A study on the hydration properties of high performance slag concrete analyzed by SRA

• Published in: Cement and concrete research Vol. 33; no. 2; pp. 183 - 189
• Main Authors: Chang, Ping-Kun, Hou, Wei-Ming
• Format: Journal Article
• Language: English
• Published: New York, NY Elsevier Ltd 01.02.2003; Elsevier Science
• Subjects: Applied sciences; ATOMIC FORCE MICROSCOPY; Buildings. Public works; CONCRETES; Concretes. Mortars. Grouts; Exact sciences and technology; General (composition, classification, performance, standards, patents, etc.); High performance concrete; HYDRATION; Materials; MATERIALS SCIENCE; Other special applications (sand concrete, roller compacted concrete, heavy concrete, architectural concrete, etc.); Pozzolanic reaction; SYNCHROTRON RADIATION; Water to binder ratio; High performance concrete; Pozzolanic reaction; Water to binder ratio; Synchrotron radiation; Water cement ratio; Hydration; Slag; Experimental study; Concrete age; High strength concrete
• ISSN: 0008-8846; 1873-3948
• DOI: 10.1016/S0008-8846(02)01005-0

The synchrotron radiation accelerator (SRA) was used to analyze the hydration properties of high performance slag concrete in this study. The results show that, as the water to binder ratio increases, the speed of hydration of alite and C 3A increase, as do the formation rates of CH and ettringite (AFt). Also, if the content of slag produces pozzolanic reaction, then the formation rate of CH will decrease, especially when the age increases. In short, the structures of CH, AFt and AFm can be analyzed both qualitatively and quantitatively by SRA.