Building Management Hawaii December/January 2014 - (Page 28)

Resin Injections Save Basement Challenges of waterproofing buildings below-grade and at sea level. By Richard Malmgren K Waterproofing eeping a two-story basement dry in Waikiki can be a challenge. Depending upon the daily tide level and specific location, the water table is often less than five feet deep; consequently, most Waikiki basements will experience water infiltration through the perimeter walls and often through the slabs. The exterior walls of this featured building were originally waterproofed using bentonite clay. Possessing good impermeability due to its expansive nature in a hydrated state, leaks can nonetheless occur for various reasons. At this project, water infiltrated through below-grade concrete walls at both cold joints (the interface between two different concrete pours) and shrinkage cracks, as well as through the wall/slab interface. Infiltrating water sometimes conveyed bentonite to the inside surface of the walls, depositing tell-tale streaks on the wall face. Wishing to curtail future water infiltration, the owner's design architect engaged a waterproofing 28 December 2013 - January 2014 BMH

Table of Contents for the Digital Edition of Building Management Hawaii December/January 2014

Signs & Safety How Do I Get Out Of Here?
Signs Of A Safe Building
A Sign From The Feds
Water Savings Coming Clean With Recycled Water
Water & Energy: Two-For-One Savings
Solar  Hawaii’s Leaders In Solar
Waterproofing Cementious Coating Vs. Polyurethane Foam
Sky Arches
The $1 Million Mistake
Seal The Deal
Resin Injections Save Basement
Waste Management Keeping The Trash Industry Clean
Special Offer
Assistance Animals Making Room For Rover
Green Cleaning Be Green: Resources & Tips

Building Management Hawaii December/January 2014