00376nam a2200133Ia 4500008004100000041000800041082001400049100003000063245006600093250000800159260004700167300000600214650002200220230711s9999||||xx |||||||||||||| ||und||  aENG  a624bBU-I  aBureau of Indian Standard 0aSI : 8041 1990bRepid hordening portland cement specification  a1st  c1990aNew DelhibBureau of Indian Standard  a6  aCivil Engineering