Behavior of Concrete Block Masonry Under Axial Compression

10.14359/6965 ◽  
1979 ◽  
Vol 76 (6) ◽  
Keyword(s):  
Axial Compression ◽  
Concrete Block

scholarly journals Axial compression behavior of concrete masonry wallettes strengthened with cement mortar overlays

2008 ◽  
Vol 1 (2) ◽  
pp. 158-170 ◽  
Author(s):  
F. L. De Oliveira ◽  
J. B. De Hanai
Keyword(s):  
Axial Compression ◽  
Cement Mortar ◽  
High Strength ◽  
Concrete Block ◽  
Masonry Wall ◽  
Compression Tests ◽  
Steel Mesh ◽  
Mortar Strength ◽  
Theoretical Approaches ◽  
Wall Strength

This paper presents the results of a series of axial compression tests on concrete block wallettes coated with cement mortar overlays. Different types of mortars and combinations with steel welded meshes and fibers were tested. The experimental results were discussed based on different theoretical approaches: analytical and Finite Element Method models. The main conclusions are: a) the application of mortar overlays increases the wall strength, but not in a uniform manner; b) the strengthening efficiency of wallettes loaded in axial compression is not proportional to the overlay mortar strength because it can be affected by the failure mechanisms of the wall; c) steel mesh reinforced overlays in combination with high strength mortar show better efficiency, because the steel mesh mitigates the damage effects in the block wall and in the overlays themselves; d) simplified theoretical methods of analysis as described in this paper can give satisfactory predictions of masonry wall behavior up to a certain level.

Behaviour of concrete block masonry prisms under axial compression

1995 ◽  
Vol 22 (5) ◽  
pp. 898-915 ◽  
Author(s):  
E. H. Fahmy ◽  
T. G. M. Ghoneim
Keyword(s):  
Finite Element ◽  
Axial Compression ◽  
Modulus Of Elasticity ◽  
Failure Modes ◽  
Three Dimensional ◽  
Concrete Block ◽  
Element Model ◽  
Element Analysis ◽  
Dimensional Finite Element ◽  
Three Dimensional Finite Element

A nonlinear three-dimensional finite element model was developed to study the complex behavior of ungrouted and grouted concrete block masonry prisms under axial compression. The model detects crack initiation and traces crack propagation in the masonry assemblage. Variable strengths for blocks, mortar, and grout were used to study the effect of the mechanical properties of prism constituents, and their combinations, on the prism strength and modulus of elasticity. The effect of the number of courses was also investigated. The results of the finite element analysis were used to develop simplified relationships to predict prism strength and modulus of elasticity. Good agreement was observed between the available experimental data and the predicted prism strengths. Key words: compressive strength, concrete blocks, failure modes, finite element, masonry, modulus of elasticity, prisms.

Causes of Failure in the Concrete Block Business

1906 ◽  
Vol 61 (1578supp) ◽  
pp. 25282-25283
Author(s):  
O. U. Miracle
Keyword(s):  
Concrete Block ◽  
Causes Of Failure
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