Computer · Building Materials
IS 3495 भाग-3 (1992) के अनुसार, ईंटों में घुलनशील लवणों की उपस्थिति ईंटों की सतह पर उत्फुल्लन (efflorescence) का कारण बनती है। यदि सफेद निक्षेप सतह के लगभग 10% हिस्से को कवर करते हैं, तो उत्फुल्लन को ________ कहा जाता है।
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