WITHDRAWN: Strength and behaviour of roller compacted concrete using crushed dust

Abstract

Roller compacted concrete is one of the recently developed materials in pavement construction. It is the concrete with zero-slump, highly compacted concrete which is a reliable, economical and durable material for low speed and heavy-duty pavements. The present study highlights identification of materials for roller compacted concrete. It intends to analyse the use of Roller Compacted Concrete Pavement (RCCP) as an alternative of traditional Bituminous Concrete pavements that suffer from rutting and cracking due to heavy loading and hot weather conditions. The study is done using zone II crusher dust, crushed stone and 43 grade cement as constituent materials of Roller Compacted Concrete (RCC). The mechanical strength characteristics of various mixes of roller compacted concrete (RCC) using zone II crusher dust is presented in this work. In this study various mixes were prepared using materials (cement, crusher dust, aggregate). The mixes were proportioned using soil-compaction tests. The Maximum Dry Density (MDD) and Optimum Moisture Content (OMC) of the mixes were determined using Modified Proctor’s Test. Mechanical properties of the mixes have been obtained and the effect of cement content and water/cement (W/C) ratio on mechanical properties has been studied. From the results it is observed that there is a remarkable increase in the compressive strength as well as split tensile strength of roller compacted concrete on increase of cement content. The study concludes that the roller compacted concrete can be used for both base and surface course as well as in other geotechnical applications.