EFFECT OF M-SAND AND GGBS ON STRENGTH AND COMPACTION CHARACTERISTICS OF ROLLER COMPACTED CONCRETE PAVEMENT (RCCP)

S.Krishna Rao, P.Sravana , T.Chandrasekhara Rao

Abstract: Roller Compacted Concrete (RCC) is a new construction methodology than a construction material used for paving applications across the world. Manufactured Sand (M-Sand) is produced from stone crusher units contains considerable amounts of finer material of size less than 0.075mm and more angular than river sand. M-Sand can be used as alternate material for River sand. In the present paper an investigation was done on the effect of M-Sand on the strength and compaction characteristics of RCC using GGBS as mineral admixture. The Mix design is done with soil compaction Principles and based on ACI 211.3R guidelines. Ordinary Portland cement was partially replaced with GGBS at 10%, 20%, 30%, 40%, 50%, and 60 % by weight. Compaction characteristics are analyzed using OMC and MDD curve. Variation of Optimum Moisture Content with increase in GGBS content is studied. The relationship between density and percent replacement of cement with GGBS is established. With increased levels of GGBS content caused the increase in Flexural, Compressive and split tensile Strength values at 28 days and 90 days of curing.

Keywords: Roller Compacted Concrete Pavement; Optimum Moisture Content; Maximum Dry Density; GGBS; M - Sand; Flexural Strength

DOI: https://doi.org/10.15623/ijret.2015.0425052