Innovation of Self-Healing Concrete wall panel / Nurul Syafina Adanan and Noor Azam Yahaya

Crack formation is a relatively typical event in concrete structures which enable penetration of water and various types of chemicals into the concrete and reduces its durability, strength, and affects the reinforcement when it comes into contact with water and other chemicals. Self-Healing Concrete (SHC) was introduced to solve the problems. Self-Healing Concrete is a concrete made from bacteria-derived calcite crystals created by Bacillus Subtilis (B.Subtilis) and Super Absorbent Polymers (SAPs), which can form limestone or calcium carbonate. Also, cracks problems of the IBS precast wall usually occur during the handling process especially during lifting, transporting, connecting for installation and concrete strengthening. The aim of this study is to investigate the potential for SHC wall panels for construction of IBS in Malaysia. Therefore, the objectives are to review the causes of cracks in current wall panel concrete products, propose a new innovative idea to enhance the performance of wall panel concrete products by using SHC and study the marketability and potential of SHC wall panels in the industry. The results of experiments show that Self-Healing Concrete has a good potential for crack remedy and application in the building industry.