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Load-Carrying Performance and Hydrostatic Tests of Encapsulated Anchor Systems for Unbonded Post-Tensioning Single-Strands

Single-Strands Ah Sir Cho 0 Thomas H.-K. Kang 0 0 Department of Architecture & Architectural Engineering, Seoul National University , Seoul , South Korea ACI 318-14 and 423.7-14 require the use of

Axial Load Testing of Hybrid Concrete Columns Consisting of UHPFRC Tube and Normal-Strength Concrete Core

Xiangguo Wu Thomas H.-K. Kang Issa Brown Mpalla Chang-Soo Kim To investigate the axial load behavior of hybrid concrete columns consisting of an ultra-high performance fiberreinforced concrete tube (20 mm

Hybrid Effects of Carbon-Glass FRP Sheets in Combination with or without Concrete Beams

Thomas H.-K. Kang Woosuk Kim Sang-Su Ha Dong-Uk Choi The use of carbon fibers (CF) and glass fibers (GF) were combined to strengthen concrete flexural members. In this study, data of tensile tests

Recycled Concrete Aggregates: A Review

This paper discusses the properties of RCA, the effects of RCA use on concrete material properties, and the large scale impact of RCA on structural members. The review study yielded the following findings in regards to concrete material properties: (1) replacing NA in concrete with RCA decreases the compressive strength, but yields comparable splitting tensile strength; (2) the...

Post-Damage Repair of Prestressed Concrete Girders

Chris Ramseyer Thomas H.-K. Kang Concrete is an economical construction material and for that reason it is widely used in buildings and infrastructures. The use of deicing salts, expansion joint

A State-of-the-Art Review on Debonding Failures of FRP Laminates Externally Adhered to Concrete

There is significant concern in the engineering community regarding the safety and effectiveness of fiber-reinforced polymer (FRP) strengthening of RC structures because of the potential for brittle debonding failures. In this paper, previous research programs conducted by other researchers were reviewed in terms of the debonding failure of FRP laminates externally attached to...

Shear-strengthening of reinforced & prestressed concrete beams using FRP: Part I — Review of previous research

Moustapha Ibrahim Ary Thomas H.-K. Kang Fiber-Reinforced Polymers (FRP) are used to enhance the behavior of structural components in either shear or flexure. The research conducted in this paper

Shear-strengthening of reinforced & prestressed concrete beams using FRP: Part II — Experimental investigation

Thomas H.-K. Kang Moustapha Ibrahim The main objectives of this research were to experimentally evaluate the impact of Carbon Fiber-Reinforced Polymers (CFRP) amount and strip spacing on the shear

Pore Structure of Calcium Sulfoaluminate Paste and Durability of Concrete in Freeze–Thaw Environment

Bruyn Eric Bescher Chris Ramseyer Seongwon Hong Thomas H.-K. Kang Mercury intrusion and nitrogen sorption porosimetry were employed to investigate the pore structure of calcium sulfoaluminate (CSA) and

Shear Deformation of Steel Fiber-Reinforced Prestressed Concrete Beams

Kang Su Kim Thomas H.-K. Kang Zuanfeng Pan Steel fiber-reinforced prestressed concrete (SFRPSC) members typically have high shear strength and deformation capability, compared to conventional