The Effects Of Local Aggregates On The Mechanical Properties Of Engineered Cementitious Composites Ecc

"Engineered Cementitous Composites (ECC) are a class of ultra-ductile fiber reinforced cementitious composites characterized by a strain hardening behavior and a high strain capacity when subjected to tensile loading. ECC integrates micromechanical models and fracture mechanics principles in the design concept which makes it an engineered material. These features promote ECC as a promising material for a wide range of applications which include repair of structures, and resistance to seismic activity, impacts, and blasts. However the high initial cost of the material which is three times the cost of conventional concrete hinders the widespread use of ECC. Also, the high carbon footprint and the high cement volume can be a potential problem for the environment. Therefore this research sought to reduce the cement volume by producing ECC with aggregates and producing it at an Aggregate to Binder ratio of 0.8. This means the new non-standard ECC has twice as much aggregate as can be found in standard ECC"--Abstract.