ABSTRACT

Three types of the same size of prism specimens were used in this research; plain concrete prism (PLA prism), reinforced concrete prism (RC2 prism), and porous network concrete (PNC prism). RC2 prism reinforced by one Ø2 mm rebar placed at the height of 10 mm from specimens’ bottom. To create porous network concrete, a porous concrete core was made and placed in the center interior of a solid concrete prism. The PNC prisms were intended for self healing mechanism testing. Both PLA and RC prisms were meant to be as reference

1 INTRODUCTION

1.1 The problems

Cracks due to inherent brittleness in concrete structures attract attention since its trigger more serious durability problem. In tackling this problem, researchers proposed self healing systems preferably with automatic or autonomous capability. Several healing mechanisms have been tried in concrete materials such as capsule based and vascular system. Many of them have shown potentials although some impracticality limited their application in real situation.