LITERATURE REVIEW
The historic mine shafts have been collapsing and this is a major concern as far as public safety
is concerned. The collapse of majority of the shafts is attributed to the failure after deterioration
of the masonry materials which has been used for lining operations. In the construction of the
modern shafts, the provision of support is achieved mainly by the use of the concretes. The
analysis of the stability of the shaft would call for proper understanding of the properties of the
materials which has been used for the lining activities. The behaviour of both concrete and
masonry is considerably affected by the long term exposure to water depending on the
environment. It ids for this reason that the paper focuses on the effects of weathering on the
masonry constructed structures. The historical buildings have their structural skeleton made up
of stone bricks or clay bricks in some cases. In some cases they are made of the blocks which are
bonded with mortar so that a large variety of texture can be composed (Gentilini et al 2012).
The performance of the elements of masonry in terms of the structures has undergone evolution
during the previous years as large material science and technical knowledge reveals. In the
previous years, there has been development of different agents which are used in the bonding of
the bricks. In this particular long list, gypsum was the first one to be discovered in the period
around 2500 B.C. This was later followed by the lime water. In the present studies, there are
several additives which have been discovered and they make the modification of the physical
properties of mortar to be much easier. The presence of the ovens that have very large
capabilities of very high temperatures allows for the modification of the mortar’s special
properties.
Deterioration of Mortar through chemical Causes

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Literature Review | CIVIL ENGINERING

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