EFFECTIVE BASEMENT WATERPROOFING TECHNOLOGY WITHOUT USING A DRAINAGE SYSTEM
Many research documents in the world confirm: It is impossible to waterproof basements. The solution instead is to set up a drainage system system: trenches + pumps + cover walls + dehumidifiers, ... and maintain this complicated and expensive system throughout the entire life of the construction.
Some practical example:
1. Technical pit at Ford Vietnam Car Factory (Hai Duong) - failed to be waterproofed for over 2 years.
2. Ho Chi Minh Metro tunnel - using Japanese construction technology with drainages + pumps + cover walls (no attempt to stop the water)
3. Gigamall shopping mall - 4 foreign waterproofing products were tried, but none could stop water from leaking and permeating in.
4. Tresor apartment building (Ben Van Don street, District 4, HCMC) - failed to be waterproofed for over 3 years.
5. Basement at Vin. Dong Khoi shopping mall (Le Thanh Ton Street, District 1, HCMC) - failed to be waterproofed for 10 years, now using a drainage system.
6. 4 basement floors of BI. building (now belongs to Vin. Corporation) in Da Nang - failed to waterproof the last 3 years.
II. INTOC technology
1. Successful in negative-side waterproofing basements with high water pressure and with water permeating through a large area.
2. Many experts and prestigious customers have confirmed INTOC's effectiveness for over 20 years in multiple complex tasks such as tree-growing rooftop, high-rise swimming pool, basement without ditches, etc.
Video statement from experts and customers:
Letter from experts and customers:
3. The science: PASCAL’s Principle and the execution process:
The Pascal’s Principle states: P = F/A , therefore the following is true: F = P.A
(F is the force of the water leaking in, P is the water pressure based on depth,,A is the area affected).
This means at the same depth (constant P), water permeation or leaking can be either:
Conclusion: The difficulty of a waterproofing task does not depend solely on the depth of the basement.
How INTOC does it:
To put it simply, our waterproofing is cement-based, time is needed for the layers to harden.
1. Flatten the surface if too uneven, or roughen if too smooth.
2. Install tubes to focus the water permeation from large areas into jet stream in small openings.
3. Apply INTOC cement-based waterproofing around the tubes, where water is no longer permeating.
4. Wait 24 hours until these layers are harden and become effective , and remove the tubes.
6. Seal these openings where water is leaking out with cement-based sealant (this is not a waterproofing layer, it is just used to stop a constant flow of water) and apply the waterproofing layers.
6. Apply the final INTOC waterproofing on top.
III. Comparing advantages