TY - JOUR A1 - Heap, M.J. A1 - Lavallée, Y. A1 - Laumann, A. A1 - Hess, K.-U. A1 - Meredith, P.G. A1 - Dingwell, D.B. A1 - Huismann, Sven A1 - Weise, Frank T1 - The influence of thermal-stressing (up to 1000 °C) on the physical, mechanical, and chemical properties of siliceous-aggregate, high-strength concrete JF - Construction and building materials N2 - High-strength concrete (HSC) will experience thermal microcracking, explosive spalling, and undesirable chemical changes when exposed to high temperatures, such as during fire, engulfment by lava flow, or nuclear meltdown. Knowledge of the resultant changes in mechanical, physical, and chemical properties is paramount for hazard mitigation. We present a multidisciplinary study on the influence of thermal-stressing on HSC. Our study shows that thermal microcracking in HSC initiates at 180 °C, is more prevalent during cooling, and exhibits the Kaiser 'temperature-memory' effect. We show that residual compressive strength, indirect tensile strength, ultrasonic wave velocities, and Young’s modulus and Poisson’s ratio decrease, whilst porosity and permeability increase with increasing temperature. We discuss these data in terms of the chemical changes during thermal-stressing, provided by thermo-gravimetric analysis, differential scanning calorimetry, and X-ray diffraction, and from optical microscopic analysis of thermally-stressed samples. We provide implications for thermally-damaged HSC structures and a new method for non-destructive monitoring. KW - High strength concrete KW - Fire KW - Thermal-stressing KW - Acoustic emissions KW - Physical properties KW - Elastic moduli KW - Uniaxial compressive strength KW - Indirect tensile strength KW - Thermo-gravimetric analysis KW - X-ray diffraction PY - 2013 DO - https://doi.org/10.1016/j.conbuildmat.2013.01.020 SN - 0950-0618 VL - 42 SP - 248 EP - 265 PB - Elsevier Ltd. CY - Amsterdam AN - OPUS4-27992 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Huismann, Sven T1 - Damage of a high performance concrete at high temperatures due to thermo-mechanical stresses T2 - 7th International PhD Symposium in Civil Engineering, September 11-13, 2008, Stuttgart (Proceedings) T2 - 7th International PhD Symposium in Civil Engineering CY - Stuttgart, Germany DA - 2008-09-11 KW - High performance concrete KW - Fire KW - High temperatures KW - Cracking KW - Thermo-mechanical stresses PY - 2008 IS - Kap. 16.3 SP - 23 EP - 29 AN - OPUS4-17950 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Huismann, Sven A1 - Korzen, Manfred T1 - Experimental and numerical study of high performance concrete columns subjected to fire loading T2 - Applications of Structural Fire Engineering T2 - International Conference "Applications of structural fire engineering" CY - Prague, Czech Republic DA - 2009-02-19 KW - High performance concrete KW - Fire KW - High temperatures KW - Columns PY - 2009 SP - 246 EP - 251 CY - Prague, Czech Republic AN - OPUS4-19048 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - GEN A1 - Huismann, Sven A1 - Korzen, Manfred A1 - Schneider, U. ED - Kodur, V. ED - Franssen, J.-M. T1 - A material model for the numerical simulation of high strength concrete columns subjected to fire loading T2 - 6th International conference "Structures in fire" (Proceedings) T2 - 6th International conference "Structures in fire" CY - East Lansing, Michigan, USA DA - 2010-06-02 KW - High performance concrete KW - Columns KW - Fire KW - High temperatures KW - Numerical modelling KW - Numerical simulation PY - 2010 SN - 978-1-60595-027-3 SP - 312 EP - 319 PB - DEStech Publications, Inc. CY - Lancaster, PA, USA AN - OPUS4-21562 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - GEN A1 - Huismann, Sven A1 - Weise, Frank A1 - Schneider, U. ED - F. Dehn, ED - E.A.B. Koenders, T1 - Influence of the preload on the mechanical properties of high strength concrete at high temperatures T2 - 1st International RILEM workshop on concrete spalling due to fire exposure (Proceedings) T2 - 1st International RILEM workshop on concrete spalling due to fire exposure CY - Leipzig, Germany DA - 2009-09-03 KW - High performance concrete KW - High temperatures KW - Fire KW - Mechanical properties PY - 2009 SN - 978-3-00-028604-9 SP - 189 EP - 200 AN - OPUS4-20256 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER -