Construct Earthquake Resistant Buildings by Simple Means
Then, fix a chicken mesh on the joint of RCC and masonry wall. The mesh should be 6 inches wide. Nail this mesh at 230mm intervals only.
Use the plumb (also the line) from top to bottom to ensure the accuracy of the plastering. The plastering here should be of a single coat of 10-12mm only. Also, you must check all the edges.
Handle jutting out stuff
Run a thorough check to see if all the features of the building on the outside are showing okay. These may include elevational features and windows and doors, etc. Your finished work should echo the architectural drawings.
Dampen the surface
After ensuring all masonry work has finished. Then wet the external surface. This should be done one or two days prior to plastering.
For these reasons, every constructor should keep in mind some basic steps in order to do it right. As such, the following checklist can be very helpful in external plastering work in building construction.
Clean the surface
Make sure that the external surface of the building is clean. That means the block or brick masonry and concrete surface. These should be clear of dust, oil grease, loose materials, mortar dropping, nails, wood, metal strips, etc. You should have an even, smooth surface to work on. Otherwise the bonding will not work.
You need to erect a scaffolding in order to reach the entire outside surface. Conversely, you might be needing a double scaffolding as well. You have to do this without making a hole in the wall. Since in this phase you must not damage the wall in any way. However, if authorities permit, you can take support from other parts of the building.
Mortar and socketing
The gaps between the masonry and the beams that show on the outside needs to be filled with rich mortar. Also, you need to finish out the socketing works.
Prepare the mix
Sieve and wash the sand properly so that it doesn't have silt content more than 8%. Then take 1:5 ratio and mix in the machine. Do streamline this process so that the mixed mortar can be placed within half an hour.
Put on first coat
Start plastering. The first coat should not be more than 10-12 mm thick. Also, there shouldn't be any uneven surfaces. You need to wait 5 days for the first coat to cure.
Put on second coat
Use wires to make the first coat surface uneven before putting on the second coat. This will create better bonding. This coat should be 6-10mm thick only. Wait for 7 days for the second coat curing.
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