. "12"^^ . . . . . "GA103/00/0607" . . "Celkov\u011B je mo\u017Eno hodnotit, \u017Ee pl\u00E1novan\u00E9 c\u00EDle projektu byly spln\u011Bny p\u0159edev\u0161\u00EDm d\u00EDky \u00FA\u010Dasti spolu\u0159e\u0161itel\u016F. \u00DA\u010Dast hlavn\u00EDho spolu\u0159e\u0161itele (REAT s.r.o.) nebyla na projektu dostate\u010Dn\u011B dokumentov\u00E1na. Sv\u011Bd\u010D\u00ED o tom i publika\u010Dn\u00ED \u010Dinnost, kde lze pozitivn\u011B hodnotit"@cs . "Transport sol\u00ED p\u00F3rovou strukturou betonu a podm\u00EDnky vzniku eflorescent\u016F na jeho povrchu" . "http://www.isvav.cz/projectDetail.do?rowId=GA103/00/0607"^^ . . "Z\u00E1kladn\u00EDm prvkem projektu bude sledov\u00E1n\u00ED transportu sol\u00ED v p\u00F3rov\u00E9m syst\u00E9mu cementov\u00E9ho tmelu v betonu a vztah k tvorb\u011B v\u00FDkv\u011Bt\u016F na jeho povrchu. K tomu je t\u0159eba prov\u00E9st anal\u00FDzu dosud zn\u00E1m\u00FDch transportn\u00EDch jev\u016F v por\u00E9zn\u00EDch syst\u00E9mech, v\u010Detn\u011B matematick\u00FDch model\u016F dif\u00FAze. Ke zji\u0161t\u011Bn\u00ED p\u0159\u00ED\u010Din tvorby v\u00FDkv\u011Bt\u016F bude nutno definovat teplotn\u00ED a vlhkostn\u00ED podm\u00EDnky v por\u00E9zn\u00EDm syst\u00E9mu betonu na modelov\u00FDch vzorc\u00EDch. Budou studov\u00E1ny vzorky beton\u016F z existuj\u00EDc\u00EDch konstrukc\u00ED s obsahem sol\u00ED, u nich\u017E budou provedeny chemick\u00E9a petrografick\u00E9 anal\u00FDzy a d\u00E1le vnit\u0159n\u00ED struktura cementov\u00E9ho tmelu a jej\u00ED poru\u0161en\u00ED vlivem p\u0159\u00EDtomnosti krystalizuj\u00EDc\u00EDch sol\u00ED. Pro transport roztok\u016F v p\u00F3rov\u00E9 struktu\u0159e budou definov\u00E1ny podm\u00EDnky krystalizaci sol\u00ED. Na z\u00E1klad\u011B z\u00EDskan\u00FDch v\u00FDsledk\u016F budou modifikov\u00E1ny matematick\u00E9 modely pro transportn\u00EDch jev\u016F v por\u00E9zn\u00EDch syst\u00E9mech, v\u010Detn\u011B matematick\u00FDch model\u016F dif\u00FAze. Ke zji\u0161t\u011Bn\u00ED p\u0159\u00ED\u010Din tvorby v\u00FDkv\u011Bt\u016F budou v ka\u017Ed\u00E9 f\u00E1zi zkoum\u00E1n\u00ED prov\u00E1d\u011Bny petrografick\u00E9, mineralogick\u00E9 a chemick\u00E9 rozbory. Na z\u00E1klad\u011B z\u00EDskan\u00FDc" . "0"^^ . . "Salt transport in the porous structure of concrete and conditions of efflorescence formation on its surface"@en . "Neuvedeno."@en . . . "2008-05-19+02:00"^^ . "1"^^ . . "2"^^ . . "The main objective of the submitted project is investigation of transport of salt solutions in the porous structure of concrete, definition of the conditions for efflorescence formation on its surface and the methods of efflorescence formation preventionor removal. These objectives require the fulfillment of the following requirements:Analysis of the present-day knowledge in the domain of transport effects in the porous structure of concrete and the conditions of efflorescence formation, including mathematical models of diffusion. Analysis of the existing cases of formation in close co-operation with the producers, material suppliers and implementing companies. Setting up of basic parameters of model samples of concrete, namely with regards to theporous structure of cement bonding agents and chemical and petrographic composition of cement and aggregate. Definition of conditions for the transport of salt solutions in the porous structure of concrete with regards to temperature gradient affecting"@en . . . . "12"^^ . .