Quantity of plaster

According to my measure we have 95 m2 of walls to plaster upstairs.
Lets say 100 m2. Now we want to put average of 3cm of plaster so we need:
100 m2 x 0.03 cm = 3 m3 of plaster on the walls.

This means that, according to this site - ratio 1 lime unit each 3 unit of sand

we neeed 400kg of lime for m3 x 3 m3 = 1200kg of lime


Or if we want to be more precised: 3 m3 / 4parts = 0.75 m3 of calce 2.25 m3 of sand

400kg calce / m3 sand means that we need 400kg x 2.25 m3 of sand = 900kg of lime.

900kg / 25k per sac = 40 sacs of lime.

LEGANTE IDRAULICO NATURALE: "1 parte in peso di calce e 3 parti in peso di sabbia (indicativamente kg 350 - 400 ogni m3 di inerte)."

So far I have found the Calix HL 3.5 at 150 eruos per 1 ton

150 + 30 Vat = 180 euros per ton.

or Calix NHL3.5
http://www.italcementi.it/NR/rdonlyres/A74D1913-6727-446E-8CED-69FDFECA2F80/0/calix_NHL_e_calix_NHL_BLANCA.pdf

at 288 euros per ton + VAT 20% = 288+56= 344euros

Plus price of 3 m3 of sand.



Prezzi here - http://www.italcementi.it/NR/rdonlyres/92A80F4A-1A2C-4E3E-A165-7AED0CA94370/0/LISTINOITCdal2Febbraio2009.pdf