Umehluko Phakathi Kwezithasiselo Nezingxube

Umehluko Omkhulu - Izithasiselo vs Izingxube

Izithasiselo kanye nezingxube kuyizingxenye zamakhemikhali ezifakwa kwezinye izinto ukuze kuthuthukiswe izakhiwo zazo zamakhemikhali nezomzimba. Nakuba zombili ziyizingxenye ezifakwe kwezinye izinto, kunomehluko phakathi kwezithasiselo kanye nezingxube uma kukhulunywa ngezingxube zesimende kanye nezingxenyana zekhonkrithi. Izithasiselo zingaba izithasiselo zokudla noma noma iyiphi enye into efakwe entweni ethile ngobuningi obuncane ukuze ithuthukiswe noma igcinwe. Izingxube, ngakolunye uhlangothi, ziyizingxenye ezifakwa engxubeni yekhonkrithi ngenkathi ixutshwa. Umehluko omkhulu phakathi kwezithasiselo kanye nezingxube ukuthi izithasiselo zengezwa kusimende ngesikhathi sokukhiqiza ukuze kutholakale izakhiwo ezintsha zesimende kanti izingxube zengezwa ezingxubeni zekhonkrithi ngenkathi kuhlanganiswa ukuze kutholakale izakhiwo ezintsha.

Ziyini Izithasiselo

Izithasiselo ziyizingxenye zamakhemikhali ezifakwa kusimende ngesikhathi sokukhiqiza ukuze kutholakale izakhiwo ezintsha zesimende. Izinto zokusetshenziswa ezisetshenziswa ekukhiqizeni usimende yi-lime, i-silica, i-alumina kanye ne-iron oxide. Lezi zinto zigaywa zibe yimpuphu ecolekile bese zixutshwa bese ziyosiwa. Ukushisa kwale ngxube kufinyelele cishe ku-1500oC kuzoqala ukusabela kwamakhemikhali amaningi okunikeza ukwakheka kwamakhemikhali kokugcina kwesimende.

Ukuze kutholakale izakhiwo ezifiselekayo, kunezelwa izithasiselo ezahlukahlukene kusimende ngenkathi kukhiqizwa.

Izisheshisi
Kufakwa ama-accelerator ukuze kuncishiswe isikhathi sokumiswa kukasimende futhi kusheshiswe ukuthuthukiswa kwamandla okucindezela.

Abahlehlisi
Ama-retarders andisa isikhathi sokumiswa kwe-simende. Lokhu kusiza i-simende ukuthi ibe nesikhathi esanele sokufakwa kwe-slurry emithonjeni ejulile.

Izisabalalisi
Izihlanzi ziyangezwa ukuze kuncishiswe ukujiya kwe-simende kanye nokuqinisekisa ukuthi udaka lususwa kahle ngesikhathi sokufakwa.

Ama-Ejenti Okulawula Ukulahlekelwa Uketshezi
Ama-ejenti okulawula ukulahleka koketshezi alawula ukulahleka kwamanzi kusuka kusimende kuya ekwakhekeni.

Ezinye izinto zokusheshisa ezifakwe kusimende yi-calcium chloride (CaCl2), i-sodium chloride (NaCl), amanzi olwandle kanye ne-potassium chloride (KCl).

Yini i-Admixtures
Izingxube ziyizingxenye zamakhemikhali ezifakwa ezingxubeni zekhonkrithi ngenkathi zixutshwa ukuze kutholakale izakhiwo ezintsha. Izingxube ziyizingxenye ezikukhonkrithi ngaphandle kwesimende, amanzi kanye nama-aggregates. Izingxube zengezwa kusimende ngokushesha ngaphambi noma ngesikhathi sokuxuba ingxube yekhonkrithi.

Izingxube zengezwa ku:

-Ukungenisa umoya ngamabomu
-Nciphisa isidingo samanzi
-Khulisa ukusebenza kahle
-Lungisa isikhathi sokuxazulula
-Lungisa amandla

Kunezinhlobo ezahlukene zezingxube ezihlukaniswe kanje ngezansi kanye nezibonelo ezithile.

Izingxube zokungenisa umoya – usawoti wama-resin okhuni, ezinye izihlanzi zokwenziwa, usawoti wama-asidi kaphethiloli
Ama-plasticizer
Izingxube ezinciphisa amanzi – ama-lignosulfonates, ama-hydroxylated carboxylic acid, njll.
Izingxube ezisheshisayo – i-calcium chloride, i-sodium thiocyanate, njll.
Izingxube ezibambezela ukuguga - i-lignin, i-borax, ushukela, njll.
Izithibi zokugqwala, njll.

Umehluko Phakathi Kwezithasiselo Nezingxube

Incazelo
Izithasiselo: Izithasiselo ziyizingxenye zamakhemikhali ezifakwe kusimende ngesikhathi sokukhiqiza ukuze kutholakale izakhiwo ezintsha zesimende.

Izingxube: Izingxube ziyizakhi zamakhemikhali ezifakwa ezingxubeni zekhonkrithi ngenkathi zixutshwa ukuze kutholakale izakhiwo ezintsha.

Impahla eluhlaza
Izithasiselo: Izithasiselo zengezwa kusimende.

Izingxube: Izingxube zengezwa kukhonkrithi.

Ukwengeza
Izithasiselo: Izithasiselo zengezwa kusimende ngenkathi kukhiqizwa.

Izingxube: Izingxube zengezwa kukhonkrithi ngaphambi noma ngesikhathi sokuxuba.

Izinhlobo Ezihlukene
Izithasiselo: Izithasiselo ezahlukene zihlukaniswa njengezisheshisi, izithiyo, izihlakaza, ama-ejenti okulawula ukulahleka koketshezi, njll.

Izingxube: Izingxube ezahlukene zihlukaniswa njengezingxube zokugcina umoya, izingxube zepulasitiki, izingxube ezinciphisa amanzi, njll.

Isiphetho
Izithasiselo zengezwa kusimende ngenkathi kukhiqizwa. Izithasiselo zengezwa engxubeni yekhonkrithi ngaphambi noma ngesikhathi kuxutshwa. Umehluko omkhulu phakathi kwezithasiselo nezithasiselo ukuthi izithasiselo zengezwa kusimende ngesikhathi kukhiqizwa ukuze kutholakale izakhiwo ezintsha zesimende kanti izithasiselo zengezwa ezingxubeni zekhonkrithi ngenkathi kuxutshwa ukuze kutholakale izakhiwo ezintsha.