Strengthening of masonry walls with high strength fibers and inorganic matrix

Mohamed Nazier, James W Giancaspro, P. Balaguru

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

High strength carbon and glass fiber composites are being used to strengthen various types of reinforced and prestressed concrete structures. They are also being evaluated for strengthening of unreinforced masonry walls to improve their lateral and shear resistance. There is a critical need for this type of rehabilitation for structures located in earthquake prone areas and other locations that suffer natural disasters such as hurricanes. High strength organic matrix compounds have a number of advantages including high specific strength and resistance to corrosion. However, they are not fire-resistant. This deficiency becomes more important in buildings because fire not only reduces the effectiveness of the strengthening but could also result in toxic fumes. The results presented in this paper deal with the use of an inorganic matrix for strengthening concrete blocks. The matrix can withstand temperatures up to 1000°C and does not produce any fumes. Prismatic members cut from commercially available concrete blocks were strengthened with alkali resistant glass, E-glass, and carbon fibers and fabrics. The strengthened prisms were tested in flexure to evaluate the improvements in strength, stiffness, and toughness. The results indicate that all three types of fibers can be effectively used to improve the performance of concrete blocks. As expected, carbon fibers provide better reinforcement.

Original languageEnglish (US)
Title of host publicationInternational SAMPE Symposium and Exhibition (Proceedings)
Pages919-928
Number of pages10
Volume47 II
StatePublished - 2002
Externally publishedYes
Event47th International SAMPE Symposium and Exhibition - Long Beach, CA, United States
Duration: May 12 2002May 16 2002

Other

Other47th International SAMPE Symposium and Exhibition
CountryUnited States
CityLong Beach, CA
Period5/12/025/16/02

Fingerprint

Concrete blocks
Carbon fibers
Fumes
Glass fibers
Fibers
Fires
Poisons
Hurricanes
Prestressed concrete
Alkalies
Prisms
Concrete construction
Patient rehabilitation
Disasters
Toughness
Reinforced concrete
Earthquakes
Reinforcement
Stiffness
Corrosion

Keywords

  • Carbon fibers
  • Concrete
  • Inorganic matrix

ASJC Scopus subject areas

  • Chemical Engineering(all)
  • Chemical Engineering (miscellaneous)
  • Building and Construction
  • Polymers and Plastics

Cite this

Nazier, M., Giancaspro, J. W., & Balaguru, P. (2002). Strengthening of masonry walls with high strength fibers and inorganic matrix. In International SAMPE Symposium and Exhibition (Proceedings) (Vol. 47 II, pp. 919-928)

Strengthening of masonry walls with high strength fibers and inorganic matrix. / Nazier, Mohamed; Giancaspro, James W; Balaguru, P.

International SAMPE Symposium and Exhibition (Proceedings). Vol. 47 II 2002. p. 919-928.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Nazier, M, Giancaspro, JW & Balaguru, P 2002, Strengthening of masonry walls with high strength fibers and inorganic matrix. in International SAMPE Symposium and Exhibition (Proceedings). vol. 47 II, pp. 919-928, 47th International SAMPE Symposium and Exhibition, Long Beach, CA, United States, 5/12/02.
Nazier M, Giancaspro JW, Balaguru P. Strengthening of masonry walls with high strength fibers and inorganic matrix. In International SAMPE Symposium and Exhibition (Proceedings). Vol. 47 II. 2002. p. 919-928
Nazier, Mohamed ; Giancaspro, James W ; Balaguru, P. / Strengthening of masonry walls with high strength fibers and inorganic matrix. International SAMPE Symposium and Exhibition (Proceedings). Vol. 47 II 2002. pp. 919-928
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