II. Methods

II.1. Investigation and Documentation:
Letter of Venice , Art.9: (need information)
El Pilar has been investigated by a multidisciplinary team, the archaeological investigation had included a restorer who coordinates the following actions:
-All the investigating actions will be tide to a topography system established previously.
-The graphic documentation has to be coordinated for the multidisciplinary team.
-These has to be present a permanent restorer and a conservator.
-In case of a discovery of mosaic pieces, which have to be located on a map with a detailed location for future investigations. They should be place in a safe place.
-All the architecture has to be well documented.

II.2. Stabilization or Consolidation
Consolidation: In the architectural restoration field, it means to stabilize the structures. It can include the following process:
-“Embone”: It comes from Italian and means to do something right. It is the application of a rustic material (stones and agglutinant) that is applied to old stuffing. It is prudent in all cases to apply an embone coat in order to protect the monuments from the rain.
-To gather: It is a process where we integrated the agglutinant to “juntas de sillares”.
-Resine on stucco: It is the mixture of water and lime sand. It consists in applying this resin to cracks.

II.3. Anastilosis or Reintegration

Art. 15, Letter of Venice(need information)
-Anatilosis:
This method consists in the recovery of the dislocated pieces and to put them back together in their original place. This operation we call reintegration. The methodology is between archaeology, restoration and iconography in the case of mosaic sculpture.
For example, the structure 22 of El Pilar, where a mosaic sculpted face was discovered. The investigation has not finish but we are sure that we have some pieces that will need to be reintegrated, in order to create the original image.

Art.9 & Art.13 Letter of Venice (need information)

Comentary: The mentioned concepts are used incorrectly, like the use of concrete or iron in structures that were never present. Aspects that broke the architectural harmony.
Article 8. Burra Chater. “Conservation requires the maintenance of an appropriate visual setting: e.g. Form,scale,Colour,texture and materials. No new construction, demolition, or modification which would adversely affect the setting should be allowed. Environmental intrusions which adversely affects appreciation or enjoyment of the place should be excluded.”

The visual aspects are very important, it is the harmony between the following elements: form, scale, color, texture and materials. In other words: architectonic composition (Venice Chater).
Article 9. Venice Chater. “Reconstruction is limited to the reproduction of fabric, the form of which is known physical and/or documentary evidence. It should be identifiable on close inspection as being new work”.
Conclusion: The complements have to have harmony with the form, scale, color, texture and materials. It will require a close inspection.
Case of El Pilar:
-It will depend on the architectonic composition.
-It will need to apply a line with aluminum nail in order to distinguish the original parts from the added ones.
-The object will be to understand the restored piece without erasing its historical value.
-It would not be add structural complements if it does not exist. Like destroyed roofs, or a flight of steps that are no longer In Situ.
-The complements only are justified only for esthetical or technical reasons.
-The technical reasons are related to the monument stability.
-The esthetical reasons are related with the architectural interpretation which is transmitted to the visitors. It will be limited for the evidence that was found.
-The quantity of complements will depend on an analysis of the functional interpretation.

***A continuación falta tradución más detallada*** 

III. Restoration Treatments applicable to the structures of El Pilar.

III.1. Previous steps to be investigated and restored
1) It will be marked with 2X2 m squares. And will determine the units to be excavated.
2)Documentation coordinated between archaeology and restoration, using field notes, drawings and photographs.  
3)

-Embones
-Use of horizontal stamps
-Regarding the structural damages
-Gather the stones of the walls
-Resine on stucco

III.3. Anastilosis or Reintegration

III.4. Integration or indispensable complements

Protective covers: The monuments that were built on El Pilar were made with limestone. It is recommended that during the investigations and restorations, we use temporal or permanent protectors. Depending on the monument state.

IV. Materials

IV.1.Stone
IV.2.Limestone
IV.3.Portland concrete
IV.4.Sand or Sascab
IV.5.Water
IV.6.Mortars

The plan of conservation of monument and the site, should be integrated with the objectives to conserve the natural state, then the experience has taught that the architectural monuments will conserve better the environment and the microenvinroment