"2015-05-28+02:00"^^ . . "Fyzik\u00E1ln\u00ED a chemick\u00E9 faktory ovliv\u0148uj\u00EDc\u00ED mechanick\u00E9, tepeln\u00E9, vlhkostn\u00ED a trvanlivostn\u00ED vlastnosti kompozitn\u00EDch materi\u00E1l\u016F na b\u00E1zi sm\u011Bsn\u00FDch cement\u016F s kalcinovan\u00FDmi j\u00EDly" . "0"^^ . "1"^^ . "7AMB15AR015" . "0"^^ . "0"^^ . . . " cementitious composites" . "http://www.isvav.cz/projectDetail.do?rowId=7AMB15AR015"^^ . "Physical and chemical factors affecting the mechanical, hygrothermal and durability properties of composite materials produced using Portland cement-calcined clay blends"@en . "0"^^ . . " durability" . " mechanical resistivity" . . "calcined clays" . . "calcined clays; cementitious composites; pozzolanic admixtures; durability; mechanical resistivity; salt action"@en . " pozzolanic admixtures" . . "2015-01-01+01:00"^^ . . . . . . . . . . . "C\u00EDlem projektu je studium vyu\u017Eitelnosti p\u0159\u00EDrodn\u00EDch kalcinovan\u00FDch j\u00EDl\u016F ve slo\u017Een\u00ED cementov\u00FDch kompozitn\u00EDch materi\u00E1l\u016F. D\u016Fraz je kladen na trvanlivost a mechanickou odolnost nov\u011B navr\u017Een\u00FDch kompozit\u016F. V r\u00E1mci \u0159e\u0161en\u00ED projektu bude provedena podrobn\u00E1 fyzik\u00E1ln\u00ED, chemick\u00E1 a mineralogick\u00E1 anal\u00FDza \u0159ady j\u00EDlov\u00FDch zemin a miner\u00E1l\u016F, kter\u00E1 umo\u017En\u00ED stanovit jejich potenci\u00E1l pro aplikaci jako pucol\u00E1nov\u00E9 slo\u017Eky sm\u011Bsn\u00E9ho pojiva cementov\u00FDch kompozit\u016F. Vybran\u00E9 p\u0159\u00EDrodn\u00ED j\u00EDly budou po tepeln\u00E9 \u00FAprav\u011B (kalcinaci) a n\u00E1sledn\u00E9m mlet\u00ED pou\u017Eity pro n\u00E1vrh nov\u00FDch kompozitn\u00EDch sm\u011Bs\u00ED, kde \u010D\u00E1ste\u010Dn\u011B nahrad\u00ED \u010D\u00E1st portlandsk\u00E9ho cementu. \u0158e\u0161en\u00ED projektu umo\u017En\u00ED \u0161ir\u0161\u00ED vyu\u017Eit\u00ED kalcinovan\u00FDch j\u00EDl\u016F p\u0159i v\u00FDrob\u011B stavebn\u00EDch materi\u00E1l\u016F, p\u0159i\u010Dem\u017E je evidentn\u00ED, \u017Ee v\u00FDroba t\u011Bchto pucol\u00E1nov\u011B aktivn\u00EDch materi\u00E1l\u016F m\u00E9n\u011B zat\u011B\u017Euje \u017Eivotn\u00ED prost\u0159ed\u00ED a je tak\u00E9 levn\u011Bj\u0161\u00ED v porovn\u00E1n\u00ED s v\u00FDrobou portlandsk\u00E9ho sl\u00EDnku, kter\u00E1 je energeticky a surovinov\u011B velmi n\u00E1ro\u010Dn\u00E1 a p\u0159i kter\u00E9 doch\u00E1z\u00ED k emisi velk\u00E9ho mno\u017Estv\u00ED CO2. Aby bylo mo\u017En\u00E9 doc\u00EDlit hlavn\u00EDho c\u00EDle projektu, kter\u00FD umo\u017En\u00ED aplikovatelnost kalcinovan\u00FDch j\u00EDlov\u00FDch miner\u00E1l\u016F v produkci stavebn\u00EDch materi\u00E1l\u016F, bude nezbytn\u00E9 splnit \u0159adu d\u00EDl\u010D\u00EDch c\u00EDl\u016F, kter\u00E9 jsou n\u00E1sleduj\u00EDc\u00ED: fyzik\u00E1ln\u00ED, chemick\u00E1 a mineralogick\u00E1 charakterizace j\u00EDlov\u00E1ch miner\u00E1l\u016F a zemin; kalcinace j\u00EDl\u016F a anal\u00FDza tepeln\u011B upraven\u00FDch materi\u00E1l\u016F v\u010Detn\u011B studia pucol\u00E1nov\u00E9 aktivity; n\u00E1vrh a p\u0159\u00EDprava kompozitn\u00EDch sm\u011Bs\u00ED \u2013 identifikace optim\u00E1ln\u00EDho pom\u011Bru jemn\u011B mlet\u00FDch kalcinovan\u00FDch j\u00EDl\u016F a portlandsk\u00E9ho cementu ve sm\u011Bsn\u00E9m pojivu, optimalizace vodn\u00EDho sou\u010Dinitele; stanoven\u00ED \u010Dasov\u011B z\u00E1visl\u00FDch mechanick\u00FDch parametr\u016F; studium v\u00FDvoje por\u00E9zn\u00ED struktury kompozitn\u00EDch materi\u00E1l\u016F a stanoven\u00ED pevnostn\u00EDho indexu pucol\u00E1nov\u00E9 aktivity; stanoven\u00ED z\u00E1kladn\u00EDch fyzik\u00E1ln\u00EDch, vlhkostn\u00EDch a termo-fyzik\u00E1ln\u00EDch vlastnost\u00ED vyzr\u00E1l\u00FDch kompozit\u016F; studium trvanlivosti; stanoven\u00ED fyzik\u00E1ln\u00EDch a chemick\u00FDch faktor\u016F ovliv\u0148uj\u00EDc\u00EDch vyu\u017Eit\u00ED jemn\u011B mlet\u00FDch kalcinovan\u00FDch j\u00EDl\u016F jako p\u0159\u00EDrodn\u00ED prost\u0159ed\u00ED m\u00E9n\u011B zat\u011B\u017Euj\u00EDc\u00ED \u010D\u00E1ste\u010Dn\u00E9 n\u00E1hrady cementov\u00E9 pojiva ve slo\u017Een\u00ED kompozitn\u00EDch materi\u00E1l\u016F." . . "2016-12-31+01:00"^^ . . "The main aim of the project is to examine possible application of several types of natural calcined clays in composition of cementitious composites, whereas the specific attention is paid to the durability and mechanical resistivity of the newly designed composite materials. The project solution will provide complex analysis of physical, chemical and mineralogical characteristics of several types natural clays whose composition will reveal their possibility for application as pozzolanic admixture in blended binder of cement based composites. The chosen natural clays will be after thermal treatment (calcination) and milling used in composites mix design, where will replace part of Portland cement. The project solution will make possible wider application of calcined clays in production of building materials, whereas these materials are more environmental-friendly and less expensive compared to cement the clinker whose production negatively affect environment due to the high energy requirements and CO2 production. To achieve main aim of the project, there is necessary to fulfil several tasks, nominally: physical, chemical and mineralogical characterization of natural clays; thermal treatment of clays and characterization of thermally treated materials including pozzolanic activity testing; design and preparation of composites mixtures \u2013 identification of optimal proportion of calcined clay powder and Portland cement, optimization of water/binder ratio; determination of time dependent mechanical properties; monitoring of porosity development and assessment of strength activity index; determination of basic physical properties, hygric and thermophysical properties of hardened composites; durability testing of developed composites; assessment of chemical and physical factors affecting usage fine-ground calcined clays as environmental-friendly supplementary cementitious materials in cement-based composites."@en .