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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

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