Bond strength and compressive stress-strain characteristics of brick masonry

Abstract In this study, masonry and its material characteristics such as compressive strength of masonry prisms, bricks, mortars as well as bond strength (i.e., flexural and shear bond strengths) of brick and mortar joint are determined experimentally. The compressive stress-strain curves of brick, mortar, and masonry have been plotted and five control points have been identified on the stress-strain curve of masonry. The control points on the stress-strain curve would be useful for performance based design of masonry. Four types of bricks and three different types of mortars have been used in the experimental study. The compressive strength of masonry and flexural bond strength are determined with a test on five bricks stack bonded prisms. A bond wrench apparatus fabricated as per ASTM standards was used for flexural bond strength test. The shear bond strength of masonry is predicted using masonry triplet. It is observed that the concrete bricks have low flexural as well as shear bond strengths due to less contact area.

[1]  Bond-strength performance of hydraulic lime and natural cement mortared sandstone masonry , 2015 .

[2]  Fouad M. Khalaf,et al.  New Test for Determination of Masonry Tensile Bond Strength , 2005 .

[3]  Durgesh C. Rai,et al.  Stress-Strain Characteristics of Clay Brick Masonry under Uniaxial Compression , 2007 .

[4]  H. Kaushik,et al.  Uniaxial compressive stress-strain model for clay brick masonry , 2007 .

[5]  Adrian Page,et al.  Biaxial Stress‐strain Relations for Brick Masonry , 1985 .

[6]  K. S. Gumaste,et al.  Strength and elasticity of brick masonry prisms and wallettes under compression , 2007 .

[7]  J. Ingham,et al.  Uniaxial Compressive Strength and Stiffness of Field-Extracted and Laboratory-Constructed Masonry Prisms , 2014 .

[8]  R. Hanley,et al.  Flexural bond strength of natural hydraulic lime mortar and clay brick , 2010 .

[9]  B. V. Venkatarama Reddy,et al.  Influence of shear bond strength on compressive strength and stress–strain characteristics of masonry , 2008 .

[10]  Manicka Dhanasekar,et al.  Characterisation of thin layer polymer cement mortared concrete masonry bond , 2015 .

[11]  Dina D'Ayala,et al.  Flexural bond strength development of brickwork using natural hydraulic lime (NHL) mortar , 2008 .

[12]  J. Ingham,et al.  Compressive, Flexural Bond, and Shear Bond Strengths of In Situ New Zealand Unreinforced Clay Brick Masonry Constructed Using Lime Mortar between the 1880s and 1940s , 2014 .

[13]  Manicka Dhanasekar,et al.  Flexural and shear bond characteristics of thin layer polymer cement mortared concrete masonry , 2013 .

[14]  G. Sarangapani,et al.  Brick-Mortar Bond and Masonry Compressive Strength , 2005 .

[15]  S. Deodhar.  Strength of brick masonry prisms in compression , 2000 .

[16]  Gang Li,et al.  Strength and stress–strain characteristics of traditional adobe block and masonry , 2013 .

[17]  Pankaj Munjal,et al.  Role of water/cement ratio on strength development of cement mortar , 2015 .

[18]  Paulo B. Lourenço,et al.  Stress-strain behavior of concrete block masonry prisms under compression , 2012 .

[19]  B. V. Venkatarama Reddy,et al.  Enhancing Bond Strength and Characteristics of Soil-Cement Block Masonry , 2007 .