Waterproofing in Industrial Plants

Industrial Plants - Solutions for structures exposed to a demanding environment

Various systems are available to protect and waterproof concrete structures. Choosing the right system can have an enormous effect on the time required for conducting maintenance and the frequency with which it needs to be carried out. Abrasion, cracks and chemical attacks reduce the service life of concrete structures and increase the frequency of maintenance and repair cycles. As we already know, concrete damage is extremely costly and can even take a facility out of action entirely. For these reasons, choosing the right waterproofing coating for concrete structures is essential. Making the right decision greatly reduces the need for maintenance and avoids the risks of unplanned downtime. Long term performance also depends on the performance features of the solution like crack bridging ability, high mechanical resistance and substrate adhesion along with the product application features of moisture tolerance, cure time and non-sagging on vertical surfaces.

Biogas digesters and anaerobic digestion

Mechanical and chemical stress impact and leave their mark on the concrete structures and tanks of biogas plants challenging the smooth running of the operation. Biogas is produced from various biomass sources through biochemical processes such as anaerobic digestion. The liquid biomass and the gas that are processed in the biogas digester can be extremely aggressive to concrete. Among the many chemicals is a high concentration of organic acids and hydrogen sulfide. In these aggressive environments for the concrete structure to perform its function and for it to be safe, choosing the right waterproofing and concrete protection solution is a crucial prerequisite.

Factors to consider choosing the right waterproofing solution for biogas digesters

• Chemical resistance
• Elastic or crack-bridging characteristics
• Adhesion to concrete
• Temperature resistance
• Impermeability to CO2 and to CH4
• Gas impermeability against methane (leakages…)
• Water tightness against + and – pressure
• Mechanical resistance

Our waterproofing membrane MasterSeal 7000 CR has been specifically designed to address such extreme industrial conditions. MasterSeal 7000 CR is highly resistant to abrasion and biogenic sulfuric acid corrosion and is ideal to withstand the severe conditions that are present in biogas digesters. Its dynamic and static crack-bridging abilities protect concrete structures from cracks prolonging the structure service life. MasterSeal 7000 CR is a unique and reliable solution for both new-build or repair projects. It is not only ideal for use in biogas tanks but also for waterproofing and protecting feedstock storage areas.

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Waterproofing of secondary containment structures

The protection of environmental containment and retention basins is often governed by legally prescribed measures with aim of reliably preventing hazardous waste or chemicals from leaking tanks entering the environment. The basins are usually made of concrete and must guarantee the highest sealing security. Even the smallest leak can have serious consequences for humans and the environment. For this reason, it is even more important to regularly check the surfaces of these basins for their sealing function and to repair them immediately. But this is precisely what makes the matter complicated because the choice of surface treatment depends on the construction of the basin, its intended use, the respective chemical substances and the regulations of the legislator. In addition, unfavorable climatic conditions can delay structural restoration work and cause additional costs.

Factors to consider choosing a chemical-resistant solution for waterproofing secondary containment structures

• Crack-bridging: With high chemical resistance, crack bridging capabilities generally decrease. Nevertheless, our membranes combine high chemical resistance with elasticity that prevents leakages from substrate movement.
• Temperature resistance: Potential maximum spill temperature must be determined for the optimal selection of the lining.
• Traffic requirements: Different solutions are available to meet the needs of different types and levels of traffic.
• Application method: The type of substrate, access to the site and other details will all influence whether spray or hand application is the best method.
• Chemical resistance: To ensure optimum protection, the chosen system needs to offer maximum resistance against the substances you plan to store for at least 72 hours. Nevertheless, a longer durability of the membrane in contact with the chemicals reduces the need of repairs in case of occasional spillages.

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Waterproofing onshore and land-based fish farming concrete tanks

Understanding the fish farming business is important to be able to provide the right solution. Our experts are familiar with the high hygiene and quality standards for surfaces in the food sector, as well as the stresses caused by mechanical, climatic or chemical influences. The demands of the fish farm industry are extreme, and the many requirements together must create a natural environment for the cultivation of healthy fish. Our certified waterproofing solution for concrete fish farm tanks ensures first and foremost safe and efficient operations by waterproofing and protecting the concrete structures against leaks and degradation. The spray-applied polyurea waterproofing system MasterSeal 689 creating a seamless and smooth surface which does not damage or hurt the fish. The surface is also certified for contact with drinking water ensuring that it does not contaminate the water.

Our range of durable, proven and certified solutions also covers solutions for roofs and functional floors, loading areas and other parts of the industrial plant. Our waterproofing and protective systems keeps professionals on the safe side: Unnecessary risks are avoided, downtimes are minimized, and the highest requirements are fulfilled.

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