FHWA FP-24
Section 205 — Rock Blasting
FP-24 · Division 200 — Earthwork. Full current text with cross-references on BuildSpec.
Section 205. — ROCK BLASTING Description 205.01 This work consists of rock fragmentation blasting using production and controlled blasting techniques to construct engineered rock cuts. 205.02 Definitions. (a) Production blasting. Blasting using widely spaced blast holes that typically contain larger explosive charges to expedite movement and fragmentation for rock removal. (b) Controlled blasting. Blasting that includes presplit blasting and cushion blasting hole techniques. Controlled blasting uses closely- spaced and carefully aligned blast holes that typically contain lighter charges than…
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