Effect of Temperature and Sisal Fiber Content on the Properties of Plaster of Paris

Abstract

Recent developments in the production of ecologically friendly building composites have led to a renewed interest in the use of vegetable fibers as a reinforcement element. Traditional pure Plaster of Paris (POP) can suffer from the development of micro-cracks due to thermal expansion. Therefore, sisal fiber was studied for its potential as an ecological element to restrict and delay the development of micro-cracks in POP. Different sisal proportions of 0, 2, 4, 6, 8 and 10 wt. % of POP were used to characterize the physical and mechanical properties of POP at the ambient temperature. Then, the effects of temperatures of 25, 100, 200, 300, 400 and 500 were investigated. Results proved that the composite of 10% sisal fiber had the best mechanical properties. Also, when the fiber content was increased, the composite’s performance was enhanced, becoming better able to resist elevated temperatures. However, raising the temperature to 300 or above had a negative effect on the mechanical properties, which were significantly decreased due to the degradation of the sisal fiber.

Thermal Characterization of a New Bio-Composite Building Material based on Gypsum and Date Palm Fiber

“…The outcomes of the study revealed a significant enhancement in the thermal characteristics of palm fiber-reinforced plaster. Additionally, it's worth noting that Almusawi et al [11] highlighted the pivotal role of palm fiber reinforcement in enhancing the mechanical properties of plaster. In a study conducted by Naiiri et al [12], an evaluation was carried out to determine the impact of doum palm fibers on gypsum mortar properties.…”

Investigation of the mechanical and thermal characteristics of an eco-insulating material made of plaster and date palm fibers

“…The obtained results have shown a remarkable improvement in the thermal properties of plaster reinforced with palm fibers. Almusawi et al [12], in their studies, demonstrated the importance of reinforcing the plaster by palm fiber in improving mechanical performance. Naiiri et al [13] evaluated the effect of doum palm fibers on the properties of plaster mortar.…”