Their history goes back about 10,000 years predating the Romans and Egyptians. Lime plasters are the oldest type of plasters known to man. On the downside: being so soft, they easily break down in the presence of humidity and salts. Gypsum plasters are mainly used as decorative finishes on top of cement plasters, Being very soft they have excellent workability resulting in silky smooth finishes. Lack of research about their long-term performance: lack of long-term data about the aging and longevity of cement as well as some of its undesirable characteristics also fueled the hype that it is a better material.Novelty: in the Industrial Era cement, the new building material, was regarded by many as better, more performant material in comparison to existing lime plasters.Cement plasters set much quicker than traditional lime plasters allowing faster building.
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