Strain-hardening cement-based composites Material design, properties and applications in construction

被引:2
|
作者
Mechtcherine, Viktor [1 ]
机构
[1] Tech Univ Dresden, Inst Baustoffe, D-01062 Dresden, Germany
关键词
Anwendung; Baustoffe; Betontechnologie; Bruchmechanik; Dauerhaftigkeit; Duktilitat; Dynamik; Faserbeton; Hochleistungsbeton; Impakt; Instandsetzung; Kurzfaser; Polymerfaser; Risse; Verformungsverhalten; Verstarkung; Zugverhalten; Allgemeines; PROBABILISTIC DURABILITY CONCEPT; BEHAVIOR; SHCC;
D O I
10.1002/best.201400046
中图分类号
TU [建筑科学];
学科分类号
0813 ;
摘要
Hochduktile Betone mit Kurzfaserbewehrung (meist Polyvinilalkohol- oder hochmodulige Polyethylenmikrofaser) sind neue zementgebundene Hochleistungswerkstoffe, die unter Zugbeanspruchung eine Verfestigung aufweisen und eine im Vergleich zu gebrauchlichen Faserbetonen mehr als einhundertmal hohere Bruchdehnung besitzen. Neben ihrer gro ss en Verformungsfahigkeit sowie hohen Biegezug- und Schubfestigkeit weisen hochduktile Betone bis zur Bruchdehnung sehr geringe Rissoffnungen auf. Diese besonderen Eigenschaften machen diese neue Betonart fur spezielle Anwendungen sowohl bei Neubau als auch bei Verstarkung und Instandsetzung von bestehenden Bauwerken interessant. Dieser Aufsatz gibt einen uberblick uber die baustofflichen Grundlagen, die Eigenschaften und Anwendungsmoglichkeiten der neuen Faserbetonart. Strain-hardening cement-based compositesMaterial design, properties and applications in construction Strain-hardening cement-based composites (SHCC) are new, high-performance materials reinforced in most cases with either polyvinyl-alcohol or high-density polyethylene fibre. These composites exhibit strain-hardening behaviour under tensile loading. They have a strain capacity on an order of magnitude of more than one hundred times that of ordinary fibre-reinforced concrete. SHCC have relatively high tensile and shear strengths and up until reaching strain capacity yield only very narrow, multiple cracks. These specific features make this new type of concrete attractive for a number of practical applications both in new construction and in the repair and strengthening of existing structures. The article at hand provides an overview of SHCCs' material design as well as of their mechanical performance, durability and fields of application.
引用
收藏
页码:50 / 58
页数:9
相关论文
共 50 条
  • [31] Modeling the Tensile Behavior of Fiber-Reinforced Strain-Hardening Cement-Based Composites: A Review
    Ribeiro, Paula de Oliveira
    Krahl, Pablo Augusto
    Carrazedo, Ricardo
    Bernardo, Luis Filipe Almeida
    [J]. MATERIALS, 2023, 16 (09)
  • [32] Properties of strain-hardening cement composites with superabsorbent polymer particles
    Jang, Seok-Joon
    Yun, Hyun-Do
    Kim, Sun-Woo
    Park, Wan-Shin
    Kobayashi, Koichi
    [J]. MAGAZINE OF CONCRETE RESEARCH, 2019, 71 (08) : 437 - 448
  • [33] MODELLING THE RATE-PROCESSES IN CRACKING AND FRACTURE OF STRAIN-HARDENING CEMENT-BASED COMPOSITES (SHCC)
    van Zijl, G. P. A. G.
    [J]. FRACTURE AND DAMAGE OF ADVANCED FIBRE-REINFORCED CEMENT-BASED MATERIALS, 2010, : 185 - 193
  • [34] Flexural toughness of strain hardening cement-based composites
    Zhao, Tie-Jun
    Mao, Xin-Qi
    Wittmann, Xin-Hua
    [J]. Advances in Structural Engineering:Theory and Applications Vols 1 and 2, 2006, : 1560 - 1566
  • [35] A novel durability design approach for new cementitious materials: Modelling chloride ingress in strain-hardening cement-based composites
    Altmann, F.
    Mechtcherine, V.
    Reuter, U.
    [J]. CONCRETE REPAIR, REHABILITATION AND RETROFITTING II, 2009, : 117 - +
  • [36] MECHANICAL BEHAVIOUR OF STRAIN-HARDENING CEMENT-BASED COMPOSITES (SHCC) UNDER LOW AND HIGH TENSILE STRAIN RATES
    Silva, F. A.
    Butler, M.
    Mechtcherine, V.
    Zhu, D.
    Mobasher, B.
    [J]. FRACTURE AND DAMAGE OF ADVANCED FIBRE-REINFORCED CEMENT-BASED MATERIALS, 2010, : 23 - +
  • [37] Stress-strain behaviour of Strain-Hardening Cement-based Composites (SHCC) under repeated tensile loading
    Mechtcherine, V.
    Jun, P.
    [J]. FRACTURE MECHANICS OF CONCRETE AND CONCRETE STRUCTURES, VOLS 1-3: VOL 1: NEW TRENDS IN FRACTURE MECHANICS OF CONCRETE; VOL 2: DESIGN, ASSESSMENT AND RETROFITTING OF RC STRUCTURES; VOL 3: HIGH-PERFORMANCE CONCRETE, BRICK-MASONRY AND ENVIRONMENTAL ASPECTS, 2007, 1-3 : 1441 - 1448
  • [38] MECHANICAL PROPERTIES OF SUSTAINABLE STRAIN-HARDENING CEMENT-BASED COMPOSITES AFTER EXPOSURE TO RAPID FREEZE-THAW CYCLES
    Do Yun, Hyun
    Rokugo, Keitetsu
    [J]. FIB SYMPOSIUM PRAGUE 2011: CONCRETE ENGINEERING FOR EXCELLENCE AND EFFICIENCY, VOLS 1 AND 2, 2011, : 345 - 348
  • [39] Age dependence of cracking and deformability of a strain-hardening cement-based composite
    Klink, Thomas
    Stegmann, Florian
    Slowik, Volker
    [J]. CONSTRUCTION AND BUILDING MATERIALS, 2019, 214 : 641 - 647
  • [40] THERMAL PROPERTIES AND RESISTANCE TO THERMAL SHOCK OF STRAIN HARDENING CEMENT-BASED COMPOSITES
    Magalhaes, M. S.
    Toledo Filho, R. D.
    Fairbairn, E. M. R.
    [J]. 2ND INTERNATIONAL RILEM CONFERENCE ON STRAIN HARDENING CEMENTITIOUS COMPOSITES (SHCC2-RIO), 2011, 81 : 189 - +