FHWA FP-24
Section 614 — Flowable Backfill
FP-24 · Division 600 — Incidental Construction. Full current text with cross-references on BuildSpec.
Section 614. — FLOWABLE BACKFILL Description 614.01 This work consists of constructing flowable backfill of controlled low strength material. Material 614.02 Conform to the following Subsections: Chemical admixtures 711.03 Flowable backfill aggregate 703.15 Hydraulic cement 701.01 Pozzolans 701.03 Water for cementitious materials 725.01(a) Construction Requirements 614.03 Composition of Mix. Design a well -graded, flowable, self -leveling mix. Design a mix with a 7-day compressive strength between 75 and 250 pounds per square inch according to ASTM D4832. Verify the mix design with trial…
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