Concrete: a multifaceted building material to be maintained
Concrete: what is it? Information, description and composition
The concrete also known as conglomerate , and abbreviated CLS , is an artificial source material that finds many applications in construction and is the most common material used in construction. Once hardened, its appearance makes it very similar to that of a rock.
Binder : this element reacts with water, hardening, and gives rise to a perfectly monolithic product with a hard consistency, with a rocky appearance. Various types of binders can be used for the use of concrete in construction. Usually hydraulic binders are used, which are able to harden even submerged in water. These include hydrated lime (calcium hydroxide) and cement.
Inert / aggregates : these components are natural, deriving from quarries, or obtained by crushing larger rocks. There are 3 macro categories of aggregates: sand, of the stone type; gravel (crushed stone), a stone with a thicker grain than sand; special aggregates with honeycomb structure, such as pumice and expanded clay, which boast particular thermal and acoustic insulation properties.
Additives including fluidifiers, antifreeze, retardants and aerants.
Concrete: how it is prepared
The composition of the concrete varies considerably according to the intended use and the desired properties. Typically they mix: 300 kg of cement, 600 kg of sand, 1300 kg of gravel, 120 liters of water. The mixture is made on site in the special concrete mixer. By varying the percentages of the components of the mixture, it is possible to obtain different types of concrete, in addition to the common ones. For instance:
.lightened concrete , through the addition of aerating additives;
.shielding concretes , where part of the sand is replaced by materials with a higher molecular weight, such as barium;
.bituminous or asphalt concrete , notoriously used to pave roads.
Modern construction could not do without the use of concrete: from bridges to tunnels, from roads to aqueducts, to the structural parts of buildings, there is no construction that does not present this mixture as part of its architecture.
Weber: your reference for concrete
Weber is a company that operates successfully in the construction premix sector, and has an articulate attention to the theme of restoration and decoration of concrete. The solutions proposed regarding CLS are technologically advanced, thanks to constant research, and in line with all current regulations. The webertec range dedicated to the restoration of concrete offers only safe, certified and long-lasting effective products.
concrete Material used in construction, also called conglomerate ; it is obtained by hardening the mixture of a stone aggregate, consisting of crushed stone or gravel, sand and any additives, with a binder (cement or lime) and water. I c. with lime and pozzolan ( opus cementicium of the Romans) or those with hydraulic lime, widely used in the past, are now used exclusively for structures subjected to limited stress or having a filling function. On the other hand, c. cementitious, used in reinforced concrete structures.
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