LATEX MODIFIED CONCRETE BRIDGE DECK OVERLAYS

LATEX MODIFIED CONCRETE BRIDGE DECK OVERLAYS

Bridge No. 513/32, SR 5 Overcrossing NE 145th Street

Bridge decks, Concrete curing, High early strength cement, Latex modified concrete, Overlays \(Pavements\), Street closure, Time Keywords: bridge deck overlay, concrete additives, bridge deck repairs, latex modified concrete, I-5, Interstate 5, Seattle,

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Performance of Concrete Bridge Deck Overlays, HR-501, 1990

The removal of unsound concrete below the top layer of steel was sometimes necessary. The objective of this project was to determine if the bridge overlays would provide a cost effective method of rehabilitation. To do this, unsound and delaminated concrete was removed and replaced by an overlay of low slump or latex modified concrete.

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PDF Technical Assistance Report Very-early-strength Latex

Latex-modified concrete (LMC) is a portland cement concrete in which an admixture of styrene butadiene latex particles suspended in water is used to replace a portion of the mixing water. This type of concrete has been used on highway bridges over the past 35 years; it was first used on a bridge deck in Virginia in 1969 (1,2).

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APPENDIX A - SURVEY QUESTIONNAIRE | Concrete Bridge Deck

A total of 45 responses were received for a response rate of 70%. NATIONAL COOPERATIVE HIGHWAY RESEARCH PROGRAM Synthesis of Highway Practice Topic 34-09 CONCRETE BRIDGE DECK PERFORMANCE QUESTIONNAIRE PURPOSE OF THE SYNTHESIS Concrete bridge deck deterioration, in the form of concrete distress and reinforcement corrosion, is one of the leading

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Hwy 430 Bridge Rehabilitation - Concrete Construction for

Total length of project limits is 1.8 miles. Scope of work includes milling 1” of the existing bridge deck; an estimated 50,000 SF of bridge deck repairs; 500,000 SF of ½” of total surface Hydroscarification, place and finish 500,000 SF of 1-1/2” Latex Modified Concrete overlay using Volumetric Mobile Mixers.

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Decks & Joints | TSP2 Bridge Preservation

Oct 09,  · Rapid Concrete Bridge Deck Overlays [ -10-09] Michael M. Sprinkel, P.E., Associate Director of the Virginia Transportation Research Council has produced a 29-slide Power Point presentation on concrete bridge overlays. The presentation describes Virginia’s experience with the use of three types of overlay: LMC (Latex Modified Concrete)

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Factors Affecting Bond Strength of Overlay Concrete on

It is mandatory to cure latex modified concrete for two days, and hybrid concrete cement overlay should be curried for minim of three days and maximum of seven days. Other types of concrete should be curried as it is required like very high early strength latex modified concrete which only needs three hours of curing before it can be used.

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Definitions of Prequalification Classes of Work for the

BRIDGE - DECK REPAIRS: Repair areas of unsound concrete, remove or repair existing deck joints and guard angles and prepare the deck to receive an overlay. These repairs may be done to any type of deck surface, including but are not limited to epoxy overlays and latex modified concrete overlays. Work may include

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Elmwood Avenue Bridge - Penetradar

The Elmwood Avenue Bridge is a five span structure that crosses the Genesee River in Rochester, New York. Rehabilitation work on this bridge deck was completed in , which involved the removal of the existing overlay, scarification of 0.5 inches of the existing concrete deck and the placement of a new 1.5-inch latex modified concrete overlay.

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Bridge Deck Overlay - Modified Concrete Suppliers, LLC

Bridge Deck Overlay. Call 317-634-5258 for a LMC Mix Design for LMC Specifications. Installation of a Latex Modified Concrete Overlay on a Bridge Deck.

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Grany Street Ridge Rehailitation

repairing key structural components and protecting bridge elements from deterioration. SOPE OF WORK • New latex modified concrete deck overlay • Repair structural components • Seal and waterproof bridge components • Replace new elastomeric bearings and expansion joints • Reconstruct portions of roadway and sidewalk at bridge approaches

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Susquehanna County Bridge 4 Deck Overlay Project

Project consists of removing the existing epoxy overlay and installing a latex modified overlay on County Bridge 4 including associated traffic control, utility coordination, erosion controls and all related work. Bridge, Addition. General Requirements, Vehicular Access and Parking, Traffic Control, Temporary Barriers and Enclosures.

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PDF PERF.'ORMANCE OF lATEX MODIFIED CONCRETE OVERL-~YS ()l'f

bridge decks utilizing Latex Modified or Low Slump Concrete Overlays. These overlays were placed on both decks of new two course layered construction as well as on older rehabilitated decks which are designated by an "R" following the individual bridge number. The objective of the study

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scarification of concrete slab

BRIDGE DECK LATEX CONCRETE OVERLAY Effective: May The Contractor shall use mechanical scarification equipment to remove an initial ¼" minimum depth of concrete, creating a uniform roughened concrete deck surface to facilitate hydro-scarification.

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Design and Performance of Low Shrinkage UHPC for Thin

The service life of bonded overlay materials used for bridge deck rehabilitation is affected by shrinkage of the overlay and bond between the overlay and substrate. There is a growing interest in using ultra-high performance concrete (UHPC) for thin bonded overlays. However, UHPC can exhibit high autogenous shrinkage leading to cracking under restrained conditions.

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SCDOT Supplemental Specifications for Highway Construction

Subject (PDF Format) 06/01/2001. Bases & Subbases Quality Control/Quality Assurance. 11/01/2006. Monitoring Devices - Piezometer. 02/01/2007. Specifications for the Replacement or New Installation of Traffic Counting, Classification or Weigh-In-Motion Systems. 03/01/2007. Critical Path Construction Schedules.

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