Re: Re: reorganisation and destruction of irish catholic churches
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It just defies belief that they could have made such a balls of & wasted so much time & resources on that “restoration”? someone has to be held accountable for this disastrous waste of parisherners money..I wonder was it that they used an incorrect mix of mortar when pointing, did they not use a traditional self-healing lime putty mortar or is this mess simply down to inproper preperation work.
From Wiki. http://en.wikipedia.org/wiki/Lime_mortar
Lime mortar is a type of mortar composed of lime, an aggregate such as sand, and water. It is one of the oldest known types of mortar, dating back to the 4th century BCE and widely used in Ancient Rome and Greece, when it largely replaced the clay and gypsum mortars common to Ancient Egyptian constuction.
With the introduction of Portland cement (OPC) during the nineteenth century the use of lime mortar in new constructions gradually declined, largely due to Portland’s ease of use, quick setting and compressive strength. However the soft, porous properties of lime mortar provide certain advantages when working with softer building materials such as natural stone and terracotta. For this reason, while OPC continues to be commonly used in brick and concrete construction, in the repair of older, stone-built structures and the restoration of historical buildings the use of OPC has largely been discredited.
Despite its enduring utility over many centuries, lime mortar’s effectiveness as a building material has not been well-understood; time-honoured practices were based on tradition, folklore and trade knowledge, vindicated by the vast number of old buildings that remain standing. Only during the last few decades has empirical testing provided a scientific understanding of its remarkable durability.