Experimental Study on Self-Healing Capability of FRCC Using Different Types of Synthetic Fibers

To repair concrete cracks in difficult or dangerous conditions such as underground structures or hazardous liquid containers, self healing mechanism is a promising alternative method. This research aims to imitate the bone self healing process by putting porous concrete internally in the concrete structure to create a porous network similar to ‘spongious bone’. When cracks are formed and detected by sensors, healing agent can be infused into the porous network so as to fill up voids and seal a crack or cracks in the concrete body. This idea was tested using cylindrical and beam samples. A porous concrete core was placed in the concrete specimens. Uniaxial tensile load in the case of the cylindrical samples and bending load in case of beams was applied to create cracks. A healing action was performed by injecting healing agent manually. The results show that a macro-crack is sealed and strength of concrete is regained. Therefore, the concept is considered as to be feasible for self repair mechanism in concrete.

[1]  C. Joseph,et al.  Self‐Healing Processes in Concrete , 2009 .

[2]  Nele De Belie,et al.  Bacterial carbonate precipitation improves the durability of cementitious materials , 2008 .

[3]  Patric Jacobs,et al.  Self-healing efficiency of cementitious materials containing tubular capsules filled with healing agent , 2011 .

[4]  Toshiharu Kishi,et al.  Crack Self-healing Behavior of Cementitious Composites Incorporating Various Mineral Admixtures , 2010 .

[5]  S. Bang,et al.  Calcite precipitation induced by polyurethane-immobilized Bacillus pasteurii. , 2001, Enzyme and microbial technology.

[6]  Carolyn M. Dry,et al.  Three designs for the internal release of sealants, adhesives, and waterproofing chemicals into concrete to reduce permeability , 2000 .

[7]  T. Robl,et al.  Pervious Concrete: Compaction and Aggregate Gradation , 2009 .

[8]  Shree K. Nayar,et al.  Shape from Focus , 1994, IEEE Trans. Pattern Anal. Mach. Intell..

[9]  C. Joseph,et al.  Experimental and numerical study of the fracture and self-healing of cementitious materials , 2008 .

[10]  E. Dalas,et al.  The effect of aminoacids on the crystal growth of calcium carbonate , 2002 .

[11]  Jing Yang,et al.  Experimental study on properties of pervious concrete pavement materials , 2003 .

[12]  Mohammed Sonebi,et al.  Medium strength self-compacting concrete containing fly ash: Modelling using factorial experimental plans , 2004 .

[13]  Camille A. Issa,et al.  Experimental study of epoxy repairing of cracks in concrete , 2007 .

[14]  G. Muyzer,et al.  Application of bacteria as self-healing agent for the development of sustainable concrete , 2010 .

[15]  E. M. Balbás.  Optical techniques for the study of living tissue , 2010 .

[16]  Tomoya Nishiwaki,et al.  Development of Self-Healing System for Concrete with Selective Heating around Crack , 2006 .

[17]  Aaron R. Sakulich,et al.  Self-Healing Characterization of Engineered Cementitious Composite Materials , 2010 .

[18]  H. Reinhardt,et al.  Permeability and self-healing of cracked concrete as a function of temperature and crack width , 2003 .

[19]  Adam Neville,et al.  Autogenous Healing—A Concrete Miracle? , 2002 .

[20]  LATTICE MODELLING OF AUTONOMIC HEALING PROCESSES IN CEMENTITIOUS MATERIALS , 2008 .

[21]  Shunzhi Qian,et al.  Self-healing behavior of strain hardening cementitious composites incorporating local waste materials , 2009 .

[22]  S. Granger,et al.  Self healing of cracks in concrete: from a model material to usual concretes , 2006 .

[23]  Henk M. Jonkers,et al.  Quantification of crack-healing in novel bacteria-based self-healing concrete , 2011 .

[24]  Stephen,et al.  Self : . healing Materials Fundamentals , Design Strategies , and Applications , 2008 .

[25]  Yun Mook Lim,et al.  Feasibility study of a passive smart self-healing cementitious composite , 1998 .

[26]  K. Van Breugel,et al.  IS THERE A MARKET FOR SELF-HEALING CEMENT- BASED MATERIALS? , 2007 .

[27]  Tomoya Nishiwaki,et al.  Self-Healing Capability of Fiber Reinforced Cementitious Composites , 2011 .

[28]  Jeffrey S. Moore,et al.  Self-Healing Polymers and Composites , 2010 .

[29]  Carola Edvardsen,et al.  Water Permeability and Autogenous Healing of Cracks in Concrete , 1999 .

[30]  Hirozo Mihashi,et al.  Corrosion of Reinforcing Steel in Fiber Reinforced Cementitious Composites , 2011 .

[31]  Christopher K.Y. Leung,et al.  Fiber optic sensors in concrete: the future? , 2001 .

[32]  I H Kalfas,et al.  Principles of bone healing. , 2001, Neurosurgical focus.

[33]  de Jeff Hosson,et al.  Self Healing Materials. An Alternative Approach to 20 Centuries of Materials Science , 2007 .