Chimachitika ndi Chiyani Ngati Konkire Yanyowa Kwambiri?

1. Mawu Oyamba

Konkirendiye mwala wapangodya wa zomangamanga zamakono. Kuyambira misewu ndi milatho kupita ku nyumba ndi nyumba zosanjikizana, kulimba kwake komanso kusinthasintha kwake kumapangitsa kuti ikhale yomangira nyumba padziko lonse lapansi. Komabe, ntchito ya konkriti imadalira kwambiri kusakanikirana kwake. Chimodzi mwazofunikira kwambiri ndi chiŵerengero cha madzi ndi simenti (w / c). Ngakhale kuti madzi ndi ofunikira kuti azitha kuyenda bwino komanso kuti azitha kugwira ntchito, kuchulukitsitsa kungayambitse mavuto ambiri.KimaCell® amafufuza zomwe zimachitika konkire ikanyowa kwambiri, ndikuwunika zotsatira zake pamphamvu, kulimba, kukongola, komanso magwiridwe antchito anthawi yayitali.

2. Udindo wa Madzi mu Konkire

Madzi mu konkriti amagwira ntchito zingapo:

• Imayambitsa ma chemical reaction ndi simenti (hydration)
• Imawonjezera kuthekera kwa kuyika ndi kumaliza
• Amathandizira kuphatikizika ndi kuphatikiza

Komabe, 25-30% yokha yamadzi ndi kulemera kwa simenti ndiyofunika kuti ikhale ndi madzi okwanira. Madzi aliwonse owonjezera amachulukitsa chiŵerengero cha w/c ndikuchepetsa kusakaniza, kusokoneza chomaliza.

3. Kumvetsetsa Chiŵerengero cha Madzi ndi Simenti

Chiŵerengero cha w/c ndi chiŵerengero cha kulemera kwa madzi ndi kulemera kwasimenti yogwiritsidwa ntchito posakaniza konkire. Chiŵerengero chochepa chimatsogolera ku mphamvu zapamwamba ndi kulimba koma kuchepetsa kugwira ntchito. Chiŵerengero chapamwamba chimapangitsa kuti ntchito ikhale yabwino koma imachepetsa mphamvu ndikuwonjezera porosity. Magawo abwino nthawi zambiri amachokera ku 0.4 mpaka 0.6 pazinthu zambiri zamapangidwe.

4. Zizindikiro za Konkire Yonyowa Kwambiri

Konkriti ikanyowa kwambiri, zizindikiro zingapo zimawonekera:

• Kutuluka magazi kwambiri (madzi okwera pamwamba)
• Kupatukana kwa magulu ndiphala la simenti
• Pang'onopang'ono kukhazikitsa nthawi
• Makhalidwe otsika kwambiri kuposa momwe amafotokozera
• Pamwamba pamakhala lalanje kapena fumbi

5. Zotsatira pa Compressive Mphamvu

Mphamvu yopondereza ndiye chinthu chofunikira kwambiri cha konkriti pamapulogalamu amapangidwe. Kuchuluka kwa madzi kumabweretsa kuwonjezeka kwa capillary porosity, zomwe zimafooketsa matrix. Kafukufuku akuwonetsa kuti kukulitsa chiŵerengero cha w / c kuchokera ku 0.4 mpaka 0.6 kungachepetse mphamvu yopondereza mpaka 30%. Kutayika kumeneku kumasokoneza mphamvu yonyamula katundu ndipo kungayambitse kulephera kwadongosolo msanga.

6. Impact pa Durability

Kukhazikika kumatanthauza kuthekera kwa konkriti kupirira chilengedwe monga kuzizira kwamadzi, kukhudzidwa ndi mankhwala, ndi kuyabwa. Madzi ochulukirapo amawonjezera kupenya, zomwe zimapangitsa kuti konkriti itengeke kwambiri ndi:

• Kulowetsedwa kwa chloride ndi chitsulo cholimbikitsira dzimbiri
• Sulfate attack ndi alkali-silika reaction
• Kulowa kwa chinyezi kumabweretsa kuwonongeka kwa kuzizira

7. Kusweka ndi Kuchepa

Kuchuluka kwa madzi kumapangitsa kuti kuyanika kwakukulu kumachepa chifukwa kusakaniza kumataya madzi ochulukirapo. Izi zimabweretsa:

• Kuphulika kwa pulasitiki
• Kuyanika ming'alu ya shrinkage
• Crazing (zong'amba bwino pamwamba)

Ming'alu iyi imachepetsa kukhulupirika ndi kukongola kwa konkire ndipo imatha kukhala njira zamadzi ndi mankhwala.

8. Zofooka Pamwamba

Kusakaniza konyowa nthawi zambiri kumabweretsa kusamalitsa bwino chifukwa cha:

• Kutuluka magazi ndi laitance
• Fumbi (wosanjikiza wofooka womwe umakonda kuvala)
• Kusakhazikika bwino kwa zokutira ndi zomaliza

Zolakwika zotere sizongokongoletsa komanso zimagwira ntchito, makamaka pansi ndi pansi.

9. Kukhazikitsa Nthawi ndi Kuthetsa Nkhani

Mopambanitsakonkire yonyowazimatenga nthawi kuti zikhazikike. Kukhazikitsa nthawi yowonjezereka kumasokoneza ndandanda yomanga ndipo kungayambitse kusamalidwa bwino. Kusamalidwa bwino kungayambitse:

• hydration yosakwanira
• Kuchepa mphamvu kwamphamvu
• Kusweka pamwamba

10. Kulekanitsa Uchi ndi Kusaka Uchi

Madzi ochulukirapo angapangitse kuti zolemera kwambiri zikhazikike pamene phala la simenti lopepuka likukwera, zomwe zimapangitsa kuti pakhale tsankho. Izi zimayambitsa:

• Kupanga uchi (zopanda mkati mwa konkire)
• Kugawidwa kosagwirizana kwazinthu
• Kuchepetsa kukhulupirika kwamapangidwe

11. Nkhawa za Kuchita Nthawi Yaitali

Konkriti yonyowa kwambiri imatha kuyesedwa koyambirira koma imakhala ndi:

• Kuchepetsa moyo
• Kuwonongeka koyambirira
• Kuwonjezeka kwa ndalama zosamalira

Izi nthawi zambiri zimawonekera pakapita zaka zambiri, zomwe zimapangitsa kuwongolera koyambirira kukhala kofunikira.

12. Chitetezo ndi Zowonongeka Zapangidwe

Mamembala opangidwa kuchokera ku konkire yofooka amakhala ndi chiopsezo chachikulu:

• Mizati ndi mizati sizingagwirizane ndi mapangidwe
• Malo ong'ambika kapena opindika amatha kuvulaza okhalamo
• Kuchuluka kwa dzimbiri kwa kulimbikitsa kungayambitse kugwa

13. Zotsatira Zachuma

Kugwiritsa ntchito madzi ochulukirapo pakusakaniza kungachepetse mtengo wanthawi yochepa pakuwongolera magwiridwe antchito, koma zovuta zazachuma zomwe zimatenga nthawi yayitali ndi izi:

• Kukonza ndi kukonzanso ndalama
• Ngongole zamalamulo
• Kuchepetsa moyo wautumiki

14. Njira Zabwino Zopewera Konkire Yonyowa Kwambiri

Kupewa madzi ochulukirapo:

• Gwiritsani ntchitozochepetsera madzi or plasticizers
• Gwiritsani ntchito batching molamulidwa ndi kusakaniza
• Chitani mayeso otsika ndikusintha zomwe zili m'madzi molingana
• Phunzitsani ogwira ntchito pamalowo za kusasinthasintha kosasinthasintha

Madzi ndi lupanga lakuthwa konsekonse mu konkire. Ngakhale kuli kofunikira kuti hydration ndi ntchito, madzi owonjezera amasokoneza pafupifupi katundu aliyense wofunika wa konkire wowuma. Kuchokera ku mphamvu yocheperako komanso kulimba mpaka kung'ambika komanso kuwonongeka kwa pamwamba, zoopsa za konkriti yonyowa kwambiri ndizofunika kwambiri. Pomvetsetsa zotsatira zake ndikugwiritsa ntchito kamangidwe koyenera kosakanikirana ndi kuwongolera bwino, zoopsazi zitha kuchepetsedwa, kuwonetsetsa kuti nyumba za konkriti zokhalitsa komanso zotetezeka.

At Kima Chemical, timapereka apamwamba kwambirizowonjezera zowonjezerakuphatikizapo:

Mtengo wa HPMC(Hydroxypropyl Methylcellulose)- yosungira bwino madzi komanso kugwira ntchito

MHEC(Methyl Hydroxyethyl Cellulose) -yabwino kukhuthala kosasinthasintha komanso kugwiritsa ntchito bwino

RDP(Redispersible Polymer Powder)- kuti mukhale ndi mphamvu zomangirira, kusinthasintha, komanso kukana ming'alu
Kaya mukupanga konkire yomaliza yosalala, yowongoka, kapena ntchito zosinthika zamakina amakono otchinjiriza,Kima Chemicalzowonjezera zimakuthandizani kuti mupereke zinthu zokhalitsa, zogwira ntchito kwambiri zomwe makasitomala anu angakhulupirire.