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foaming

foaming aikace-aikace

Kumfa kankare, kuma aka sani da aircrete, foamed kankare, foamcrete, salon salula hur kankare ko rage yawa kankare, aka bayyana a matsayin wani ciminti tushen slurry, tare da wani m na 20% (da girma) kumfa entrained a cikin roba turmi. [1] Kamar yadda mafi yawa ba m tara da ake amfani da samar da kumfa kankare daidai lokaci za a kira turmi maimakon kankare. shi iya kira "foamed ciminti" kamar yadda kyau. The yawa na kumfa kankare yawanci dabam daga 400 kg / m³ zuwa 1600 kg / m³. The yawa da aka kullum sarrafawa da musanya cikakken ko ɓangare na lafiya tara da kumfa.

3-foaming

Manufacturing

Foamed kankare yawanci kunshi wani slurry na siminti da kuma tashi ash ko yashi, kuma ruwa, ko da yake wasu masu kaya bayar da shawarar m ciminti da ruwa tare da foaming wakili don sosai hur Mixes. Wannan slurry ne m gauraye da wani roba aerated kumfa a cikin wani kankare hadawa shuka. Kumfa aka halitta ta amfani da wani foaming wakili, gauraye da ruwa da kuma iska daga janareta. A foaming wakili amfani dole iya samar da iska kumfa da wani babban matakin da kwanciyar hankali, resistant ga jiki da kuma sinadaran tafiyar matakai na hadawa, ajiye da kuma hardening.

 

Foamed kankare cakuda iya zuba ko pumped cikin kyawon tsayuwa, ko kai tsaye a cikin tsarin abubuwa. Kumfa sa da slurry zuwa zartsi saboda da thixotropic hali na kumfa kumfa, kyale shi ya zama da sauƙi zuba a cikin zaba nau'i ko mould.The danko sosai abu na bukatar har zuwa 24 hours zuwa solidify (ko kamar yadda kadan ne sa'o'i biyu idan tururi warke tare da yanayin zafi har zuwa 70 ° C hanzarta aiwatar.), dangane da canji ciki har da na yanayi zafin jiki da kuma zafi. Da zarar ƙarfafa, da kafa amfanin iya saki daga mold.

Aikace-aikace

Foamed kankare za a iya samar da bushe yawa na 400 zuwa 1600 kg / m³, tare da 7-rana karfi na kimanin 1 zuwa 10 N / mm² bi da bi. Kumfa kankare ne wuta resistant, kuma ta thermal da kuma acoustical rufi Properties sa shi manufa domin da fadi da kewayon dalilai, daga insulating benaye da kuma rassanta, to žata cika. Shi ne kuma musamman da amfani ga wuriyar dawo.
A 'yan daga cikin aikace-aikace na kumfa kankare ne:
precast tubalan
precast bango abubuwa / bangarori
jefa-a-wuri / simintin-in-sa ganuwar
insulating diyya kwanciya
rufi kasa screeds
rufi rufin screeds
sunken rabo cika
wuriyar dawo
sub-tushe a cikin hanyõyi,
ciko daga m tubalan
prefabricated rufi allon

Kadarorin

Kumfa kankare ne m gini abu da sauki samar da hanya da cewa shi ne mun gwada da m idan aka kwatanta da autoclave aerated kankare. Kumfa kankare mahadi amfani gardama ash a cikin slurry mix ne mai rahusa har yanzu, kuma yana da ƙasa da muhalli tasiri. Kumfa kankare aka samar a cikin wani iri-iri yawa daga 200 kg / m³ zuwa 1,600 kg / m³ dangane da aikace-aikace. M yawa kayayyakin iya yanka a cikin daban-daban masu girma dabam. Yayin da samfurin an dauki wani nau'i na kankare (tare da iska kumfa maye gurbin tara), ta high thermal da kuma acoustical insulating halaye sa shi sosai daban-daban aikace-aikace fiye da na al'ada kankare.

Recent trends da kuma ci gaban

Har da shekaru goma da suka wuce, kumfa kankare an daukarsa a matsayin mai rauni, kuma ba m da high shrinkage halaye. Wannan shi ne saboda da m kumfa kumfa sa a kumfa kankare ciwon Properties m don samar da sosai low yawa (Kadan fiye da 300 kg / m³ bushe yawa), kazalika da kaya qazanta tsarin aikace-aikace. Saboda haka muhimmanci don tabbatar da cewa iska entrained cikin foamed kankare yana kunshe ne a cikin barga a lokaci guda sosai kankanin uniform kumfa cewa kasance m, kuma ya zama ruwan dare, kuma ba haka kara da permeability na ciminti manna tsakanin voids.

A ci gaba da roba-enzyme tushen Fitar kumfar jamiái, kumfa kwanciyar hankali inganta admixtures da kuma musamman kumfa sa, hadawa da kuma yin famfo kayan aiki ya inganta zaman lafiyar na kumfa kuma inganta kumfa kankare, sa shi yiwuwa a tsirar, kamar yadda haske kamar 75 kg / m³ density.The enzyme kunshi sosai aiki da sunadarai na biotechnological asalin kuma ba bisa kan mai sha'awar gina jiki hydrolysis.In 'yan shekarun nan foamed kankare an yi amfani da baje a hanyõyi, kasuwanci da gine-gine, bala'i fi gine-gine, makarantu, Apartments da kuma gidaje aukuwa a kasashe irin su Jamus, USA, Brazil, Singapore, India, da Malaysia, da Kuwait, Nigeria, Botswana, Mexico, Indonesiya, Libya, Saudi Arabia, Algeria, Iraki da kuma Misira.

 


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