105406 — Drilled Holes in Masonry and Structures

406.01 Description

Drill holes for grouting of bars, bolts, or anchorages. In portions of masonry structures that will remain in the final structure, the drilling of holes for temporary construction purposes is prohibited, unless approved in writing by the Director or Deputy Director of the Office of Structures. Do not drill holes for temporary construction purposes in new or existing masonry structures without a prior written approval from Director or Deputy Director of Office of Structures.

406.02 Materials

Grout 902.11(c)

406.03 Construction

Drill holes only in the solid portion of masonry. Do not drill where cracks exist. Drill holes at least 1/2 in. larger than the insert and at least 6 in. from all non-intersecting masonry surfaces. When dowel bars are used, use at least No. 6 dowel bars. Clean the holes and fill two thirds full of grout. Place the insert, keep it in place and allow to set at least 24 hours, until it reaches a compressive strength of at least 3 000 psi, or until it is set to achieve the strength required for the contract application, obtaining the required strength according to the manufacturers’ specifications. If grouted bar, bolts, or anchorages for temporary construction are no longer needed, remove them as specified in 420.03.02(n).

406.04 Measurement and Payment

Drilled Holes in Masonry and Structures will be measured and paid for at the Contract unit price per linear foot of drilled hole. The payment will be full compensation for all material, labor, equipment, tools, and incidentals necessary to complete the work. Inserts will not be measured but the cost will be incidental to other pertinent items. Drilled holes and removal of temporary items for which no specific pay item is included in the Contract Documents will not be measured but the cost will be incidental to the other pertinent items. 2025 STANDARD SPECIFICATIONS FOR CONSTRUCTION AND MATERIALS 410 — PILING CATEGORY 400 STRUCTURES SECTION 410 — PILING

410.01 Description

Furnish and install piling, including performing wave equation analysis. Perform Dynamic Pile Monitoring using Pile Driving Analyzer (PDA) and Case Pile Wave Analysis Program (CAPWAP) as specified. When drilled shafts (caissons) are specified, refer to Section 412. When a Load Test item is included in the Contract Documents, conduct and record load tests.

410.02 Materials

Sand 901.01 Concrete for Steel Pipe 902.10, Mix No. 3 Slump 4-6 in. Tremie Concrete for Steel Pipe Piles 902.10, Mix No. 4 Timber Piles 907.01 Timber Sheet Piles 907.01 Resin and Fiberglass Caps 907.01.01 Steel Pipe Piles 907.02 Steel H Piles 907.03 Steel Sheet Piles 907.04 Reinforcing for Steel Pipe Piles 908.01 Hardware 909.10 Water 921.01 Timber Preservatives 921.06

410.03 Construction

410.03.01 WEAP Analysis and Hammer Approval. At least one month prior to the start of pile

driving operations submit the Pile and Driving Equipment Data sheet and a Wave Equation Analysis of Pile (WEAP) for the tested piles. Submit, for approval, to the Director, Office of Structures, the hammer name, model, and manufacturer’s data for each pile hammer and procedure proposed to be used for pile driving, including any special operational and site or pile preparation requirements, Manufacturer’s Catalog Information and a completed Pile and Driving Equipment Data Form provided in the Contract Documents. 2025 STANDARD SPECIFICATIONS FOR CONSTRUCTION AND MATERIALS