Workability Test Methods for Concrete
The workability test methods for concrete presented in this document cover a broad range of workability, from extremely dry roller-compacted […]
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.
The workability test methods for concrete presented in this document cover a broad range of workability, from extremely dry roller-compacted […]
Self-compacting concrete (also self-leveling, super workable, or self-consolidating concrete) presents new challenges for the measurement of workability. Since self-compacting concrete
Workability Test Methods for Self-Compacting Concrete Read Post »
The Wuerpel device (Maultzsch 1990) measures the consistency of mortars by applying a shear force to a mortar specimen and
The LCL flow test (Bartos 1992; Ferraris 1999; Bartos, Sonebi and Tamimi 2002) is very similar to the Angles flow
The wet sieving stability test (EFNARC 2002; Bartos, Sonebi, and Tamimi 2002) was developed by a French contractor to measure
Wet Sieving Stability Test (GTM Screen Stability Test) Read Post »
The ViscoCorder is a single-point device used in Germany to measure the consistency of fresh mortar. Banfill (1990) modified the
The Vibropenetrator was developed by Komlos (1964) as a penetration test to measure the behavior of vibrated concrete. The device
The setting time of concrete, mortar, or paste can be measured as an indication of workability (Ferraris 1999). One of
The vibratory flow meter (Szecsy 1997) was developed to measure the flow of concrete under simulated field conditions. The test