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This research aims to understand how elevated temperatures affect the tensile behavior and crack evolution in polypropylene fiber-reinforced cementitious composites.

March 10, 2026Results in EngineeringOpen Access

Thermal Degradation of Polypropylene Fiber-Reinforced Cementitious Composites, Tensile Behavior and Crack Evolution Assessed by Digital Image Correlation

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Authors

HKHamid Reza KarimiKhorramshahr University of Marine Science and Technology RAReza AlealiKhorramshahr University of Marine Science and Technology NKNima Shahni KaramzadehKhorramshahr University of Marine Science and Technology

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Implication

Examines tensile performance and crack evolution in polypropylene fiber-reinforced composites, indicating significant strength loss with temperature exposure.

Key Points

This research aims to understand how elevated temperatures affect the tensile behavior and crack evolution in polypropylene fiber-reinforced cementitious composites.
Specimens with 0–3% polypropylene fibers were exposed to temperatures up to 400°C.
Direct uniaxial tensile testing was performed alongside digital image correlation analysis.
Strength reduction and crack patterns were evaluated at different temperature intervals.
Exposure to 200°C reduced ultimate tensile strength by 18–25%.
At 400°C, strength degradation reached 40–65%, with a 70% reduction in tensile strain capacity.
Elastic modulus increased by 8–15% at intermediate temperatures, indicating matrix changes.

Cite This Study

Karimi et al. (2026) studied this question.

synapsesocial.com/papers/69af949670916d39fea4b971 https://doi.org/10.1016/j.rineng.2026.109946

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Implication

Examines tensile performance and crack evolution in polypropylene fiber-reinforced composites, indicating significant strength loss with temperature exposure.

Thermal Degradation of Polypropylene Fiber-Reinforced Cementitious Composites, Tensile Behavior and Crack Evolution Assessed by Digital Image Correlation

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Implication

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Cite This Study

Thermal Degradation of Polypropylene Fiber-Reinforced Cementitious Composites, Tensile Behavior and Crack Evolution Assessed by Digital Image Correlation

Discussion

Member takes

Implication

Key Points

Cite This Study

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