Strength and deformability of compressed concrete elements with various types of non-metallic fiber and rods reinforcement under static loading

International Scientific Conference of Young Scientists: Advanced Materials in Construction and Engineering

材料科学;土木建筑工程;工业技术

Nevskii, A.V.^1 ; Baldin, I.V.^1 ; Kudyakov, K.L.^1

Tomsk State University of Architecture and Building, Department of Reinforced Concrete and Masonry Structures, Tomsk

634003, Russia^1

关键词: Composite fibers;    Composite reinforcement;    Compressive static load;    Concrete elements;    Concrete samples;    Experimental program;    Longitudinal reinforcement;    Maximum strength;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/71/1/012037/pdf
DOI  :  10.1088/1757-899X/71/1/012037

来源: IOP

【 摘 要 】

Adoption of modern building materials based on non-metallic fibers and their application in concrete structures represent one of the important issues in construction industry. This paper presents results of investigation of several types of raw materials selected: basalt fiber, carbon fiber and composite fiber rods based on glass and carbon. Preliminary testing has shown the possibility of raw materials to be effectively used in compressed concrete elements. Experimental program to define strength and deformability of compressed concrete elements with non-metallic fiber reinforcement and rod composite reinforcement included design, manufacture and testing of several types of concrete samples with different types of fiber and longitudinal rod reinforcement. The samples were tested under compressive static load. The results demonstrated that fiber reinforcement of concrete allows increasing carrying capacity of compressed concrete elements and reducing their deformability. Using composite longitudinal reinforcement instead of steel longitudinal reinforcement in compressed concrete elements insignificantly influences bearing capacity. Combined use of composite rod reinforcement and fiber reinforcement in compressed concrete elements enables to achieve maximum strength and minimum deformability.