WATERPROOFING OF THE STRUCTURES


Modern-day structures are indeed more complicated than the earlier ones, which were constructed, say 20-25 years ago. Earlier, a mere conventional waterproofing treatment of terrace, toilet, bath, sinks and an old basement needed the waterproofing job. However, these days the structures are high-rise, they have large podium, car-parking lots, basements, terrace garden at each duplex flat level, corporate office gardens, flowerbeds, swimming pools at various levels, narrow ducts (Chowks) for plumbing lines and electrical lines besides conventional...

OPTIONS AVAILABLE FOR WATERPROOFING (PART 4)

Various permutations and combinations in specifications can avoid such problems, for example, the following alternatives can be considered:

1.Give a water impermeable coating on the finished surface of IPS – Though this method can prove effective on a short-term basis, may create problems subsequently. It is observed that the coatings based on pure solvent-based polymers, though effective do not function for a larger duration due to its requirement for a thoroughly clean and dry surface. From...

KEEPING INDIA’S BOOMING IT INDUSTRY WATERPROOF - CASE STUDY I
1.Edelweiss/IBM

DESCRIPTION OF THE PROBLEM:

In 2008 Edelweiss, one of India’s leading financial service companies struck the highest deal in real estate by purchasing a 3 basement, G + 14 stored RCC building for approximately 250 crores with a built-up area of 2 lakh sq. ft. to house their corporate office. As part of their IT infrastructure, this building was also going to house Edelweiss’s main server room, battery room, electrical room, and...

WATERPROOFING OF STRUCTURES: CHALLENGES AND SOLUTIONS
Al Yaqoub Tower is a tall building in Dubai, United Arab Emirates. The tower reached its peak in 2010 and was completed in 2013.

Problem: To avoid seepage from wet areas and make structures durable.
Application: Waterproofing by crystallization.
Conclusion: We have suggested waterproofing by crystallization. It is an economical waterproofing system in the form of dry powder. When applied it becomes an integral part of concrete, so cannot puncture or tear. The system is durable and lasts as long as the concrete.


Location: Sheikh Zayed Road, Dubai, UAE
Client : Al Yaquob Group
Material consultant - Sunanda Speciality Coatings Pvt Ltd.
Email - info@sunandaglobal.com
Website - www.sunandaglobal.com

MECHANISM OF WATERPROOFING
Mechanism of Waterproofing by Proper Cement Hydration


One of the products of hydration of cement is cementgel or Tobermorite, which is formed upto water cement ratio 0.65 to 0.7. At lower w/c ratio, it is formed more and more and vice versa. This hydration product has absolutely least co-efficient of permeability, i.e., 7x10-14 cm/sec and by itself blocks the pores and capillary in the concrete. This can result into good waterproof concrete of 10-10 to 10-12 cm/sec. However,...