The durability characteristics of high performance concrete: a review

Aïtcin, P-C

doi:10.1016/s0958-9465(02)00081-1

Cited by 332 publications

(147 citation statements)

References 3 publications

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“…When the capillary porosity decreases, a small amount of water is absorbed and saturation does not occur so easily. This gives a higher resistance to freeze-thaw cycles, and penetration of chlorides and sulphates (Dils et al 2013;Aïtcin 2003). The mean values of UHPC properties shown in Table 3 are based on papers (Smarzewski and Barnat-Hunek 2015;Barnat-Hunek and Smarzewski 2016).…”

Section: Physical and Mechanical Propertiesmentioning

confidence: 99%

Effect of Fiber Hybridization on Durability Related Properties of Ultra-High Performance Concrete

Smarzewski

Barnat-Hunek

2017

Int J Concr Struct Mater

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The purpose of the paper is to determine the influence of two widely used steel fibers and polypropylene fibers on the sulphate crystallization resistance, freeze-thaw resistance and surface wettability of ultra-high performance concrete (UHPC). Tests were carried out on cubes and cylinders of plain UHPC and fiber reinforced UHPC with varying contents ranging from 0.25 to 1% steel fibers and/or polypropylene fibers. Extensive data from the salt resistance test, frost resistance test, dynamic modulus of elasticity test before and after freezing-thawing, as well as the contact angle test were recorded and analyzed. Fiber hybridization relatively increased the resistance to salt crystallization and freeze-thaw resistance of UHPC in comparison with a single type of fiber in UHPC at the same fiber volume fraction. The experimental results indicate that hybrid fibers can significantly improve the adhesion properties and reduce the wettability of the UHPC surface.

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Section: Physical and Mechanical Propertiesmentioning

confidence: 99%

Effect of Fiber Hybridization on Durability Related Properties of Ultra-High Performance Concrete

Smarzewski

Barnat-Hunek

2017

Int J Concr Struct Mater

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“…HPC can easily achieve compressive strengths as high as 110 MPa, in contrast to the more common compressive strengths of (30)(31)(32)(33)(34)(35)(36)(37)(38)(39)(40) MPa [4]. The decreased porosity as well as disconnected pore network makes HPC quite resistant to corrosive fluid ingress and therefore extremely durable even in harsh environments [5]. Due to its lower permeability, HPC has in general good resistance to fire, although the smaller pore network may cause explosive spalling once sufficiently high temperatures are reached [6].…”

Section: Introductionmentioning

confidence: 99%

Improved Concrete Materials with Hydrogel-Based Internal Curing Agents

Krafcik

Macke

Erk

2017

Gels

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This research article will describe the design and use of polyelectrolyte hydrogel particles as internal curing agents in concrete and present new results on relevant hydrogel-ion interactions. When incorporated into concrete, hydrogel particles release their stored water to fuel the curing reaction, resulting in reduced volumetric shrinkage and cracking and thus increasing concrete service life. The hydrogel's swelling performance and mechanical properties are strongly sensitive to multivalent cations that are naturally present in concrete mixtures, including calcium and aluminum. Model poly(acrylic acid(AA)-acrylamide(AM))-based hydrogel particles with different chemical compositions (AA:AM monomer ratio) were synthesized and immersed in sodium, calcium, and aluminum salt solutions. The presence of multivalent cations resulted in decreased swelling capacity and altered swelling kinetics to the point where some hydrogel compositions displayed rapid deswelling behavior and the formation of a mechanically stiff shell. Interestingly, when incorporated into mortar, hydrogel particles reduced mixture shrinkage while encouraging the formation of specific inorganic phases (calcium hydroxide and calcium silicate hydrate) within the void space previously occupied by the swollen particle.

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“…HPC is characterized by its low water/ cementitious materials ratio and by the use of chemical and mineral admixtures to reduce permeability and increase durability (6). Various protective methods such as corrosion inhibitors, cathodic protection, epoxy and metallic coatings have also been applied to decrease steel corrosion (7).…”

Section: Introductionmentioning

confidence: 99%

Influence of cactus mucilage and marine brown algae extract on the compressive strength and durability of concrete

Hernández¹,

Cano-Barrita²,

Torres-Acosta³

2016

Mater. construcc.

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This paper presents the mechanical performance and durability of concrete with water/cement (w/c) ratios of 0.30 and 0.60 containing cactus mucilage and brown marine seaweed extract solutions (at 0.5° Brix concentrations). Cylindrical specimens (100 mm×200 mm) were cast and moist-cured for 0 and 28 days. Compressive strength, rapid chloride permeability, and chloride diffusion tests were conducted to evaluate all of the concrete mixes at the ages of 60 and 120 days. In addition, accelerated carbonation tests were carried out on specimens at the age of 180 days by exposure to 23 °C, 60% RH and at 4.4% CO 2 for 120 days. The compressive strength results showed that only one concrete mix with admixtures increased in strength compared to the control. Regarding the rapid chloride permeability, chloride diffusion and carbonation, the results indicated that the durability of concretes containing organic additions was enhanced compared to the control. RESUMEN: Influencia del mucílago de cactus y extracto de algas pardas marinas en la resistencia a compresión y durabilidad del hormigón.Este trabajo presenta el comportamiento mecánico y de durabilidad de concretos con relaciones agua/cemento de 0.30 y 0.60, conteniendo soluciones de mucílago de nopal y extracto de algas marinas cafés (0.5 °Brix de concentración). Especímenes cilíndricos (100 mm×200 mm) fueron elaborados y curados en húmedo por 0 y 28 días. Se evaluó la resistencia a la compresión, permeabilidad rápida y difusión de cloruros a los 60 y 120 días de edad. Adicionalmente, se realizaron pruebas de carbonatación acelerada en especímenes con 180 días de edad, expuestos a 23 °C, 60% HR y 4.4% de CO 2 por 120 días. Los resultados de resistencia a la compresión muestran que únicamente una mezcla de concreto con adición orgánica incrementó su resistencia con respecto al control. Con respecto a la permeabilidad rápida a cloruros, difusión de cloruros y carbonatación, los resultados indican que la durabilidad de los concretos que contenían adiciones orgánicas fue mejorada con respecto al control.

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The durability characteristics of high performance concrete: a review

Cited by 332 publications

References 3 publications

Effect of Fiber Hybridization on Durability Related Properties of Ultra-High Performance Concrete

Effect of Fiber Hybridization on Durability Related Properties of Ultra-High Performance Concrete

Improved Concrete Materials with Hydrogel-Based Internal Curing Agents

Influence of cactus mucilage and marine brown algae extract on the compressive strength and durability of concrete

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