514514.5 MEASUREMENT and PAYMENT

WY · 2021 Standard SpecificationsBook pages 0–0View official source ↗

1 The engineer will measure:

1.Mechanical Splices as one complete unit or by each splice installed. Modifications

required for the placement of the selected mechanical splices will not be measured for additional payment.

2.Reinforcing Steel and Reinforcing Steel (Coated) as one complete unit or by the

pound [kilogram] for the quantity specified. 2 The department will pay as follows:

Pay Item

Pay Unit

Measure to the Nearest

Mechanical Splices Reinforcing Steel

LS, EA [Ea] LS, LB [LS, kg] LS, LB [LS, kg]

LS, EA [Ea] LS, lb [LS, kg] LS, lb [LS, kg]

Reinforcing Steel (Coated)

496

Pay to the Nearest LS, EA [Ea] LS, 10 LB [LS, 5 kg] LS, 10 LB [LS, 5 kg]

Removal of Bridge Deck Concrete

515.1DESCRIPTION

1 This section describes the requirements for scarifying, hydro-demolition, and removing

unsound and delaminated areas of concrete.

515.2MATERIALS--Vacant

515.3EQUIPMENT

515.3.1 Surface Preparation Equipment for Class I-A, Class I-B, Class II-A and Class II-B 1 Provide sawing, mechanical scarifying, sandblasting equipment, and all other tools

necessary to complete the work.

Provide power-driven hand tools to remove unsound concrete. With the engineer’s approval, jackhammers heavier than the nominal 30-pound [14 kg] class or 60-pound [27 kg] hammers with a spade at least 6 in [150 mm] wide may be used.

Provide self-propelled mechanical scarifying equipment capable of accurately establishing profile grades by referencing from the existing deck or from an independent grade control. Ensure that the equipment has the following:

1.A positive means of controlling cross-slope elevations;

2.Sufficient power, traction, and stability to maintain an accurate and uniform

depth of cut; and

3.An apparatus to keep dust generated by scarifying from escaping into the air.

515.3.2 Surface Preparation Equipment for Hydro-Demolition 1 Provide hydro-demolition equipment that is a computerized, self-propelled machine that

utilizes a high pressure water jet stream. Ensure the hydro-demolition equipment is capable of removing the depth of concrete shown in the contract, and specified unsound concrete. Provide vacuum cleanup equipment that is capable of removing wet debris and water.

1.Ensure the supplier of the hydro-demolition equipment provides an authorized

agent to observe the initial set-up of the equipment and to assure that the removal operation is progressing to the satisfaction of the engineer. Ensure the agent has proven experience with hydro-demolition removal operations. Ensure the agent is

497

Removal of Bridge Deck Concrete

Source: Wyoming Standard Specifications for Road and Bridge Construction, 2021 Edition. Pages 0–0 of 771.

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513 4 Provide grooves that begin and end within 2 in to 4 [50 mm to 100mm] in of expansion

515 515.5 MEASUREMENT and PAYMENT