July 19-21, 2021, Henan's extraordinarily heavy rainfall to Henan's engineering quality to a big test, the results show that many technical quality did not pass.

Such as.

1. the roadbed was soaked leading to the collapse of the road sinking (because the road standard on the water-stable layer does not have the index requirements of water immersion resistance)

2. road slope is washed out seriously (slope impermeability is not enough)

3. River embankment washed away (river embankment is not impermeable)

4. Underground pipeline cracking and leakage (the attached soil around the pipeline sinks due to rainwater soaking, resulting in cracking and leakage of the pipeline under pressure)

5. Leakage of underground garage floor floating (water seeped into the bottom of raft slab from fat tank, resulting in leakage of raft slab floating)

6. serious roof leakage (the reliability of roofing membrane waterproofing is too low)

Some people shake off the pot and say that this is a thousand years of big again, people up irresistible. But according to global climate change, the melting of the Earth's glaciers, the relevant meteorological experts predict that future extreme weather will become more frequent, heavy rainfall will become the norm.

The original standard specification will not be able to adapt to the future changes in working conditions, should do the corresponding upgrade.

As a high-tech research and development company with international background, Zhengzhou Sano has developed a series of technologies that can still achieve good results under extreme and harsh conditions by adopting the concept of redundant and reliable sealing, especially in the protection of concrete and steel structures, especially in the field of concrete, which has precipitated a series of problem-solving oriented high and new technologies that can create great value for customers: 1.

1. Backwater spraying technology: Especially for the leakage of underground space of existing buildings, the problem of water leakage can be easily solved by using this "backwater spraying", i.e. by spraying easily on the backwater surface. It sounds unbelievable, but this technology has been verified by tens of thousands of projects over the past 13 years and has been highly evaluated by the project managers of our clients (China Railway, China Construction, China Metallurgy, China Water, China Communications, CNPC, CNOOC, Petrochemical, etc.).

2. impermeable P30 wise concrete self-waterproofing technology: the core of this technology is a cement exciter RD-K, a liquid, the exciter is added to ordinary concrete, ordinary concrete mixing, impermeability will be enhanced from P6 to P30, and at the same time has the performance of automatic crack closure, greatly improving the reliability and durability of engineering seal waterproofing

Has the following performance advantages.

Elimination of water stopping steel plate

Elimination of external flexible waterproofing

Elimination of root penetration resistant membrane

Elimination of protective layer

Work with water

Extend concrete life

Reduce construction time

Inclusion of other process failures

Has automatic crack closure

Good durability

Reduces total cost of construction

Reduces post maintenance costs

Maintain goodwill

3. Soil rock forming agent