The quality of our products has been of great pride to us during all this time. Thanks to its calcination process the calcium oxide we manufacture has certain features, which differentiates it from the rest of limes in the market. With a high level of reactivity it is ideal for certain industrial processes. Our products are applied into the construction industry for soil stabilization, mortars manufacturing, calcium silicate bricks production, public construction sites, etc...
Manufacturing of mortars and plasterings
Lime mortars are resistant, bear climate changes and have a high water absorption capacity.
Lime is a material especially indicated for finishing and decorating mortars, plastering ready for use (rendering), white-washing and the working of fresco supports.
Its colour, plasticity, adherence, workability, the achieved polished surface, emboss the façade and the walls.
The recarbonatation to the air helps the wall breath, so that the always difficult to avoid humidity can move out.
Lime, in general, is the main component of mortar and is the oldest cementitious material known to mankind.
Calcium silicate bricks production
They are obtained with 10% quicklime and 90% sand rich in silicate. They are moulded by pressing lime with sand and water. The hardening is done with water vapour under pressure in autoclaves. Finally they are cooled down resulting in its recarbonatization.
In the calcium silicate bricks the use of lime activates the puzolanic reaction with the silicate sand and clay producing bricks of high mechanical and thermal performance.
An instable clayey soil with lime modifies its physical properties and transforms itself into a stable and durable plate. Lime profoundly modifies the physical characteristics of the soil; it lowers the liquid limit and the plasticity index. It increases the plastic limit, the CBR and resistance to compression. Its high index of puzolanic receptiveness allows transforming the inert components; it agglomerates the fine clay particles and transforms a highly plastic soil into a very stable one. The ionic exchange (Ca++ / Na + H+) and the formation of silicates (3CaO. SIO2 ; 2CaO. SiO2) are the fundamental reactions.
The hydration of lime also plays an important role:
CaO + H2O –>Ca(OH)2 + 278 Kcal/Kg CaO.
Humid soils dry due to the addition of lime and herewith its elastic limit.
Its sub-base and basement layers stabilized with lime form a resistant barrier to water, superficially as well as in a capillary level. Soils are resistant to frost and delays in construction caused by rain are reduced.
A high value for the specific surface and a percentage of useful CaO with a purity rate above 90% are fundamental for its good behaviour, alongside well classified grading.
In bituminous mixtures
In asphaltic cements and bituminous materials, the replacement of a part of the fillers by a correctly dosed lime improves water resistance of the pavement, decreasing ageing and cracks. The affinity of lime with bitumen and aggregates strengthens the fittings inside of the structure. The end-result is a homogenous, compact and durable asphaltic layer without cracks.