Kugwiritsa Ntchito Zochepetsera Madzi, Ma Retarders, ndi Superplasticizers

Zochepetsera madzi, zobwezeretsanso, ndi zopangira ma superplasticizer ndizophatikizika ndi mankhwala omwe amagwiritsidwa ntchitokonkriti zosakanizakupititsa patsogolo mawonekedwe ake ndikuwongolera magwiridwe antchito a konkriti munthawi yake yatsopano komanso yowumitsidwa. Chilichonse mwazophatikizirazi chimakhala ndi cholinga chapadera, ndipo chimagwiritsidwa ntchito nthawi zambiri pomanga kuti akwaniritse zomwe akufuna. Tiyeni tifufuze kugwiritsa ntchito zochepetsera madzi, zobwezeretsanso, ndi ma superplasticizer mwatsatanetsatane:

1. Zochepetsera Madzi:

Cholinga:

• Kuchepetsa Kuchuluka kwa Madzi: Ochepetsa madzi, omwe amadziwikanso kuti ochepetsera madzi kapena mapulasitiki, amagwiritsidwa ntchito kuchepetsa kuchuluka kwa madzi ofunikira mu kusakaniza konkire popanda kusokoneza ntchito yake.

Ubwino waukulu:

• Kupititsa patsogolo Kugwira Ntchito: Mwa kuchepetsa madzi, zochepetsera madzi zimapangitsa kuti ntchito ikhale yogwira ntchito komanso yogwirizana ndi kusakaniza konkire.
• Kuwonjezeka kwa Mphamvu: Kuchepa kwa madzi nthawi zambiri kumapangitsa kuti konkriti ikhale yolimba komanso yolimba.
• Kutsirizitsa Kowonjezera: Konkire yokhala ndi zochepetsera madzi nthawi zambiri imakhala yosavuta kumaliza, zomwe zimapangitsa kuti pakhale malo osalala.

Mapulogalamu:

• Konkire Yamphamvu Kwambiri: Zochepetsera madzi zimagwiritsidwa ntchito popanga konkire yamphamvu kwambiri komwe kutsika kwa simenti yamadzi kumakhala kofunikira.
• Kupopa Konkire: Amathandizira kupopa konkire pamtunda wautali posunga kusasinthasintha kwamadzimadzi.

2. Ochedwa:

Cholinga:

• Kuchedwetsa Nthawi Yoyikira: Zotsitsimutsa ndi zosakaniza zomwe zimapangidwira kuti zichepetse nthawi yoyika konkriti, zomwe zimalola kuti pakhale nthawi yayitali yogwira ntchito.

Ubwino waukulu:

• Kugwira Ntchito Kwawonjezeke: Zolepheretsa zimalepheretsa konkriti isanakwane, kupereka nthawi yochulukirapo yosakaniza, kunyamula, ndi kuyika zinthuzo.
• Kuchepetsa Kung'amba: Kuyika pang'onopang'ono kumachepetsa chiopsezo cha kusweka, makamaka nyengo yotentha.

Mapulogalamu:

• Hot Weather Concreting: M'malo omwe kutentha kwambiri kumatha kufulumizitsa kukhazikitsa konkriti, zochepetsera zimathandizira kuwongolera nthawi yoyika.
• Ntchito Zazikulu Zomangamanga: Kwa ma projekiti akulu omwe mayendedwe ndi kuyika konkriti kumatenga nthawi yayitali.

3. Superplasticizers:

Cholinga:

• Kupititsa patsogolo Kugwira Ntchito: Ma Superplasticizers, omwe amadziwikanso kuti ochepetsera madzi apamwamba, amagwiritsidwa ntchito kuti awonjezere kwambiri ntchito ya konkire popanda kuwonjezera madzi.

Ubwino waukulu:

• Kugwira Ntchito Kwambiri: Ma Superplasticizers amalola kupanga konkire yogwira ntchito kwambiri komanso yoyenda ndi madzi otsika simenti.
• Kuwonjezeka kwa Mphamvu: Monga zochepetsera madzi, ma superplasticizers amathandizira kuti pakhale mphamvu ya konkriti yowonjezereka popangitsa kuti simenti yotsika yamadzi ikhale yochepa.

Mapulogalamu:

• Self-Compacting Concrete (SCC): Superplasticizers nthawi zambiri amagwiritsidwa ntchito popanga SCC, komwe kumayenda kwambiri komanso kudziwongolera kumafunika.
• Konkriti Yogwira Ntchito Kwambiri: Pamapulogalamu omwe amafunikira mphamvu zambiri, kulimba, komanso kuchepa kwapakatikati.

Mfundo Zofanana:

1. Kugwirizana: Zosakaniza ziyenera kugwirizana ndi zipangizo zina mu konkire kusakaniza, kuphatikizapo simenti, aggregates, ndi zina zowonjezera.
2. Kuwongolera Mlingo: Kuwongolera mwatsatanetsatane mlingo wa admixture ndikofunikira kuti mukwaniritse zomwe mukufuna. Kugwiritsa ntchito mopitirira muyeso kungayambitse mavuto.
3. Kuyesa: Kuyesa nthawi zonse ndi njira zowongolera khalidwe ndizofunika kuti zitsimikizire kuti zosakanizazo zimagwira ntchito bwino pakusakaniza konkire.
4. Malingaliro Opanga: Kutsatira malingaliro ndi malangizo operekedwa ndi opanga admixture ndikofunikira kuti mugwire bwino ntchito.

Pomaliza, kugwiritsa ntchito zochepetsera madzi, zobwezeretsanso, ndi ma superplasticizers mu zosakaniza za konkire kumapereka maubwino angapo, kuchokera pakugwira ntchito bwino komanso nthawi yayitali yokhazikitsa mpaka kukulitsa mphamvu ndi kulimba. Kumvetsetsa zosowa zenizeni za ntchito yomanga ndikusankha kusakaniza koyenera kapena kuphatikiza kophatikizana ndikofunikira kuti mukwaniritse zofunikira za konkriti. Ma Admixture Mlingo ndi mapangidwe osakanikirana a konkire ayenera kukonzedwa mosamala ndikuyesedwa kuti zitsimikizire kuti konkriti ikugwira ntchito bwino komanso kukhazikika kwanthawi yayitali.