Compressive strength and durability of high performance concrete

Abstract

High Performance Concrete (HPC) has been developed for more than 20 years It has been studied for many years in the domestic industry and this research has successfully broken the lower water-to-binder ratio (W/B=0 21) In order to combine the characteristics of Engineered Cementitious Composites (ECC) and high-performance concrete this study used domestically produced materials to make cylindrical specimens The purpose of this study was to investigate the effect of adding high-concentration materials on the properties of high-performance concrete and to adjust the content of cement and hearth powder in the powder and to discuss the relationship between the properties of the material and mechanical properties and durability The experiment is divided into two parts The first part is the mechanical properties The compressive strength of the high-performance concrete is determined by different ratios of the materials The different curing ages (12 hours 1 day 3 days 7 days) are discussed 14 days 28 days 60 days 120 days 210 days) the development of concrete strength by compressive strength test; the second part is the measurement test of concrete surface resistivity to explore different ages of curing age (3 days 14 days 28 days 60 days 120 days 210 days) The strength and inferiority of concrete surface resistivity test on concrete durability is used to judge the mechanical properties and durability of high performance coagulation The results show that the compressive strength of HPC 1 and HPC 2 at 28 days of age exceeds 80 MPa; the surface resistivity of concrete at 60 days of age exceeds 20 kΩ-cm; the correlation coefficient between linear regression of compressive strength and surface resistivity R2 > 0 90 the two groups have a good correlation

Date of Award	2019
Original language	English
Supervisor	Chung-Chan Hung (Supervisor)