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<p>The present study is intended to study the performance of masonry panels under compression and shear with the inclusion of two different types of thin reinforcement, namely expanded metal mesh (EMM&#xa0;single layer/double layer) and composite mesh. The masonry unit types used in the present investigation include burnt clay bricks and solid concrete blocks, as these are very commonly preferred masonry units, especially in urban and semi-urban regions in India. Parameters such as compressive strength, elastic modulus, masonry efficiency, area under the stress–strain curve, and associated failure patterns were assessed by testing the masonry prisms under uniaxial compression. The diagonal compression test was carried out to examine the in-plane behaviour of masonry wallettes. Corresponding shear strength and associated failure patterns were noted. Enhancement in the compressive strength of block prisms with thin reinforcement in the bed-joint was observed; however, surprisingly, a marginal reduction in the compressive strength of brick prisms with thin reinforcement in the bed-joint was noted. Enhancement of shear strength of masonry wallettes, in both bricks and blocks, was observed in the presence of thin reinforcement in the bed joint comprising the expanded metal mesh type. However, in the case of prisms/wallettes with composite mesh, a reduction in compressive strength and shear strength was noted. The major benefit of introducing thin reinforcement is noted in enhanced strain capacity and the complete avoidance of brittle failure.</p>

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Effect of thin reinforcement in bed-joint on the compressive and shear strength of brick and block masonry- an experimental investigation

  • 期刊论文

  • 发表日期：

    2025年2月22日

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  • Siddharth B. Baeen,
  • Manish S. Dharek,
  • S. Raghunath,
  • S. Vinay,
  • V. S. Kishor,
  • Mohammed Aejaz

摘要

The present study is intended to study the performance of masonry panels under compression and shear with the inclusion of two different types of thin reinforcement, namely expanded metal mesh (EMM single layer/double layer) and composite mesh. The masonry unit types used in the present investigation include burnt clay bricks and solid concrete blocks, as these are very commonly preferred masonry units, especially in urban and semi-urban regions in India. Parameters such as compressive strength, elastic modulus, masonry efficiency, area under the stress–strain curve, and associated failure patterns were assessed by testing the masonry prisms under uniaxial compression. The diagonal compression test was carried out to examine the in-plane behaviour of masonry wallettes. Corresponding shear strength and associated failure patterns were noted. Enhancement in the compressive strength of block prisms with thin reinforcement in the bed-joint was observed; however, surprisingly, a marginal reduction in the compressive strength of brick prisms with thin reinforcement in the bed-joint was noted. Enhancement of shear strength of masonry wallettes, in both bricks and blocks, was observed in the presence of thin reinforcement in the bed joint comprising the expanded metal mesh type. However, in the case of prisms/wallettes with composite mesh, a reduction in compressive strength and shear strength was noted. The major benefit of introducing thin reinforcement is noted in enhanced strain capacity and the complete avoidance of brittle failure.