| Title |
A Fundamental Study on the Workability Improvement and Strength Properties Superplasticized Concrete |
| Abstract |
The effect of superplasticzing agents on the workability performance in fresh concrete and physical properties in hardened concrete have been analyzed and investigated under various mix proportions of water cement retio of 0.40, 0.50, 0.60 and 0.70, superplasticizing agents of NL-400 and Rheobuild-716, and addition rate of superplasticzing agents of 0.0, 0.5, 1.0 and 2.0 in the practical range.After that it is the aim of this study to provide the fundamental data on the fluidity performance, workability improvement and strength properties of superplasticized concrete such as time-dependent change of slump, flow value and compacting factor, air content, bleeding, mixing temperature, setting rete of fresh concrete, and compressive strength, dynamic and static modulus of elasticity, stress and strain curve of hardened concrete comparing with base concrete and conventional concreto for the practical use and research data accumulation of superplasticized concrete in the side of development of concrete construction technology and management. |