"The paper presents the calibration relations for the evaluation of HSC using the Schmidt rebound hammer type N/L and compared with the calibration equations for normal-weight concrete specified in CSN 731373 and CSN EN 13791. Processed calibration relationships for HSC are practically useful, but only for concretes with coarse crushed rock from the parent rock with the strength of 160-200 MPa. The use of standard relationships is problematic because underestimate the strength of HSC 14 to 22MPa."@en . "V \u010Dl\u00E1nku jsou uvedeny kalibra\u010Dn\u00ED vztahy pro hodnocen\u00ED HSC pomoc\u00ED Schmidtov\u00FDch tvr-dom\u011Br\u016F typu N a L a porovn\u00E1n\u00ED s kalibra\u010Dn\u00EDmi vztahy pro oby\u010Dejn\u00E9 betony uveden\u00E9 v \u010CSN 731373 a \u010CSN EN 13791. Zpracovan\u00E9 kalibra\u010Dn\u00ED vztahy pro HSC jsou prakticky vyu\u017Eiteln\u00E9, av\u0161ak pouze pro betony s hrub\u00FD drcen\u00FDm kamenivem z mate\u010Dn\u00ED horniny s pevnost\u00ED 160 a\u017E 200 MPa. Vyu\u017Eit\u00ED normov\u00FDch vztah\u016F je problematick\u00E9, proto\u017Ee podhodnocuj\u00ED pevnosti HSC o 14 a\u017E 22MPa." . . "K problematice stanoven\u00ED pevnost\u00ED HSC odrazov\u00FDmi tvrdom\u011Bry syst\u00E9mu Schmidt" . . "The problem of determining strength of HSC by rebound hammer Schmidt"@en . "K problematice stanoven\u00ED pevnost\u00ED HSC odrazov\u00FDmi tvrdom\u011Bry syst\u00E9mu Schmidt"@cs . "P(EE2.3.20.0111)" . "RIV/00216305:26110/14:PU109468" . . . "23808" . "K problematice stanoven\u00ED pevnost\u00ED HSC odrazov\u00FDmi tvrdom\u011Bry syst\u00E9mu Schmidt" . "24" . . "Bro\u017Eovsk\u00FD, Ji\u0159\u00ED" . . . "Sanace betonov\u00FDch konstrukc\u00ED" . . "26110" . "V \u010Dl\u00E1nku jsou uvedeny kalibra\u010Dn\u00ED vztahy pro hodnocen\u00ED HSC pomoc\u00ED Schmidtov\u00FDch tvr-dom\u011Br\u016F typu N a L a porovn\u00E1n\u00ED s kalibra\u010Dn\u00EDmi vztahy pro oby\u010Dejn\u00E9 betony uveden\u00E9 v \u010CSN 731373 a \u010CSN EN 13791. Zpracovan\u00E9 kalibra\u010Dn\u00ED vztahy pro HSC jsou prakticky vyu\u017Eiteln\u00E9, av\u0161ak pouze pro betony s hrub\u00FD drcen\u00FDm kamenivem z mate\u010Dn\u00ED horniny s pevnost\u00ED 160 a\u017E 200 MPa. Vyu\u017Eit\u00ED normov\u00FDch vztah\u016F je problematick\u00E9, proto\u017Ee podhodnocuj\u00ED pevnosti HSC o 14 a\u017E 22MPa."@cs . "6"^^ . . "CZ - \u010Cesk\u00E1 republika" . "2014" . "The problem of determining strength of HSC by rebound hammer Schmidt"@en . "rebound hammer, high-strength concrete, concrete"@en . . "RIV/00216305:26110/14:PU109468!RIV15-MSM-26110___" . . . "1211-3700" . . . "[8726778140A6]" . "2"^^ . "Byd\u017Eovsk\u00FD, Ji\u0159\u00ED" . "1"^^ . "K problematice stanoven\u00ED pevnost\u00ED HSC odrazov\u00FDmi tvrdom\u011Bry syst\u00E9mu Schmidt"@cs . .