Lightweight concrete bridge deck

Author: xeef

August undefined, 2024

WebMaterial Quantity: 330 cubic yards of lightweight concrete in deck and parapet. Material Specifications: VDOT A4, f’c=4,000 psi, air entrained 1,500 coulombs permeability. New Bridge Deck Dimensions: 245’ length x 40’ width x 8” thick South Elevation Rte. 608 over Rte. 95 NB and SB. Year Completed: 2009. The Route 608 bridge over ... WebDec 3, 2024 · The density of the standard concrete was 2300 kg/m 3, and the density of the lightweight concrete was 1800 kg/m 3. The characteristic permanent load was calculated by considering the slab’s self-weight (dead load) and deck load (10.6 kPa and 9.1 kPa for standard and lightweight concrete, respectively).

New Lightweight Concrete Bridge Deck Facilitates Widening

Webfrom all lightweight concrete with a unit weight of 100 pounds per cubic yard. The use of all lightweight concrete in barriers and in some cases bridge overhangs provides a reduction in the total weight of the barriers by almost 33% allowing the transportation of more barrier units on one truck and easy handling. WebApr 30, 2024 · In this study, a fully precast steel—ultrahigh performance concrete (UHPC) lightweight composite bridge (LWCB) was proposed based on Mapu Bridge, aiming at … butterflow simply

Precast steel—UHPC lightweight composite bridge for accelerated …

WebApr 25, 2024 · Lightweight concrete is a mixture made with lightweight coarse aggregates such as shale, clay, or slate, which give it its characteristic low density. Structural lightweight concrete has an in-place density of 90 to 115 lb/ft³, whereas the density of regular weight concrete ranges from 140 to 150 lb/ft³. Web50 MPa (7250 psi) lightweight concrete for the sloping panels that support the edge of the cantilever slab. One of the most impressive uses of lightweight concrete in bridge construction is the Stolma Bridge in Norway. Using 1600 m3 (2100 cy) of lightweight concrete with 28-day center portion of the main span, designers were able to WebApr 10, 2024 · The first known fiber reinforced concrete (FRC) bridge deck slab without any internal steel reinforcement was constructed on the Trans Canada Highway 104 and opened to traffic on December 1995. cd the mountbatten festival of music 2004

LIGHTWEIGHT SELF-CONSOLIDATING CONCRETE BRIDGE-DECK …

Evaluation of force and dynamic factor on reinforced concrete deck …

WebThe results showed that bridge decks with fewer cracks than were typical of decks constructed with normal weight aggregate over the past 20 years or no cracks can be … WebNov 1, 2012 · Lightweight (LW) concrete results in bridge deck panels that are easier to lift, and its use reduces the bridge deck and substructure weight. Twenty panels constructed using LW and normal-weight ... cd the legendWebApr 14, 2024 · Full-scale lightweight self-consolidating concrete bridge-deck slabs reinforced with steel and GFRP bars were tested under a single concentrated load … butterflow pen with free refill

"WebLightweight Concrete Bridge Design Primer (.pdf) (November, 2024) State-of-the-Practice Report Monitorable Post-Tensioning Systems (.pdf) (September, 2024) Tech Brief: … " - Lightweight concrete bridge deck

Lightweight concrete bridge deck

Choosing the Right Bridge Decking System - U.S. Bridge

WebLightweight Cellular Concrete (LCC) contains type (I) II‐V Portland cement, water, and a preformed foam. The foam looks like shaving cream and is varied in quantity to control … WebExpanded shale, expanded clay and expanded slate (ESCS) lightweight aggregate is prepared by expanding select minerals in a rotary kiln at temperatures over 1000° C. The production and raw material selection …

Did you know?

WebThe deck was cast with sand-lightweight concrete with an equilibrium density of 110 pounds per cubic foot. After 10 years of use, the exposed deck has performed excellently … WebDec 12, 2024 · Lightweight concrete: The permissible range for unit weight of lightweight concrete shall be 110 to 130 pounds per cubic foot. The design unit weight value shall be provided on the Plans, and be in accordance with the specified lightweight mix design, also to be included in contract documents.

WebThe deck of the Mihara Bridge, composed of bendable concrete, is only five centimeters thick and has an expected lifetime of one-hundred years. [2] Though HPFRCCs have been tested extensively in the lab and been employed in a few commercial building projects, further long-term research and real-world application is needed to prove the true ... WebBehavior of Lightweight Concrete Bridge Decking. The material is a structural lightweight concrete made with specific aggregates which meet rigid standards–aggregates which …

WebOct 1, 2024 · This is a 21.0 m long single-span simple supported structure with 10.5 m wide deck slab having 2 × 3.5 m wide roadway and 2.0 m wide sidewalk. The span contains four FRP girders acting compositely with the concrete deck slab, and transversely braced at supports with concrete cross-beams (Fig. 3). WebWoodrow Wilson Bridge, Washington, DC Lightweight concrete deck panels • f'c = 5,000 psi with air-dry density of 115 pcf • Allowed thicker deck slabs-Improved stiffness and durability • Allowed wider deck-38 ft to 44 ft roadway width • Improvements made without strengthening the existing superstructure

WebPrecast Concrete Deck Systems. Unlike CIP decks, precast concrete decks are made with concrete slabs that are cast elsewhere and delivered to the site of the bridge for construction. Each segment is about 8 to 12 ft long. ... Strong yet lightweight, these decks work particularly well on movable bridges and short to medium span bridges ...

WebThe system consists of FRP plates bonded to the bottom grating of FRP double-layer grating panels, creating a bidirectional, lightweight panel for the grid construction of corrosion-free concrete bridge decks. The … cd the last waltzWebA lightweight hybrid system exists called “Exodermic Deck” that combines attributes of a poured structural slab with the lightweight characteristics of open grid steel decks. This special floor construction is an outstanding option when weight limiting constraints are put upon a project. Construction Details Property Data and Span Tables butterflow refill redWebMar 1, 2007 · The proposed hybrid bridge deck is a sandwich structure consisting of three layers of different materials: FRP composites for the tension skin, lightweight concrete (LC) as a core material and ultra high performance fiber reinforced concrete (UHPFRC) for the compression skin (see Fig. 1, Fig. 2).The FRP layer, consisting of a 5. mm thick GFRP … cd theorieprüfungWebConcrete-filled steel grid bridge decking provides a far greater life expectancy than reinforced concrete and its durability resists heavy traffic, weather and deicing agents. … butterfly000Webvirginiadot.org cdt help to buyWebJan 11, 2024 · The paper presents an overview of the applications of lightweight concrete and GFRP composite bars in the deck slabs of bridge structures. Limited research on this … cd the lordsWebMay 29, 2024 · Orthotropic steel decks (OSDs) have been widely used in long-span bridges due to their advantages of being lightweight, having high capacity, and allowing rapid construction. However, due to the insufficiency of local stiffness of OSD, fatigue cracking and pavement damage have been common problems of OSDs worldwide. It seriously … cd the mission