CJGrout 20FDS
CJGrout-20FDS is a fast, dry environment- sprayed grout used for mass lightweight fills and bulk void filling applications. 20FDS is only suitable for sprayed applications; due to its fast speed, it can be placed in near-vertical applications, such as tunnel annulus bulkhead sprays, overbreak fills, and similar applications. Due to its very fast speed, 20FDS is not suitable for injection applications.
Past 20FDS applications include a mass lightweight fill for utility protection under a new bridge approach fill embankment on I-395 in Alexandria, Virginia, and as a sprayed-in-place alternative to EPS blocks for lightweight fill over a buried parking deck in Fairfax, Virginia.
Some projects include:
- sprayed tunnel abandonment under an apartment in Boston, MA
- lightweight fill in lieu of EPS in Tysons Corner, VA
- mass lightweight fill under I-395 in Arlington, VA
Typical Uses
- Building up exposed faces
- Spray filling abandoned tunnels
- Rock overbreak fills
Physical Properties of CJGrout-20FDS
CJGrout’s 6.3KSF compressive strength makes it well-suited for use under light to moderate loads. The free rise density is 2.0-2.2 lb/cuft.
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