Self-healing of mechanically-loaded self consolidating concretes with high volumes of fly ash

Şahmaran, Mustafa; Keskin, Süleyman Bahadır; Ozerkan, Gozde; Yaman, İsmail Özgür

doi:10.1016/j.cemconcomp.2008.07.001

Cited by 196 publications

(57 citation statements)

References 18 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…contents, low water-to-binder ratios, etc. In literature, a range of possibilities of total healing can be 8 found, ranging from a few tens µm (Jacobsen, 1995;Şahmaran, 2008b), to 100 µm (Reinhardt and Jooss, 2003) and even 300 µm (Clear, 1985;Edvardsen, 1999). This healing also depends on the 10 total allowed time of healing and its conditions.…”

mentioning

confidence: 99%

Experimental characterization of the self-healing capacity of cement based materials and its effects on the material performance: A state of the art report by COST Action SARCOS WG2

Ferrara

Mullem

Alonso

et al. 2018

Construction and Building Materials

199

129

View full text Add to dashboard Cite

mentioning

confidence: 99%

Experimental characterization of the self-healing capacity of cement based materials and its effects on the material performance: A state of the art report by COST Action SARCOS WG2

Ferrara

Mullem

Alonso

et al. 2018

Construction and Building Materials

199

129

View full text Add to dashboard Cite

“…Furthermore, it was observed that recovery of many mechanical related properties was possible after water immersion, e.g. the stiffness of pre-cracked specimens (49) and the compressive strength of pre-damaged cylindrical specimens (50). The self-healing observed from these investigations was associated with continued hydration of the unhydrated cement in cementitious mate rials.…”

Section: Mechanical Property Recoverymentioning

confidence: 81%

“…Based on experimental results, S ‚ ahmaran (39) proposed that microcracks of ECC can be easily closed by autogenous healing process even after exposure for 30 days to NaCl solution. The observed autogenous healing in ECC added fly ash can be attributed primarily to the large fly ash content and the relatively low water to binder ratio within the ECC mixture (39,50,(66)(67)(68). Both transport properties, permeability, and chloride diffusion, showed a decrease over time not only due to the tight crack width but also the presence of self-healing of the micro-cracks.…”

Section: Self-healing Of Fiber Reinforced Cementitious Compositementioning

confidence: 97%

Overview of recent work on self-healing in cementitious materials

Lv¹,

Chen²

2014

Mater. construcc.

View full text Add to dashboard Cite

ABSTRACT:Cracks, especially microcracks, in concrete are of paramount importance to the durability and the service life of cementitious composite. However, the self-healing technology, including autogenous healing and autonomous healing, is expected to be one of effective tools to overcome this boring problem. In this paper, we focus on the autogenous healing of concrete material and a few of recent works of autonomous healing are also mentioned. The durability and the mechanical properties improved by the self-healing phenomenon are reviewed from experimental investigation and practical experience. Several aspects of researches, such as autogenous healing capability of an innovative concrete incorporated geo-materials, self-healing of engineered cementitious composite and fire-damaged concrete, effect of mineral and admixtures on mechanism and efficiency of self-healing concrete are summarized to evaluate the presented progresses in the past several years and to outline the perspective for the further developments. Moreover, a special emphasis is given on the analytical models and computer simulation method of the researches of self-healing in cementitious materials. RESUMEN: Panorámica de trabajos recientes sobre materiales cementantes autorreparables.Las fisuras, y sobre todo las microfisuras, tienen una gran repercusión en la durabilidad y en la vida útil de los materiales cementantes. Ante este problema, la tecnología de la autorreparación, tanto autógena como autónoma, se presenta como una solución eficaz. El artículo se centra en la reparación autógena del hormigón, así como en algunos trabajos recientes sobre la reparación autónoma. Se describen las mejoras de las propiedades de durabilidad y de resistencia que proporciona la técnica del hormigón autorreparable, tanto desde el punto de vista de la investigación experimental como del de la experiencia práctica. A fin de evaluar los avances logrados en los últimos años y de trazar las grandes líneas de desarrollo futuro, se resumen varios de los aspectos investigados: capacidad de reparación de un hormigón innovador que incorpora geomateriales; autorreparabilidad tanto de los compuestos cementantes tecnológicos como de los hormigones que han sufrido daños por incendio; influencia de los aditivos minerales en el mecanismo y eficacia del hormigón autorreparable. Además, se destaca el papel de los modelos analíticos y los métodos de simulación informática en la investigación de los materiales cementantes autorreparables.

show abstract

“…For instance, calcium carbonate is formed or further hydration takes place if there is some water in the crack. As a result, the durability of concrete could be improved due to the self-healing of the cracks [3] .…”

Section: Introductionmentioning

confidence: 99%

Numerical simulation on moisture transport in cracked cement-based materials in view of self-healing of crack

Huang

2010

J. Wuhan Univ. Technol.-Mat. Sci. Edit.

View full text Add to dashboard Cite

The moisture transport in cracked cement-based materials was investigated with priority by numerical simulation. The cracked cement-basis material was treated as two components system, including the cracks and cementitious mortar. The mass balance between the water in the cracks and in the cement mortar was considered. From the modeling results, it was seen that the water or vapor filled the crack immediately when the cracked cementitious mortar was put into contact with the water or vapor. The water/vapor penetrates into the mortar from the crack surfaces, as well as the external surface exposed in the outside condition. The existence of cracks increases the penetration of water/vapor into the cementitious mortar. As the basis for studying the self-healing in cracked concrete, the simulation on moisture transport provided important information about the water distribution and movement inside the cracked concrete.

show abstract

Self-healing of mechanically-loaded self consolidating concretes with high volumes of fly ash

Cited by 196 publications

References 18 publications

Experimental characterization of the self-healing capacity of cement based materials and its effects on the material performance: A state of the art report by COST Action SARCOS WG2

Experimental characterization of the self-healing capacity of cement based materials and its effects on the material performance: A state of the art report by COST Action SARCOS WG2

Overview of recent work on self-healing in cementitious materials

Numerical simulation on moisture transport in cracked cement-based materials in view of self-healing of crack

Contact Info

Product

Resources

About