Controlled Low Strength Material (CLSM)

‘Flowable Fill’

Controlled Low Strength Material (CLSM)

‘Flowable Fill’

Composition of Concrete FillComposition of Concrete Fill

Cement Sand Water Air-Entraining Additive

Elastizell Engineered Fill

Darafill

Property ComparisonsProperty 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”

Specific Job UseSpecific Job Use Corpus Christi Seawall Project

Mixing ProcedureMixing Procedure Admixture added at site

Placement ProcedurePlacement Procedure Longitudinally-cut pipe used as troughs

Placement ProcedurePlacement Procedure Flow of concrete similar to water

Voids Before PlacementVoids Before Placement Bulkheading required to contain flow

Voids After PlacementVoids After Placement Density low enough for hand excavation

Finished SectionFinished Section Used as formwork for concrete placement