Open AccessPhysical Properties and Durability of Green Fiber-Reinforced Concrete for Road Bridges
Author(s) -
Chenglong Ma
Publication year - 2021
Publication title -
annales de chimie, science des matériaux/annales de chimie
Language(s) - English
Resource type - Journals
eISSN - 1958-5934
pISSN - 0151-9107
DOI - 10.18280/acsm.450211
Subject(s) - durability , shrinkage , materials science , flexural strength , carbonation , ultimate tensile strength , cracking , compressive strength , structural engineering , brittleness , composite material , fiber , fiber reinforced concrete , engineering
Dry shrinkage and brittleness are outstanding problems with the concrete in road bridges. However, the road bridge concrete has not been systematically studied. No research has fully considered the influence of age on the physical-mechanical properties of road bridge concrete. There are few reports on how the green fiber dosage affects road bridge concrete. This paper analyzes the physical properties and durability of green fiber-reinforced concrete for road bridges (RBGFRC). Firstly, calculation methods were provided for physical-mechanical properties of RBGFRC, such as crack resistance, shear capacity of oblique section, and bending capacity of normal section. Next, the physical-mechanical properties of RBGFRC were investigated in terms of flexural strength, compressive strength, splitting tensile strength, and early cracking strength; the durability of the material was discussed from three aspects: carbonation resistance, resistance to freeze-thaw cycles, and porosity. Experimental results verify the good physical properties and durability of RBGFRC. The research provides a reference for applying RBGFRC in other scenarios.