Computer · Concrete Technology
मानक निर्माण प्रथाओं और IS 456 : 2000 के अनुसार, साधारण पोर्टलैंड सीमेंट (OPC) का उपयोग करने पर 4.5 मीटर तक के पाट (span) वाले प्रबलित कंक्रीट स्लैब के लिए टेक (props) लगे रहने की न्यूनतम अवधि क्या है?
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