It is well known that the durability of concrete is intimately related to its permeability; moreover the presence of cracks significantly increases the ability of aggressive agents to penetrate into concrete, accelerating the deterioration process. Short fibers, embedded into concrete, may improve matrix durability: in fact, fibers influence crack development by causing more distributed cracks with smaller widths. This paper presents the first results of a wider experimental research, aimed at studying the durability of FRC beams exposed to marine environment under service load. In particular, accurate measurements of crack spacing, crack width and crack height are reported as the first step in the analysis of the influence of fibers on durability of full scale structural members.
Cracking Behavior of FRC Beams exposed in marine environment under service loads
MICELLI, Francesco;AIELLO, Maria Antonietta;
2010-01-01
Abstract
It is well known that the durability of concrete is intimately related to its permeability; moreover the presence of cracks significantly increases the ability of aggressive agents to penetrate into concrete, accelerating the deterioration process. Short fibers, embedded into concrete, may improve matrix durability: in fact, fibers influence crack development by causing more distributed cracks with smaller widths. This paper presents the first results of a wider experimental research, aimed at studying the durability of FRC beams exposed to marine environment under service load. In particular, accurate measurements of crack spacing, crack width and crack height are reported as the first step in the analysis of the influence of fibers on durability of full scale structural members.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
