Considering concrete for your next storage tank project? Consider the facts...

EA Tanks
May 15, 2018
By EA Tanks
There is a great misconception within the global marketplace about the durability, service life cost and capacity capability of bolted steel tanks when compared to both sectional and pre-cast concrete tanks for applications within the water, wastewater, and anaerobic digestion market sectors.

When correctly specified and produced, concrete can be an excellent construction material providing long service in many conditions, however, the quality and durability of a concrete tank is dependent on many factors that are often difficult to control.

Consider the following:
Pre-stressed concrete tanks:
  • Bioenergy plants provide a severe environment for concrete. As these tanks enter the first, second and third decade of service, the effects of years of unprotected exposure are apparent with cracks, spalls, and leaks.
  • The introduction of reinforcing steel created a problem affecting the durability of concrete. As rebar corrodes, concrete cracks and spalls reducing structural integrity AND allowing elements to enter into the concrete increasing the deterioration. Additionally, rust forming on rebar increases the volume (result = expansion) of the steel creating large tensile forces. Concrete cannot withstand tensile stress and it cracks to relieve the pressures.
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