Mortar of lime and natural cement for the restoration of built cultural heritage

Kelouaz khaled1, Guebboub lakhdar salim2, Deloum said3, Hamiene Massouad4

 Abstract The cultural heritage built in Algeria shows the diversity and the durability of building materials in use. The need to restore the archaeological monuments requires the use of the long-lasting, successful and compatible materials used by former builders. We propose in this study the exploitation of the natural cement as an addition in the formulations of mortars of restoration.

Samples were developed with air lime with the addition of (5%, 10% and 15%) natural cement. The results of analysis of the physical and mechanical characteristics showed an improvement of the properties of elaborate mortars.

The content of 10% of addition gave better results in terms of absorption (16.60%) and mechanical resistance to the compression (1.62 MPa) and to the flexion (0.10 MPa), with regard to the other percentages, it indicates a compatible use with the restoration in old buildings.

Keywords Mortar, Lime, Natural cement, Characteristics, Restoration.

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