Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Water behaviour in limestones as a function of pores structure: Application to frost resistance of some Lorraine limestones
Abstract The frost resistance of limestones is determined by their ability to withstand damage caused by water freezing in microscopic pores. The factors which limit frost action are connected with the saturation state of the material and the distribution of water in the porous media. The behaviour of fluid in some limestones from the Lorraine area of northeast France was studied in laboratory experiments. Carbonate grainstones with bimodal porous networks have high values of air-trapped porosities and permeabilities, and their degree of saturation, resulting from capillary absorption or total immersion, is restricted to 60%. For these materials, the predictive frost resistance is high. The result of frost action on limestones with unimodal porous networks depends on the rock texture (mudstone to packstone, more or less well-cemented), the influence of parameters such as pore radius, pore shape, permeability, and the strains developed during freezing. These relations are confirmed byin situ observations and by experiments with frost in a climatic cabinet.
Water behaviour in limestones as a function of pores structure: Application to frost resistance of some Lorraine limestones
Abstract The frost resistance of limestones is determined by their ability to withstand damage caused by water freezing in microscopic pores. The factors which limit frost action are connected with the saturation state of the material and the distribution of water in the porous media. The behaviour of fluid in some limestones from the Lorraine area of northeast France was studied in laboratory experiments. Carbonate grainstones with bimodal porous networks have high values of air-trapped porosities and permeabilities, and their degree of saturation, resulting from capillary absorption or total immersion, is restricted to 60%. For these materials, the predictive frost resistance is high. The result of frost action on limestones with unimodal porous networks depends on the rock texture (mudstone to packstone, more or less well-cemented), the influence of parameters such as pore radius, pore shape, permeability, and the strains developed during freezing. These relations are confirmed byin situ observations and by experiments with frost in a climatic cabinet.
Water behaviour in limestones as a function of pores structure: Application to frost resistance of some Lorraine limestones
Bellanger, M. (Autor:in) / Homand, F. (Autor:in) / Remy, J.M. (Autor:in)
Engineering Geology ; 36 ; 99-108
03.06.1993
10 pages
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
| British Library Online Contents | 1993
Water Retention Characteristics of Two Limestones
| British Library Conference Proceedings | 2006
| Engineering Index Backfile | 1942