Stability, flexural behavior and compressive strength of ultra-lightweight fiber-reinforced foamed concrete with dry density lower than 100 kg/m3
- Falliano D.
- Parmigiani S.
- Suarez-Riera D.
- Ferro G. A.
- Restuccia L.
DOIAbstract
Ultra-lightweight (<100 kg/m3) foamed concrete based on Portland cement was produced by means of preformed foam. The effect of two different protein foaming agents and the addition of polypropylene microfibers on both the fresh and the hardened properties was investigated. In particular, slump, stability, flexural strength, compressive strength, porosity, pore sizes, and distribution were evaluated. The study revealed that the addition of microfibers (5% by mass of cement) gives rise to a three-dimensional system of connection that positively affects stability and mechanical performance. The addition of microfibers gives rise to an increase in flexural strength and compressive strength of approximately 300% and 22% respectively, promoting a...
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