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Plastic Concrete- My Paper
1.
1385{Y{ﻫﺸﺖ/ﻣﺮÁÃﭘﻨﺠﺎÃﺷﻤﺎ/[Mﻣﻨﺎﺑﻊﺗﻮﺳﻌﻪ{ﺟﻬﺎﺷﺮﻛﺖﺧﻠﻲY{ﺧﺒﺮﻧﺎﻣﻪ /news@jtma.org/WWW.JTMA.ORG 2 ﭘﺬﻳﺮﺷﻜﻞ Õﻫﺎﺑﺘﻦ ﺳﺎﺧﺖ
Á •ﺧﺘﻼY sﻃﺮ { ﻣﺆﺛﺮ ﻣﻞYﻋﻮ (ﭘﻼﺳﺘﻴﻚ Õﻫﺎ)ﺑﺘﻦ ﻓﻨﻲ ﻣﻘﺎﻟﻪ ½M Õﭘﺬﻳﺮﺷﻜﻞ ﻛﻪ {ﺷﻮﻣﻰ Ã{ﺳﺘﻔﺎY ﺑﺘﻨﻰ Y ًﺎﻏﺎﻟﺒ ،ﺳـﺪﻫﺎ ﺑﻨﺪ[M ÕﻫﺎÃY{ﻳﻮ { Õﭘﺬﻳﺮﺷﻜﻞ ﺑﻪ {ﺳـﺘﻴﺎﺑﻰ ﻳﻦYﺑﻨﺎﺑﺮ Á ﺑﺎﺷـﺪ (ﺑﺮYﺑﺮ 5 ﺗﺎ 3 {Áﺣﺪ {) ﺑﺮﻓﺖM ﻣﺸـﺎﺑﻪ .ﻳﺪMﻣﻰ ¹ﻻ ﺑﺘﻦ ÕYﺑﺮ ﻣﻨﺎﺳﺐ ﺑﺘﻦ ÕYﺑﺮ ﻣـﺎY .{Y{ {ﺟﻮÁ ﻣﺨﺘﻠﻔﻰ Õﻫـﺎ‰Á ،ﻣﻌﻤﻮﻟﻰ ﺑﺘﻦ •ﺧﺘـﻼY sﻃﺮ ÕYﺑـﺮ ﻣﻨﺎﺳـﺒﻰ ‰Á ½ﺗﺎﻛﻨﻮ ،ﻛﻢ ﻻﺳﺘﻴﺴـﻴﺘﺔY µÁﻣﺪ ﺑﺎ Õﻫﺎﺑﺘﻦ ﺧﺼﻮ ﺑﻪ ،ﭘﻼﺳـﺘﻴﻚ ﭘﻼﺳﺘﻴﻚ ﺑﺘﻦ •ﺧﺘﻼY sﻃﺮ ÕYﺑﺮ Y Õﺟﺪﻳﺪ ‰Á ،ﺣﺎﺿﺮ ﻣﻘﺎﻟﺔ .ﺳـﺖY Ãﻧﺸـﺪ ﺋﻪYY .ﻧﻤﺎﻳﺪﻣﻰ ﺋﻪYY ½M Õﻓﺸﺎ ﻣﺖÁﻣﻘﺎ Á ﻻﺳﺘﻴﺴﻴﺘﻪY µÁﻣﺪ Õﻣﺒﻨﺎ ﺑﺮ {ﻳﺎ ÕYﺑﺎﮔﺬ ﺳﺮﻋﺖ { ﭘﻼﺳــﺘﻴﻚ Y{ﻳﻮ { ﻣــﺎY ،ﻳﺎﻓﺖ ﻫﺪYﺧﻮ ﻳــﺶYﻓﺰY ﻣﺤﺼﻮ {ﻟﻴــﻞ ﺑﻪ ،ﭘﻼﺳــﺘﻴﻚ ﺑﺘــﻦ Õ{ﻳﺎ ﺗﻨﺶ ،ﺑﺮﻓﺖM ﺗﻮﺳــﻂ ½ﺷــﺪ ﻫﻤﭽﻨﻴﻦ .ﺷــﺪ ﻫﺪYﻧﺨﻮ {YÁ Y{ﻳﻮ ﺑﻪ {ﻟﻴﻞ ﺑﻪ ،ﻣﻌﻤﻮﻟﻰ Õﻫــﺎﺑﺘﻦ ¥ﺑﺮﺧﻼ ،ﺑﻨﺘﻮﻧﻴــﺖ ﭘﻰÁﺗﻴﻜﺴــﻮﺗﺮ ﺧﺎﺻﻴــﺖ ﺑﻪ ﺗﻤﺎﻳﻞ ﭘﻼﺳــﺘﻴﻚ ﺑﺘﻦ { ﻫﺎﺗﺮ .ﻧﺪY{ ﺗﺮﻣﻴﻤﻰ {ﺧﻮ :ﻣﺼﺎﻟﺢ Á {Yﻣﻮ -2 :[M - ﻟﻒY Õﻫــﺎsﻃﺮ { Ã{ﺳــﺘﻔﺎY {ﻣــﻮ [M ًﺎ{ﻗﻴﻘ ﺑﺎﻳــﺪ ﭘﻼﺳــﺘﻴﻚ ﺑﺘﻦ •ﺧﺘﻼY ﺑﺘﻦ ﺳﺎﺧﺖ { ﻛﻪ ﺑﺎﺷــﺪ ﺑﻰM ½ﻫﻤﺎ ÕYÃﭘﺎ .{ﺷﻮﻣﻰ Ã{ﺳــﺘﻔﺎY ﭘﻼﺳﺘﻴﻚ ﺑﺮ ﻧﻨﺪYﺗﻮﻣﻰ [M ﺷــﻴﻤﻴﺎﻳﻰ {Yﻣــﻮ Y .ﻧﺪYﮔﺬ ﺛﺮY ½ﺳﻴﻤﺎ - ﺑﻨﺘﻮﻧﻴﺖ ﻛﻨﺶYÁ ﭘﻼﺳــﺘﻴﻚ ﺑﺘﻦ ﺑﺮ ﻧﺎﻣﻄﻠﻮﺑﻰ ﺛﺮY ﻛﻠﺮ ،ﻛﻢ ½ﺳــﻴﻤﺎ {ﻟﻴﻞ ﺑــﻪ .{Yﮔــﺬﻧﻤﻰ { ﻧﺒﺎﻳﺴﺘﻰ cﺳــﻮﻟﻔﺎ ÕYY{ Õﻫﺎ[M .ﻧﺪÁ ﻛﺎ ﺑﻪ ﭘﻼﺳﺘﻴﻚ ﺑﺘﻦ :½ﺳﻴﻤﺎ - [ ½ﺳــﻴﻤﺎ ﻧﻮ Y ﻧــﺪYﺗﻮﻣﻰ ½ﺳــﻴﻤﺎ ِ[M ﻛﻪ ﺻﻮﺗــﻰ { .ﺑﺎﺷــﺪ ﻣﻌﻤﻮﻟﻰ ÕÁﺣﺎ ﭘﻼﺳــﺘﻴﻚ ﺑﺘﻦ ﺑﺎ …ﺗﻤــﺎ { ½ﺳــﻴﻤﺎ ،ﺑﺎﺷــﺪ cﺳــﻮﻟﻔﺎ Õﻫﺎ½ﻳﻮ ﻧﻴﺰ 5 ﻧﻮ ﻳﺎ ﻻﻧﻰÁﭘﻮ ﻳﺎ Á ÕYÃﺳــﺮﺑﺎ {ﻗﺖ ﺑﺎﻳﺪ ﻟﻴﻜﻦ .ﺳﺖY Ã{ﺳــﺘﻔﺎY ﻗﺎﺑﻞ { Y{ﻳﻮ ﻧﻬﺎﻳﻰ ÕﻣﺘﺮﻫﺎYﭘﺎ ﻛﻪ {ﻧﻤــﻮ .ﮔﻴﺮﻧﺪ Yﻗﺮ ½ﻣﻮM {ﻣﻮ ﺑﺎﻻﺗﺮ ﺳﻨﻴﻦ :ﺳﻨﮕﻰ ﻣﺼﺎﻟﺢ - k ÕYﻣﺎﺳــﻪ Á ﺷــﻦ ﻧﻮ ﻫﺮ ﺑﺎ ًﺎﺗﻘﺮﻳﺒ ÕYﺑﺮ ﻧﻈﺮ {ﻣــﻮ Yﺧﻮ ﺑﻪ ½Yﺗــﻮﻣﻰ ¹ﻻ .ﻳﺎﻓــﺖ {ﺳــﺖ ﭘﻼﺳــﺘﻴﻚ ﺑﺘﻦ ﻣﻨﻄﺒﻖ ﻣﺎﺳــﻪ Á ﺷﻦ ًﺎﺣﺘﻤ ﻧﻴﺴــﺖ ﺑﺎ .ﺑﺎﺷــﻨﺪ ASTM C33 {YﺳــﺘﺎﻧﺪY ﺑﺮ ﺑﺘﻦ ½Yﺗﻮﻣﻰ ÕYﻣﺎﺳﻪ Á ﺷــﻦ ﻧﻮ ﻫﺮ ﺣﺠﻢ ًﺎﻧﻬﺎﻳﺘ ﻟﻴﻜﻦ ﺳﺎﺧﺖ؛ ﭘﻼﺳﺘﻴﻚ ([+ﺑﻨﺘﻮﻧﻴﺖM+½)ﺳــﻴﻤﺎ [ﻏﺎÁ{ ﻓﺎ ﺑﺮ ﻏﻠﺒﻪ ÕYﺑﺮ .ﻳﺎﺑﺪ ﺗﻐﻴﻴﺮ ﺳﺖY ﻣﻤﻜﻦ ﭘﺮ ﻣﺎﺳﻪ Y Ã{ﺳﺘﻔﺎY ،ﺟﻮﺷــﺶ Ãﭘﺪﻳﺪ ًﺎﺣﺘﻤ ﻧﻴﺴــﺖ ¹ﻻ Á Ã{ﺑﻮ ﺑﻬﺘﺮ ﻓﻴﻠــﺮ ¥)ﺑﺮﺧﻼ {ﺷﻮ Ã{ﺳﺘﻔﺎY ﺷﺴﺘﻪ ﻣﺎﺳــﻪ ÃYﻫﻤﺮ ﻣﺎﺳــﻪ ﺣﺘﻰ ،ﻣﻌﻤﻮﻟــﻰ ﺑﺘــﻦ ﻧﻴﺰ 200 ﻟﻚY Y Õﻋﺒــﻮ ﻧﻪY{ﻳﺰ ﺑــﺎ ÉﺑﻨﺪﻧﻪY{ Ãﻧﺤﻮ .(ﺳﺖY Ã{ﺳﺘﻔﺎY ﻗﺎﺑﻞ Õﻫﺎﺑﺘﻦ ﻛﺮﻧﺶ - ﺗﻨﺶ ﻣﻨﺤﻨﻰ -1 :ﭘﺬﻳﺮﺷﻜﻞ Õﻫﺎﺑﺘﻦ { ﻛﺮﻧﺶ - ﺗﻨﺶ ﻣﻨﺤﻨﻰ .ﺑﺎﺷﺪﻣﻰ 1 ﺷﻜﻞ ﻫﻤﺎﻧﻨﺪ ﭘﻼﺳــﺘﻴﻚ ،{ﺷــﻮﻣﻰ Ã{ﻳــﺪ ﻛــﻪ ﻫﻤﺎﻧﮕﻮﻧــﻪ ﻳﺶYﻓﺰY ﺑﺎ ﭘﻼﺳﺘﻴﻚ ﺑﺘﻦ Õﭘﺬﻳﺮﺷﻜﻞ { .ﻳﺎﺑﺪﻣﻰ ﻳﺶYﻓﺰY ﺟﺎﻧﺒﻪﻫﻤﻪ ﺗﻨــﺶ ﺑﺮYﺑﺮ ﺟﺎﻧﺒــﻪﻫﻤﻪ ﺗﻨــﺶ ﻛﻪ ﺣﺎﻟﺘــﻰ ﻣﺖÁﻣﻘﺎ ًﺎﻃﺒﻴﻌﺘــ ،ﺳــﺖY ﺻﻔــﺮ ﺑــﺎ Y {ﺧﻮ Yﻣﻘــﺪ ﻛﻤﺘﺮﻳﻦ Ãﻣﺤــﻮﺗﻚ ﻗﻞYﺣﺪ { ﻧﻴــﺰ Õﭘﺬﻳﺮﺷــﻜﻞ Á {Y{ .{Y{ Yﻗﺮ {ﺧﻮ Yﻣﻘﺪ ،ﺗﻨﺶ ﺑﺮYﺑﺮ { ﭘﻼﺳﺘﻴﻚ ﺑﺘﻦ ﻓﺘﺎ Á Ã{ﺑﻮ ﻻﺳﺘﻮﭘﻼﺳــﺘﻴﻚY ﻓﺘــﺎ ﻳﻚ ،Õﻣﺤﻮﺗﻚ ﺷﻜﺴﺖ ﻛﺮﻧﺶ ًﻻﻣﻌﻤﻮ ﺣﺘــﻰ Á ﺑﺎﺷــﺪﻣﻰ 0/008 Y ﺑﻴــﺶ ﻧﻴﺰ {ﺻﺪ 1/5 Y ﺑﻴــﺶ Õﻫﺎﻛﺮﻧﺶ ﻫﺮﭼﻪ .ﺑﺎﺷــﻨﺪﻣﻰ {ﺳــﺘﻴﺎﺑﻰ ﻗﺎﺑــﻞ ،ﺑﺎﺷﺪ ﺑﻴﺸﺘﺮ ﺷﻜﺴــﺖ ﻛﺮﻧﺶ ½Yﻣﻴﺰ ﭘﻼﺳــﺘﻴﻚ ﺑﺘﻦ ÕﻧﺮژY [ﺟﺬ ﻗﺎﺑﻠﻴﺖ {ﺑﻮ ﻫﺪYﺧﻮ ﺑﻴﺸــﺘﺮ ﺑﻨﺪ[M Y{ﻳــﻮ { {ﭼﺎ ﻟﺰﻟــﻪ ﻣﻘﺎﺑــﻞ { ﻧﺘﻴﺠــﻪ { Á ﮔﺮﭼﻪ .ﺷــﺪ ﻫﺪYﻧﺨﻮ ﺧﻮ{ﮔــﻰﺗﺮ ﺑﺘﻦ ﻣﺆﺛﺮ ﻻﺳﺘﻴﺴــﻴﺘﺔY µÁﻣﺪ ½Yﻣﻴﺰ ﻻ ﻳﻦÁﻣﺸﺎ ﺷﺮﻛﺖ - ½ﻗﻴﺎYﻋﺮ ﺣﻤﻴﺪﺿﺎ ﭘﺬﻳﺮﺷﻜﻞ Õﻫﺎﺑﺘﻦ ﻛﺮﻧﺶ - ﺗﻨﺶ ﻣﻨﺤﻨﻰ -1 ﺷﻜﻞ ﻣﺨﺘﻠﻒ ﺟﺎﻧﺒﻪﻫﻤﻪ Õﻫﺎﺗﻨﺶ ﺑﺎ
2.
1385{Y{ﻫﺸﺖ/ﻣﺮÁÃﭘﻨﺠﺎÃﺷﻤﺎ/[Mﻣﻨﺎﺑﻊﺗﻮﺳﻌﻪ{ﺟﻬﺎﺷﺮﻛﺖﺧﻠﻲY{ﺧﺒﺮﻧﺎﻣﻪ /news@jtma.org/WWW.JTMA.ORG 3 ﺑﺮ ﻛﻪ ﻫﻤﺎﻧﮕﻮﻧــﻪ
،ﻧﻴــﺰ ﻫﺎﻧﻪYﺳــﻨﮕﺪ ﺑﺮ ،ﺳﺖY ﻣﺆﺛﺮ ﭘﻼﺳﺘﻴﻚ ﺑﺘﻦ ﻣﺖÁﻣﻘﺎ .ﺳــﺖY Yﺗﺄﺛﻴﺮﮔﺬ ﻧﻴﺰ ﺗﺠﺎﻋﻲY µÁﻣﺪ Ãﻋﻤﺪ ﻛﻪ ﻣﺮY ﻳــﻦY ﺑﻪ ﺗﻮﺟﻪ ﺑﺎ ﻟﺒﺘــﻪY ﻧﺎﺷﻲ ﭘﻼﺳﺘﻴﻚ ﺑﺘﻦ { ﺷﻜﻞ ﺗﻐﻴﻴﺮ ،ﺑﺎﺷﺪﻣﻲ ½M cﻣﻼ { ﺷﻜﻞ ﺗﻐﻴﻴﺮ Y ﺛﺮY ﻛﻪ ﺑﺮﺳﻴﻢ ﻧﺘﻴﺠﻪ ﻳﻦY ﺑﻪ ﻧﻴﻢYﺗﻮﻣﻲ µÁﻣﺪ ﺑﺮ ﻧﻪYﺳــﻨﮕﺪ ﺗﺠﺎﻋﻲY µÁﻣــﺪ ﺑﺎﺷﺪﻣﻲ ¹Á{ {ﺟﻪ ﺛﺮY ﺑﺘﻦ ﺗﺠﺎﻋﻲY ﻻﺳﺘﻴﺴــﻴﺘﺔY µÁﻣﺪ ﺑﺎ Õﻫﺎﺑﺘﻦ { Á ﺗﺄﺛﻴﺮﺑﻰ ًﺎﺗﻘﺮﻳﺒ (10000 Y )ﻛﻤﺘﺮ ﻛﻢ .ﺳﺖY ﻣﺼﺎﻟﺢ ﺗﻮﻟﻴﺪ ÕYﺑﺮ ÃY ﺗﺮﻳﻦÕ{ﻗﺘﺼﺎY ﺳﺖY ﺳﺮﻧﺪ ﻳﻚ ﺗﻌﺒﻴﻪ ،ﭘﻼﺳﺘﻴﻚ ﺑﺘﻦ ﻗﺴــﻤﺖ Á{ ﺑﻪ Y ½ﻣﻌﺪ •ﻣﺨﻠﻮ ﻛــﻪ .ﻧﻤﺎﻳﺪ ﺗﺒﺪﻳﻞ ﻣﺎﺳﻪ Á ﺷﻦ :ﺑﻨﺘﻮﻧﻴﺖ - { ÕﻫﺎY{ﻳﻮ { Ã{ﺳﺘﻔﺎY {ﻣﻮ ﺑﻨﺘﻮﻧﻴﺖ API {YﺳﺘﺎﻧﺪY ﺑﺮ ﻣﻨﻄﺒﻖ ﺑﺎﻳﺪ ﺑﻨﺪ[M .ﺑﺎﺷﺪ :ﭘﻼﺳﺘﻴﻚﺑﺘﻦ•ﺧﺘﻼYÁﺳﺎﺧﺖ-3 ﺑﺎﻳﺪ YﺑﺘﺪY ،ﭘﻼﺳﺘﻴﻚ ﺑﺘﻦ ﺳﺎﺧﺖ { { .{ﻧﻤﻮ Ã{ﻣــﺎM Y ﺑﻨﺘﻮﻧﻴﺘﻰ [ﻏﺎÁ{ ﻛﻞ ﺑﺎ ﺑﻨﺘﻮﻧﻴﺖ YﺑﺘﺪY ،[ﻏﺎÁ{ ﺳــﺎﺧﺖ .{ﺷﻮﻣﻰ •ﻣﺨﻠﻮ ﺑﺘﻦ { {ﻣﻮﺟﻮ [M ﺑﺘﻦ { Ã{ﺳﺘﻔﺎY {ﻣﻮ [ﻏﺎÁ{ ﻏﻠﻈﺖ 12 ﺗــﺎ 2 Ã{Áﻣﺤــﺪ { ،ﭘﻼﺳــﺘﻴﻚ ﭼﻨﻴﻦ ﺳﺎﺧﺖ ÕYﺑﺮ .ﺑﺎﺷــﺪﻣﻰ {ﺻﺪ 1400) ﺑﺎﻻ Á{ Õﻣﻴﻜﺴﺮﻫﺎ ،ﻏﺎﺑﻰÁ{ ﻟﻴﻪÁY ﻣﻴﻜﺴﺮ ½Yﻋﻨﻮ ﺑﻪ (Á{ 2400 ﺗﺎ ½ﻣﺎ .ﮔﻴﺮﻧﺪﻣﻰ Yﻗﺮ Ã{ﺳــﺘﻔﺎY {ﻣﻮ {ﻗﻴﻘﻪ 10 {Áﺣــﺪ { ﻟﻴﻪÁY •ﺧﺘــﻼY ،[ﻏﺎÁ{ ﺳﺎﺧﺖ Y ﺑﻌﺪ .ﺳﺖY ﻣﻨﺎﺳﺐ ÕÁMﻋﻤﻞ ﺳــﺎﻋﺖ 24 ﺑﺎﻳﺪ [ﻏــﺎÁ{ Y ﺑﻌــﺪ ﺑﻨﺘﻮﻧﻴــﺖ [ﻏــﺎÁ{ .{ﺷــﻮ ﻟﺰﺟﻲ ًﺎﻧﺴﺒﺘ Ã{ﻣﺎ ﺷﻜﻞ ﺑﻪ ،ÕÁMﻋﻤﻞ ،ﺑﻨﺘﻮﻧﻴﺖ .ﻳﺪMﻣﻰ { Õﺷــﻴﺮ ﻧﮓ ﺑﻪ ژﻻﺗﻴﻨﻰ ﺣﺎﻟﺖ ﺑﻪ ،½ﺳــﻜﻮ cﺻﻮ { Yﭘﻴﺪ ﻳﺶYﻓﺰY ½M ÕÁﻧــﺮYﮔﺮ Á ÃﻣﺪM{ ﺧﻞY{ { ًﺎﺣﺘﻤــ ﺑﺎﻳــﺪ Yﻟﺬ .ﻛﻨــﺪﻣﻰ ﻫﻢ ﺑﻪ ¹YM ﺳﺮﻋﺖ ﺑﺎ ،ÕYﻧﮕﻬﺪ ¥ﻇﺮ .(ﺛﺎﻧﻮﻳﻪ )ﻣﻴﻜﺴﺮ {ﺷﻮ Ã{ Á ½ﺳﻴﻤﺎ •ﻣﺨﻠﻮ ﺑﻪ [ﻏﺎÁ{ ﺳﭙﺲ ﺗﻮﺟﻪ ﺑﺎ .{ﺷﻮﻣﻰ Ã{ÁﻓﺰY ﻫﺎﻧﻪYﺳــﻨﮕﺪ { ﭘﻼﺳــﺘﻴﻚ ﺑﺘﻦ ÕYﺟﺮY ‰Á ﺑــﻪ ﺗﺤﺖ ﺑﺘــﻦ )ﻛﻪ ﺑﻨــﺪ[M ÕﻫــﺎY{ﻳﻮ ﻛﻢYﻣﺘﺮ Á Ãﺷــﺪ Õﺟﺎ {ﺧﻮ ½Á ﺛﺮY ﺑﺎﻳﺪ Ãﺗــﺎ ﺑﺘﻦ ﺳــﻼﻣﭗY ،({ﺷــﻮﻣﻰ { .ﺑﺎﺷــﺪ ﻣﻴﻠﻴﻤﺘــﺮ 200 Y ﺑﻴــﺶ ﻣﺼﺎﻟﺢ ½ﺷــﺪ Yﺟﺪ ﺧﻄﺮ ﻛﻪ ﺻﻮﺗﻰ ،ﺑﺎﺷــﺪ ﺷــﺘﻪYﻧﺪ {ﺟﻮÁ Ãﺗﺎ ﺑﺘــﻦ { 250 ﺗﺎ Ãﺗــﺎ ﺑﺘﻦ ﺳــﻼﻣﭗY ﻳﺶYﻓﺰY cﺻﻮ { .ﺳــﺖY ﻣﻨﺎﺳــﺐ ﻣﻴﻠﻴﻤﺘﺮ ،Ãﮔﺮ{ﻧﺪ ¹Y{ Õﻣﻴﻜﺴﺮﻫﺎ { •ﺧﺘﻼY ﺳــﻨﮕﻰ ﻣﺼﺎﻟﺢ YﺑﺘﺪY {{ﮔﺮﻣﻰ ﺗﻮﺻﻴﻪ ﺳــﭙﺲ Á ﺷــﻮﻧﺪ •ﻣﺨﻠﻮ ½ﺳــﻴﻤﺎ Á .{ﺷﻮ ﻳﺨﺘﻪ ½M ÕÁ ﺑﺮ [ﻏﺎÁ{ :ﻫﺎﻧﻤﻮﻧﻪ ÕYﮔﺬﻛﻼﻫﻚ -4 ،ﺑﺘﻦ ﻛﻼﻫﻚ ﻻﺳﺘﻴﺴــﻴﺘﻪY µÁﻣــﺪ ﺛﺮY Ãﺷــﺪ ﺋﺖYﻗﺮ Õﻓﺸــﺎ ﻣﺖÁﻣﻘﺎ ﺑﺮ ،ﺑﻬﺘﺮ cﻋﺒــﺎ ﺑﻪ .{Yﮔــﺬﻣﻰ Õ{ﻳﺎ µÁﻣﺪ ﺑﺎ ﻛﭙﻴﻨــﮓ Ã{ﻣــﺎ Y Ã{ﺳــﺘﻔﺎY ﻧﻮﻋﻰ {ﻳﺠﺎY ﻣﻮﺟﺐ ،{ﻳﺎ ﻻﺳﺘﻴﺴﻴﺘﻪY Õﻫﺎﻗﺴــﻤﺖ { ﻣﺤﺼﻮﺷــﺪﮔﻰ ﺛﺮY ،ﻣﺮY ﻫﻤﻴﻦ ﻛﻪ {ﺷﻮﻣﻰ ﻧﻤﻮﻧﻪ ﻧﺘﻬﺎﻳﻰY Á ﺑﺘﻦ Õﻓﺸﺎ ﻣﺖÁﻣﻘﺎ ﻳﺶYﻓﺰY ﻣﻮﺟﺐ .ﮔﺮ{ﻳﺪ ﻫﺪYﺧﻮ ½M ﻻﺳﺘﻴﺴﻴﺘﺔY µÁﻣﺪ ÕYﺑﺮ ،ﭘﻼﺳــﺘﻴﻚ Õﻫــﺎﺑﺘﻦ { Yﻟــﺬ Y ﺑﺎﻳﺪ ﻛﭙﻴﻨﮓ Ã{ﻣﺎ ،ﺛﺮY ﻳــﻦY ﻛﺎﻫﺶ Y{ﺑﺮﺧﻮ ﻻﺳﺘﻴﺴﻴﺘﻪY µÁﻣﺪ ﻗﻞYﺣﺪ ﺑﺮ ﻣﺤﺼﻮﻛﻨﻨﺪﮔﻰ ﺛــﺮY ﻓﺎﻗﺪ Á Ã{ﺑــﻮ ½ﺳﻴﻤﺎ {ﭘﻮ Y Ã{ﺳــﺘﻔﺎY .ﺑﺎﺷــﺪ ﺑﺘﻦ ﺳــﻄﺢ ﺧﺎﻟﻰ Õﻓﻀﺎﻫﺎ ﻛﻪ Õﻧﺤﻮ ﺑــﻪ ¥ﺻﺎ Y ½M ﺳﻄﺢ Á Ã{ﻧﻤﻮ ﭘﺮ Y ﻧﻤﻮﻧﻪ ﺑﺎ ﭘﻼﺳــﺘﻴﻚ Õﻫﺎﺑﺘﻦ ÕYﺑــﺮ ،ﻛﻨــﺪ .ﺳﺖY ﻣﻨﺎﺳﺐ ،ﻛﻢ ﻻﺳﺘﻴﺴﻴﺘﻪY µÁﻣﺪ ،Ãﺷــﺪ ¹ﻧﺠﺎY ÉﻫﺎﻣﺎﻳﺶM ﻃﺒــﻖ ﺑﺮ ﺳﺎﻋﺖ 2 {Áﺣﺪ ﻛﻪ ﮔﭽﻰ Y Ã{ﺳﺘﻔﺎY ﻣﺖÁﻣﻘﺎ ،ﺳﺖY ﮔﺬﺷﺘﻪ ½M •ﺧﺘﻼY Y ﺑﻪ ¹ﻻ .{ﻫﺪﻣﻰ ﻛﺎﻫــﺶ Y µÁﻣﺪ Á ﻛﭙﻴﻨﮓ Ã{ﻣﺎ ﺿﺨﺎﻣﺖ ﻛﻪ ﺳــﺖY }ﻛﺮ .(2 )ﺷﻜﻞ ﺑﺎﺷﺪ ﻗﻞYﺣﺪ ﺑﺎﻳﺪ :ÕYﺑﺎﮔﺬ ﺳﺮﻋﺖ -5 ASTM {YﺳــﺘﺎﻧﺪY { {ﺗــﺮ ﻣﺼﺎﻟﺢ {ﺷــﻮﻣﻲ ﮔﻔﺘﻪ ﻣﺼﺎﻟﺤﻲ ﺑــﻪ D2850 {ﺻﺪ 6 ﺗﺎ 3 ﻛﺮﻧﺶ Ã{Áﻣﺤﺪ { ﻛﻪ ﺑﺘﻦ { .ﺑﺮﺳــﻨﺪ ﻓﻲYﻧﺤﺮY ﺗﻨــﺶ ﺑــﻪ ﻛﺮﻧﺶ Ãﺑــﺎ ﻳﻦY ًﺎﻋﻤﺪﺗ ،ﭘﻼﺳــﺘﻴﻚ .{{ﮔﺮﻣﻲ {Áﻣﺤﺪ {ﺻﺪ 3 ﺗﺎ 0/5 ﺑﻪ ﻧﺴﺒﺖ ﭘﻼﺳﺘﻴﻚ ﺑﺘﻦ ًﺎﺗﻘﺮﻳﺒ ﻳﻦYﺑﻨﺎﺑﺮ ﺗﺮ{ﺗﺮ ﺷﺸــﻢﻳﻚ ﺧــﺎ ﻣﺼﺎﻟﺢ ﺑــﻪ .ﺑﺎﺷﺪﻣﻲ ÉYﺑــﺮ ASTM D2850 {YﺳــﺘﺎﻧﺪY Y ÉYﺑـﺎﮔﺬ ﺳـــﺮﻋـﺖ ،{ﺗﺮ ﻣﺼﺎﻟـﺢ {ﺻﺪ 0/3 ،)ﻣﻨﻈﻮ {ﺻــﺪm 0/3min ÉYﺑﺮ ﻛــﻪ ﺑﺎﺷــﺪﻣﻲ ﻧﻤﻮﻧﻪ ﺗﻔــﺎY Y ﺳﺮﻋﺖ Éﺳﺎﻧﺘﻴﻤﺘﺮ 30 ﻧﻪYﺳــﺘﻮY ﻳﻚ ½ﺳﻴﻤﺎ {ﭘﻮ ﺑﺎ ﭘﻼﺳﺘﻴﻚ ﺑﺘﻦ Õﻫﺎﻧﻤﻮﻧﻪ ÕYﮔﺬﻛﻼﻫﻚ -2 ﺷﻜﻞ
3.
1385{Y{ﻫﺸﺖ/ﻣﺮÁÃﭘﻨﺠﺎÃﺷﻤﺎ/[Mﻣﻨﺎﺑﻊﺗﻮﺳﻌﻪ{ﺟﻬﺎﺷﺮﻛﺖﺧﻠﻲY{ﺧﺒﺮﻧﺎﻣﻪ /news@jtma.org/WWW.JTMA.ORG 4 {ﺳــﺖ ﺑــﻪ 0/9Ámm/min
ÉYﺑﺎﮔــﺬ ﻳﻦY ﺑﻪ ﻛﻪ ﻛﻨﺪﻣﻲ {ﭘﻴﺸــﻨﻬﺎ (ﻳﺪMﻣﻲ ÉYﺑﺎﮔــﺬ ﺳــﺮﻋﺖ ½Yﺗﻮﻣﻲ ﺗﺮﺗﻴﺐ {Áﺣـﺪ { Y ﭘﻼﺳــﺘﻴـﻚ ﺑﺘﻦ ÉYﺑـﺮ .{ﻧﻤﻮ {ﭘﻴﺸﻨﻬﺎ 0/1Ámm/min :ﭘﻼﺳﺘﻴﻚ ﺑﺘﻦ { ﺷﻜﺴﺖ ﻧﻮ -6 ﺣﻴــﻦ ،ﭘﻼﺳــﺘﻴﻚ Õﻫــﺎﺑﺘﻦ { ﻗﺎﺋﻢ Õﻫﺎﺗﺮ YﺑﺘﺪY ًﻻﻣﻌﻤﻮ ،ﺷﻜﺴﺖ ﻧﻤﻮﻧﻪ Á ﮔﻴﺮﻧــﺪﻣﻰ ﺷــﻜﻞ ﻧﻤﻮﻧﻪ { ﻗﺴﻤﺖ Y ½{ﻛﺮ {ﺑﺎ ﺑﻪ Áﺷــﺮ ﻛﻢﻛﻢ {Yﻣﻮ Yﻣﻘﺪ ﻫﺮﭼــﻪ .ﻧﻤﺎﻳﺪﻣﻰ ﻣﻴﺎﻧــﻰ ﺑﻪ ﻧﺴــﺒﺖ ([ﻏﺎÁ{) [M Á ﺳــﻴﻤﺎﻧﻰ ﻫﺎﺗﺮ ،ﺑﺎﺷﺪ ﺑﻴﺸــﺘﺮ ﺳﻨﮕﻰ ﻣﺼﺎﻟﺢ .(3 )ﺷﻜﻞ ﻧﺰ{ﻳﻜﺘﺮﻧﺪ ﻗﺎﺋﻢ ﺑﻪ ًﻻﻣﻌﻤﻮ ÕYﺑﺮ ¹ﻻ ÕﻫﺎﻣﺎﻳﺶM ﺳـﺎﻳﺮ -7 :ﭘﻼﺳﺘﻴﻚ ﺑﺘﻦ Õﻓﺸــﺎ ﻣﺖÁﻣﻘﺎ ﻣﺎﻳﺶM ﺑﺮ ÃÁﻋﻼ ÕﻫﺎﻣﺎﻳﺶM ،ﻻﺳﺘﻴﺴــﻴﺘﻪY µÁﻣﺪ Á ،Õﻣﺤﻮﺳــﻪ ﻣﺎﻳﺶM ﻧﻈﻴﺮ Õ{ﻳﮕــﺮ ¹ﻧﺠﺎY Ãﺗﺎ ﺑﺘﻦ ﻧﺴﻴﺘﺔY{ Á Õﻧﻔﻮ}ﭘﺬﻳﺮ .{ﺷﻮﻣﻰ :Ãﺗﺎ ﺑﺘﻦ ﻧﺴﻴﺘﻪY{ ﻣﺎﻳﺶM -1-7 ﻳﻚ Y Ã{ﺳﺘﻔﺎY ﺑﺎ Ãﺗﺎ ﺑﺘﻦ ﻧﺴﻴﺘﻪY{ ﻣﺸــﺨﺺ ﺣﺠﻢ ﺑﺎ ÕYﻧﻪYﺳــﺘﻮY ﻗﺎﻟﺐ Ãﺗﺎ ﺑﺘﻦ ﻧﺴــﻴﺘﺔY{ .ﻳﺪMﻣﻰ {ﺳﺖ ﺑﻪ ﻣﺼﺎﻟﺢ ½YÁY ﻣﺠﻤــﻮ ﺑﺎ ﺑــﺮYﺑﺮ ﺑﺎﻳﺪ ﻳﻦY { .ﺑﺎﺷــﺪ ﺑﺘــﻦ Ç{ﻫﻨﺪﺗﺸــﻜﻴﻞ ﻓﺎ ﻛــﻪ {ﺷــﻮﻣﻰ ﻣﺸــﺨﺺ ،cﺻﻮ ﻧﺎﻳﻰYﺗﻮ ﭘﻼﺳــﺘﻴﻚ ﺑﺘﻦ { [ﻏــﺎÁ{ Y ﻣﺼﺎﻟــﺢ ﻓــﺎ ﺷــﺘﻦYﻧﮕﻬﺪ Áﺷــﻨﺎ ﺧﺖYﻳﻜﻨﻮ ﺑﺘــﻦ Á ﺷــﺘﻪY{ {ﺧــﻮ { .ﺑﺎﺷﺪﻣﻰ :Õﻣﺤﻮﺳﻪ ﻣﺎﻳﺶM -2-7 ÕﻣﺘﺮﻫﺎYﭘﺎﺗﻌﻴﻴﻦÕYﺑﺮﻣﺎﻳﺶMﻳﻦY .{Y{ {ﻛﺎﺑﺮ ﭘﻼﺳــﺘﻴﻚ ﺑﺘﻦ ﺑﺮﺷــﻰ )ﺗﺤﻜﻴﻢ CU ﻧﻮ Y ﺑﺎﻳﺪ ،ﻣﺎﻳﺶM ﻧﻮ ﻧﺘﺎﻳﺞ Y .ﺑﺎﺷﺪ (Ãﻧﺸﺪ ﻫﻜﺸــﻰ ﻳﺎﻓﺘﻪ ÕﻣﺘﺮﻫﺎYﭘﺎ ½Yﺗــﻮﻣﻰ ﻣﺎﻳــﺶM ﻳﻦY ÃY{ﻳﻮ Õﻫﺎﺗﺤﻠﻴﻞ { Ã{ﺳــﺘﻔﺎY {ﻣﻮ .{ﻧﻤﻮ ﺗﺪﻗﻴﻖ Y ﭘﻼﺳﺘﻴﻚ ﺑﺘﻦ :Õﻧﻔﻮ}ﭘﺬﻳﺮ ﻣﺎﻳﺶM -3-7 Õﻧﻔﻮ}ﭘﺬﻳﺮﺗﻌﻴﻴﻦÕYﺑﺮﻣﺎﻳﺶMﻳﻦY ﺑﻬﺘﺮ .{ﺷﻮﻣﻰ Ã{ﺳﺘﻔﺎY ﭘﻼﺳﺘﻴﻚ ﺑﺘﻦ ÕÁ ﺑﺮ ﻛﻪ ﺑﻰM ﻓﺸﺎ ½{ﻳﺎYﮔﺮ ﺳــﺖY µ{ﻣﻌﺎ ًﺎﺗﻘﺮﻳﺒ ،{ﺷــﻮﻣﻰ µﻋﻤﺎY ﻧﻤﻮﻧﻪ ﺑﺘﻦ ÇY{ﻳﻮ { {ﻣﻮﺟﻮ ﻓﺸــﺎ ½{ﻳﺎYﮔﺮ ،ﺑﻬﺘﺮ cﻋﺒــﺎ ﺑﻪ .ﺑﺎﺷــﺪ ﭘﻼﺳــﺘﻴﻚ ﺗﻔﺎY { [M ﻓﺸــﺎ ¥ﺧﺘﻼY ﻧﺴﺒﺖ ﺑﺎ ﺑﺮYﺑﺮ ﺑﺎﻳــﺪ ،ﭘﻼﺳــﺘﻴﻚ ﺑﺘﻦ ﻧﻤﻮﻧﻪ Á ﺑﺎﻻ{ﺳــﺖ ﺑﻴﻦ [M ﻓﺸــﺎ ¥ﺧﺘﻼY ÃY{ﻳﻮ ﺿﺨﺎﻣﺖ ﺑﺮ ﺗﻘﺴﻴﻢ {ﺳﺖﭘﺎﻳﻴﻦ }ﻛﺮ ﺑﻪ ¹ﻻ .ﺑﺎﺷــﺪ ﭘﻼﺳــﺘﻴﻚ ﺑﺘﻦ ﻛﺎﻫﺶ Á ﺑﻨﺘﻮﻧﻴﺖ ﻳﺶYﻓﺰY ﻛﻪ ﺳــﺖY ﻳﺶYﻓﺰY Á ½ﺳــﻴﻤﺎ ﺑــﻪ [M ﻧﺴــﺒﺖ ﺑﺘﻦ Õﻧﻔﻮ}ﭘﺬﻳﺮ ،ﻫﺎﻧﻪYﺳــﻨﮕﺪ ﺣﺠﻢ .{ﻫﻨﺪﻣﻰ ﻛﺎﻫﺶ Y ﭘﻼﺳﺘﻴﻚ :ﻫﺎﻣﺎﻳﺶM ¹ﻧﺠﺎY ﺳﻦ -8 ﻣﺖÁﻣﻘﺎ ÕﻫﺎﻣﺎﻳﺶM ¹ﻧﺠــﺎY ½ﻣﺎ ًﺎﺗﺮﺟﻴﺤ ،ﻻﺳﺘﻴﺴﻴﺘﻪY µÁﻣﺪ Á Õﻓﺸﺎ µÁﻣﺪ cYﺗﻐﻴﻴﺮ ﻛﻪ ﺑﺎﺷﺪ ﻫﻨﮕﺎﻣﻰ ﺑﺎﻳﺪ ﺑﺎﺷﺪ ﻧﺎﭼﻴﺰ ½M Y ﭘﺲ ﻻﺳﺘﻴﺴــﻴﺘﻪY Y{ﻳﻮ ÕYﺑﺮ Ãﺷﺪ ÕﮔﻴﺮÃYﻧﺪY µÁﻣﺪ ﺗﺎ ﻻﺳﺘﻴﺴﻴﺘﻪY µÁﻣﺪ ﺑﻪ ،ﭘﻼﺳﺘﻴﻚ ﺑﺘﻦ .ﺑﺎﺷﺪ ﻧﺰ{ﻳﻚ ½M ﻧﻬﺎﻳﻰ ¹ﻧﺠﺎY ،Õﻧﻔﻮ}ﭘﺬﻳــﺮ ﻣﺎﻳﺶM ÕYﺑــﺮ ﺟﻬﺖ { ،ÃÁ 28 ﺳــﻦ { ﻣﺎﻳﺶM Õﻧﻔﻮ}ﭘﺬﻳﺮ ﺿﺮﻳﺐ Á Ã{ﺑــﻮ ½ﻃﻤﻴﻨﺎY ½M ﻧﻬﺎﻳﻰ Yﻣﻘﺪ ﺑﻪ ﻧﺴﺒﺖ Y Õﻛﻤﺘﺮ .{Y{ ﻫﺪYﺧﻮ {ﺳﺖ ﺑﻪ :Õﮔﻴﺮﻧﺘﻴﺠﻪ -9 ﺛﺎﺑﺖ ﺑﺎ ،ﻧﻪYﺳــﻨﮕﺪ ﺳــﺎﻳﺰ ﻛﺎﻫﺶ - ﻳﺶYﻓﺰY ﺑﻪ ﻣﻨﺠﺮ ،[ﻏﺎÁ{ ﺣﺠﻢ ½ﻣﺎﻧﺪ ﺳﻼﻣﭗY Á {ﺷﻮﻣﻰ ﻻﺳﺘﻴﺴﻴﺘﻪY µÁﻣﺪ .{ﻫﺪﻣﻰ ﻛﺎﻫﺶ ﻧﻴﺰ Y ﻳــﺶYﻓﺰY ،ﭘﻼﺳــﺘﻴﻚ ﺑﺘــﻦ { - ،ﺷــﺪﮔﻰYﺟﺪ ﻛﺎﻫــﺶ ،ﺑﻨﺘﻮﻧﻴــﺖ Y ﻧﺸﺴﺖ Á ﺟﻮﺷﺶ Á ﺧﺘﮕﻰYﻧﺪY[M .{ﺷﻮﻣﻰ ﻣﻮﺟﺐ ½ﺳــﻴﻤﺎ ﺑــﻪ [M Õﻫﺎﻧﺴــﺒﺖ { - Õ{ﻳﺎ ﺛﺮY ،[ﻏﺎÁ{ ﺣﺠﻢ ﻛﺎﻫﺶ ،{ﻳﺎ .{Yﻧﺪ ﻻﺳﺘﻴﺴﻴﺘﻪY µÁﻣﺪ ﻳﺶYﻓﺰY ﺑﺮ ﻛﻢYﺗﺮ {ﻟﻴﻞ ﺑﻪ ،ﻃﺒﻴﻌﻰ ﻣﺼﺎﻟﺢ { - ،ﺷﻜﺴﺘﻪ ﻣﺼﺎﻟﺢ ﺑﻪ ﻧﺴــﺒﺖ ﺑﻴﺸــﺘﺮ ﺑﺮ ،½ﺳــﻴﻤﺎ ﺑــﻪ [M ﻧﺴــﺒﺖ ﺗﻐﻴﻴــﺮ ﺑﺘﻦ ﻻﺳﺘﻴﺴــﻴﺘﻪY µÁﻣــﺪ cYﺗﻐﻴﻴــﺮ .{Y{ Õﺑﻴﺸﺘﺮ ﺗﺄﺛﻴﺮ ﭘﻼﺳﺘﻴﻚ ﺿﺨﺎﻣﺖÁÕYﮔﺬﻛﻼﻫﻚÃ{ﻣﺎﻧﻮ- ﻻﺳﺘﻴﺴــﻴﺘﺔY µÁﻣﺪ Á ﻣﺖÁﻣﻘﺎ ﺑﺮ ½M ﻳﺶYﻓﺰY .ﺑﺎﺷﺪﻣﻰ ﻣﺆﺛﺮ ﭘﻼﺳﺘﻴﻚ ﺑﺘﻦ µÁﻣﺪ ÕYﮔﺬﻛﻼﻫﻚ Ã{ﻣــﺎ ﺿﺨﺎﻣﺖ Y Õﻓﺸــﺎ ﻣﺖÁﻣﻘﺎ Á ﻻﺳﺘﻴﺴــﻴﺘﻪY .{ﻫﺪﻣﻰ ﻛﺎﻫﺶ Email:hra@hra.ir 2000kg/cm 2 {Áﺣﺪ ﻻﺳﺘﻴﺴﻴﺘﺔY µÁﻣﺪ ﺑﺎ ﭘﻼﺳﺘﻴﻚ ﺑﺘﻦ ﻧﻤﻮﻧﻪ { ﺷﻜﺴﺖ -3 ﺷﻜﻞ
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