Recently, Guardex applied for "a waterproof maintenance structure for the leakage of old building wall" utility model patent approved by the State Intellectual Property Office, authorized, patent number: ZL 2021 2 1342627.7.

The leakage and anti-alkali problem of the old building wall is a very common phenomenon, concentrated in the top floor, toilet and other areas, this is because the old building wall is mostly concrete structure, aging, damage and other reasons will make more and more cracks, and then lead to frequent leakage, anti-alkali problems.

The usual maintenance practice is to remove the ineffective waterproof layer, and then do a layer of waterproof coil or waterproof coating, clean up the anti-alkali wall, and brush a layer of putty.

Traditional rolling material and waterproof coating service life is short, leakage anti-alkali problem will appear again, maintenance effort is not environmental protection, and the concrete wall is water infiltration damage, lack of effective repair, even if the outsourcing waterproof, the wall has formed water seepage channel, will still occur again.

This patent provides a waterproof maintenance structure for the leakage of old building walls, which greatly improves the reliability and durability of the waterproof system, and effectively solves the current situation of no targeted remedial measures for concrete walls in old residential areas.

The waterproof maintenance structure is equipped with SK 2 nano silicon ion immersion qualitative agent layer, retarded water non-leakage layer, PVA fiber layer, two-component high strength polymer mortar layer and waterproof and anti-proof putty layer.‑

‑SK 2 nano silicon ion immersion modifying agent and the concrete internal calcium ion reaction, forming crystals closed the internal cracks and pores, truncate the water seepage channel, solve the concrete water seepage problem and consume the calcium ion inside the concrete, from the source to solve the anti-alkali problem;

The combination of slow water leakage and PVA fiber greatly improves the water leakage cracking resistance, and can effectively play a long-term waterproof effect; double component polymer mortar permeability, as a rigid waterproof layer above, waterproof layer while protecting the wall; waterproof and mildew-resistant, can be used as decorative layer, avoid the trouble of decoration.

This patent for the old building wall back water waterproof, reinforcement repair complex and short period of validity, puts forward a new waterproof maintenance structure, using the combination between rigid and soft, mutual combination, solve the problem from the source, greatly improve the reliability and durability of waterproof system, simple structure, convenient construction, inorganic environmental protection, has good practical value.

Up to now, Guardex has applied for more than 80 + patents and 39 invention patents, 5 of which have been authorized and 42 utility model patents (37 have been authorized).In the future, It will pay more attention to scientific and technological innovation, so as to realize the transformation of more new technologies, new materials and new processes, and boost the development of the industry to a new level.