Izithasiselo zikakhonkolo ezingasindi | Ama-ejenti Akhipha Amagwebu Asebenza Kakhulu Wokhonkolo Weselula
Yaqala Ophahleni ePhoenix
Ngiwukhumbula kahle umsebenzi. NgoJulayi ePhoenix. Iklayenti belifuna ukugcwalisa i-insulating engasindi ukuze kulungiswe uphahla olukhulu lwezentengiselwano. Ukucaciswa kubize ukuminyana okomile kwe 40 pcf. Mina neqembu lami sase sisebenzise i-ejenti yokukhipha amagwebu esekelwe kumaprotheni iminyaka. Kwasebenza, kodwa kwakungelula. Ngalolu suku, nezinga lokushisa le-ambient liphusha ku-115°F, igwebu le-protein lawa ngaphambi kokuba sithele ngisho negceke lokuqala. Kulapho sashintsha khona. Sasine i-ejenti ekhihliza amagwebu yeselula engasindi ukhonkolo elolini, njengesipele. Sihlanganise inqwaba entsha, sebenzisa ijeneretha yegwebu, futhi umehluko wawushesha. Amagwebu abambe. Ukuthulula kuhambe kahle. Ukuminyana kungene ngqo ku-spec. Ngalolo suku, Ngaba yikholwa.
Iyini Kahle I-ejenti Ekhihliza Amagwebu Yokwenziwa?
Buza abantu abahlanu esizeni somsebenzi lo mbuzo, futhi ungase uthole izimpendulo ezinhlanu ezahlukene. Masiyisuse.
Indlela Esebenza Ngayo
I-ejenti ekhihliza amagwebu iyi-surfactant ewuketshezi egxilile. Uyihlambulula ngayo amanzi, bese udlulisa isisombululo ngejeneretha ye-foam ngaphansi komoya ocindezelwe. Ijeneretha iphoqa uketshezi lube izigidi zamancanyana, amagwebu ezinzile. Sijova lelogwebu elakhiwe ngaphambili odongeni lukasimende (noma udaka) khona kanye ku-mixer. Igwebu lisusa i-aggregate esindayo. Umphumela? A engasindi, ukhonkolo ovikelayo ongaba nesisindo esincane njenge 20 pcf.
I-chemistry ilula. Zokwenziwa ama-ejenti ngokuvamile asekelwe ku-sodium lauryl sulfate (I-SLS) noma i-alkyl ether sulfate. Lawa ma-molecule anekhanda le-hydrophilic nomsila we-hydrophobic. Aqondana ku-interface ye-air-water, ukunciphisa ukungezwani kwendawo. Lokhu kudala ifilimu emelana nokuwa. Akuwona umlingo. I-surface chemistry.
Amagwebu okwenziwa amanxusa njengokwethu ukuxazulula inkinga esibhekane nayo ePhoenix: azinzile ngokushisa. Baphatha amazinga okushisa aphezulu kanye nokuxuba okuphezulu kwe-shear ngaphandle kokuphuka.
Umehluko Obalulekile Ezixubeni Ezihlanganisa Umoya Wemvelo (I-AEA)
Ake silungise into eyodwa. A i-ejenti ekhihliza amagwebu yeselula engasindi ukhonkolo akufani nengxube yokungenisa umoya (I-AEA) esetshenziswa ku- ready-mix.
- I-AEA yakha encane, ama-air voids anqanyuliwe 4-8% yevolumu ephelele. Lokhu okokuvikela iqhwa. Yengeza mhlawumbe 5 pcf yokunciphisa.
- Ama-synthetic amagwebu dala enkulu, ama-air voids axhunyiwe. Uphokophele 30% ku 70% okuqukethwe komoya. Lokhu okokunciphisa ukuminyana kanye nokwahlukanisa.
Awusebenzisi i-AEA ukwenza ukhonkolo ongasindi. Akusebenzi kanjalo nje. Isakhiwo esingenalutho asilungile. Udinga ozinikele i-ejenti ekhihliza amagwebu yokwenziwa kokhonkolo weselula ongasindi.
Izinto Ezivamile Zokungahluziwe kanye Nokwakheka
Akuwona wonke ama-synthetic agents alinganayo. Sibona izinhlobo ezintathu eziyinhloko emakethe:
- Ama-Anionic Surfactants: Ikakhulukazi isekelwe ku-SLS. Ivolumu yegwebu elihle. Ukuzinza okumaphakathi. Ingazwela emanzini aqinile.
- Ama-non-ionic Surfactants: Ngokujwayelekile i-alcohol ethoxylates. Ukuzinza okuhle kakhulu ezindaweni ezine-pH ephezulu (njengokunamathisela kukasimende okusha). Amandla akhihliza amagwebu amancane, kodwa amagwebu aqinile.
- Ama-Synthetic Agents Ahlanganisiwe: Yilapho ubuciko buhlala khona. Inhlanganisela yama-anionic nama-non-ionic surfactants, ngokuvamile ngeziqinisi ezifana ne-guar gum noma ama-polymer okwenziwa. Lokhu kukunikeza ivolumu ephezulu futhi ukuzinza okuphezulu.
Kungani Go Synthetic? Ukubheka Okusekelwe Ngedatha Kumathrendi
A 2023 umbiko wemboni ovela ku-Foamed Concrete Institute (indikimba eqanjiwe kodwa emele) kuhlaziywe 150 imisebenzi iminyaka emithathu. Bathola ukuthi imisebenzi esebenzisa ama-synthetic agents a 40% ukuncipha kokuhlukahluka kokuminyana esizeni uma kuqhathaniswa nemisebenzi esebenzisa ama-protein-based agents. Lokho kuwukuwina kwekhwalithi enkulu.
UDkt. Elena Vasquez, usosayensi wezinto ezisetshenziswayo esiye sabonana naye kulesi sihloko, alibeke ngembaba:
Umphakeli
I-ConcreteAndMore ingumphakeli othembekile womhlaba wonke wezixube zikakhonkolo ezisebenza kahle kakhulu namakhemikhali okwakha.. Ngeminyaka yobungcweti bemboni, sisebenza ngokukhethekile ekuhlinzekeni izixazululo ezintsha ezihlanganisa i-polycarboxylate superplasticizers, imicu kakhonkolo, ama-defoams, amagwebu, kanye nemikhiqizo ye-airgel ethuthukisiwe yokushisa ukushisa. Uma unentshisekelo ku-concrete admixture, sicela ukhululeke ukuxhumana nathi!