Experimental investigation on the properties of polymer modified SCC

This paper presents an experimental investigation on the properties of polymer modified self compacting concrete SCC. This concrete is considered as a modification of polymer concrete. Polymer modified self compacting concrete achieves the advantages of both self compacting concrete and polymer modified concrete. Polymer modified SCC may be used successfully in repair of concrete elements or construct new concrete elements especially when concrete subjected to sever conditions. There is no further information about properties of polymer modified SCC. This research aims to study the interactions between main self compacting concrete components (filler and high dose of chemical admixtures) and main components of polymer modified concrete which is polymer itself. The effect of polymer content, polymer type, filler type and base of chemical admixtures were studied. Cube compressive strength, tensile strength, dynamic modulus of elasticity, bond strength between concrete and steel reinforcement, bond strength between self compacting concrete and old concrete, thermogravimetric and X-ray diffraction analysis were used to evaluate the effect of studied parameters. From this work, styrene butadiene rubber and polyvinyl acetate can be used to produce polymer modified self compacting concrete. Also, polymer self compacting concrete has good mechanical properties especially tensile strength and bond strength. Finally, the use of polymer decreases the degree of hydration of cement.

► This work study properties of polymer modified SCC which can be used in repair.
► Interactions between components of SCC and polymer modified concrete were studied.
► Polymers decreases dose of water reducing admixtures and achieves good properties.
► Type of filler and chemical admixtures affect the mechanical properties of SCC.
► Polymer modified SCC had lower degree of hydration compared with traditional SCC.