Jim Kaylor                                                 Tel:  310.650.4263                                Email:  jim@DurabilityConsultants.com

© 2017 by Durability Consultants

20/21

ULTRA LOW PERMEABILITY &

SHRINKAGE REDUCING  ADMIXTURE 

ASTM C494 Type S Admixture

                                              MasterFormat Involving Vapor Lock
                                        03 00 00 Concrete -
                                        03 30 00 Cast-in-Place Concrete
                                        03 37 00 Specialty Placed Concrete/Shotcrete
                                        03 40 00 Precast Concrete
                                        03 50 00 Cast Decks and Underlayment
                                        03 70 00 Mass Concrete 

                                        07 00 00 Thermal and Moisture Protection -
                                        07 01 00 Operation & Maintenance of Thermal                                                         & Moisture Protection 
                                        07 10 00 Dampproofig & Waterproofing 
                                        07 16 00 Cementitious & Reactive                                                                             Waterproofing 

The Backstory

The most common and historic way to "protect" structural/reinforced Concrete has been traditional water/damp proofing membranes; peel-n-stick, glued, nailed, rolled on and sheets.  The detail above says it all.... On the left, a popular Grace system that's been around for years. A number of products carefully glued and taped into position.  Seperate trades that must be coordinated to come back several different times between plumbing and concrete installations. On the right, an integral concrete admixture detail.  A 'swellstop' product installed properly at joints.  Perhaps an 'Enjecto Tube' system for higher risk environments.  Period.  Now in your mind, what system has the greatest risk of failure?  There are dozens of these jobs that have been in service for years on the West Coast.  The learning curve is in place to easily cut $8 to $35 a square foot off your "Waterproofing" line - No more Finger Pointing - And most importantly, if there is a leak with this system....that's where the fix is - drill, inject, patch and sack....done.

Vapor Lock is the state-of-the-art answer to changing the overall nature of Concrete - normal concrete with a permeance in the 20 - 200 US Perm range with the addition of Vapor Lock 20/21 is lowered to a warranted, tested and insured level maximum of 0.174 US Perms....and usually in the 0.02 US Perm range.

Product Applications - 

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BELT-AND-SUSPENDERS WATER PROOFING

Encinitas, CA - One story subterranean structural shotcrete walls.  Local engineer required Carlisle peel-n-stick membrane to be used with Vapor Lock 20/21 Integral Waterproofing Admixture in the 10" thick walls.  Water table is 4-10 feet, seasonally adjusted.

MEMBRANE FREE - STAND ALONE WATERPROOFING

Downtown San Diego, CA - One story subterranean, structural shotcrete applied directly over wooden lagging.  Below grade 12" thick walls, slab and s-o-g all received Vapor Lock Integral admixture (Class A Vapor Barrier was used on slabs).  Water table is 7 feet, plus or minus.

MEMBRANE FREE - STAND ALONE WATERPROOFING

CSUSD THETA CHI FRATERNITY - San Diego, CA. Podium (Plaza) Deck, with all exposed 12" thick structural deck sections receiving Vapor Lock.  Serves as roof for subterranean parking.  Integral requirements included a four foot puddle into interior space and swellstop around the penetrations.

MEMBRANE FREE - STAND ALONE WATERPROOFING

UCSD MUIR GRADUATE HOUSING - La Jolla, CA. Three foot mat (raft) slab.  Thirty inches of plain concrete with 6" of Vapor Lock enhanced concrete for the last lift of placements.   Replace HDPE/Boat type waterproofing;   LEED Gold.

SRINKAGE REDUCING & ULTRA LOW PERMEABILITY

Terminal 2 Parking Plaza, San Diego, CA. The Airport Authority choose Vapor Lock for their second and third story post-tensioned parking decks and all the ramps to meet their low-shrinkage (0.036% change at 28 days) specifications.

Vapor Lock 20/21 can be budgeted in the thirteen cents ($0.13) a square foot, per inch of concrete thickness, installed, range.

*It's important to note - Vapor Lock is designed and dosed off of cementitious material (cement & fly ash) in your mix.  As you move into "structural" concrete mix designs with higher sack contents, the budget of Vapor Lock similiarly increases.