its own weight to fill form work and self consolidates without any mechanical vibration. Such concrete can accelerate the placement, reduce the labor requirements needed for consolidation & finishing.Concrete plays major role in construction industry. It is made of coarse aggregate, fine aggregate mixed with cement and water. But River sand is high in cost and rare material. Due to increase in its usage depletion of sand deposits is occurring. Quarry Rock Dust (QRD), a by-product from crushing process during quarrying is substitute materials for the natural river sand. In general, concrete is strong in compression & weak in tension. In this research, to increase the Tensile property of Concrete, Glass Fibers are added with dosage of 1kg per m3 of concrete. In this investigation, an attempt is made to introduce the QRD in a percentage variation and to quantify the optimum usage of QRD in replacement to Natural Sand for Fiber Reinforced Self Compacting Concrete (FRSCC). Compressive Strength & Split Tensile Strength Tests were conducted to study the Mechanical Properties of FRSCC for the replacement of Natural Sand with QRD.
