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<p>Masonry walls continue to play a vital role in modern construction due to their functional benefits in partitioning, privacy, and acoustic insulation. However, their inherent brittleness and limited tensile capacity restrict structural performance, particularly under in-plane and out-of-plane loading. This study investigates the efficacy of Engineered Cementitious Composites (ECC) as a plastering material for enhancing masonry walls. Eight wallette specimens were fabricated, including one pair of conventional specimens plastered with 1:5 cement–sand mortar and three pairs of ECC-strengthened specimens incorporating different fibre types. Static loading tests were conducted under both in-plane (axial compression) and out-of-plane (flexural) conditions, with height-to-length ratios ranging from 1.0 to 1.5 to capture failure modes such as rocking, toe crushing, and diagonal splitting. Results indicate that ECC-strengthened masonry significantly enhances structural performance by reducing crack propagation and increasing load-carrying capacity compared to conventional masonry. Under in-plane loading, polyvinyl alcohol (PVA) fibre-reinforced ECC improved load resistance by 44%, while hybrid ECC achieved nearly 197% higher ductility relative to the control masonry. Similarly, out-of-plane performance was most pronounced in hybrid fibre-reinforced ECC, which exhibited approximately 200% and 140% increases in flexural strength and ductility, respectively, due to enhanced crack-bridging mechanisms. Overall, the findings establish ECC plastering as a cost-effective and sustainable strengthening method, offering improved strength, ductility, and crack control compared to conventional plastering systems.</p>

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Performance evaluation of in-plane and out-of-plane masonry walls with fibre-reinforced ECC plastering

  • 期刊论文

  • 发表日期：

    2026年5月4日

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  • Aravind Babu Sathya Rajakumar,
  • N. Shanmugasundaram,
  • S. Praveen Kumar

摘要

Masonry walls continue to play a vital role in modern construction due to their functional benefits in partitioning, privacy, and acoustic insulation. However, their inherent brittleness and limited tensile capacity restrict structural performance, particularly under in-plane and out-of-plane loading. This study investigates the efficacy of Engineered Cementitious Composites (ECC) as a plastering material for enhancing masonry walls. Eight wallette specimens were fabricated, including one pair of conventional specimens plastered with 1:5 cement–sand mortar and three pairs of ECC-strengthened specimens incorporating different fibre types. Static loading tests were conducted under both in-plane (axial compression) and out-of-plane (flexural) conditions, with height-to-length ratios ranging from 1.0 to 1.5 to capture failure modes such as rocking, toe crushing, and diagonal splitting. Results indicate that ECC-strengthened masonry significantly enhances structural performance by reducing crack propagation and increasing load-carrying capacity compared to conventional masonry. Under in-plane loading, polyvinyl alcohol (PVA) fibre-reinforced ECC improved load resistance by 44%, while hybrid ECC achieved nearly 197% higher ductility relative to the control masonry. Similarly, out-of-plane performance was most pronounced in hybrid fibre-reinforced ECC, which exhibited approximately 200% and 140% increases in flexural strength and ductility, respectively, due to enhanced crack-bridging mechanisms. Overall, the findings establish ECC plastering as a cost-effective and sustainable strengthening method, offering improved strength, ductility, and crack control compared to conventional plastering systems.