The Importance of Blind Side Waterproofing17 Oct 2016, Posted by Concrete Facts in
Blindsided forming is becoming the method of choice as nearby structures, property lines and terrain limit excavation on today’s construction sites. Companies who want LEED credit also opt for blindsided forming as less excavation is required for a blindsided wall system.
Blind side concrete forming is already challenging in many ways. One of the main factors that impacts the integrity of blindsided forming is water invasion from groundwater.
Here is why waterproofing your blindsided forming is important.
Why is Waterproofing Your Blindsided Forming Important?
Waterproofing is important in blindsided forming because it decreases liability. Without waterproofing, liability claims can be triggered by groundwater leakage problems. Water leakage compromises structural integrity.
On top of this, serious problems arise when this water leakage comes from unexpected hazardous sources such as sewer lines.
In short, it’s not enough to have a robust system hold back the dirt. You also need a method to hold back the groundwater as well.
How Water Invades Blindsided Concrete Forming
Water will find its way in if no waterproofing is used during blindsided concrete forming. Water penetration occurs through cracks that naturally occur as concrete shrinks and moves.
Water also travels through concrete even if no cracks are present. This happens through capillary action which sucks water through pores and hydrostatic pressure which forces water into the pores.
Types of Waterproofing for Blindsided Wall Systems
There are three types of waterproofing used in blindside forming; all of which can be found at most hardware and home improvement stores or from general construction material suppliers. These consist of bentonite sheets, spray applied membranes, and plastic sheet goods.
Bentonite is historically the choice for blindsided application and works well because of its ability to self-heal. It is a clay, that, when hydrated, is impermeable to water.
Spray applied membranes on the other hand actually bond to the concrete itself and provide substantial protection.
Finally, plastic sheet goods combine a membrane with sheeting as a waterproofing method. Each of these methods are proven and will set you on the road to headache-free job.
Where Can I Find Quality Blindsided Forming Equipment?
Forming America has the quality blindsided forming equipment you need to work alongside your waterproofing method of choice. With the right forming equipment on hand, we can provide you with just the right equipment for the job, no matter what the size.
Plus, we help you to stay in budget with the flexibility to rent or buy forms. Contact Forming America or call 1-888-993-1304 today to find out how our equipment can make your next job easier.