Experimental Study of Durability of Reactive Powder Concretes

Roux, N.; Andrade, Carmen; Sanjuán, Miguel Ángel

doi:10.1061/(asce)0899-1561(1996)8:1(1)

Cited by 204 publications

(91 citation statements)

References 5 publications

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“…Durability Properties 6.1 Porosity and Permeability UHPC exhibits high durability properties due to a substantial decrease in the number and size of pores (Heinz and Ludwig 2004;Herold and Muller 2004). The average pore size in UHPC was found to be less than 5 nm (2 9 10 -7 in) and the pore volume ranges from 1 to 2 % of the total volume (Vernet 2004;Heinz and Ludwig 2004;Teichmann and Schmidt 2004;Herold and Muller 2004;Dowd and Dauriac 1996;Roux et al 1996). It was observed that the total porosity is mainly dependent on the heat treatment and w/b (Table 11).…”

Section: Fatigue Behaviormentioning

confidence: 92%

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Ultra-High Performance Concrete: Mechanical Performance, Durability, Sustainability and Implementation Challenges

Abbas

Nehdi

Saleem

2016

Int J Concr Struct Mater

321

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In this study, an extensive literature review has been conducted on the material characterization of UHPC and its potential for large-scale field applicability. The successful production of ultra-high performance concrete (UHPC) depends on its material ingredients and mixture proportioning, which leads to denser and relatively more homogenous particle packing. A database was compiled from various research and field studies around the world on the mechanical and durability performance of UHPC. It is shown that UHPC provides a viable and long-term solution for improved sustainable construction owing to its ultrahigh strength properties, improved fatigue behavior and very low porosity, leading to excellent resistance against aggressive environments. The literature review revealed that the curing regimes and fiber dosage are the main factors that control the mechanical and durability properties of UHPC. Currently, the applications of UHPC in construction are very limited due to its higher initial cost, lack of contractor experience and the absence of widely accepted design provisions. However, sustained research progress in producing UHPC using locally available materials under normal curing conditions should reduce its material cost. Current challenges regarding the implementation of UHPC in full-scale structures are highlighted. This study strives to assist engineers, consultants, contractors and other construction industry stakeholders to better understand the unique characteristics and capabilities of UHPC, which should demystify this resilient and sustainable construction material.

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Section: Fatigue Behaviormentioning

confidence: 92%

“…Furthermore, the application of pressure also reduced the overall porosity by removing the entrapped air and additional water (Richard and Cheyrezy 1995;Bonneau et al 1997). For instance, Roux et al (1996) observed 50 % reduction in porosity upon the application of pressure during the initial setting time.…”

Section: Fatigue Behaviormentioning

confidence: 99%

Ultra-High Performance Concrete: Mechanical Performance, Durability, Sustainability and Implementation Challenges

Abbas

Nehdi

Saleem

2016

Int J Concr Struct Mater

321

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“…Ming-Ju Lee, Ming-Gin Lee, Yishuo Huang, and Kun-Long Lee ductility: the ductility is 250 times greater than that of conventional concrete [5]- [7]. The material's extremely low porosity gives its low permeability and high durability, making it potentially suitable for retrofitting reinforced concrete structures or for use as a new construction material and precast product [8].…”

Section: Uhpc Precast Concrete Under Severe Freeze-thaw Conditionsmentioning

confidence: 99%

UHPC Precast Concrete under Severe Freeze-Thaw Conditions

Lee¹,

Lee²,

Huang³

et al. 2013

IJET

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Abstract-In this study, ultra high performance concrete (UHPC) was used to investigate the effect of UHPC and its precast product by the severe freeze-thaw testing. The UHPC to be used as a precast product material contains a large amount of cement and cementitious materials, a large amount of superplasticizer, and a very small amount of water. The UHPC mixes with eight different volumes of steel fibres were tested and evaluated to find the optimum quality of precast production. The results show that the mechanical properties of UHPC possess high strength, ductility, and bond stress. The results also indicate that most of UHPC specimens presented a steady decrease in compressive and flexural strength after freeze-thaw testing. The 2.5, 3.0 and 3.5% steel fibres by volume were chosen and used in UHPC precast products, after UHPC specimens were tested and finished on their performance evaluations. The results show that the loading capacity of UHPC precast products increased significantly after 600 free-thaw cycles. As a result of freeze-thaw resistance, the appropriate mixes of UHPC applied in the precast products have been obtained; it would provide a reference manufacturing for the UHPC products.Index Terms-UHPC, freeze-thaw, precast product, ultra high performance concrete.

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“…A typical UHPC mix contains portland cement, silica fume (SF), quartz powder (QP), quartz sand (QS) with a maximum size of 600 µm (1/42˝), and possibly steel fiber Cheyrezy, 1994 and1995;de Larrard and Sedran, 1994;Roux et al, 1996;Schmidt and Fehling, 2005;Lee et al, 2005). Such typical mixes have a very low water-to-binder ratio (w/b) and high superplasticizer contents.…”

Section: Introductionmentioning

confidence: 99%

Green Ultra-High-Performance Glass Concrete

Tagnit-Hamou

Soliman

Omran

2016

First International Interactive Symposium on UHPC

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Abstract:This paper presents research work on the development of a green type of ultra-high-performance concrete at the University of Sherbrooke using ground glass powders with different degrees of fineness (UHPGC). In UHPGC, glass is used to replace quartz sand, cement, quartz powder, and silica-fume particles. UHPGC design is based on particle packing density, mechanical properties, and specific rheology. Mixes are designed to suit the rheology and mechanical performances of different concrete applications. Depending on composition and curing conditions, UHPGC can provide improved rheology (mini-slump spread of 260 mm), higher mechanical properties (compressive strength greater than 200 MPa, flexural strength more than 25 MPa). A case study of using this UHPGC is presented through the design and construction of a footbridge.

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Experimental Study of Durability of Reactive Powder Concretes

Cited by 204 publications

References 5 publications

Ultra-High Performance Concrete: Mechanical Performance, Durability, Sustainability and Implementation Challenges

Ultra-High Performance Concrete: Mechanical Performance, Durability, Sustainability and Implementation Challenges

UHPC Precast Concrete under Severe Freeze-Thaw Conditions

Green Ultra-High-Performance Glass Concrete

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