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A Laboratory Investigation Of Cement Based Materials With Cellulose Nanofibers, Parivash Takasi
A Laboratory Investigation Of Cement Based Materials With Cellulose Nanofibers, Parivash Takasi
Electronic Theses and Dissertations
Cellulose Nanofibers (CNFs) are used as additives in cement-based products to modify their properties. Recent studies about the effects of CNFs on cement paste showed inconsistent results for several different important properties, including compressive strength and free shrinkage. There is reason to believe that the unsystematic results of the compressive strengths were affected by the lack of uniform dispersion of CNFs. As a potential remedy, two different mixing methods were applied. The first method used a basic mixer, but aggregates were added to the cement paste mixture to improve the blending process. The second method utilized a high-speed shear mixer …
Experimental Investigation Of Concrete Breakout Strength Of Anchor In Tension Within Fiber Reinforced Concrete, Karthik Vidyaranya
Experimental Investigation Of Concrete Breakout Strength Of Anchor In Tension Within Fiber Reinforced Concrete, Karthik Vidyaranya
Civil Engineering Theses
This research investigates the effects of steel fibers on the concrete breakout of the cast-in-place headed stud anchors in tension. High strength anchors (F1554 G105) is used in this study for varying steel fiber dosage of 0.0%, 0.5% and 1.0% by volume fraction of concrete. The physical properties of steel fiber reinforced concrete were calculated through various test at the Civil Engineering laboratory Building. In total, 9-cylinder specimens of 4” diameter and 8” height, and 9 beam specimens, 6”x6”x20” were made and tested. After 28 days of curing, the specimens were tested for their compressive strength and modulus of rupture, …