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Indications for the dry laying of Line Maxima

Foundation
Realise the foundation with the same characteristics like those required for the construction of conventional pavings as well for its thickness as for the composition.
The characteristics of the foundation have to be evaluated with regards to the type of soil and its deformability, besides the type of charges the paving will be submitted. In any case it has to be:
• well thickened. Prepare the plane of the underground finishing, by realizing it using different types of material, in order to bring again the foundation to the height and slope of the project. For street with particularly heavy traffic and in presence of not cohesive soils, it is advisable to use binding materials (poor single grain concrete)
• Draining, a characteristic, which has to be always guarantied with proper devices. The finishing plane hasn’t to allow to the sand, which is the bedding material for the slabs, to go in the foundation and to create in this manner empty spaces under the pavings, therefore: place the geotextile or the nonwoven textile made of inorganic imputrescible material, which permit a perfect drain when they are laid directly on the finishing plane, and do not allow the passing of the sand particles.
• corresponding to the thicknesses of the project.
• without polluting impurities.
Make normative reference, as to what is foreseen by the rules in force in subject of street foundations.

Side borders
This side border has the function of containment of the paving, of the foundation and of the layer of sand, when they are submitted to mechanical solicitations. Those borders are normally realized, by fixing the terminal slab with concrete or with suitable containing forms in iron. Everything has to be completely fixed in an appropriate manner.

Slope for the water discharge
Although the paving is able to discharge the water in the surface through the joints between the slabs, it is necessary to foresee slopes (at least 2%) exactly like those for conventional pavings, even if the line Maxima has been designed with spacing wings, which give a draining capacity. Line Maxima has to be laid slightly higher (approximately 5 mm) than the draining shafts.

Laying material
The bedding material has to formed by sand which contains not more than 3% of weight in slime, clay or crushing residuals. The granulometry will not be higher than 7 mm and with at least 80% of the content below 4 mm. The thickness of the sand layer has to be of 30÷50 mm, when it is compact. The slopes can’t never been taken by changing the thickness of the sand layer, in order to avoid differential beddings of the paving, which would compromise its evenness.

Vibration for compactness
As a rule the laying is done by hand by approaching the tiles dry till the compactness happened; the paving has not to be submitted to other loads except those of the layers‘ crossing and his equipments. Line Maxima has to be laid approximately 1 cm over the projects‘ height; The following compactness will bring the paving to the desired level. Close to perimetrical curbs or other manufactures it is necessary to cut the manufactures with a suitable trimmer. The tiles have to be vibrated by using a vibrating compactor with a gummed plate, in order to avoid rulings and/or breakings.

Finishing sealing
As soon as the compactness happened, a layer of fine riddled sand has to be put on the tiles for a first clogging of the joints. Further layings of sand have to be done by the user and they will permit a complete closure of the joints, which will guarantee a perfect self blocking between the elements.

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