Zosakaniza Zochepetsa Madzi Zogwira Ntchito Kwambiri: Kupititsa patsogolo Kuchita Bwino kwa Konkriti Pakumanga Kobiriwira
Minda Yaikulu Yogwiritsira Ntchito
Zosakaniza zochepetsera madzi bwino kwambiri (monga zosakaniza zochokera ku polycarboxylate) ndizo zodziwika bwino kwambiri zochepetsera madzi zomwe zilipo pamsika. Zimagwira ntchito popanga gawo logawanikira pamwamba pa tinthu ta simenti, kuletsa kusonkhana kwa tinthu ta simenti ndikupangitsa kuti konkire iyende bwino komanso kuti igwire bwino ntchito. Kugawa kumeneku sikungochepetsa kugwiritsa ntchito madzi komanso kumawonjezera kuchuluka ndi mphamvu ya konkire. Poyerekeza ndi zosakaniza zachikhalidwe zochepetsera madzi, mitundu yogwira ntchito bwino imapereka kuchuluka kwa madzi (nthawi zambiri 25%-40%) ndi kufunikira kocheperako kwa mlingo (nthawi zambiri 0.1%-0.3% ya kuchuluka kwa zinthu zolimbitsa simenti), zomwe zimapangitsa kuti chilengedwe chikhale chochepa.
Mu ntchito zomanga, kugwiritsa ntchito zinthu zochepetsera madzi kungathandize kwambiri kuti konkire ikhale yolimba komanso yolimba, zomwe zimathandiza kuti nyumba zisamavutike kugwira ntchito. Mwachitsanzo, pomanga nyumba zazitali komanso milatho ikuluikulu, zinthu zochepetsera madzi zimathandiza kuti konkire iyende bwino pogwiritsa ntchito mphamvu zambiri, zomwe zimathandiza kuti ntchito yomanga ikhale yosavuta. Kuphatikiza apo, zinthu zochepetsera madzi zimatha kuchepetsa kutuluka kwa madzi ndi kugawanika kwa konkire, zomwe zimapangitsa kuti ikhale yofanana komanso yogwirizana.
Pa ntchito yomanga nyumba zobiriwira, makhalidwe a chilengedwe a zinthu zochepetsera madzi ndi ofunikira kwambiri. Kugwiritsa ntchito zinthu zochepetsera madzi moyenera kungachepetse kugwiritsa ntchito simenti, motero kumachepetsa mpweya woipa wa carbon. Kuphatikiza apo, zinthu zosakanikiranazi zitha kuwonjezera kulimba kwa konkriti, kuchepetsa ndalama zokonzera komanso kugwiritsa ntchito zinthu zofunika pa nyumba. Zinthu zambiri zochepetsera madzi moyenera zapezanso ziphaso zapadziko lonse lapansi zokhudzana ndi chilengedwe, zomwe zikugwirizana ndi zolinga zachitukuko chokhazikika cha zomangamanga zobiriwira.
Ndi chitukuko chopitilira cha ukadaulo womanga, kugwiritsa ntchito zinthu zochepetsera madzi kukukulirakuliranso. Mwachitsanzo, mu konkriti yogwira ntchito bwino (HPC) ndi konkriti yodzipangira yokha (SCC), zinthu zochepetsera madzi ndi zinthu zofunika kwambiri zomwe zimatsimikizira kuti konkriti imadzipangira yokha pansi pa mikhalidwe yolimba kwambiri komanso yolimba. Kuphatikiza apo, zinthu zochepetsera madzi zitha kugwiritsidwa ntchito limodzi ndi zinthu zina zochepetsera madzi (monga zoletsa ndi zinthu zolowetsa mpweya) kuti ziwonjezere mphamvu za konkriti.
Mu ntchito zomanga, kugwiritsa ntchito zinthu zochepetsera madzi kungathandize kwambiri kuti konkire ikhale yolimba komanso yolimba, zomwe zimathandiza kuti nyumba zisamavutike kugwira ntchito. Mwachitsanzo, pomanga nyumba zazitali komanso milatho ikuluikulu, zinthu zochepetsera madzi zimathandiza kuti konkire iyende bwino pogwiritsa ntchito mphamvu zambiri, zomwe zimathandiza kuti ntchito yomanga ikhale yosavuta. Kuphatikiza apo, zinthu zochepetsera madzi zimatha kuchepetsa kutuluka kwa madzi ndi kugawanika kwa konkire, zomwe zimapangitsa kuti ikhale yofanana komanso yogwirizana.
Pa ntchito yomanga nyumba zobiriwira, makhalidwe a chilengedwe a zinthu zochepetsera madzi ndi ofunikira kwambiri. Kugwiritsa ntchito zinthu zochepetsera madzi moyenera kungachepetse kugwiritsa ntchito simenti, motero kumachepetsa mpweya woipa wa carbon. Kuphatikiza apo, zinthu zosakanikiranazi zitha kuwonjezera kulimba kwa konkriti, kuchepetsa ndalama zokonzera komanso kugwiritsa ntchito zinthu zofunika pa nyumba. Zinthu zambiri zochepetsera madzi moyenera zapezanso ziphaso zapadziko lonse lapansi zokhudzana ndi chilengedwe, zomwe zikugwirizana ndi zolinga zachitukuko chokhazikika cha zomangamanga zobiriwira.
Ndi chitukuko chopitilira cha ukadaulo womanga, kugwiritsa ntchito zinthu zochepetsera madzi kukukulirakuliranso. Mwachitsanzo, mu konkriti yogwira ntchito bwino (HPC) ndi konkriti yodzipangira yokha (SCC), zinthu zochepetsera madzi ndi zinthu zofunika kwambiri zomwe zimatsimikizira kuti konkriti imadzipangira yokha pansi pa mikhalidwe yolimba kwambiri komanso yolimba. Kuphatikiza apo, zinthu zochepetsera madzi zitha kugwiritsidwa ntchito limodzi ndi zinthu zina zochepetsera madzi (monga zoletsa ndi zinthu zolowetsa mpweya) kuti ziwonjezere mphamvu za konkriti.
Mafotokozedwe
| Dzina la Chinthu | Sodium Naphthalene Sulphonate Formaldehyde (SNF/PNS/FDN/NSF) | |||||||||
| Mayina Ena | Poly Naphthalene Sulfonate | |||||||||
| Sulfonated Naphthalene Formaldehyde | ||||||||||
| Superplasticizer Yochokera ku Naphthalene | ||||||||||
| Kuchuluka kwa Sodium Sulphate | 5% 10% 18% | |||||||||
| Maonekedwe | Ufa Wofiirira Wopepuka | |||||||||
| Kulongedza | Chikwama cha 25KG | |||||||||
| CAS NO | 36290-04-7 | |||||||||
| Khodi ya HS | 38244010 | |||||||||
| Kuchuluka | 14-15MTS ya 20'FCL | |||||||||
| Kugwiritsa ntchito | Kusakaniza konkriti, kumathandizira kuyenda bwino kwa madzi | |||||||||
Pepala Lowongolera Ubwino
| ZINTHU | SNF-A | SNF-B | SNF-C | ||||
| Zamkati Zolimba ≥ | 92% | 92% | 92% | ||||
| Mtengo wa PH | 7-9 | 7-9 | 7-9 | ||||
| Zomwe zili mu Chlorides ≤ | 0.30% | 0.40% | 0.50% | ||||
| Kuchuluka kwa Sodium Sulfate ≤ | 5% | 10% | 18% | ||||
| Net Wowuma Kutuluka kwa Madzi (mm) ≥ | 250 | 240 | 230 | ||||
| Kuchepetsa Madzi Kwambiri (%) | 26 | 25 | 23 |
Powombetsa mkota
Zosakaniza zochepetsera madzi ndi zowonjezera zofunika kwambiri muukadaulo wamakono wa konkriti. Sikuti zimangowonjezera magwiridwe antchito a konkriti komanso zimathandiza kumanga kobiriwira komanso chitukuko chokhazikika. Ndi kupita patsogolo kwaukadaulo kosalekeza, mwayi wogwiritsa ntchito zosakaniza zochepetsera madzi udzakhala waukulu kwambiri.