Nr.2 - ALPA - Albanian Papers

Kabashi & KrasniqiThe content of materials are polymers andadditive in depend of position where it is applied.In general the essential condition is theconnection between two materials, the basematerial and new material that will be applied. Inthis case is important to reach compatibility inthe behavior of the both materials, so that theybehave as a whole.It is particularly important their behavior in thefirst phase, deformations and creep must becontrolled to protect them from eventual cracksthat can cause problems in the function of thestructure itself.To make this clearer we will present sometechnical characteristics of these materials in thefollowing Table 1.Class based on StandardR4EN 1504-3TypeCCDensity (gr/cm 3 ) 1.35Content of solid substance 100(%)Content of chlorides (%) ≤0.05Compressive strength ≥45(after 28 days)(MPa) EN 12190Flexure strength (MPa) EN Not request196/1Module of elasticity (GPa) ≥20 (after 28 days)EN 13 412Strength relating to the ≥2 (after 28 days)concrete EN 1542Depth of penetration Not request(mm) EN12390/8Table 1. Physical and mechanical properties ofmaterials used as mortar for repairing [3]Picture 5. Repairing steps in the water tankThe execution of repairer is linked with animportant element, which is the examination orevaluation of repairing compared with therequirements set by the project.In the above mentioned projects the requiredtechnical conditions have been met and theexaminations have shown a safe performance.Time is the key factor in this type of repairs. Forthis reason we present that the Water Tank inBatllava is checked every year for water loss, andAKTET Vol. IV, Nr 1, 2011 341