Experimental evaluation of concrete-to-UHPC bond strength with correlation to surface roughness for repair application

A Valikhani, AJ Jahromi, IM Mantawy… - … and Building Materials, 2020 - Elsevier
Exposing bridge elements to severe environmental conditions causes a reduction in service
life and durability which demands repair or total replacement. Different strategies for repair …

Review of the interfacial bonding properties between ultrahigh-performance concrete and normal concrete

L Xu, Y Yao, Y Li, J Su, Y Wu - Applied Sciences, 2023 - mdpi.com
As a high-quality building material exhibiting excellent toughness and durability, ultrahigh-
performance concrete (UHPC) is increasingly being used in the construction industry and as …

Shear behaviour of composite beams with permanent UHPC formwork and high-strength steel rebar

P Zhang, F Xu, Y Liu, SA Sheikh - Construction and Building Materials, 2022 - Elsevier
This study investigated the shear behaviour of ultrahigh-performance concrete (UHPC)-
normal concrete (NC) composite beams reinforced by high-strength rebar. In the proposed …

Prediction and uncertainty quantification of ultimate bond strength between UHPC and reinforcing steel bar using a hybrid machine learning approach

AIB Farouk, J Zhu, J Ding, SI Haruna - Construction and Building Materials, 2022 - Elsevier
The composite action of the reinforcing bars in the UHPC involves complex and nonlinear
mechanisms. Inadequate knowledge of their interaction may lead to insufficient bond …

Chloride-induced corrosion of steel fiber near the surface of ultra-high performance concrete and its effect on flexural behavior with various thickness

S Pyo, T Koh, M Tafesse, HK Kim - Construction and Building Materials, 2019 - Elsevier
The results of experimental investigation of ultra-high performance concrete (UHPC) by
evaluating the flexural response are presented in order to qualitatively evaluate the effects of …

Effect of mechanical connectors on interface shear strength between concrete substrates and UHPC: Experimental and numerical studies and proposed design …

A Valikhani, AJ Jahromi, IM Mantawy… - … and Building Materials, 2021 - Elsevier
Composite concrete sections are used in new construction such as bridge deck overlay or in
repairing and retrofitting existing concrete elements in buildings and bridges. One important …

Experimental and numerical investigation on the seismic performance of concrete-filled UHPC tubular columns

H Tian, Z Zhou, Y Wei, L Zhang - Journal of Building Engineering, 2021 - Elsevier
This paper presents an experimental and numerical investigation on a novel composite
column, ie, concrete-filled ultra-high performance concrete (UHPC) tubular (CFUT) column …

Experimental research on the flexural behavior of GFRP bar-reinforced composite beams with different shapes of prefabricated UHPC formwork

JQ Shang, Y Su, JJ Fan, P Zhang, SA Sheikh - Journal of Building …, 2024 - Elsevier
In this paper, the flexural behavior of eight composite beam with prefabricated permanent
ultrahigh-performance concrete (UHPC) formwork and reinforced with glass fiber reinforced …

A theoretical analysis of mechanical and durability enhancement of circular reinforced concrete columns repaired with UHPC

M Farzad, A Sadeghnejad, S Rastkar… - Engineering …, 2020 - Elsevier
Ultra-high performance concrete (UHPC) has been promoted as a strong, durable
construction material which can provide a barrier to corrosion due to its low permeability …

Seismic performance and cost analysis of UHPC tall buildings in UAE with ductile coupled shear walls

M AlHamaydeh, M Elkafrawy, S Banu - Materials, 2022 - mdpi.com
The superior mechanical characteristics of ultra-high-performance concrete (UHPC) have
attracted the interest of many researchers worldwide. Researchers have attempted to …