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The presence of soluble salts in the Plaster making material as well as building materials is due to _________________

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The presence of soluble salts in the Plaster making material as well as building materials is due to _________________

(a) Flaking

(b) Efflorescence

(c) Peeling

(d) Popping

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The above asked question is from Defects in Plastering topic in section Pointing and Plastering of Construction & Building Materials

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Correct option is (b) Efflorescence

Easiest explanation: Due to Efflorescence, the soluble salts are present in plaster making materials as well as building material such as bricks, sand, cement, etc. Even Water used in the construction work may contain soluble salt. When a newly constructed wall dries out, the soluble salts are brought to the surface and they appear in the form of white is a crystalline substance.

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