Mechanical Properties of Nano-Particle Modified Ultra-High Performance Fiber Reinforced Concrete

2019 ◽  
pp. 449-454 ◽  
Author(s):  
X. F. Liu ◽  
Q. Wang ◽  
X. Z. Duan ◽  
Y. X. Zhang ◽  
K. Q. Yu
Keyword(s):  
Mechanical Properties ◽  
Reinforced Concrete ◽  
High Performance ◽  
Fiber Reinforced Concrete ◽  
Nano Particle ◽  
Fiber Reinforced ◽  
High Performance Fiber

EXPERIMENTAL STUDY OF ULTRA-HIGH PERFORMANCE FIBER REINFORCED CONCRETE DOSAGES WITH ULTRA FAST SETTING TIME

2017 ◽  
Vol 4 (1) ◽  
Author(s):  
Ester Gimenez-Carbo ◽  
Raquel Torres ◽  
Pedro Serna
Keyword(s):  
Mechanical Properties ◽  
Reinforced Concrete ◽  
High Performance ◽  
Mixing Time ◽  
Setting Time ◽  
Fiber Reinforced Concrete ◽  
Strength Development ◽  
Fiber Reinforced ◽  
High Performance Fiber ◽  
Compressive And Flexural Strengths

The overall objective of the work is the development of ultra high performance fiber reinforced concrete (UHPFRC) dosages that can be used for shotcrete. In this study, a number of UHPFRC mixtures with different amount of admixtures (plasticizers and accelerating) and different mixing time were tested, to increase either the rate of stiffening or setting of the concrete or the rate of hardening and early-strength development. Workability, consistency and mechanical properties of UHPFRC including compressive and flexural strengths at different ages were assessed. Results showed mixtures than begin their first setting in less than 1 minute, with very good mechanical properties in 24 hours, and without reducing the compressive strength at 28 days. From the results obtained, various uses of these mixtures are proposed taking into account, the new context of the Construction field, with the appearance of new placing concrete techniques.

Analytical Prediction of the Mechanical Properties of High Performance PVA Fiber Reinforced Concrete

2014 ◽  
Vol 567 ◽  
pp. 345-350 ◽  
Author(s):  
Tehmina Ayub ◽  
Nasir Shafiq ◽  
Muhd Fadhil Nuruddin
Keyword(s):  
Mechanical Properties ◽  
Reinforced Concrete ◽  
High Performance ◽  
Fiber Reinforced Concrete ◽  
Analytical Prediction ◽  
Fiber Reinforced ◽  
Fiber Volume ◽  
Binder Ratio ◽  
High Performance Fiber ◽  
Pva Fiber

In this paper, mechanical properties of three series of high performance fiber reinforced concrete (HPFRC) containing 1, 2 and 3% of Polyvinyl Alcohol (PVA) fiber volume are presented. The first series of HPFRC was prepared by using 100% cement, whereas remaining two series were prepared by replacing 10% cement content with silica fume and locally produced metakaolin. All series were designed with water to binder ratio (w/b) of 0.4. The mechanical properties determined in this study include compressive strength, splitting tensile strength and flexural strength. Testing of the specimens was conducted at the 28 days of curing. Experimental results showed that the 3% PVA fiber is the optimum fiber volume to improve the mechanical properties of HPFRC. The variation in the mechanical properties due to the addition of PVA fibers was investigated and presented in the form of mathematical relationship. Further, interrelationship among the mechanical properties was also determined.

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