Mechanical Behavior of Mode I Fractured Concrete Repaired by Polymethyl Methacrylate (PMMA)

Yu Cheng Kan; Ming Gin Lee; Hung Wei Lee

doi:10.4028/www.scientific.net/MSF.990.50

Paper Titles

Utilization of Local Waste Materials in High-Performance and Self-Compacting Concrete
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Static Softening Behavior of Low Carbon High Niobium Microalloyed Steel
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Experimental Study on Friction Characteristics of Micro-Arc Oxidation Modified Layer on Titanium Alloy Surface
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Mechanical Behavior of Mode I Fractured Concrete Repaired by Polymethyl Methacrylate (PMMA)
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Modification and Scale-Up Process of Citrogypsum to α-Calcium Sulfate Hemihydrate over Sodium Chloride Solution
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Review and Prospect of the Influence of Laser Cladding Process Parameters on the Properties of Die Cladding Layer
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Study on the Friction Characteristics of Plasma Spray Modified Layer on Titanium Alloy in Artificial Sea Water Environment
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HomeMaterials Science ForumMaterials Science Forum Vol. 990Mechanical Behavior of Mode I Fractured Concrete...

Mechanical Behavior of Mode I Fractured Concrete Repaired by Polymethyl Methacrylate (PMMA)

Abstract:

This paper attempts to investigate the fracture toughness of the cracked concrete repaired by polymethyl methacrylate (PMMA) - a thermo-plastic polymer resin. A single-edged notch beam in three-point bending test was conducted to examine the performance of cracked concrete beam after reparation. Three concrete crack widths of 1 mm, 5 mm, 10 mm were designated to be repaired and examed. The fracture properties include critical stress intensity factor K_IC by Jenq and Shah and fracture energy G_F by Hillerburg, were evaluated for the concrete before cracking and after reparation. Four sand contents of 0%, 10%, 20% and 40% by volume were used in the PMMA mortars. From the testing results, it appears that the load capacity and fracture toughness of repaired concrete increased with the increasing sand content. And, the PMMA mortar made repaired concrete better strength and fracture toughness as well.

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Periodical:

Materials Science Forum (Volume 990)

Pages:

50-54

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.990.50

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Online since:

May 2020

Authors:

Yu Cheng Kan*, Ming Gin Lee, Hung Wei Lee

Keywords:

Concrete, Crack, Fracture Toughness, PMMA, Repair

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