CEMAGREF-IMG
The CEMAGREF-IMG (Ferraris and Brower 2001) is a large coaxial-cylinders rheometer originally developed to measure mud-flow rheology, but which has […]
Concrete Workability
Since the early 20th century, the concrete industry has recognized the need to monitor concrete workability to ensure that concrete can be properly placed and can achieve adequate hardened strength. A myriad of test procedures for determining workability have been developed for research, mix proportioning, and field use. The vast majority of these test methods have never found any use beyond one or two initial studies. With the exception of the widely used slump test, the few methods that have been studied extensively have generally failed to gain widespread acceptance. Even with the increase in knowledge of concrete rheology, the slump test remains the predominately used test method for measuring concrete workability.
BTRHEOM Rheometer
Developed in France, the BTRHEOM rheometer (de Lerrard et al. 1997; de Lerrard 1999; Wong et al. 2000; Ferraris and
BML Viscometer
The BML viscometer (Gjorv 1998; Ferraris and Brower 2001; Bartos, Sonebi, and Tamimi 2002) is a coaxial cylinders rheometer that
Bertta Apparatus
The Bertta apparatus (Leivo 1990; Ferraris 1999) is a coaxial cylinders rheometer that measures the fundamental rheological parameters of concrete
Angles Flow Box Test
The Angles flow box test (Scanlon 1994; Wong et al. 2000) attempts to simulate typical concrete construction in order to