higher performance in precast concrete with cfrp

specializing in the production of large, medium and small concrete mixers, concrete mixing stations, stabilized soil mixing stations and other equipment. It is a heavy industry enterprise integrating R & production and sales.

Long-term behavior of precast, prestressed concrete ...

with steel or concrete connectors and maintained a high de-gree of composite action. Frankl13 and Frankl et al.14 conducted an experimental pro-gram—including six full-scale precast, prestressed concrete sandwich panels—to investigate flexural behavior using carbon-fiber-reinforced polymers (CFRP) as

Get PriceEmail Inquiry

Performance of precast segmental concrete beams ...

Jan 15, 2019  CFRP tendons can be used to replace the steel tendons for the use in the precast segmental concrete beams to overcome the possible corrosion-induced damage. All the tested beams with CFRP tendons exhibited excellent load-carrying capacity and ductility.-Tendon bonding condition greatly affected the flexural behavior of the segmental beams.

Get PriceEmail Inquiry

Performance of CFRP posttensioned transverse grouted ...

Precast concrete specimens and CFRP rods Precast concrete panels were cast for this research with a 28-day concrete compressive strength of 11,000 psi (76 MPa). The specimens were grouted with the female-to-female joint configuration of Fig. 3; this is a new de-Figure 2. Plan view of jointed panel specimens. Note: CFRP = carbon-fiber-reinforced ...

Get PriceEmail Inquiry

(PDF) Performance of Precast Segmental Concrete Beams ...

Oct 04, 2018  Performance of Precast Segmental Concrete Beams Posttensioned with Carbon Fiber-Reinforced Polymer (CFRP) Tendons. Composite Structures 2018 (Accepted)

Get PriceEmail Inquiry

Behaviour of precast concrete beams prestressed with CFRP ...

Behaviour of precast concrete beams prestressed with CFRP strands Fam et al. [9] tested I-girders to examine the behaviour of CFRP as prestressing and shear reinforcement for concrete bridges. The effect of CFRP stirrup configuration and size on shear behaviour, and performance in supplying dowel action between girder and top slab were studied.

Get PriceEmail Inquiry

What Is High Performance Precast Concrete? - PCMA

Deadlines are quite deadly without the right materials. Prepare for anything with quick installation times. RESILIENCE. Time-tested and trusted resilience. Precast has stood the test of time. Up to date with FEMA regulations. High-Performance concrete can withstand natural disasters. Widespread fires.

Get PriceEmail Inquiry

Carbon fiber-reinforced concrete accelerates in Germany ...

Jun 12, 2020  As of 2017, its members had completed more than 1,400 projects using CFRP-reinforced CarbonCast technology, totaling 40 million ft 2 (3.7 million m 2). Please read about the CarbonCast technology, ... “Higher performance in precast concrete with CFRP ...

Get PriceEmail Inquiry

Structurally Composite, Thermally Efficient Precast Concrete

mal performance, CFRP grid provides the additional benefit of high corrosion resist-ance. Fabrication Composite precast concrete panels are fab-ricated in a long-line precast concrete pro-duction facility. In some cases, panels are prestressed, but can also be designed

Get PriceEmail Inquiry

GM-1301: High Performing Precast Concrete Building ...

Mar 11, 2013  High performance precast concrete enclosure walls stand apart from most "rainscreen" walls in several key respects: how they control rain penetration, how they provide airtightness, and their sequence of construction. This guide reviews the requirements for high performance enclosures as they apply to precast concrete, with special emphasis on the control of rainwater

Get PriceEmail Inquiry

Structurally Composite, Thermally Efficient Precast Concrete

mal performance, CFRP grid provides the additional benefit of high corrosion resist-ance. Fabrication Composite precast concrete panels are fab-ricated in a long-line precast concrete pro-duction facility. In some cases, panels are prestressed, but can also be designed

Get PriceEmail Inquiry

Fire Behavior of Thin CFRP Pretensioned High-Strength ...

More sustainable precast concrete structural elements are emerging from the research community utilizing high-strength, self-consolidating fiber-reinforced concrete (HPSCC) reinforced with noncorroding prestressed carbon-fiber-reinforced polymer (CFRP).

Get PriceEmail Inquiry

Behaviour of precast concrete beams prestressed with CFRP ...

Behaviour of precast concrete beams prestressed with CFRP strands Fam et al. [9] tested I-girders to examine the behaviour of CFRP as prestressing and shear reinforcement for concrete bridges. The effect of CFRP stirrup configuration and size on shear behaviour, and performance in supplying dowel action between girder and top slab were studied.

Get PriceEmail Inquiry

Numerical evaluation of the impact performance of precast ...

The cyclic behavior of precast segmental concrete bridge columns with high performance (HP) steel reinforcing bars and that with conventional steel reinforcing bars as energy dissipation (ED) bars ...

Get PriceEmail Inquiry

Newly patented precast concrete piles reinforced with CFRP ...

Jun 03, 2014  BETHLEHEM, Pa. (June 3, 2014) – A newly patented technology promises to dramatically extend the service life of precast concrete bridge piles by dramatically improving their corrosion resistance through the use of carbon fiber reinforced polymer (CFRP) grid . U.S. Patent 8,677,720, “Precast concrete pile with carbon fiber reinforced grid,” describes a composite support structure with []

Get PriceEmail Inquiry

BOND STRENGTH OF CFRP AND STEEL BARS IN CONCRETE

elements made of high performance concrete prestressed with CFRP tendons [1]. One notable example of this is the use of precast, prestressed 8.8 m (28.87 ft) long beams with L-shaped cross-

Get PriceEmail Inquiry

Use of CFRP/CFCC Reinforcement in Prestressed Concrete Box ...

Use of CFRP/CFCC Reinforcement in Prestressed Concrete Box-Beam Bridges. This paper presents the results of an experimental investigation on the flexural response of two identical box-beam bridge models reinforced and prestressed with different types of carbon fiber reinforced polymer (CFRP) tendons/strands.

Get PriceEmail Inquiry

Behavior of Precast Segmental Concrete Beams Prestressed ...

Oct 05, 2020  The test results show that CFRP tendons can replace steel tendons in segmental concrete beams as an external prestressing material. All the tested beams exhibited excellent performance regarding load-carrying capacity and ductility. The type of joint had an insignificant effect on the overall flexural behavior of

Get PriceEmail Inquiry

GM-1301: High Performing Precast Concrete Building ...

Mar 11, 2013  High performance precast concrete enclosure walls stand apart from most "rainscreen" walls in several key respects: how they control rain penetration, how they provide airtightness, and their sequence of construction. This guide reviews the requirements for high performance enclosures as they apply to precast concrete, with special emphasis on the control of rainwater

Get PriceEmail Inquiry

Performance of a moment resisting beam-column connection ...

Despite many advantages of precast concrete, it is not widely used in the United States, especially in areas of high seismic risk due to lack of knowledge about their performance.

Get PriceEmail Inquiry

Fiber Reinforced Polymer (FRP) ACI Guidelines and Field ...

Jul 06, 2018  CFRP AFRP GFRP. Typical Steel Rebar. 2000 MPa. 1000 MPa Linear elastic behavior to failure No yielding ... • 480 precast concrete panels (10 ft. x 23 ft.) • High Performance concrete • Panel joint filled with UHPFRC • Many partners. Halls River Bridge Replacement.

Get PriceEmail Inquiry

Design Examples - Transportation Research Board

Where =modulus of elasticity of prestressing CFRP (ksi) E. f. E. ct =modulus of elasticity of the concrete at transfer or time of load application (ksi)= E. ci. f. cgp =the concrete stress at the center of gravity of CFRP due to the prestressing force immediately after transfer and the self-weight of

Get PriceEmail Inquiry

SDO - Structures Design Office - Completed Research Projects

Dec 15, 2020  12/15/2020. Hybrid Prestressed Concrete Bridge Girders Using Ultra-High Performance Concrete. H.R. Hamilton. Gary R. Consolazio. University of Florida. William Potter. BDV31-977-101. 12/03/2020. Cracking of Reinforced and Prestressed Precast Concrete Deck Panels on Florida-I Beam Bridges: A Crack Disposition Study.

Get PriceEmail Inquiry

Transient Thermal Tensile Behaviour of Novel Pitch-Based ...

Dec 21, 2016  between CFRP (transverse to fibre direction [1]) and high-performance concrete [5]. One example of this trend is a new type of precast CFRP pretensioned concrete element intended as load-bearing panels for glass/concrete building facades [1]. Adequate load carrying capacity during exposure to fire is crucial for applications of CFRP precast

Get PriceEmail Inquiry

Fire behaviour of CFRP prestressed high strength concrete ...

ABSTRACT: More sustainable precast concrete elements are emerging utilizing high-performance, self-consolidating, fibre-reinforced concrete (HPSCC) reinforced with high-strength, lightweight, and non-corroding prestressed carbon fibre reinforced polymer reinforcement. One example of this is a new type of

Get PriceEmail Inquiry

Fire Behavior of Thin CFRP Pretensioned High-Strength ...

More sustainable precast concrete structural elements are emerging from the research community utilizing high-strength, self-consolidating fiber-reinforced concrete (HPSCC) reinforced with noncorroding prestressed carbon-fiber-reinforced polymer (CFRP). An example of this is a new type of precast CFRP pretensioned HPSCC panel intended as load ...

Get PriceEmail Inquiry

Mechanical performance of concrete pavement reinforced by ...

note = "Export Date: 16 May 2017 CODEN: CPBEF Correspondence Address: Fang, H.; College of Civil Engineering, Nanjing Tech UniversityChina Funding details: 51238003, NSFC, National Natural Science Foundation of China Funding details: 51578285, NSFC, National Natural Science Foundation of China Funding text: The authors acknowledge the financial support of the National Natural Science ...

Get PriceEmail Inquiry

Using Steel Fiber-Reinforced Concrete Precast Panels for ...

Jun 02, 2019  V. J. Ferrari, J. B. de Hanai, and R. A. de Souza, “Flexural strengthening of reinforcement concrete beams using high performance fiber reinforcement cement-based composite (HPFRCC) and carbon fiber reinforced polymers (CFRP),” Construction and Building Materials, vol. 48, pp. 485–498, 2013.

Get PriceEmail Inquiry

Flexural Behavior of CFRP Precast Prestressed Decked Bulb ...

Concrete Institute (ACI) 440.4R (ACI 2004) for CFCC strands and CFRP Leadine tendons (65% of the guaranteed strength). The pre-stressing force was applied 1 day before casting the concrete in the formwork using two bulkheads anchored to a heavily reinforced concrete foundation with high-strength bolts. In

Get PriceEmail Inquiry

Fire experiments of thin-walled cfrp pretensioned high ...

Sustainable precast concrete elements are emerging utilizing high-performance, self-consolidating, fibre-reinforced concrete (HPSCC) reinforced with high-strength, lightweight, and non-corroding prestressed carbon fibre reinforced polymer tendons. ... This paper gives insight in the fire behaviour of filigree CFRP prestressed HPSCC slabs and ...

Get PriceEmail Inquiry

Fiber Reinforced Polymer (FRP) ACI Guidelines and Field ...

Jul 06, 2018  CFRP AFRP GFRP. Typical Steel Rebar. 2000 MPa. 1000 MPa Linear elastic behavior to failure No yielding ... • 480 precast concrete panels (10 ft. x 23 ft.) • High Performance concrete • Panel joint filled with UHPFRC • Many partners. Halls River Bridge Replacement.

Get PriceEmail Inquiry

Debonding Performance of CFRP-Strengthened Nanomaterial ...

Apr 25, 2020  The carbon fiber reinforced polymer- (CFRP-) strengthened nanomaterial concrete beam (SNCB) has been increasingly attracting a widespread attention because of the advantages of using the excellent properties of nanomaterials to improve structural properties. An active sensing approach based on a piezoceramic transducer is developed to detect the interfacial debonding performance of CFRP-SNCB.

Get PriceEmail Inquiry

Design Examples - Transportation Research Board

Where =modulus of elasticity of prestressing CFRP (ksi) E. f. E. ct =modulus of elasticity of the concrete at transfer or time of load application (ksi)= E. ci. f. cgp =the concrete stress at the center of gravity of CFRP due to the prestressing force immediately after transfer and the self-weight of

Get PriceEmail Inquiry

Precast steel—UHPC lightweight composite bridge for ...

Apr 30, 2021  In this study, a fully precast steel—ultrahigh performance concrete (UHPC) lightweight composite bridge (LWCB) was proposed based on Mapu Bridge, aiming at accelerating construction in bridge engineering. Cast-in-place joints are generally the controlling factor of segmental structures. Therefore, an innovative girder-to-girder joint that is suitable for LWCB was developed. A specimen ...

Get PriceEmail Inquiry

Fire Behavior of Thin CFRP Pretensioned High-Strength ...

More sustainable precast concrete structural elements are emerging from the research community utilizing high-strength, self-consolidating fiber-reinforced concrete (HPSCC) reinforced with noncorroding prestressed carbon-fiber-reinforced polymer (CFRP).

Get PriceEmail Inquiry

Retrofitting the precast RC wall panels using externally ...

seismic performance of the precast reinforced concrete walls and reveal the effects of the seismic retrofit by externally bonded carbon fibre reinforced polymers laminates. The experimental program consisted of ten quasi-static cyclic tests on near-full scale precast reinforced concrete wall specimens.

Get PriceEmail Inquiry

New CarbonCast Precast Concrete Piles Reinforced with ...

Jun 03, 2014  U.S. Patent 8,677,720, “Precast concrete pile with carbon fiber reinforced grid,” describes a composite support structure with a plurality of support strands surrounded by a CFRP mesh and encapsulated by structural concrete. The support structure provides high corrosive resistance in additional to various advantages in withstanding ...

Get PriceEmail Inquiry

Template for JCI

Next, a reinforcement method for the aged concrete is demonstrated by using the high performance CFRP strips fabricated with the pultrusion method. Three kinds of concrete beams reinforced with the CFRP strips with different vertical insert positions and different numbers of the

Get PriceEmail Inquiry