Lightweight Concrete Additives | High-Performance Foaming Agents for Cellular Concrete
Kufurira kwesamende dosage
Iyo yakasimba chikamu vhoriyamu yeyakajairwa portland simende inowedzera panguva ye hydration uye kuoma, nepo simende + hurongwa hwemvura hunoderera. Chechipiri, iyo simenti hydration process inoperekedzwa nekupisa mhedzisiro, izvo zvinoita kuti vhoriyamu yekutanga iwedzere uye kuderera kana kutonhora, zvichikonzera kuwedzera kwekuderera kunooneka. Besides, panewo chiitiko chekuzvishingisa kunokonzerwa nekuzvinyudza panguva ye simenti hydration.. Naizvozvo, kazhinji, kana mamwe mamiriro akafanana, huwandu hwesimende huchawedzera, uye shrinkage yefoam concrete ichawedzera maererano. Panguva imwe, simende ndechimwe chezvinhu zvakakosha kuti uve nechokwadi chekusimba, saka pane akakodzera siyana simende dosage.
Tiye kukanganisa kwemhando dzesimende
Haisi yese vhoriyamu yesimende isati yaoma uye mushure mekuoma inodzikira. Huwandu hwesimende yakawedzerwa haingodzikire chete asiwo inoputika isati yaoma uye mushure mekuoma. Naizvozvo, kana huwandu hwakakodzera hwesamende yekuwedzera hunoshandiswa, iyo yakazara shrinkage yekongiri ine furo inogona kubhadharwa kana kuderedzwa kusvika pamwero wakati. Zvisinei, simiti yekuwedzera haingokanganisa kushanduka kwevhoriyamu asi inobatawo nhevedzano yezvimwe zvinhu. Kana zvanyanya, ichaita kuti chimiro chekongiri yakaomeswa yefoam iparadzwe. Naizvozvo, rudzi uye muyero we simende yekuwedzera inofanira kutsanangurwa kuburikidza nekuedza.
Tiye kukanganisa kweaggregate
Huwandu hwekuyedza nehuinjiniya hunoratidza kuti kupera kwekongiri yesamende ndiyo idiki, iyo shrinkage yesamende paste yakakura, uye kupera kwekongiri yefuro ndiko kukurusa. Izvi zvinodaro nekuti kongiri yakajairwa inosanganiswa nehuwandu hukuru hwehukukutu hwehupamhi ine vhoriyamu isingaperi, uye huwandu hwese hwesement paste pasina aggregate inoderedzwa pamberi uye mushure mekuoma. Iyo yakanyanya shrinkage yefoam kongiri ndeye, kune rumwe rutivi, nekuti hamuna kuenzana mariri, uye kune rumwe rutivi, nokuti ine nhamba huru ye pores, mipunzi mizhinji yakazadzwa nemvura. Panguva yekushandiswa, sezvo mvura iri mu pores inoputika, chitarisiko chinoratidza kuderera kwevhoriyamu. Zvinogona kuonekwa kuti kuwedzerwa kweaggregate pasina mubvunzo ndeimwe yezviyero zvekuderedza kuderera kwekongiri yakapupuma., uye kongiri ine furo inogona chete kusanganiswa nechikamu cheaggregate yakanaka. Panguva imwe, nokuti muunganidzwa wacho une makemikari inert, kuwedzera zvakanyanya kuchaita kuti kuderera kukuru kwesimba rekongiri ine furo, uye nokudaro kuwanda kwayo kuchaganhurwa. Mushure meiyo foam kongiri kuwanda, mvura-simende ratio, uye mamwe maitiro parameter akatemerwa, musanganiswa wakanaka uchawedzera, uye huwandu hwesimende huchaderera. Naizvozvo, pane zvakare sarudzo yakakodzera yekuti iyo yakasanganiswa yakasanganiswa kana kwete.
Impact yemvura-simende ratio uye kuchengetedza system
Kurasika kwemwando uye kuomesa shrinkage bvunzo mhedzisiro yefoam kongiri pa60 ℃ inoratidza kuti pane yakajeka uye yepedyo kuwiriranisa pakati pekupunyuka kwemvura uye shrinkage shanduko yeakaomeswa foam kongiri.. Izvi zvinoratidza kuti kupukunyuka kwehunyoro kunokonzeresa shrinkage yekongiri yefuro, uye kana mwando wamira kubuda, kongiri yefuro inomira kuderera. Zvinoenderana neiyo classic simende chemistry theory, huwandu hwemvura inodiwa kuti ikwane simende hydration, ndizvo, theoretical mvura-simende reshiyo inofanira kuva 0.38. Mukupesana ne, the foamed concrete's molding water-cement ratio inowanzokwirira se 0.7 kana kunyange 0.8. Mvura yakawandisa icharamba iri mumapores ekongiri yefoam yakaoma, uye chikamu ichi chemvura chichazvidavirira pamusoro 1/2 yehuwandu hwemvura inoumba. Kana hunyoro hwehukama hwakatenderedza hwadzikira kana tembiricha yakakwira, mwando unopfava wobva wapukunyuka. Kunyanya mukutanga kwekuoma, chimiro chekongiri ine furo chichiri chisina kusimba. Kana isina kuchengetedzwa zvakanaka, mwando unorasika nyore, zvichiita kuti pave nekuderera kukuru uye kutsemuka kwepamusoro, kunetesa chimiro chemukati chemuviri wakaoma, uye kukonzeresa kunyudzwa kwemvura yakakwira kwekongiri yakaomeswa nefuro. Maererano neizvi, iyo yekutanga yemvura-simende reshiyo yekongiri ine furo inova chinhu chinodiwa chinokanganisa kuderera kwekongiri yakaomeswa furo.. Imwe yeakakosha matekinoroji ekugadzirira yakaderera-shrink foam kongiri ndeye kudzora yakaderera mvura-simende ratio.. Mushure mekudurura furo kongiri sampu ine density ye 1100 kg/m3 zve 24 maawa, iyo yakakamurwa kuita mabheji maviri emasamples ane firimu renylon repamusoro rakavharwa uye pasina nzvimbo yakabatwa. Iwo masampuli akaporeswa munzvimbo imwechete, kufanana nekushisa uye humidity. Dry shrinkage. Kuburikidza nekuenzanisa, zvinozivikanwa kuti shrinkage yemuenzaniso mushure mekuiswa chisimbiso chepamusoro idiki pane iyo yemuenzaniso ine yakavhurika nzvimbo., uye shrinkage inoita kunge yakagadzikana pazera re 5 mazuva. Mhedzisiro yakaratidza zvakare hukama hwepedyo pakati pekupunyuka kwemvura uye shrinkage uye kukosha kwekutanga kuchengetedza mvura kudzora furo kongiri shrinkage..
Matanho ehunyanzvi ekudzikisa kudonha uye kuputika kwekongiri ine furo
Maererano nekuongorora pamusoro apa, matanho ehunyanzvi ekudzikisa kudonha kwekongiri ine furo uye kudzivirira kutsemuka uye kunyumwa kwemvura kunonyanya kusanganisira zvinotevera zvinhu.:
(1) Nhamba yakakodzera ye simenti;
(2) Kuwedzera huwandu hwakakodzera hwesamende yekuwedzera;
(3) Low kuumba mvura-simende ratio;
(4) Gadzirisa hurongwa hwekuchengetedza uye simbisa kuchengetedza kwemvura nekukurumidza;
(5) kushandiswa kwemvura inodzivirira mvura (kusanganiswa kana kupfeka pamusoro);
(6) Wedzera barbed wire (mambure ekudzivirira kuparuka) kune insulation layer kudzivirira kuputika kwefoam concrete.
Nekugadzirisa kongiri musanganiswa reshiyo uye kudzora matanho ekuvaka, kuputika kwekutanga kwekongiri kunogona kuderedzwa.
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.