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  • Authors: Nguyen, Thi Thu Huong;  Advisor: -;  Participants: Nguyen, Viet Duc (2020)

  • Glass Fiber-Reinforced Self-Compacting Mortar (GFRSCM) is a composite material consisting of a mortar of Portland cement and fine aggregate reinforced with alkali-resistant glass fibers. The properties of GFRSCM depend upon a wide range of variables including mix formulation, fiber type and content, length, orientation, and admixture used… In this paper, the authors intend to study the effect of glass fiber content on properties of GFRSCM at fresh and hardened state. The experimental results have shown that the more the content of glass fiber is used, the lower the resultant slump flow value of GFRSCM mixture. At hardened state, glass fiber content barely affects the compressive strength of GFRSCM. However, the higher the glass fiber content added, the greater flexural and splittin...

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  • Authors: Nguyen, Viet Duc;  Advisor: -;  Participants: Nguyen, Thi Thu Huong (2020)

  • High strength concrete and/or mortar is known as more brittle in comparison with conventional concrete, which in turn limits the application of such material into practical engineering. The brittleness of concrete can be relieved by using dispersed fibers (steel, glass, synthetic, and natural). Thus, in this paper, the authors studied the effect of glass fiber length on the properties of high strength self-compacting mortar at both the fresh and hardened state. The experimental results have shown that the higher glass fiber length, the lower the resultant slump flow of Self-Compacting Mortar (SCM) mixture. At the hardened state, fiber length does not affect the compressive strength of SCM. However, the higher the fiber length was added, the higher the flexural, and the splitting ten...

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  • Authors: Nguyen, Viet Duc;  Advisor: -;  Participants: - (2020)

  • Maintenance and rehabilitation of marine structure is currently indispensable in Vietnam to prolong the service life instead of re-building with a very high cost that cannot be done in the short term. This paper focuses on the rehabilitation work of a beam structure by using glass fiber-reinforced high strength self-compacting mortar or SCM. The process was carried out by simply pouring the fresh SCM onto the surface of the beam that needs to be rehabilitated. The thirdpoint bending test has been used for the evaluation of rehabilitating effectiveness. The experimental results showed that the flexural strength of the rehabilitated beam with SCM application has improved 22% higher than that of the non-rehabilitated ones. In case of the rehabilitated beams that have cracked before, t...

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