查看文章

Clay bricks were amongst the first artificial materials produced by men for building purposes that proved to be easy to produce, resistant, and durable, as attested by the numerous examples that can be seen all around the world that endured centuries of rough climacteric conditions and wars. Clay bricks are simply produced by mixing clay and water. Hardening methods evolved from sun drying to industrial ovens, which allowed strength and durability to increase. While clay brick's durability was initially affected by inadequate raw materials and usage contamination, today, urban pollution and incorrect use of materials fosters an even more rapid deterioration of existing bricks, adding to the general lack of maintenance observed in most buildings. Nevertheless, only by understanding how bricks deteriorate was a series of methods and materials established for the repair of these bricks, extending their life expectancy.