GB12573-90水泥取样方法

ÖлªÈËÃñ¹²ºÍ¹ú¹ú¼Ò±ê×¼ GB12573 ¡ª 90 Ë®ÄàÈ¡Ñù·½·¨ Sampling method of cement 1 Ö÷ÌâÄÚÈÝÓëÊÊÓ÷¶Î§ ±¾±ê×¼¹æ¶¨ÁËË®ÄàÈ¡ÑùµÄ¹¤¾ß¡¢²¿Î»¡¢ÊýÁ¿¼°²½ÖèµÈ¡£ ±¾±ê×¼ÊÊÓÃÓÚ³ö³§Ë®ÄàµÄÈ¡Ïé¡£ÖÊÁ¿¿ØÖƼ°ÖÊÁ¿¼à¶½È¡ÑùÒàÓ¦²ÎÕÕ²ÉÓᣠ2 ÊõÓï 2.1 ÊÖ¹¤È¡Ñù ÓÃÈËÁ¦²Ù×÷È¡Ñù¹¤¾ß²É¼¯Ë®ÄàÑùÆ·µÄ·½·¨¡£ 2.2 »úеȡÑù ʹÓÃ×Ô¶¯È¡ÑùÉ豸²É¼¯Ë®ÄàÑùÆ·µÄ·½·¨¡£ 2.3 Á¬ÐøÈ¡Ñù ²»¼ä¶ÏµØÈ¡³öË®ÄàÑùÆ·µÄ·½·¨¡£ 2.4 ¼ì²éÅú Ϊʵʩ³éÑù¼ì²é¶ø»ã¼¯ÆðÀ´µÄÒ»Åúµ¥Î»²úÆ·¡£ 2.5 ±àºÅ ´ú±í¼ì²éÅúµÄ´úºÅ¡£ 2.6 ·ÝÑù ÓÉÒ»¸ö²¿Î»È¡³öµÄ¹æ¶¨Á¿Ë®Äà¡£ 2.7 »ìºÏÑù ´ÓÒ»¸ö±àºÅÄÚÈ¡µÃµÄÈ«²¿Ë®Äà·ÝÑù,¾­³ä·Ö»ìÔȺóÖƵõÄÑùÆ·¡£ 2.8 ÊÔÑéÑùºÍ·â´æÑù »ìºÏÑù¾ù·ÖΪ¶þ,Ò»·ÝΪÊÔÑéÑù,ÓÃ×÷³ö³§Ë®ÄàµÄÖÊÁ¿¼ìÑé;Ò»·ÝΪ ·â´æÑù,ÃÜ·âÖü´æÒÔ±¸¸´ÑéÖٲᣠ2.9 ·Ö¸îÑù ÔÚ¡ª¸ö±àºÅÄÚ°´Ã¿ 1/10±àºÅÈ¡µÃµÄ·ÝÑù,ÓÃ×÷·Ö¸îÑùÆ·ÖÊÊÔÑé¡£ 2.10 ͨÓÃË®Äà ÓÃÓÚÒ»°ãÍÁľ½¨Öþ¹¤³ÌµÄË®Äà¡£ 3 È¡Ñù 3.1 È¡Ñù¹¤¾ß 3.1.1 »úеȡÑùÆ÷ »úеȡÑù²ÉÓÃͼB1ËùʾµÄ×Ô¶¯Á¬ÐøÈ¡ÑùÆ÷,ÆäËûÄܹ»È¡µÃÓдú±íÐÔÑùÆ·µÄ»úеȡÑù×° ÖÃÒà¿É²ÉÓᣠ3.1.2 ÊÖ¹¤È¡ÑùÆ÷ a.´ ü×°Ë®Äà:²ÉÓÃͼ B2ËùʾµÄÈ¡Ñù¹Ü¡£ b.É¢×°Ë®Äà:²ÉÓÃͼ B3ËùʾµÄÈ¡Ñù¹Ü¡£ Ò²¿É²ÉÓÃÆäËûÄܹ»È¡µÃÓдú±íÐÔÑùÆ·µÄÊÖ¹¤È¡Ñù¹¤¾ß¡£ 3.2 È¡Ñù²¿Î» a.Ë®ÄàÊäË͹Ü·ÖÐ(ÊÊÓÃÓÚ»úеȡÑù)¡£ b.´ ü×°Ë®Äà¶Ñ³¡¡£ c.É¢×°Ë®ÄàжÁÏ´¦»òÊäËÍË®ÄàÔËÊä»ú¾ßÉÏ¡£ ×¢:²»Ó¦ÔÚÎÛȾÑÏÖصĻ·¾³ÖÐÈ¡Ñù¡£ 3.3 ÑùÆ·ÊýÁ¿ 3.3.1 »ìºÏÑù È¡ÑùÊýÁ¿Ó¦·ûºÏ¸÷ÏàӦˮÄà±ê×¼µÄ¹æ¶¨¡£ 3.3.2 ·Ö¸îÑù a.´ ü×°Ë®Äࣺÿ 1/10±àºÅ´ÓÒ»´üÖÐÈ¡ÖÁÉÙ 6kg¡£ b.É¢×°Ë®Äࣺÿ 1/10±àºÅÔÚ 5minÄÚÈ¡ÖÁÉÙ 6kg¡£ 3.4 È¡Ñù²½Öè 3.4.1 ×Ô¶¯È¡ÑùÆ÷È¡Ñù:²ÉÓà 3.1.1¹æ¶¨µÄÈ¡Ñù×°ÖÃÈ¡Ñù¡£¸ Ã×°ÖÃÒ»°ã°²×°ÔÚ¾¡Á¿½Ó½üÓÚË® Äà°ü×°»úµÄ¹Ü·ÖÐ,´ ÓÁ÷¶¯µÄË®ÄàÁ÷ÖÐÈ¡³öÑùÆ·,È»ºó½«ÑùÆ··ÅÈë½à¾»¡¢¸ÉÔï¡¢²»Ò×ÊÜÎÛȾ µÄÈÝÆ÷ÖС£ 3.4.2 È¡Ñù¹ÜÈ¡Ñù:²ÉÓÃͼ B2µÄÈ¡Ñù¹ÜÈ¡Ñù¡£Ëæ»úÑ¡Ôñ 20¸öÒÔÉϲ»Í¬µÄ²¿Î»,½«È¡Ñù¹Ü²å ÈëË®ÄàÊʵ±Éî¶È,ÓôóÄ´Ö¸°´×¡Æø¿×,СÐijé³öÈ¡Ñù¹Ü¡£½«ËùÈ¡ÑùÆ··ÅÈë½à¾»¡¢¸ÉÔï¡¢²»Ò× ÊÜÎÛȾµÄÈÝÆ÷ÖС£ 3.4.3 ²ÛÐιÜ×´È¡ÑùÆ÷È¡Ñù:µ±ËùÈ¡Ë®ÄàÉî¶È²»³¬¹ý2mʱ,²ÉÓÃͼB3µÄ²ÛÐιÜʽȡÑùÆ÷È¡ Ñù¡£Í¨¹ýת¶¯È¡ÑùÆ÷ÄڹܿØÖÆ¿ª¹Ø,ÔÚÊʵ±Î»ÖòåÈëË®ÄàÒ»¶¨Éî¶È,¹Ø±ÕºóСÐijé³ö¡£½«Ëù È¡ÑùÆ··ÅÈë½à¾»¡¢¸ÉÔï¡¢²»Ò×ÊÜÎÛȾµÄÈÝÆ÷ÖС£ 3.5 ÑùÆ·ÖƱ¸ 3.5.1 ÑùÆ·Ëõ·Ö ÑùÆ·Ëõ·Ö¿É²ÉÓöþ·ÖÆ÷,Ò»´Î»ò¶à´Î½«ÑùÆ·Ëõ·Öµ½±ê×¼ÒªÇóµÄ¹æ¶¨Á¿¡£ 3.5.2 ÊÔÑéÑù¼°·â´æÑù ½«Ã¿Ò»±àºÅËùÈ¡Ë®Äà»ìºÏÑùͨ¹ý 0.9mm·½¿×ɸ,¾ù·ÖΪÊÔÑéÑùºÍ·â´æÑù¡£ 3.5.3 ·Ö¸îÑù ÿһ±àºÅËùÈ¡ 10¸ö·Ö¸îÑùÓ¦·Ö±ðͨ¹ý 0.9mm·½¿×ɸ²¢°´¸½Â¼ A ½øÐÐÊÔÑé,²»µÃ»ìÔÓ¡£ ×¢:ÑùÆ·²»µÃ»ìÈëÔÓÎï¼°½á¿é¡£ 3.6 ÑùÆ·µÄ°ü×°ÓëÖü´æ 3.6.1 ÑùÆ·È¡µÃºóÓ¦´æ·ÅÔÚÃÜ·âµÄ½ðÊôÈÝÆ÷ÖÐ,¼Ó·âÌõ¡£ÈÝÆ÷Ó¦½à¾»¡¢¸ÉÔï¡¢·À³±¡¢Ãܱա¢ ²»Ò×ÆÆËð¡¢²»ÓëË®Äà·¢Éú·´Ó¦¡£ 3.6.2 ·â´æÑùÓ¦ÃÜ·â±£¹ÜÈý¸öÔÂ,ÊÔÑéÑùÓë·Ö¸îÑùÒàÓ¦Í×ÉƱ£¹Ü¡£ 3.6.3 ´æ·ÅÑùÆ·µÄÈÝÆ÷Ó¦ÖÁÉÙÔÚÒ»´¦¼Ó¸ÇÇåÎú¡¢²»ÒײÁµôµÄ±êÓбàºÅ¡¢È¡Ñùʱ¼ä¡¢µØµã¡¢ ÈËÔ±µÄÃÜ·âÓ¡,ÈçÖ»ÔÚÒ»´¦±êÖ¾Ó¦ÔÚÆ÷±ÚÉÏ¡£ 3.6.4 ·â´æÑùÓ¦Öü´æÓÚ¸ÉÔͨ·çµÄ»·¾³ÖС£ 3.7 È¡Ñùµ¥ ÑùÆ·È¡µÃºó,¾ùÓ¦ÓɸºÔðÈ¡Ñù²Ù×÷ÈËÔ±ÌîдÈçϱíËùʾµÄÈ¡Ñùµ¥¡£ ¡Á¡Á¡ÁË®Ä೧ȡÑùµ¥ Ë®Äà±àºÅ Ë®ÄàÆ·ÖÖ¼°±êºÅ È¡ÑùÈÕÆÚ È¡ÑùÈËÇ©×Ö ±¸×¢ ¸½ ¼ A ·Ö¸îÑùÆ·ÖÊÊÔÑé (²¹³ä¼þ) A1 ÊÔÑé·½·¨ ·Ö¸îÑùµÄÆ·ÖÊÊÔÑ鰴ͨÓÃË®ÄàÏàÓ¦µÄ¼¼ÊõÒªÇóÊÔÑé·½·¨½øÐС£ÆäËûË®ÄàÒàÓ¦²ÎÕÕ²É ÓᣠA2 ÒªÇó A2.1 ·Ö¸îÑùÊÔÑéÿ¼¾¶È½øÐÐÒ»´Î¡£¿ÉÈÎÑ¡Ò»¸öÆ·ÖÖ¡¢±êºÅ¡£ A2.2 ·Ö¸îÑùµÄÆ·ÖÊÊÔÑé½á¹û±ØÐë·ûºÏË®Äà±ê×¼¼¼ÊõÒªÇó¡£ A2.3 ·Ö¸îÑùÈ¡µÃºóÓ¦Á¢¼´½øÐÐÊÔÑ顣ȫ²¿ÑùÆ·±ØÐëÔÚÒ»ÖÜÄÚ½øÐÐÍê±Ï¡£ A2.4 µ±·Ö¸îÑùÊÔÑé½á¹ûÓеÍÓÚË®ÄàµÄ¼¼ÊõÒªÇóʱ,»òË®Äà 28 Ì쿹ѹǿ¶È±äÒìϵÊý´óÓÚ 6%ʱ,¼´Ó¦Ã¿¼¾¶È½øÐжþ´Î;µ±ÈÔÓеÍÓÚ¼¼ÊõÒªÇó,»ò±äÒìϵÊý´óÓÚ 6%ʱ,ÔòÿÔ½øÐÐÒ»´Î¡£ A2.5 ÒÔÉÏÊÔÑé´ÎÊýµÄÔö¼Ó,Ö±ÖÁ·Ö¸îÑùÊÔÑé½á¹ûÈ«²¿·ûºÏA2.2µÄÒªÇóʱ,·½¿É»Ö¸´ÎªÃ¿¼¾ Ò»´Î¡£ A2.6 Ôö¼ÓÊÔÑéʱ,Ò»°ãÓ¦ÓÃͬƷÖÖ¡¢±êºÅµÄË®Äà¡£ A3 ±äÒìϵÊýµÄ¼ÆËã A3.1 ·Ö¸îÑùƽ¾ùÖµ X å = = 10 1i Xi 10 1 X ...............................................(A1) ʽÖÐ:Xi ¡ª¡ª·Ö¸îÑù¿¹Ñ¹Ç¿¶ÈÖµ,MPa¡£ A3.2 ·Ö¸îÑù±ê׼ƫ²î S ·Ö¸îÑù±ê׼ƫ²î S °´Ê½(A2)¼ÆËã: ( ) 110 XXi S 10 1i 2 - - = å = ...................................(A2) A3.3 ·Ö¸îÑù±äÒìϵÊý Cv ·Ö¸îÑù±äÒìϵÊý Cv(%)°´Ê½(A3)¼ÆËã: %100 X S CV ´= ........................................(A3) ±í A1 ¿¹Ñ¹Ç¿¶È,MPaÇ¿¶È ·Ö¸îÑù 3Ìì 28Ìì 1 30.1 51.3 2 17.7 41.8 3 25.8 46.5 4 26.3 48.8 5 23.3 42.0 6 23.3 42.1 7 27.4 47.6 8 21.3 41.7 9 26.6 48.5 10 19.6 41.9 A4 ¼ÆËãʾÀý A4.1 ʾÀý 1 ij¹¤³§ 425ºÅ¿óÔüË®Äà·Ö¸îÑùÊÔÑé½á¹û¼û±í A1¡£ ·Ö¸îÑùƽ¾ùÖµ 28X ( )9.415.487.416.471.420.428.485.468.413.51 10 1 = X 28 +++++++++ )MPa(2.45= ·Ö¸îÑù±ê׼ƫ²î S28: ( ) ( ) ( ) ( ) ( ) ( ) ( ) ( ) ( ) ( )[ ]222222222228 2.459.412.455.482.457.412.456.472.451.422.450.422.458.482.455.462.458.412.453.519 1 S -+-+-+-+-+-+-+-+-+-´= =3.70(MPa) ·Ö¸îÑù±äÒìϵÊý Cv(%): 19.8100 2.45 70.3 100 X S C 28 28 V =´=´= ¸Ã³§ 28Ì쿹ѹǿ¶È±äÒìϵÊý´óÓÚ 6%,·Ö¸îÑùÊÔÑéÓ¦¸ÄΪÿ¼¾¶þ´Î¡£ ¸½ ¼ B Ë®ÄàÈ¡ÑùÆ÷ (²Î¿¼¼þ) B1 ×Ô¶¯Á¬ÐøÈ¡ÑùÆ÷ ×Ô¶¯Á¬ÐøÈ¡ÑùÆ÷Ö÷ÒªÊÊÓÃÓÚË®Äà³ÉÆ·¼°Ô­ÁϵÄ×Ô¶¯Á¬ÐøÈ¡Ñù,Ò²ÊÊÓÃÓÚÆäËû·Û×´ÎïÁÏ µÄ×Ô¶¯Á¬ÐøÈ¡Ñù¡£ B1.1 ½á¹¹ ×Ô¶¯Á¬ÐøÈ¡ÑùÆ÷½á¹¹Èçͼ B1Ëùʾ¡£ ͼ B1×Ô¶¯Á¬ÐøÈ¡ÑùÆ÷ 1¡ªÈëÁÏ´¦;2¡ªµ÷½ÚÊÖ±ú;3¡ª»ìÁÏͲ;4¡ªµç»ú;5¡ªÅäÖØ´¸;6¡ª³öÁÏ¿Ú B1.2 ¼¼ÊõÒªÇó B1.2.1 »ìÁÏͲ¹æ¸ñ·ÖΪÁ½ÖÖ:A ÐÍ¦Õ 500mm¡Á 225mm,B ÐÍ¦Õ 300mm¡Á 150mm¡£ B1.2.2 »ìÁÏͲ×î´ó×°ÁÏÁ¿:A ÐÍΪ 15kg,B ÐÍΪ 5kg(ÎïÁÏÃܶȲ»Ð¡ÓÚ 28g/cm3)¡£ B1.2.3 µç¶¯»ú¹¦ÂÊ:120W ¡£ B1.2.4 È¡ÑùÁ¿Ó¦¿Éµ÷,µ÷½Ú·¶Î§Îª 0¡« 8kg/h¡£ B1.2.5È¡Ñùµ÷½Ú·§¼°µ¹ÁÏ·­×ªÃÅÓ¦Áé»î×ÔÈç¡£ B1.2.6µ¹ÁÏÃÅËÄÖܼ°¸÷²¿Î»ÃÜ·âÐÔÄÜÁ¼ºÃ,ÎÞÃ÷ÏÔ©»ÒÏÖÏó¡£ B2 ´ü×°Ë®ÄàÈ¡ÑùÆ÷ ´ü×°Ë®ÄàÈ¡Ñù²ÉÓÃÈçͼ B2ËùʾµÄÈ¡Ñù¹Ü¡£ ͼ B2´ü×°Ë®ÄàÈ¡Ñù¹Ü 1¡ªÆø¿×£» 2¡ªÊÖ±ú ²ÄÖÊ£º»ÆÍ­ Æø¿×ºÍ±Úºñ³ß´ç×Ô¶¨ B3 É¢×°Ë®ÄàÈ¡ÑùÆ÷ É¢×°Ë®ÄàÈ¡Ñù²ÉÓÃÈçͼ B3ËùʾµÄÈ¡Ñù¹Ü¡£ ÄÚ¹Ü ×é×°È¡ÑùÆ÷ ͼ B3É¢×°Ë®ÄàÈ¡Ñù¹Ü L=1000~2000 ¸½¼Ó˵Ã÷: ±¾±ê×¼Óɹú¼Ò½¨Öþ²ÄÁϹ¤Òµ¾ÖÌá³ö¡£ ±¾±ê×¼ÓÉÖйú½¨Öþ²ÄÁÏ¿ÆѧÑо¿Ôº¼¼Êõ¹é¿Ú¡£ ±¾±ê×¼Óɹú¼Ò½¨Öþ²ÄÁϹ¤Òµ¾Ö±ê×¼»¯Ñо¿Ëù¸ºÔðÆð²Ý¡£ ±¾±ê×¼Ö÷ÒªÆð²ÝÈË·½µÂÈð¡¢Îº´Ó¾Å¡£ Ë®ÄàÈ¡Ñù·½·¨ 1 Ö÷ÌâÄÚÈÝÓëÊÊÓ÷¶Î§ 2 ÊõÓï 3 È¡Ñù ¸½ ¼ A A1 ÊÔÑé·½·¨ A2 ÒªÇó A3 ±äÒìϵÊýµÄ¼ÆËã A4 ¼ÆËãʾÀý ¸½ ¼ B B1 ×Ô¶¯Á¬ÐøÈ¡ÑùÆ÷ B2 ´ü×°Ë®ÄàÈ¡ÑùÆ÷ B3 É¢×°Ë®ÄàÈ¡ÑùÆ÷ ¸½¼Ó˵Ã÷: