Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
A new chemo-mechanical model of damage in concrete under sulfate attack
https://orcid.org/0000-0003-4189-4728
Graphical abstractThe characteristic time tp related chemical reaction rate approximately is the inflection point of damage evolution.
HighlightsDamage evolution in concrete under sulfate attack is derived considering chemical reaction rate.The characteristic time of chemical reaction represents inflection point of damage evolution.Damage nucleation is due to tensile failure at the surface of pores by delayed ettringite.
AbstractDamage evolution is detected via the degradation of modulus of concrete immersed in sulfate solution. The mechanism of the damage is investigated by using SEM method, and it is proved that the internal expansion stress induced by delayed ettringite leads to the nucleation of micro-cracks. The criterion of damage nucleation is proposed in terms of the tension strength of concrete. The differential equation with respect to the internal expansion stress is derived by virtue of chemical reaction rate on delayed ettringite formation, and a new chemo-mechanical model of corrosion damage in concrete under sulfate attack is then proposed.
A new chemo-mechanical model of damage in concrete under sulfate attack
https://orcid.org/0000-0003-4189-4728
Graphical abstractThe characteristic time tp related chemical reaction rate approximately is the inflection point of damage evolution.
HighlightsDamage evolution in concrete under sulfate attack is derived considering chemical reaction rate.The characteristic time of chemical reaction represents inflection point of damage evolution.Damage nucleation is due to tensile failure at the surface of pores by delayed ettringite.
AbstractDamage evolution is detected via the degradation of modulus of concrete immersed in sulfate solution. The mechanism of the damage is investigated by using SEM method, and it is proved that the internal expansion stress induced by delayed ettringite leads to the nucleation of micro-cracks. The criterion of damage nucleation is proposed in terms of the tension strength of concrete. The differential equation with respect to the internal expansion stress is derived by virtue of chemical reaction rate on delayed ettringite formation, and a new chemo-mechanical model of corrosion damage in concrete under sulfate attack is then proposed.
A new chemo-mechanical model of damage in concrete under sulfate attack
https://orcid.org/0000-0003-4189-4728
Graphical abstractThe characteristic time tp related chemical reaction rate approximately is the inflection point of damage evolution.
HighlightsDamage evolution in concrete under sulfate attack is derived considering chemical reaction rate.The characteristic time of chemical reaction represents inflection point of damage evolution.Damage nucleation is due to tensile failure at the surface of pores by delayed ettringite.
AbstractDamage evolution is detected via the degradation of modulus of concrete immersed in sulfate solution. The mechanism of the damage is investigated by using SEM method, and it is proved that the internal expansion stress induced by delayed ettringite leads to the nucleation of micro-cracks. The criterion of damage nucleation is proposed in terms of the tension strength of concrete. The differential equation with respect to the internal expansion stress is derived by virtue of chemical reaction rate on delayed ettringite formation, and a new chemo-mechanical model of corrosion damage in concrete under sulfate attack is then proposed.
A new chemo-mechanical model of damage in concrete under sulfate attack
Chen, Jian-kang (Autor:in) / Qian, Chen (Autor:in) / Song, Hui (Autor:in)
Construction and Building Materials ; 115 ; 536-543
19.04.2016
8 pages
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
A new chemo-mechanical model of damage in concrete under sulfate attack
| British Library Online Contents | 2016
A new chemo-mechanical model of damage in concrete under sulfate attack
| Online Contents | 2016
A new chemo-mechanical model of damage in concrete under sulfate attack
| British Library Online Contents | 2016
A new chemo-mechanical model of damage in concrete under sulfate attack
| British Library Online Contents | 2016