The Effect of Composite Cement (ECC) as A High Performance Fiber Reinforced Composite Cement

Abstract

Composite Cement (ECC) addresses a special type of high performance fiber reinforced composite cement with high tensile ductility. Fibers have been used to increase the toughness of quasi-brittle cement-based materials. As a result of its ability to produce high tensile ductility, ECC originally designed its strain-hardening behavior using a micromechanical concept, so that over-tensile strain capacity could be achieved in excess of 2% through multiple cracks. This research method is carried out by means of laboratory testing in accordance with data from literature studies both Indonesian SK SNI Standards and foreign standards, namely ASTM. The method applied in this research is an experimental method. The independent variable in this study is the reinforcement with the addition of fiber to the PVA ECC material mix, while the dependent variable in this study is the compressive strength value and the magnitude of the elastic modulus of the PVA ECC material. The results of the tensile strength of the ECC PVA material obtained on average at the age of 7, 14 and 28 days were 3.108 MPa, 3.547 MPa and 4.34 MPa, respectively. The tensile strength of the ECC PVA material increases with age. The average modulus of elasticity of PVA ECC material obtained at the age of 7, 14 and 28 days was 18763.02 MPa, 20788.81 MPa and 21060.03 MPa, respectively. Based on the modulus of elasticity, it also increases with the increase in compressive strength.