Performance properties of sealants in concrete facade joints

Liisa Rautiainen, Taru Haimala

Research output: Book/ReportReportProfessional

Abstract

Selected EN standards were used to study performance properties of twelve elastic sealants in concrete facade joints. The properties measured were tensile stress strain properties, tensile properties at maintained extension, elastic recovery and resistance to flow. The properties were measured after conditioning in standard climate, after cyclic heat water treatment and after 3000 h of UV radiation exposure with an Xenon arch. The tensile properties and resistance to flow were measured in the temperatures representing relevant sealing temperatures and relevant temperatures of the concrete elements and sealants in practice. By taking into account element movements, planned joint widths and the time of elements and sealants installation, the future elongation or compression cycle of the sealant can be predicted. By taking into account both the measured tensile properties of the sealants before and after exposure as well as the working properties, the most suitable products for each element facade can be chosen. On the basis of the test results selection guidelines for sealants has been proposed. The selection guidelines provide a common basis for the selection of sealants for concrete facade joints.
Original languageEnglish
Place of PublicationEspoo
PublisherVTT Technical Research Centre of Finland
Number of pages57
ISBN (Print)951-38-4467-6
Publication statusPublished - 1993
MoE publication typeNot Eligible

Publication series

NameVTT Tiedotteita - Meddelanden - Research Notes
PublisherVTT
No.1533
ISSN (Print)1235-0605
ISSN (Electronic)1455-0865

Fingerprint

Facades
Sealants
Concretes
Tensile properties
Xenon
Arches
Water treatment
Tensile stress
Ultraviolet radiation
Temperature
Elongation
Compaction
Recovery

Keywords

  • sealers
  • sealing
  • concrete structures
  • facades
  • joint sealers
  • precast concrete
  • performance evaluation
  • elongation
  • utilization
  • specifications
  • performance tests
  • standards
  • measurement
  • tensile stress
  • tensile properties
  • elastic properties
  • viscosity
  • ultraviolet radiation
  • selection
  • instructions
  • temperature

Cite this

Rautiainen, L., & Haimala, T. (1993). Performance properties of sealants in concrete facade joints. Espoo: VTT Technical Research Centre of Finland. VTT Tiedotteita - Meddelanden - Research Notes, No. 1533
Rautiainen, Liisa ; Haimala, Taru. / Performance properties of sealants in concrete facade joints. Espoo : VTT Technical Research Centre of Finland, 1993. 57 p. (VTT Tiedotteita - Meddelanden - Research Notes; No. 1533).
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Rautiainen, L & Haimala, T 1993, Performance properties of sealants in concrete facade joints. VTT Tiedotteita - Meddelanden - Research Notes, no. 1533, VTT Technical Research Centre of Finland, Espoo.

Performance properties of sealants in concrete facade joints. / Rautiainen, Liisa; Haimala, Taru.

Espoo : VTT Technical Research Centre of Finland, 1993. 57 p. (VTT Tiedotteita - Meddelanden - Research Notes; No. 1533).

Research output: Book/ReportReportProfessional

TY - BOOK

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AB - Selected EN standards were used to study performance properties of twelve elastic sealants in concrete facade joints. The properties measured were tensile stress strain properties, tensile properties at maintained extension, elastic recovery and resistance to flow. The properties were measured after conditioning in standard climate, after cyclic heat water treatment and after 3000 h of UV radiation exposure with an Xenon arch. The tensile properties and resistance to flow were measured in the temperatures representing relevant sealing temperatures and relevant temperatures of the concrete elements and sealants in practice. By taking into account element movements, planned joint widths and the time of elements and sealants installation, the future elongation or compression cycle of the sealant can be predicted. By taking into account both the measured tensile properties of the sealants before and after exposure as well as the working properties, the most suitable products for each element facade can be chosen. On the basis of the test results selection guidelines for sealants has been proposed. The selection guidelines provide a common basis for the selection of sealants for concrete facade joints.

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KW - joint sealers

KW - precast concrete

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KW - elongation

KW - utilization

KW - specifications

KW - performance tests

KW - standards

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KW - elastic properties

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Rautiainen L, Haimala T. Performance properties of sealants in concrete facade joints. Espoo: VTT Technical Research Centre of Finland, 1993. 57 p. (VTT Tiedotteita - Meddelanden - Research Notes; No. 1533).