Thanakorn Pheeraphan Name: Mohammad Abdus Saker ID: st122611 Still the strength regain capability needs to be further improved for field study to achieve 50% strength recover by self-healing. After 28 days of self-healing, the sealed beam flexural strength subjected to second time bending was enhanced about average 14o/o strength recovery rate. subtilis M9, self-healing concrete was produced with flexural strength of 4.2MPa according to 3-point-bending test. The indepth healing remains a challenge for the future researchers. ![]() Ca(OH)2 solution to elevated Production of Self Healing Concrete Adding Bacteria Freeze Dried Powder to Liquid Culture Fracture Crack by 3-Point bending Test Crack-healingIncubation Flexural Strength Recover Evaluation Although maximum 0.3mm-width crack gap can be sealed with calcite precipitation in 28days, the heal rate dropped dramatically with crack depth increasing. Luria Bertani (LB) medium, which was adjusted by 5. Calcium Concentration, 2.Concentration of dissolved inorganic carbon 3. Suitable bacteria acting as a healing agent is the key 2. Strength decrease due to porous healing agent carrier. Performance of S.H.C Bio-mineralization Efficiency and lmbolization of Healing Agent Drawbacks of S.H.C Bio-mineralization With Ureolysis Break down of urea into ammonia and carbon dioxide which is environmental unfriendly. Summary of Self-Healing Concrete Preparation Introduction Preparation & Production Crack Seal Evaluaion Conclusion Drawback of Concrete Concrete can crack and when it cracks, it can cause corrosion of rebar, maintenance is required.
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