Soil Stabilization

The Role of Polyurethane Injection Resins in Soil Stabilization

Soil stabilization is a critical process for the success of construction and infrastructure projects. Poor soil structure can lead to structural damage, subsidence and water infiltration. PURINSEAL polyurethane injection resins used to minimize such risks have low viscosity and effectively fill voids in the soil, increasing the durability of the ground. Designed specifically for waterproofing, these systems extend the life of both existing structures and new construction projects. With PURIN’s innovative solutions, you can achieve maximum efficiency in soil stabilization.

Soil Reinforcement Techniques in Construction and Infrastructure Projects

Soil reinforcement is one of the key steps in ensuring structural safety in major construction projects. Inadequate soil stabilization can lead to structural problems and costly repairs over time. PURINSEAL EN 402 and EN 403 products are two-component polyurethane injection systems developed specifically for filling low and high volume voids. These products accelerate ground improvement works on construction sites and improve the quality of projects with their waterproofing performance. PURIN products help you create long-lasting and safe structures in the construction industry.

Polyurethane Injection Resins in Soil Stabilization

Polyurethane Solutions for Waterproofing and Ground Reinforcement

Soil stabilization is not only limited to strengthening the soil structure; waterproofing is also critical. PURINSEAL polyurethane injection resins not only fill gaps in the soil, but also prevent water from seeping into building foundations. In this way, you can increase the long-term durability of your structures and prevent water damage. Especially in areas with high groundwater levels, PURIN products offer an effective waterproofing and ground reinforcement solution. You can choose PURIN’s superior polyurethane solutions for the durability and safety of your buildings.

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Application Areas

Strengthening the soils under construction foundations.
Increasing the durability of tall buildings and bridges.
Ground stabilization in large infrastructure projects such as roads, bridges and tunnels.
Reinforcement of soils under railway lines and highways.
Ground stabilization in areas where heavy machinery will be placed.
Ground improvement in storage areas.
Providing waterproofing in areas with high underground water levels.
Ground reinforcement in building foundations that require waterproofing.
Strengthening the foundations of old and historical buildings.
Restoration of historical buildings by preserving their original structure.
Ground stabilization in mines and underground structures.
Stabilizing the ground in tunnel excavations and shaft constructions.

Polyurethane Resin Injection (PU Injection)

Advantages

Polyurethane injection resins shorten the duration of projects and reduce costs with their fast applicability.
Provides high durability and long life in the applied areas, which extends the life of the structures.
Excellent resistance to water, thus increasing the water tightness of structures.
Provides structural integrity by effectively filling large and small gaps in floors.
Polyurethane materials have ingredients that are not harmful to the environment, which ensures environmental sustainability.
It can be used both in new construction projects and in the reinforcement of existing structures.
They provide flexibility against ground movements, which increases resistance to earthquakes and other natural disasters.

Product	Viscosity (cP,23ºC)	Mixing Rate	Structure	Starting of Reaction	Ending of Reaction	TDS
PURINSEAL EN 402	400	1:1	Forms a water-tight, rigid elastomeric gasket (70 shore D)	20 sec	40 sec	PDF Turkish English Deutsch
PURINSEAL EN 403	300	1:1	Forms a rigid foam in anhydrous environment	10 sec	80 sec	PDF Turkish English Deutsch

At this application, two component polyurethane injection products are preferred. One component products need water to react. One component products cannot be used as there is not water in every area where ground stabilization is conducted. Two component products fill in the voids in short time by quick reaction and ensure ground stabilization.

PURINSEAL EN 402: This two component low viscosity product is used to fill in the low volume voids or cracks. When contacts with water it forms little foam. It is applied with two component injection machine. However, according to the demands, it can also be applied with one component injection machines by expanding pot life.

PURINSEAL EN 403: This two component low viscosity product is used to fill high volume voids occur on the ground. When the two components are mixed, it forms foam by reacting without any need of water. Preferring this product in high volume voids provides a cost advantage. It is applied with two component injection machine.