A Study on Self-curing and Self-compacting Concrete Using Polyethylene Glycol

1Dadaji B Jadhav Is Currently Pursuing Master Degree Program In Structural Engineering And Construction, BIT Ballarpur, Maharashtra, India. 2Ranjana Ghate Is An Astt. Prof. In Dept. Of Civil Engineering, BIT Ballarpur, Maharashtra, India. ---------------------------------------------------------------------***--------------------------------------------------------------------Abstract Self-curing is done in order to fulfill the water requirements of concrete whereas self-compacting concrete is prepared so that it can be placed in difficult positions and congested reinforcements. This investigation is aimed to utilize the benefits of both self-curing as well as self-compacting. The present investigation involves the use of self-curing agent viz., polyethylene glycol (PEG) of molecular weight 4000 (PEG 4000) for dosages ranging between 0.1 to 1% by weight of cement added to mixing water. Two mixes with different w/c ratio were considered in the investigation. Workability tests i.e. slump flow, T50, V-funnel, J-ring, L-box were conducted on the fresh concrete whereas water retention and compressive strength were evaluated to determine the properties of hardened concrete. Comparative studies were carried out for water retention and compressive strength for conventional SCC and self-cured SCC. The compressive strength of self-cured SCC are comparable with traditional cured specimens at lower w/c ratio whereas does not provide satisfactory results at higher w/c ratio.