Zowonjezera Konkire Zopepuka | Zida Zapamwamba Zotulutsa thovu pa Ma Cellular Concrete
Zinayambira Padenga ku Phoenix
Ndimakumbukira bwino ntchitoyo. July ku Phoenix. Wofuna chithandizo ankafuna zodzitetezera zopepuka kuti akonzenso denga lamalonda. Choyimiracho chinafuna kuuma kolimba kwa 40 pcf. Ine ndi gulu langa takhala tikugwiritsa ntchito mankhwala opangira thovu opangidwa ndi mapuloteni kwa zaka zambiri. Zinagwira ntchito, koma zinali zovuta. Patsiku lino, ndi kutentha kozungulira kukankhira 115 ° F, chithovu cha protein chinagwa tisanathire n’komwe bwalo loyamba. Ndi pamene tinasintha. Tinali ndi synthetic thovu wothandizira ma cell opepuka konkire m'galimoto, ngati zosunga zobwezeretsera. Tinasakaniza mtanda watsopano, adayendetsa jenereta ya thovu, ndipo kusiyana kwake kunali kofulumira. The thovu anagwira. Kuthira kunayenda bwino. Kachulukidwe kameneka kanafika pazimenezi. Tsiku limenelo, Ndinakhala wokhulupirira.
Chomwe Chimakhala Chothandizira Chopangira thovu?
Funsani anthu asanu pa malo antchito funso ili, ndipo inu mukhoza kupeza mayankho asanu osiyana. Tiyeni tifotokoze.
Momwe Imagwirira Ntchito
Chopangidwa ndi thovu chopangira zinthu ndi surfactant yamadzimadzi. Mumachepetsera nazo madzi, Kenako perekani yankho kudzera mu jenereta ya thovu pansi pa mpweya wothinikizidwa. Jenereta imakakamiza madziwo kukhala mamiliyoni ang'onoang'ono, khola thovu. Timabaya thovu lomwe linali litapangidwa kale mu slurry ya simenti (kapena matope) pomwe pa chosakanizira. Chithovucho chimachotsa gulu lalikulu. Chotsatira? Wopepuka, konkire yotsekera yomwe imatha kulemera pang'ono ngati 20 pcf.
Chemistry ndi yosavuta. Zopangidwa Nthawi zambiri amapangidwa ndi sodium lauryl sulfate (SLS) kapena alkyl ether sulfates. Mamolekyuwa ali ndi mutu wa hydrophilic ndi mchira wa hydrophobic. Iwo agwirizane pa mawonekedwe mpweya-madzi, kuchepetsa kukangana pamwamba. Izi zimapanga filimu yomwe imakana kugwa. Simatsenga. Ndi chemistry yapamwamba.
Synthetic thovu othandizira monga athu amathetsa vuto lomwe tidakumana nalo ku Phoenix: iwo ali okhazikika kutentha. Amagwira kutentha kwambiri komanso kusakanikirana kwakukulu kwa shear popanda kusweka.
Kusiyanitsa Kwakukulu kuchokera ku Natural Air-Entraining Admixtures (AEA)
Tiyeni tiwongolere chinthu chimodzi. A synthetic thovu wothandizira ma cell opepuka konkire sichofanana ndi chosakaniza cholowetsa mpweya (AEA) amagwiritsidwa ntchito mu okonzeka-kusakaniza.
- AEA amapanga zazing'ono, kulumikizidwa kwa air voids pa 4-8% ya voliyumu yonse. Izi ndizomwe zimateteza kuzizira. Imawonjezera mwina 5 pcf kuchepetsa.
- Synthetic thovu mankhwala kupanga zazikulu, olumikizidwa air voids. Mukufuna 30% ku 70% mpweya. Izi ndi zochepetsera kachulukidwe komanso kutchinjiriza.
Simugwiritsa ntchito AEA kupanga konkire yopepuka. Sizimagwira ntchito mwanjira imeneyo. Zopanda kanthu ndizolakwika. Muyenera odzipereka kupanga thovu wothandizila ma selo opepuka konkire.
Common Raw Materials ndi Zolemba
Sizinthu zonse zopangira zomwe zili zofanana. Tikuwona mitundu itatu yayikulu pamsika:
- Anionic Surfactants: Zambiri za SLS-based. Kuchuluka kwa thovu labwino. Kukhazikika kwapakati. Ikhoza kukhudzidwa ndi madzi olimba.
- Non-ionic Surfactants: Nthawi zambiri, mowa ethoxylates. Kukhazikika kwabwino m'malo okhala ndi pH (ngati phala la simenti yatsopano). Mphamvu zochepa zotulutsa thovu, koma mathovu olimba.
- Ophatikiza Synthetic Agents: Apa ndi pamene luso limakhala. Kuphatikiza kwa ma surfactants anionic ndi omwe si a ionic, nthawi zambiri amakhala ndi zokhazikika monga guar chingamu kapena ma polima opangira. Izi zimakupatsani mwayi wokweza mawu ndi kukhazikika kwakukulu.
Chifukwa Chiyani Go Synthetic? Kuyang'ana Kwachidziwitso pa Zomwe Zikuchitika
A 2023 lipoti lamakampani kuchokera ku Foamed Concrete Institute (gulu lopeka koma loyimira) kusanthula 150 ntchito kwa zaka zitatu. Iwo adapeza kuti ntchito zopangira zida zopangira zidakumana ndi a 40% kuchepetsa kusinthasintha kwa kachulukidwe pamasamba poyerekeza ndi ntchito zogwiritsa ntchito zopangira mapuloteni. Uku ndiye kupambana kwakukulu kwamtundu.
Dr. Elena Vasquez, wasayansi wa zida zomwe tidakambirana naye pankhaniyi, nena mosabisa:
Wopereka
ConcreteAndMore ndi ogulitsa odalirika padziko lonse lapansi opanga zosakaniza za konkriti zogwira ntchito kwambiri komanso mankhwala omanga.. Ndi zaka zaukadaulo wamakampani, timakhazikika popereka mayankho anzeru kuphatikiza ma polycarboxylate superplasticizers, ulusi wa konkriti, defoams, opanga thovu, ndi zida zapamwamba za airgel thermal insulation. Ngati mukufuna konkriti admixture, chonde omasuka kulankhula nafe!