. . "26110" . "Factors affecting the resistance of cementitious materials at high temperatures and medium heating rates." . "[4EE52B794034]" . "Matesov\u00E1, Dita" . . "P(1K04111)" . "P\u0159\u00EDsp\u011Bvek se zab\u00FDv\u00E1 faktory ovliv\u0148uj\u00EDc\u00ED odolnost cementov\u00FDch materi\u00E1l\u016F p\u0159i vysok\u00FDch teplot\u00E1ch a st\u0159edn\u00EDch rychlostech n\u00E1r\u016Fstu teploty."@cs . . "475471" . . "The resistance of mortars made of dolomite and quartz aggregate with and without polypropylene fibers has been studied at a nominal heating rate of 30C/min from room temperature up to 1000C. It is demonstrated that the key parameters that affect the performance of plain mortars are volume instability, phase transformation, aggregate dissociation, and permeability. Experimental results point at the major role of aggregate type on mass loss, porosity, volume instability, microstructure, cracking pattern, and mechanical properties. Three thermal zones are identified; low (up to about 300C), intermediate (about 300 to 600C), and high (>600C). It is shown that in the low thermal zone, the mechanical properties are about the same or better than those at room temperature. The intermediate thermal zone is characterized by a moderate decline of mechanical properties, whereas a rapid decline is registered in the high thermal zone. Explosive spalling due to pressure built-up of volatiles took place at temperatur" . "US - Spojen\u00E9 st\u00E1ty americk\u00E9" . "1"^^ . . "Faktory ovliv\u0148uj\u00EDc\u00ED odolnost cementov\u00FDch materi\u00E1l\u016F p\u0159i vysok\u00FDch teplot\u00E1ch a st\u0159edn\u00EDch rychlostech n\u00E1r\u016Fstu teploty."@cs . "5" . . "1359-5997" . "Factors affecting the resistance of cementitious materials at high temperatures and medium heating rates." . . . "The resistance of mortars made of dolomite and quartz aggregate with and without polypropylene fibers has been studied at a nominal heating rate of 30C/min from room temperature up to 1000C. It is demonstrated that the key parameters that affect the performance of plain mortars are volume instability, phase transformation, aggregate dissociation, and permeability. Experimental results point at the major role of aggregate type on mass loss, porosity, volume instability, microstructure, cracking pattern, and mechanical properties. Three thermal zones are identified; low (up to about 300C), intermediate (about 300 to 600C), and high (>600C). It is shown that in the low thermal zone, the mechanical properties are about the same or better than those at room temperature. The intermediate thermal zone is characterized by a moderate decline of mechanical properties, whereas a rapid decline is registered in the high thermal zone. Explosive spalling due to pressure built-up of volatiles took place at temperatur"@en . "3"^^ . "39" . "Bonen, David" . . . "RIV/00216305:26110/06:PU65851" . . "15"^^ . "High temperatures, mechanical properties"@en . "RIV/00216305:26110/06:PU65851!RIV07-MSM-26110___" . "Faktory ovliv\u0148uj\u00EDc\u00ED odolnost cementov\u00FDch materi\u00E1l\u016F p\u0159i vysok\u00FDch teplot\u00E1ch a st\u0159edn\u00EDch rychlostech n\u00E1r\u016Fstu teploty."@cs . . . "455-469" . "Factors affecting the resistance of cementitious materials at high temperatures and medium heating rates."@en . "Materials and Structures" . "Factors affecting the resistance of cementitious materials at high temperatures and medium heating rates."@en . "Shah, Surendra P." .