Sand and gravel are raw mineral materials which are consumed in building industry. The demand for raw building materials, besides the infrastructural innovations, can be explained by the greatly growing number of flat-buildings in the recent years as for concrete production gravel is indispensable and for the plaster-work sand is necessary. For road constructions the dead is used which is the by-product of gravel-mining. For garden constructions and filling up gardens the good quality black soil, humus is greatly wanted. For now, these products are available to our customers. From the spring of 2008 we are going to offer more types of products within these product-groups due to the classification units.
Gravels are utilized firstly by building industry. The high-quality sand is used for water filtering, chemical filtering and park constructions. The gravel can be formed through any physical rock- crumbling, its breaking into small pieces and transportation of rubble.
If you examine the components of gravel layers or bed deposits in rivers, you can see that the material of gravel is mostly quartz and quartzite. The reason of this is that among the mineral components of rocks the most resistant against physical and chemical effects is quartz. Being so, it can take longer transportation and thinning than any other rock component.
The quality examination of gravel is very important in gravel-mining, since for concrete production only the gravel featuring the determined characteristics is useable. Therefore size of grain; mud, lime and organic matter content and its mineral components are examined. For meeting the widest scale of demands possible gravels are classified by grain size.
Sand is used in the building industry for making plaster and concrete. We mine the sand from eocene, oligocene, miocene and pannon layers, and pleistocene accumulations in rivers.
The dead is used for foundations of road constructions. Foundations are done with rough rubble then it is covered with finer (about 2 cms) basalt or andesite rubble bedded in asphalt.
Good quality black soil for filling up gardens and for park constructions.