What is the Beneficial Difference between Lime Mortar and Portland Cement?
In typical ancient construction, the lime mortar was fundamental building material such as timber, bricks, steels, sands, and stones. Lime mortar used for making binding material, plastering, pointing, masonry jointing, cement slurry, brick lying, external render, internal plaster, limewash, solid floors, and finishing works.
Lime mortar made from ancient traditional lime putty that contained rich in limestone, egg, jaggery, gallnut, etc. that set slowly bit by bit but result in too strong. It also gave high plasticity, water retention, air content, uniformity, band strength, minimize water penetration, durability, elasticity, auto genius healing, compressive strength to lime mortar structures than Portland cement. However, after the invention and development of Portland cement universally at the end of the 19th century, lime mortar usage came to be seen as a slow and out-dated building material, and instant outcomes achieved with Portland cement were taken outstanding.
Since 1950 the consumption of lime mortar in building construction has rapidly declined. Portland cement emerged as a one-stop solution provider of construction industries. With the help of Portland cement, we can make any complex structure in a while, but it is not possible in a lime mortar building as the lime mortar is getting to set excessive time of period.
The repair of the building constructed by Portland cement led to rising technical problems, especially with the moisture and water retention of structures. But the repair and conservation of the building made of lime mortar led to trouble-free.
Lime mortar and Portland cement should not be used collectively in constructing the building that leads to erosion on the structure and eventually doomed structure.
Nowadays the usage of lime mortar is rapidly increasing as the devastation caused by the use of Portland cement in traditional construction and renovating and conservation techniques become more widely known.
The durability of lime mortar is more than 300 years, ie., Charminar from Hydrabad and Red Fort from Delhi (in Red Fort, sandstone bound by lime mortar). Portland cement's durability has not exceeded more than 50 years.
Portland cement assimilates oxygen from our buildings whereas Lime mortar assimilates carbon dioxide from our buildings, therefore human life span soared high during ancient times when carbon dioxide was absorbed by lime mortar and providing us with more oxygen in our living environment.
Lime mortar reflects heat and reduces heat by 6 to 8% inside the building but Portland cement absorbs heat, retains heat, and emits heat in the building as in the environment.
Lime mortar keeps the heat constant inside the building even atmosphere too cold, but Portland cement reflects the atmosphere heat/cold respectively inside the building.
Lime mortar price depends on the quantity of lime mortar to be consumed. If you buy less quantity of lime mortar the price is higher than Portland cement but if you buy more quantity of the lime mortar the price is lesser than Portland cement.
Lime mortar buildings need not be painted but Portland cement buildings are painted after construction and also periodically.
Lime mortar-based buildings enlarge, constrict, and flexible according to temperature and moisture. The use of lime mortar also permits damp to be assimilated to a finite degree and then evaporate harmlessly away. Our ancestors acknowledged that rain and rising damp were bound to discover a way into the walls of their buildings, so they built their home’s walls dense, and the soft, porous lime mortars and provides acted as a wick to draw the moisture away once again, but Portland cement does not have such a future.
Lime mortar has higher embodied energy than Portland cement.
It is possible to produce lime mortar on a small scale but Portland cement is not possible to produce a small scale.
One of the greatest advantages of lime mortar is its recyclability. Lime mortar can easily be separated from brickwork, the gentle adhesive properties of lime mortar make possible full re-use of other materials, but it is not possible in Portland cement.
Lime mortars are more liable to settlement and movement associated with seasonal weather changes in environmental conditions.
Lime mortar is used for renovating and conservation of ancient buildings across the world and disclosing the ancient cultures and traditions of upcoming generations.
Lime mortar has higher flexibility than Portland cement.
Lime mortar harmless substance than Portland cement for construction labors.
Finally, Civil engineers, Architects, Construction experts, and Environmentalists have realized the importance of the lime mortar and they are supporting eco-friendly constructions through lime mortar.
Kindly contact us for ancient building renovation or conservation and construction of new buildings through lime mortar at https://www.charisconstructions.com/