Browse > Article
http://dx.doi.org/10.14190/JRCR.2019.7.4.438

Effect of Polypropylene Fiber on the Freeze-Thaw Damage of Mortar  

Yoo, Jae-Chul (Department of Architectural Engineering, Chungnam National University)
Kim, Gyu-Yong (Department of Architectural Engineering, Chungnam National University)
Lee, Sang-Kyu (Department of Architectural Engineering, Chungnam National University)
Hwang, Eui-Chul (Department of Architectural Engineering, Chungnam National University)
Nam, Jeong-Soo (Department of Architectural Engineering, Chungnam National University)
Publication Information
Journal of the Korean Recycled Construction Resources Institute / v.7, no.4, 2019 , pp. 438-444 More about this Journal
Abstract
In this study, the effect of polypropylene fiber on the freeze-thaw damage of mortar was evaluated experimentally. The effects of the reinforcing of polypropylene fiber on the compressive and bending performance of mortar after 300 cycles of freeze-thaw test were evaluated by comparing the normal mortar and the mortar with polyvinyl alcohol fiber. In addition, the mass loss, relative dynamic elastic modulus, and cumulated pore volume of mortar were measured by each cycle of freeze-thaw test. As a result, it was confirmed that the fiber reinforced mortar, regardless of the fiber type, was effective not only in maintaining the performance of the compressive strength and the bending strength but also suppressing the mass loss after the freeze-thaw test of 300 cycles. Meanwhile, it was confirmed that not only polyvinyl alcohol fibers but also polypropylene fibers can effectively act to suppress the damage of the mortar by freeze-thaw. However, in order to improve the freeze-thaw resistance of mortar mixed with polypropylene fiber, it is necessary to increase the bonding performance with the cement matrix which can be expected from polyvinyl alcohol fiber.
Keywords
Freeze-thaw; Polypropylene fiber; Mechanical properties; Mass loss; Cumulated pore volume;
Citations & Related Records
연도 인용수 순위
  • Reference
1 ASTM C 231. (2017). Standard Test Method for Air Content of Freshly Mixed Concrete by the Pressure Method, American Society for Testing and Materials, USA.
2 ASTM C 39. (2018). Standard Test Method for Compressive Strength of Cylindrical Concrete Specimens, American Society for Testing and Materials, USA.
3 ASTM C 666. (2015). Standard Test Method for Resistance  of  Concrete  to  Rapid  Freezing  and  Thawing, American Society for Testing and Materials, USA.
4 ASTM C 78. (2018). Standard Test Method for Flexural Strength of Concrete(Using Simple Beam with Third-Point Loading), American Society for Testing and Materials, USA.
5 JIS A 1148. (2010). Method of Test for Resistance of Concrete to Freezing and Thawing, Japanese Industrial Standards, Japan.
6 KS L 2456. (2018). Standard Test Method for Resistance of Concrete to Rapid Freezing and Thawing, Korean Standards, Korea [in Korean].
7 KS L 5111. (2017). Flow Table for Use in Tests of Hydraulic Cement, Korean Standards, Korea [in Korean].
8 Lamond, J.F., Pielert, J.H. (2006). Significance of Tests and Properties of Concrete & Concrete-Making Materials, ASTM International, STP 169D.
9 Litvan, G.G., Sereda, P.J. (1977). Particulate admixture for enhanced freezeethaw resistance of concrete, Cement and Concrete Research, 8(1), 53-60.   DOI
10 Lepech, M., Li, V.C. (2005). "Water permeability of cracked cementitious composites," Proceedings of 11th International Conference on Fracture(ICF), Torino, Italy, 20-25.
11 Ozbay, E., Karahan, O., Lacemi, M., Hossain, K.M.A., Atis, C.D. (2013). Dual effectiveness of freezing-thawing and sulfate attack on high-volume slag-incorporated ECC, Composites Part B: Engineering, 45, 1384-1390.   DOI
12 Sahmaran, M., Li, V.C. (2009). Durability properties of micro-cracked ECC containing high volumes fly ash, Cement and Concrete Research, 39, 1033-1043.   DOI
13 Sahmaran, M., Ozbay, E., Yucel, H.E., Lachemi, M., Li, V.C. (2012). Frost resistance and microstructure of engineered cementitious composites: influence of fly ash and micro poly-vinyl-alcohol fiber, Cement and Concrete Composites, 34(2), 156-165.   DOI
14 Yun, H.D., Rokugo, K. (2012). Freezeethaw influence on the flexural properties of ductile fiber-reinforced cementitious composites (DFRCCs) for durable infrastructures, Cold Regions Science and Technology, 78, 82-88.   DOI