Journal ArticleDOI
Mechanical and permeability properties of the interface between normal concrete substrate and ultra high performance fiber concrete overlay
TLDR
In this paper, the authors examined experimentally the mechanical properties and permeability characteristics of the interface between normal concrete (NC) substrate which represents old concrete structures and an overlay of ultra high performance fiber concrete (UHPFC) as a repair material.About:
This article is published in Construction and Building Materials.The article was published on 2012-11-01. It has received 290 citations till now.read more
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Mix design and properties assessment of Ultra-High-Performance Fibre Reinforced Concrete (UHPFRC)
TL;DR: In this article, the authors addressed the mix design and properties assessment of Ultra-High Performance Fibre Reinforced Concrete (UHPFRC) by employing the modified Andreasen & Andersen particle packing model.
Journal ArticleDOI
Development of an eco-friendly Ultra-High Performance Concrete (UHPC) with efficient cement and mineral admixtures uses
TL;DR: In this paper, a modified Andreasen & Andersen particle packing model is used to achieve a densely compacted cementitious matrix, and the results show that the influence of FA, ground granulated blast-furnace slag (GGBS) and limestone powder (LP) on the early hydration kinetics of UHPC is very similar during the initial five days, while the hydration rate of the blends with GGBS is mostly accelerated afterwards.
Journal ArticleDOI
High-performance fiber-reinforced concrete: a review
TL;DR: In this article, the authors present a comprehensive review of the mechanism of crack formation and propagation, compressive strength, modulus of elasticity, stress-strain behavior, tensile strength (TS), flexural strength, drying shrinkage, creep, electrical resistance, and chloride migration resistance of high performance fiber reinforced concrete.
Journal ArticleDOI
Effects of layer-interface properties on mechanical performance of concrete elements produced by extrusion-based 3D-printing
TL;DR: In this paper, the authors investigated the influence of binder composition and time interval between layers on layer-interface strength in 3D-printable cement-based compositions (3PCs).
Journal ArticleDOI
Durability of ultra-high performance concrete – A review
TL;DR: In this paper, a comprehensive investigation of the durability characteristics of UHPC is provided to provide fundamental information for material testing requirements and procedures and expand its practical applications, which can serve as a potential candidate for concrete structures exposing to aggressive environments.
References
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Journal ArticleDOI
Comparison of Methods for Evaluating Bond Strength Between Concrete Substrate and Repair Materials
TL;DR: In this article, the effect of test methods on bond strength between concrete substrate and repair material was investigated, and four test methods with cementitious or modified-cementitious repair materials, and two surface roughnesses were studied.
Journal ArticleDOI
Influence of supplementary cementitious materials on engineering properties of high strength concrete
TL;DR: In this paper, the influence of supplementary cementitious materials (SCMs), namely silica fume, metakaolin, fly ash and ground granulated blast-furnace slag, on the engineering properties of high strength concrete (HSC) has been investigated in order to quantify the effects of different materials.
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Concrete-to-concrete bond strength. influence of the roughness of the substrate surface
TL;DR: In this article, an experimental study was performed to evaluate the bond strength between two concrete layers, for different techniques for increasing the roughness of the substrate surface, including wire-brushing, sand-blasting, chipping with a light jackhammer; or were left as-cast against steel formwork.
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Engineering and transport properties of high-strength green concrete containing high volume of ultrafine palm oil fuel ash
TL;DR: In this paper, the engineering and transport properties of high-strength green concrete (HSGC) containing up to 60% of ultrafine palm oil fuel ash (POFA) have been studied.
Journal ArticleDOI
The influence of microfillers on enhancement of concrete strength
A. Goldman,Arnon Bentur +1 more
TL;DR: In this paper, carbon black was introduced as an alternative microfiller to silica fume, which was found to be effective in modifying the basic concrete-matrix strength relationship.