Bond and Compressive Strength of Masonry for Locally Available Bricks

Abstract

The bond between brick and mortar plays an important role in the ability of masonry to resist loads. The single and most important property of mortar is bond strength, and it is critical that this bond be complete, strong, and durable. The mechanism of bond between masonry units and mortars is known to be influenced by large number of factors. This paper presents an outcome of a study conducted on tensile and shear bond strength of masonry and compressive strength of masonry. It was also investigated to develop a possible relationship between shear and tensile bond strength. An experimental program was conducted to determine the impact of bond strength on compressive strength of masonry. Tensile bond strength was determi led by testing brick couplets and shear bond strength by testing triplets as recommended in relevant standards. Wall panels were tested to find out the compressive strength of masonry. The effect of different factors such as grading of sand, soaking time of bricks and type of bricks on the bond strength as well as the compressive strength of masonry was also found. The outcome of this research will have a higher benefit to the construction industry where masonry structures form a substantial portion.

Influence of exterior infill walls on the performance of RC frames under tsunami loads: Case study of school buildings in Sri Lanka

“…Hence, the non-linear behaviour of the infill struts is well represented by the constitutive material Concrete01 in OpenSees. The mechanical parameters for the Sri Lankan local masonry are taken from the study by Konthesingha et al [43]. The peak compressive stress of the masonry is assumed as 1.4 MPa, corresponding to a peak strain of 0.0018, and the ultimate strain as 0.003.…”

Influence of Mixing Water Content and Curing Time on Bond Strength of Clinker Masonry: The Wrench Test Method

“…Analyzing the literature on the subject, one can find different approaches to the determination of bond strength over the past few decades [ 5 , 6 , 7 , 8 , 9 ]. In the case of shear bond strength (e.g., [ 10 , 11 , 12 ]), it is equated with shear strength in the plane of the masonry, determined by a three-point shear test, such as in accordance with EN 1052-3:2005 [ 13 ]. This case is somewhat different with regard to flexural bond strength.…”