Introduction

Leaks in building structures can lead to serious damage, such as corrosion of reinforcement, weakening of the load-bearing capacity of the structure, or the development of mold and fungi. An effective method for eliminating them is pressure injection, which allows for precise sealing of cracks, voids, and leaks in concrete, masonry, and other building materials.

What is pressure injection?

Pressure injection is a process that involves introducing special sealing preparations into the structure of the building material under a specific pressure. The substance fills cracks and pores, sealing the structure and increasing its durability.

This technology is used in repairs of:

• foundations,
• basement walls,
• water tanks,
• tunnels,
• underground parking lots,
• bridge structures.

Types of materials used in injection

1. Polyurethane resins

✔ Ideal for sealing cracks in concrete structures.
✔ Can be single or two-component.
✔ Expand in the presence of moisture, effectively blocking water flow.

2. Epoxy resins

✔ Used for reinforcing structures and connecting elements.
✔ Characterized by high mechanical strength.
✔ Not suitable for sealing active leaks.

3. Acrylic gels

✔ Have a liquid consistency, allowing penetration of the smallest gaps.
✔ High flexibility and resistance to aging.
✔ Used in structures exposed to ground movements.

4. Cement micro-suspensions

✔ Mainly used in structural injections, e.g., for reinforcing walls and foundations.
✔ Resistant to water and salt.

Stages of performing pressure injection

1. Assessment of damage and surface preparation

🔹 Locating leaks and determining their cause.
🔹 Cleaning the surface and removing loose concrete fragments.

2. Drilling injection holes

🔹 Holes are made at an appropriate angle, usually every 15–30 cm.
🔹 Their depth depends on the thickness of the structure.

3. Installation of the injection packer

🔹 Packers are special injection plugs through which the sealing material is injected.
🔹 They are secured in the prepared holes.

4. Injection of the sealing agent

🔹 The injection takes place under appropriate pressure.
🔹 The material fills cracks and voids, eliminating leaks.

5. Control and completion of work

🔹 After the substance has hardened, the packers are removed.
🔹 The holes are filled with cement mortar, and the surface is smoothed.

Advantages of pressure injection

✅ Effectiveness – precise sealing of even the smallest cracks.
✅ Speed – the method does not require prolonged repair work.
✅ Seamless sealing – no need for additional insulation layers.
✅ Minimal interference in the structure of the building – does not require digging up foundations or demolitions.
✅ Durability – high resistance to atmospheric, chemical, and mechanical factors.

Summary

Pressure injection is a modern and effective method for sealing leaks in concrete and masonry structures. With a wide range of materials, this technology is used in many construction sectors, allowing for quick and lasting elimination of water problems.

If you have a leak problem, it is worth using the services of specialists in pressure injection to ensure long-lasting protection for your structure.

We operate throughout Poland:
Warsaw - Łódź - Malbork - Gdańsk - Gdynia - Sopot - Słupsk - Elbląg - Tczew - Pruszcz Gdański - Nowy Dwór Gdański - Poznań - Olsztyn - Ostróda - Giżycko - Białystok - Bydgoszcz - Toruń - Iława - Chojnice - Grudziądz - Płock - Szczecin - Koszalin - Kołobrzeg - Ustka - Szczecinek

Contact:
 

+48 537 945 135

biuro@waterprus.pl

Waterprus Sp. z o.o.

ul. Ogińskiego 11 lok. 9, 03-318

Warsaw

KRS: 0001202219

NIP: 524-305-42-05