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Expanding cement is obtained by the addition of an expanding medium like _________ to the ordinary cement.(a) Sodium silicate(b) Potassium silicate(c) Sodium aluminate(d) Sulpho-aluminateThis question was addressed to me during an online exam.I'd like to ask this question from Plain and Reinforced in portion Miscellaneous Materials, Plain and Reinforced Cement Concrete of Construction & Building Materials

Answer» RIGHT option is (d) Sulpho-aluminate

To elaborate: EXPANDING cement is obtained by the ADDITION of an expanding medium like sulpho-aluminate to the ordinary cement. Therefore, the expanding cement expands while all other cements SHRINK. It is used to repair the damaged concrete surfaces.


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