Lightweight Concrete Additives | High-Performance Foaming Agents for Cellular Concrete
Air, nitrogen, carbon dioxide, kana kuti okisijeni inounzwa mukongiri slurry, yobva yapushwa furo nemitoo yemuviri kana makemikari. Pakupedzisira, inorapwa uye inoitwa chigadzirwa chinobatika chine mamwe maburi emhepo akavharwa uye mamwe simba. Inonzi foam concrete.
Ndeupi musiyano pakati pefoam kongiri uye lightweight kongiri?
(1) Zvinhu zvakasiyana
Huremu huremu hwekubatanidza kushandiswa kwezviyererusa aggregates pachinzvimbo chejecha zvakajairika uye matombo akaunganidzwa.
Foam kongiri inoshandisa yakajairwa aggregates.
(2) Kuita kwakasiyana
Nekuti lightweight aggregate is lightweight, lightweight kongiri ine maitiro ekureruka, zvakanaka kupisa kwemafuta uye kudzivirira moto.
Foam kongiri inoshandisa nzira dzekupupuma kana kemikari yekupupa kuunza huwandu hukuru hwemabhuru emhepo mugwara kuitira kuti kongiri ive nekureruka kwehuwandu hwekureruka uye kudzikisa kupisa kwekupisa..
(3) Different bulk density
Huremu hwekongiri isingaremi ndeye 800-1400kg/m3. Simba uye kupisa conductivity kwekongiri isingaremi zvakakwirira kudarika foam concrete.
Foam concrete ine mabubbles, uye kuwanda kwehuwandu kazhinji kwakakodzera pasi pe600kg/m3.
Kuita sei furo kongiri?
Kupupa kwenyama kunoreva kupupa kwemuchina. Mhepo inounzwa panguva yekufambisa kuzere kana kuveura nemichina, uye denga rakaputirwa nemushonga wepamusoro kana kuti munyu wemushonga wemushonga wepamusoro-soro. Mukubuda furo kwemuviri, kudzivirira kugadzirwa kwezvinhu zvitsva kuburikidza nekuita kwemuviri, ukuru hwebubble dhayamita inogona kudzorwa nekumhanya kukuru. Mafuro anoumbwa nekupupa kwemuviri akafanana uye akagadzikana. Rudzi rweanoita furo rinotarisa kunaka kwekongiri ine furo.
Panguva ino, kupupuma kwemuviri kunonyanya kushandisa iyo compressor yemhepo semudziyo wekufuridzira mweya mujenya inopupuma, mushonga unopupuma unoitwa furo, uye slurry uye furo zvinosanganiswa kuti vawane foam concrete. Kupupa kwemuviri kunogona kugadzirisa kuita kwekongiri yefuro nekudzora huwandu hweanopupa. Iyo musimboti weiyo compressed mweya nzira inonyanya kushandisa kumanikidza kufefetera mweya mufuro mhinduro kuumba furo.
Chii chinonzi konkrete foaming agent?
Parizvino inowanzoshandiswa muviri foaming agents zvinosanganisira: resin sipo inopupuma agent, muriwo mapuroteni furo mumiririri, aluminium sulfonate foaming agent, mhuka yeprotein inoita furo mumiririri, hydrolyzed ropa gel furo agent, rosin asidhi sipo inopupuma Agent. Kubva pakuona kwemakemikari, zvekufuridza muviri zvinonyanya zvinosanganisira surfactants uye mapuroteni. Mapoka akawanda epolar mune surfactant chimiro ane akawanda hydrophilic mapoka, iyo yakasimba iyo hydrophilic athari uye zvirinani kuita kwebubble. Zvisinei, mvura yemvura iri pamusoro pefoam layer yakanyanyisa, izvo zvinoita kuti kugadzikana kwefuro kuwedzere. Panguva imwe, iyo surfactant inogona kupindirana nezvikamu zvesimende, kukanganisa hydration reaction, uye kuderedza kusimba kwekongiri ine furo. Protein-based foaming agents inogadzira mamorekuru madiki kuburikidza nekutsemuka kwepeptide bond uye kuwedzera hydrophobic mapoka kuti aumbe nzvimbo dzekupindirana.. Besides, hydrogen bonds inoumbwa pakati pemapoka akakosha muyuniti, kuitira kuti mhinduro iite foam liquid film ine simba rakakwirira. Mapuroteni emuriwo anoita furo anonyungudika mumvura, isinganyanyi kukanganiswa nekuoma kwemvura, non-chepfu, isina hwema, simba rekupupa furo rakasimba, uye dense uye creamy furo. Zvisinei, kugadzikana kweiyo furo agent chigadzirwa haina simba, uye nguva yekudzikamisa furo ipfupi, izvo zvisingakwanisi kuwana kushandiswa kukuru. Mhuka yeprotein inoita furo ine hunhu hwehuwandu hwekupupa, simba rakakwirira, kugadzikana kwakanakisa, uye mutengo wakaderera.
Muchidimbu, iyo nzira yekushandisa iyo inopupuma mumiriri kugadzira furo kongiri inonyanya kukodzera kongiri ine furo pamusoro 400 kg/m3. Furo rinoumbwa nekutenderera kwemuchina unopupuma furo kana kuzadzwa negasi, masero acho akafanana, radius idiki, uye kugadzikana kwakagadzikana. Mazhinji emasero masero akavharwa, kune mashoma akabatana maseru, uye kutorwa kwemvura kwakadzikira.
Cie-China.org ndiyo inotungamira furo kongiri yekuwedzera inopa inopa kongiri inopupuma mumiriri, superplasticizer,foam kongiri simba rekusimudzira kune lightweight kongiri, CLC inovhara. Kana uri kutsvaga foaming-agent, ndapota inzwa wakasununguka taura nesu.