Lime grease cream from Puglia, Italy
LA MARSEGLIA CALCE S.R.L. IT IS LEADER IN THE PRODUCTION OF TRADITIONAL LIME GREASE CREAM.
Obtained from the calcination of our Apulian limestone, with a long gradual wood firing for 14/15 days at a sweet temperature, made in the old vertical vat oven with natural draft. It starts from about 70/120 ° C (limestone drying phase to avoid sudden thermal shocks) gradually increasing the firing safely to reach the final calcination temperature of the limestone which is completed at (840 ° - 860 ° C).
This balanced and controlled cooking temperature of our Apulian carbonate of lime, which varies from 0 ° C up to 840 ° / 860 ° C, makes it stable and pure from the alterations or inclusions of by-products deriving from cooking at high temperatures.
That is, if the limestone is cooked at this mild temperature, it does not undergo any thermal expansion.
While if the thermal expansion phase is triggered (initial firing with high temperatures), once applied, the consequent deterioration of the binder and of the mixed sands would result. This is why LESS calcium carbonate expands (at high industrial firing temperatures from 1,100 ° C to 1,300 ° C) better withstands adverse climates and waters responsible for the deterioration of wall structures and more.
This ancient method of gradual cooking (it is feasible only in the ancient vat ovens with natural draft with indirect flame) it is essential to obtain a homogeneous, porous, friable, reactive calcium oxide, which, immersed in abundant water, reacts by releasing a violent heat bringing the calcium oxide to a boil and its disintegration into liquid pulp, giving shape to a dense milk lime (calcium hydroxide). Finally it is poured into the maturing tanks, where it matures for long months, obtaining an excellent high purity binder with excellent plasticity, workability as well as providing a greater yield in the dough. with a high calcium hydroxide content> 94.7% which certifies it as a fatty calcitic binder.
It is a binder widely used for all construction sectors, whether it is Monumental, Historical Art, Archaeological, Green Building and Civil Construction.
ECOLOGICAL AND NATURAL BINDER
excellent classification of the calcitic product CL / 90S PL, (free from impurities and various additives) CE certifications UNI-EN 459 -1 (GP) (CR) free CaO content of> 94.7% UNI EN 459-2, total content of (CAO + MGO) at 95.1% UNI EN 459 - 2. Free lime water content of 55.7% UNI EN 459 - 2.
TRADITIONAL AIR-GRIP BINDER
composed of calcium hydroxide, its mass is creamy with a fine to extra-fine granular structure, San Giovanni white, with excellent characteristics in density, plasticity, adhesiveness and thixotropicity, remaining compact in its almost greasy softness.