Published Paper Details:

The present experiment aims the Comparative Study on Ultra High-Performance Concrete with and without Coarse Aggregate (RPC) by Particle Packing Method. The Present work is carried out on rheological and mechanical property of two design mixes of Ultra High-performance concrete in which one is without coarse aggregate (RPC) and the other is with coarse aggregates (Modified RPC) of 12.5mm down size. The behavior in the new state of each mix is studied by varying the water cement ratio by 0.3,0.28 & 0.26. The two mineral admixtures used in the mixes are 10% micro silica and 5% metakaolin replacing cement by weight, Manufactured Sand (M-Sand) and quartz sand are used as fine aggregates. Quartz sands consist of 60mesh, 100mesh, and 200mesh. 1% Steel fibers are used in both the mixes to resist shrinkage cracks in the concrete mix and to make the concrete ductile. Some properties of fresh UHPC were investigated with the experimental apparatus, which are usually used to determine the properties of self-compacting concrete the UHPC are tested by Slump flow test, L-box test, V-funnel test, and U-box test. The flowing ability, passing ability, filling ability of fresh UHPC are evaluated. Then the specimens are casted and tested for its Compressive strength. It has been observed that the compressive strength of the mix without coarse aggregate (RPC) is 5% to 10% higher than that with the coarse aggregate.