Using Mortar Infiltrated Fiber Concrete as Repairing Materials for Flat Slabs

Rawnaq Abbas Helal, Haider M. Al-Baghdadi, Nabeel Hasan Ali Al-Salim


This search aims to study and test the effect of using a new material (mortar infiltrated fiber concrete) as repair material in crucial regions that need a special type of repair like (deck of bridges, pavements, and defense structures). This work consisted of three stages: the first stage; testing the engineering properties of slurry infiltrated fiber concrete (compressive, splitting tensile, flexural and bond strengths), by using different types of fibers (End hooked steel fiber, Micro steel fiber, Polypropylene fiber, and Synthetic fiber), in five different types of mortar infiltrated fiber concrete mixes (with a volumetric ratio of fiber 6%), and the age of test was 28 days. After studying the behavior of these mixes in these tests, the second stage of this study was concluded casting reference slab with dimensions 900×900×80 mm from normal strength concrete and repairing two sets of damaged slabs (with dimensions 900×900×50 mm, the first set consist of five slabs damaged in the compression zone, and the second set consist of five slabs damaged in tension zone), the two sets repaired with repair layer from mortar infiltrated fiber concrete with thickness 30 mm. The third stage of the study was testing the effect of the repair material (mortar infiltrated fiber concrete) on the flexural behavior of the repaired slab specimens in (flexural strength, deflection characteristics, and ductility), through using a hydraulic jack with a four-point load system. The results of testing slab specimens indicated significant improvement in the flexural behavior of the repaired slab when compared with the reference slab, the slabs repaired in the compression zone recorded increasing in range 2-39% in ultimate load and the slabs that repaired in tension zone recorded 4-71% increasing in ultimate load .also recorded better deflection values through testing the slabs specimens that repaired. The ductility of the repaired slab specimens increased significantly from 25 to 91% compared with the reference slab specimens. These results indicated excellent effect mortar infiltrated fiber concrete as a perfect repair material for slabs that damaged in compression and tension zones.


Mortar Infiltrated Fibre Concrete; Flexural; Repair; Slab; Damage; Deflection; End Hooked Fiber; Hybrid.


Khamees, Shahad S., Mohammed M. Kadhum, and Nameer A. Alwash. “Effects of Steel Fibers Geometry on the Mechanical Properties of SIFCON Concrete.” Civil Engineering Journal 6, no. 1 (January 1, 2020): 21–33. doi:10.28991/cej-2020-03091450.

Rattan, Ankit, and Jasvir Singh. “Development of Ultra High Strength SIFCON.” Proceedings of the 1st International Conference on Sustainable Waste Management through Design (October 31, 2018): 178–186. doi:10.1007/978-3-030-02707-0_22.

Trang, Giap Thi Thuy, N. H. Linh, N. T. T. Linh, and P. H. Kien. “The Study of Dynamics Heterogeneity in SiO2 Liquid.” HighTech and Innovation Journal 1, no. 1 (March 1, 2020): 1–7. doi:10.28991/hij-2020-01-01-01.

Salih, Shakir, Qais Frayyeh, and Manolia Ali. “Fresh and Some Mechanical Properties of Sifcon Containing Silica Fume.” Edited by T.S. Al-Attar, M.A. Al-Neami, and W.S. AbdulSahib. MATEC Web of Conferences 162 (2018): 02003. doi:10.1051/matecconf/201816202003.

Yamaguchi, Makoto, Takeyuki Nagato, and Shintaro Morishima. “Clad-Reinforcing Effect of SIFCON on Blast Resistance of Reinforced Concrete Slabs.” Journal of Structural and Construction Engineering (Transactions of AIJ) 82, no. 732 (2017): 279–289. doi:10.3130/aijs.82.279.

U. Chand, “Structural Aspects of Slurry Infiltrated Fibers Concrete (SIFCON)”. M.S. Thesis, Civil Eng. Kurukshetra Univ., Haryana, India, (1995).

B.T. Wood, “Use of Slurry Infiltrated Fiber Concrete (SIFCON) in hinge regions for earthquake resistant structures”. PhD Thesis, North Carolina State Univ., Civil Engineering, Raleigh, (2000).

B.M. Douglas,” The Use of Fibrous Reinforced Concrete as a Structural Repair Alternative”, M.S. Thesis, Arizona Univ., USA, (1989).

Naaman, Antoine E., Hans W. Reinhardt, and Christoph Fritz. "Reinforced concrete beams with a SIFCON matrix." Structural Journal 89, no. 1 (1993): 79-88.

Jaafer, Abdulkhaliq Abdulyimah. “Experimental Investigation on The Ferrocement Slabs With A Sifcon Matrix.” Wasit Journal of Engineering Sciences 3, no. 1 (March 9, 2015): 40–54. doi:10.31185/ejuow.vol3.iss1.34.

M. A. Ali, "Properties of slurry infiltrated fiber concrete (SIFCON)." PhD diss., Ph. D Thesis, civil engineering dep., UOT, Iraq, (2018).

A. Kumar, “Structural behaviour of slurry infiltrated at concrete (SIMCON)”. M.S. Thesis, Civil Engineering Dep., Kurukshetra Univ., Haryana, India, (2001).

Hameed, Dalya H., Mays F. Alrubaie, Shakir A. Salih, Galib M. Habeeb, and Waleed A. Abbas. "Slurry Infiltrated Fiber Concrete as Sustainable Solution for Defected Buildings." Engineering and Technology Journal 37, no. 1 Part (c) special (2019): 132-138.

K. N. Bakhsh, “Evaluation of bond strength between overlay and Substrate in Concrete Repairs”. M.S. Thesis, school of architecture and the built environment, royal institute of technology, Stockholm, Sweden, (2010).

R.W. Siegfried, “Evaluation and repair of concrete slabs”. M.S. Thesis, civil engineering dep., Florida Univ., Florida, USA, (2001).

ACI Committee. "ACI 211.1-91 Standard Practice for Selecting Proportions for Normal, Heavyweight, and Mass Concrete, no. 9." Unites States (2002): 120-121.

Iraq Specification No.45, "Natural Sources for Gravel that is used in concrete and construction", Baghdad (1984).

ASTM C33/86, Standard Specification for Concrete Aggregates.

ASTM A615/A615M-16, Standard Specification for Deformed and Plain Carbon-Steel Bars for Concrete Reinforcement, ASTM International, West Conshohocken, PA, (2016).

ASTM C494/C494M, Standard Specification for Chemical Admixtures for Concrete, 2017.

ASTM, C.”1240-05 Standard, Specification for silica fume used in cementitous mixtures.” West Conshohocken, PA, American Society for Testing and Materials (2005).

ASTM A820/A820M – 16 Standard Specification for Steel Fibers for Fiber-Reinforced Concrete.

Diab, Ahmed M., Abd Elmoaty M. Abd Elmoaty, and Mohamed R. Tag Eldin. “Slant Shear Bond Strength Between Self Compacting Concrete and Old Concrete.” Construction and Building Materials 130 (January 2017): 73–82. doi:10.1016/j.conbuildmat.2016.11.023.

British Standard. “Method for determination of compressive strength of concrete cubes.” British Standards Institution 1881, part 116, (1989): 3.

ASTM C1609M-12. “Standard test method for flexural performance of fiber-reinforced concrete (using beam with third point loading),”American Society for Testing and Material International, (2012).

ASTM C469/C469M, Standard Test Method for Static Modulus of Elasticity and Poisson’s Ratio of Concrete in Compression ASTM International 2014.

M. Dopko, “Fiber reinforced concrete: Tailoring composite properties with discrete fibers”. M.S. Thesis, civil engineering dep., Theses and Dissertations at Iowa State Univ., Ames, Iowa, (2018).

Mohammed, Mansour Kadhum Alkafaji. “Performance of Reactive Powder Concrete Slabs with Different Curing Conditions.” Journal of Engineering and Technology Research 6, no. 6 (October 31, 2014): 81–93. doi:10.5897/jetr2014.0517.

Ali, M. A. "Properties of slurry infiltrated fiber concrete (SIFCON)." PhD diss., Ph. D Thesis, civil engineering dep., UOT, Iraq, (2018).

Full Text: PDF

DOI: 10.28991/cej-2020-03091595


  • There are currently no refbacks.

Copyright (c) 2020 rawnaq abbas Helal

Creative Commons License
This work is licensed under a Creative Commons Attribution 4.0 International License.