In the concrete industry, concrete with a strength grade of C60 or higher is generally referred to as high-strength concrete, while concrete with a strength grade of C100 or higher is referred to as ultra high strength concrete; Concrete with a pumping height exceeding 200m is called super high-rise pumped concrete.
Super high-rise pumped concrete with high strength, ultra-high strength, and pumping height greater than 200m, due to its low water cement ratio, requires a large amount of total cementitious material in a single cubic meter of concrete, resulting in high concrete viscosity.
Therefore, the pumping pressure is high and the pumping construction is difficult, bringing a series of technical challenges to the entire construction pouring process.
This article provides some insights and experiences on solving the viscosity of high-strength and ultra high strength concrete for the vast number of concrete professionals, in order to entertain readers.
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