1. Controlled Low Strength Material (CLSM) ‘Flowable Fill’

2. Composition of Concrete Fill
Cement
Sand
Water
Air-Entraining Additive
Elastizell Engineered Fill
Darafill

3. Property Comparisons Property CLSM Type II Concrete Cast Density
75-90 pcf
150 pcf
28-day compressive strength
90 psi
3000 psi
Slump
unattainable
3” - 4”

4. Specific Job Use
Corpus Christi Seawall Project

5. Mixing Procedure Admixture added at site
Added at site because of the consistency; Too much sloshing will overturn vehicle or material will leak out the back of the truck

6. Placement Procedure
Longitudinally-cut pipe used as troughs

7. Placement Procedure
Flow of concrete similar to water

8. Voids Before Placement
Bulkheading required to contain flow

9. Voids After Placement
Density low enough for hand excavation

10. Finished Section
Used as formwork for concrete placement