Betone für biogenen Säureangriff im Landwirtschaftsbau

Concrete for Biogenic Acid Attack in Agricultural Constructions

Up to present, surface protective systems are in use for agricultural buildings, for instance: cot plants, tank construction, silo plants or even biogas fermenter. The aim is to avoid infiltration by concrete- and steel corrosion agents. Concrete with high acid resistance are an alternative to dispense using these surface protective systems. The performance of this special-concrete has to be verified in aggressive media through accelerated storagetests, in accordance with the potential of damage of the equivalent application.
Based on the young history of development and the absent access to the buildings, none extensive experiences of the processes of damage are noted for the increasing number of biogas plants. Dependant on the used plant-process engineering, a less biogenic acid attack within the liquid state can be expected. Within the gaseous phase under special conditions i.a. sulfuric acid-, carbonic acid attack and carbonation can simultaneously occur. Currently, in the context of the large-scale research project at the MFPA Leipzig GmbH/Leipzig University, the potentials of damage within biogas plants on damaged buildings as well as embedded samples become analyzed. At the same time new acid resistance concretes, i.a. for agricultural buildings will be developed by accelerated storage-tests.