Abstract
The efficiency of cellulose fiber in arresting cracks in cementitious composites was studied. A ring-type specimen was developed for the restrained shrinkage craking test. Concretes reinforced with 6 different types of cellulose fibers with a fiber content of 0.5% by volume were tested. Cellulose fiber reinforcement showed an ability to reduce the crack width significantly. For comparison concrete reinforced with 0.5% cellulose fibers showed equally excellent performance as 0.5% polypropylene fibers. The long-term mechnical performance of cellulose and polypropylene fiber reinforced concrete was also evaluated. The details of the study and the findings are presented. The influence of cellulose fiber reinforcement on other properties of concrete was also studied.
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