Study on Splitting Tensile Mechanical Properties of Carbon Fiber/Polymer Latex Powder Composite Modified Concrete

Xin Meng,Zhe Huang,Wei Xia,Erlei Bai,Zhihang Wang,M.M.H Mostafa,S Manickam

doi:10.1051/e3sconf/202126102036

Xin Meng, Zhe Huang + Show 5 more

Open Access

https://doi.org/10.1051/e3sconf/202126102036

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Abstract

The effects of carbon fiber and polymer latex powder on the split tensile mechanical properties of concrete in single and compound mixing conditions are studied. The results show that both carbon fiber or polymer latex powder can improve the split tensile strength and peak strain of concrete. When the carbon fiber content is 0.2%, the split tensile mechanical properties of carbon fiber reinforced concrete (CFRC) are the best. When the amount is 8%, the mechanical properties of polymer modified concrete (PMC) in split tension are the best. When the carbon fiber content is 0.3% and the polymer latex powder content is 0.8%, the splitting tensile mechanical properties of the carbon fiber/polymer latex powder composite modified concrete (CFRPMC) specimens are the best, and are better than CFRC specimens and PMC specimens.

Highlights

With the development of science and technology in recent years, composite building materials such as fiber reinforced concrete and polymer modified concrete have become more and more widely used in the field of civil engineering [1,2]
It can be seen from the figure that as the content of carbon fiber increases, the split tensile strength and peak strain of carbon fiber reinforced concrete (CFRC) both increase first and decrease
When the content of carbon fiber is 0.3%, the split tensile strength and peak strain of CFRC are reduced, but compared with the case without carbon fiber, they increase by 34.84% and 42.85%, respectively

Summary

Introduction

With the development of science and technology in recent years, composite building materials such as fiber reinforced concrete and polymer modified concrete have become more and more widely used in the field of civil engineering [1,2]. In the current research on fiber/polymer composite modified concrete, the choice of fiber materials is very limited, mainly high-strength steel fibers and polymer fibers with a certain degree of flexibility [6,7]. This paper selects carbon fiber and polymer latex powder to modify the concrete, and studies the influence of carbon fiber content on the split tensile mechanical properties of CFRC and the influence of the amount of polymer latex powder on the split tensile mechanical properties of PMC and CFRPMC

Experiment material

Experiment method

Results and analysis

Mechanism analysis

Conclusion