Concrete Dry Shrinkage Control
How to control dry shrinKage cracking
GreenCanvas Expansive Component
Green Umbrella® GreenCanvas™ expansive component is a cementitious, inorganic powder. When added to a standard concrete mix, will produce a shrinkage compensating concrete (SCC); Type G (ACI-223R-10).
GreenCanvas is a specialty concrete component classified by type based on the chemical mechanism used to obtain expansion in the concrete matrix during the curing process. Structure design, concrete mix design, and placement guidance are provided by the American Concrete Institute (ACI) document ACI 223, “Guide for the Use of Shrinkage Compensating Concrete.” Compliance and quality assurance can be measured by standard ASTM tests and procedures.
CUT YOUR LABOR
- Eliminates the labor needed to cut and fill joints
- Enables large pours
CUT YOUR DOWNTIME
- No need to schedule concrete cutting or joint filling
- GreenCanvas is added to the mix
CUT YOUR ENVIRONMENTAL IMPACT
- Repair and tear-out waste due to cracking is eliminated
- The end result is a more sustainable slab
Dry Shrinkage Control
The Green Umbrella® GreenCanvas™ expansive component creates durable, sustainable concrete.
FEATURES & BENEFITS
Standard Concrete
- Few, if any, shrinkage cracks
- Large, monolithic pours
- Savings over traditional slabs requiring joints and joint filler
Bridge Deck
- Eliminates joints and minimizes dry shrinkage
- Reduced intrusion into the concrete
- Reduced exposure of rebar to corrosion and elements
- Chloride exposure is reduced
- Reduced washboard effect on highways due to curling
Polished Concrete
- Elimination or reduction of shrinkage cracks
- Promotes even aggregate reveal
- Few, if any, joints, enhancing the appearance and improving cost savings
- No issues with slab curl at joints or around edges
Additional Features & Benefits
- Reduces or eliminates dry shrinkage cracks
- Reduction in joints, allowing large monolithic pours
- Eliminates slab edge curling
- Transparent in the mix
- Cementitious
- Expansion occurs independently
- Does not require any special handling, placing, finishing, or curing techniques and procedures
- Sustainable
- Does not contain chemicals, unlike most shrinkage-reducing admixtures
- Cost savings offsets costs incurred cutting and installing joints
- Reduction in joints eliminates costly installation repairs on joints
- Cuts labor, downtime, and environmental impact
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Eliminate dry shrinkage cracking