8 . Damage caused by accidents

Concrete Spalling

Concrete spalling is one of the most common issues related to the natural deterioration of buildings in Hong Kong. Property owners should seek professional advice and assessment promptly upon initial discovery to prevent structural cracks that could lead to accidents or daily concerns. Understanding the possible causes of deficiencies and undertaking timely repair and maintenance work is crucial to maintaining the structural integrity and safety of the building.

Common causes include:

1 . Continuous water seepage into concrete leads to oxidation of the steel reinforcement

2 . Concrete aging leading to rust formation

3 . Steel reinforcement expands due to oxidation by water, causing concrete delamination and spalling

4 . Concrete mixed with saltwater

5 . Subsidence in the foundation

6 . Structural overload

7 . Partial structural weakness in buildings due to rusting or material aging

9 . Poor design or construction

Common warning signs include:

Product Selling Points

Penetrates effectively into the concrete to a depth of approximately 40mm

High
Permeability

Features seamless integration between new and old concrete, effectively repairing damaged concrete

Product Selling Points

Repair
Function

Moisture-proof, dust-proof, while also preventing the infiltration of oil, grease, and acidic substances

Barrier
Against
Infiltration

Product Selling Points

It fully dries and hardens into crystals within 21-28 days, effectively preventing water from seeping into cracks and accumulating beneath the surface

Quick
Drying

Product Selling Points

Derived from natural minerals, environmentally friendly, colorless, odorless, non-toxic, safe, and easy to use

Natural
Material

Product Selling Points

Short construction period with high cost-effectiveness

Short
Construction
Period

Product Selling Points