04.03 2026

Strengthening a brick foundation using Georesin technology

Brick isn’t exactly a “relevant” foundation material today. It’s been replaced by concrete in most areas, but it still has its niche uses. Brick foundations are still used today for wooden houses, summer cottages, and outbuildings like sheds, garages, and gazebos. For small, single-story buildings, such a foundation is easier and less expensive to construct. It bears little load, and it performs its intended function.

Furthermore, there are a huge number of existing buildings—from historic buildings to low-rise Stalin-era buildings and private homes.

During use, structural damage can occur for a variety of reasons, requiring reinforcement of the brick foundation.

Why did the brick foundation crack?

The root causes of damage are the same as for concrete foundations: uneven settlement of the supporting soils, soil flooding and rising groundwater levels, associated man-made vibrations, and increased loads.

The actual symptoms of problems with brick foundations are quite different.

What is the difference between cracks in a brick foundation and a concrete one?

For example, consider the behavior of a brick foundation with uneven settlement of the supporting soil. Unlike vertical and diagonal linear cracks in a concrete foundation, a brick foundation will crack primarily along the weakest point—the masonry joint, meaning the crack will be “stepped.” Cracks in the brick itself appear with more severe, uneven soil settlement over time.

Further foundation deterioration also differs. In concrete, cracks will widen, while in a brick foundation, cracks will spread across the masonry.

If the foundation waterproofing was poorly performed, the masonry joints also become a weak point. They become waterlogged, weakening the entire structure as they become wet more quickly. A concrete foundation also suffers from water damage and loses its load-bearing capacity as it becomes wet throughout the entire structure and crumbles.

How to strengthen the foundation of a brick house?

The right solution is to address the root causes. Depending on the cause, you need to:

Stabilize the foundation from further subsidence

Unlike traditional soil cementation, Georesin polymer resins alter soil properties at a deeper level. They don’t simply fill existing cavities, but penetrate the structure of capillaries and soil cracks, tightly bonding with the soil through a chemical reaction to form a new, durable structure impervious to adverse factors.

Raise the level of subsided soil

Yes, this is technically feasible without digging up the foundation or costly excavation work, which could threaten the building’s destruction. By injecting a calculated amount of Georesin polymer material into the foundation soil, the volume can be increased by precise calculations. This can be achieved through controlled, high-precision lifting using DEEP LIFTING technology.

Prevent water from reaching the foundation

We previously discussed in detail how geopolymers are used to create water barriers in the soil in the article “Water Infiltration Under Control. Water Barriers for Shorelines and Excavations.” Even if a house is located near a river or lake, it’s possible to prevent the soil around the foundation from becoming saturated with water. After conducting the necessary engineering surveys, our specialists can create a water barrier with hydrophobic properties.

Even if the shoreline is crumbling, this process is reversible, and the situation can be stabilized with a guarantee of long-term durability.

Eliminate the impact of vibrations on the structure

We previously wrote about how our injection technologies help eliminate vibration transmission to structures in the article “GeoResin Injection and Vibration Protection of Structural Foundations: Science, Practice, and the Future.” To summarize, if ground movement is caused by man-made vibrations, geopolymers are effective in mitigating this.