TREMproof Triple Waterproofing System (TWS) is a blindside and underslab triple-layer waterpoofing assembly consisting of 20 mils of HDPE, expandable granular bentonite and a protective layer of spun-bonded polyester, coated with 60 dry mils of polymer-enhanced, liquid-applied asphalt membrane.
PRECON is used as a blindside membrane in vertical applications where access to the positive side is limited. The membrane can also be used for horizontal applications for underslab waterproofing and vaporproofing.
With blindside waterproofing, a drainage course and waterproofing membrane are installed before the concrete vertical walls are constructed. Essentially, the foundational walls are put into place after the waterproofing systems are already in place. In other words, the building is being constructed from the outside in.
Applying blindside waterproofing can be tricky. The system is not installed on a uniform and flat surface; instead, it is placed over a soil retention system made up of lagging beams, sheet pilings and/or compacted native soils. This approach is primarily required on projects where property lines or nearby structures limit excavation and access. For example, it is often used in built-up areas for office, multifamily or medical developments, zero lot line foundation walls, or subway tunnels.
PreTak is a pre-applied sheet membrane for blindside vertical wall waterproofing and pre-applied underslab waterproofing and methane gas protection. It utilizes a high-density polyethylene (HDPE) sheet that, once installed, provides a tough and durable waterproofing membrane. Combined with a Pressure Sensitive Adhesive (PSA), PreTak becomes fully adhered when freshly placed concrete or shotcrete is applied directly to it, eliminating the potential for lateral water migration.
EPRO Shoring Systems, made of composites in the e.series line, also provides blindside vertical protection against nuisance water, groundwater, and perched water, along with contaminated vapors and methane gas. These are designed for various shoring applications including soldier pile, back lagging, soil nail, internal rakers, secant walls, sheet pile, shotcrete and poured walls.
In the clip from the 2018 Packers vs. Dolphins game in week 10, Packers receiver Equanimeous St. Brown (No. 19) initiates an illegal blindside block on cornerback Bobby McCain (No. 28) as receiver Devante Adams turns up field after catching a pass near the sideline. Notice that St. Brown is moving directly perpendicularly and back toward his own goal line when he throws a crushing block that ends up injuring McCain and removing him from the game.
Browns receiver Jarvis Landry (No. 80) was flagged for an illegal blindside block when he and Seahawks defender Marquise Blair (No. 27) collided along the sideline during a play in their week 6 game in 2019. The blindside block criteria for the block was not met in this collision since Landry was not traveling toward his own goal line and contact was initiated by Blair.
In 2019, the league instituted a specific rule banning "blindside blocks." The term "blindside" is an absolute misnomer, though, as the rule bans all blocks made when a player is moving parallel to the line of scrimmage or back toward his own goal line.
There is an exclusion of "blindside blocks" that take place in "close-line play," which is generally regarded as "within the tackle box." Griffin's blocks might have been made right on the edge of that line. If it was within the tackle box, then the rule was improperly applied.
In terms of fixing it, that should start with a new name. When the words "blindside block" are uttered by a referee, very few football fans (or commentators ... or head coaches) can wrap their heads around the concept. Because ... the plays rarely involve anything related to the blindside. Coming up with a succinct solution may be a challenge ("illegal block while moving parallel to the line of scrimmage or back toward a player's own end zone" is a real mouthful), but it would go a long way in clearing up much of the confusion that ensues when the penalty is enforced.
Blindside waterproofing is used in construction situations when excavation outside of foundation walls is not feasible. This method is common in urban areas where a project has close proximity to bordering structures or there is little room for maneuvering heavy equipment. Here is the basic process for blindside application:
Derived from the roofing industry, asphaltic sheets are a reliable blindside waterproofing option when you need a flexible material or when applying in cold temperatures. They are comprised of a modified asphalt-polymer blend with reinforced fiber and are adhered to concrete with a mechanical bond. Seams are heat-welded together, which can make the application process more labor intensive.
Lastly, it is important that your project is protected, as such a vulnerable stage cannot be easily remediated. When looking for a blindside waterproofing product warranty, consider a single source warranty that offers watertight leak coverage, including at seams, details and transitions, and that provides specific repair information.
Just about every season on Survivor, castaways and fans alike are thrown for a complete loop when an individual leaves the game due to an unbelievably epic blindside. Many of these strategic game moves are bold, cutthroat, and cruel, while others are total accidents. Let's look back at some of the best! Stream every season of Survivor on CBS All Access.
Surely there are going to be some snubs on this list and your favorite blindside might not have made the cut. If that ends up being the case, let me know which blindside you would have included instead! 041b061a72