1. Kenyelletso le karohano ea samente / seretse se ikemetseng
Samente / seretse se ikemetseng ke mofuta o ka fanang ka sebaka sa fatše se bataletseng le se boreleli moo ho ka behoang ho qetela (joaloka k'hapete, fatše lehong, joalo-joalo).Litlhoko tsa eona tsa bohlokoa tsa ts'ebetso li kenyelletsa ho thatafala ka potlako le ho fokotseha ho fokolang.Ho na le litsamaiso tse fapaneng tsa fatše 'marakeng joalo ka samente, tse thehiloeng ho gypsum kapa metsoako ea tsona.Sehloohong sena re tla shebana le litsamaiso tse phallang tse nang le thepa ea boemo bo holimo.Flowable hydraulic ground (haeba e sebelisoa e le sekoahelo sa ho qetela, se bitsoa lisebelisoa tse ka holim'a metsi; haeba se sebelisoa e le sekhahla sa phetoho e bohareng, se bitsoa "cushion material" hangata se bitsoa: samente-based self-leveling. mokatong (ka holim'a bokaholimo) le mokato o itšebetsang oa samente (mosamo) ).
2. Sebopeho sa thepa ea lihlahisoa le karolelano e tloaelehileng
Samente / seretse se ikemetseng ke lisebelisoa tse entsoeng ka hydraulically tse entsoeng ka samente e le lisebelisoa tsa motheo 'me li kopantsoe haholo le lisebelisoa tse ling tse fetotsoeng.Leha liforomo tse fapaneng tse fumanehang hajoale li fapane ebile li fapane, empa ka kakaretso ke lisebelisoa
Ha o arohane le mefuta e thathamisitsoeng ka tlase, molao-motheo o batla o tšoana.Haholo-holo e entsoe ka likarolo tse tšeletseng tse latelang: (1) motsoako oa cementitious material, (2) mineral filler, (3) coagulation regulator, (4) rheology modifier, (5) component component, (6) motsoako oa metsi, tse latelang ke maemo a tloaelehileng a bahlahisi ba bang.
(1) Tsamaiso ea thepa e tsoakiloeng ea samente
30-40%
Samente e phahameng ea alumina
Tloaelehileng Portland Cement
a-hemihydrate gypsum / anhydrite
(2) Motlatsi oa liminerale
55-68%
Lehlabathe la quartz
khalsiamo carbonate phofo
(3) Coagulant regulant
~0.5%
Seta retarder - tartaric acid
Coagulant - lithium carbonate
(4) Mofetoleli oa thuto ea bolumeli
~0.5%
Superplasticizer-Metsi Reducer
Defoamer
stabilizer
(5) Ho matlafatsa likarolo
1-4%
phofshoana ea polima e ka qhaloang hape
(6) 20%-25%
metsi
3. Tlhahiso le tlhaloso ea ts'ebetso ea lisebelisoa
Samente / seretse se ikemetseng ke mokhoa o rarahaneng ka ho fetisisa oa seretse sa samente.Ka kakaretso e entsoe ka likarolo tse fetang 10, tse latelang ke mokhoa oa ho ipeha tlas'a samente (mosamo)
Mokato o ikemetseng oa samente (mosamo)
Lintho tse tala: OPC e tloaelehileng silicate samente 42.5R
Tekanyo ea litekanyetso: 28
Lintho tse tala: HAC625 High Alumina Cement CA-50
Tekanyo ea litekanyetso: 10
Lintho tse tala: Lehlabathe la Quartz (70-140mesh)
Karolelano ea litekanyetso: 41.11
Lintho tse tala: Calcium carbonate (500mesh)
Tekanyo ea litekanyetso: 16.2
Lintho tse tala: Hemihydrate Gypsum semi-hydrated gypsum
Tekanyo ea litekanyetso: 1
Lintho tse tala: Anhydrite anhydrite (anhydrite)
Tekanyo ea litekanyetso: 6
Lintho tse tala: Latex Powder AXILATTM HP8029
Tekanyo ea litekanyetso: 1.5
Lisebelisoa tse so ntlafatsoe:Cellulose EtherHPMC400
Tekanyo ea litekanyetso: 0.06
Lintho tse tala: Superplasticizer SMF10
Tekanyo ea litekanyetso: 0.6
Lintho tse tala: Defoamer defoamer AXILATTM DF 770 DD
Tekanyo ea litekanyetso: 0.2
Lintho tse tala: Tartaric Acid 200 mesh
Tekanyo ea litekanyetso: 0.18
Lintho tse tala: Lithium Carbonate 800 mesh
Tekanyo ea litekanyetso: 0.15
Lintho tse tala: Calcium Hydrate Slaked Lime
Tekanyo ea litekanyetso: 1
Lintho tse tala: Kakaretso
Tekanyo ea litekanyetso: 100
Ela hloko: Kaho e kaholimo ho 5°C.
1Sena ke hobane sebopeho sa lejoe la calcium vanadium se na le litšoaneleho tse tharo tse kholo, e leng (1) lebelo la popeho e potlakileng, (2) matla a ho tlama metsi a mangata, le (3) bokhoni ba ho tlatselletsa ho honyela, ho tsamaellanang ka botlalo le thepa ea macroscopic e ikemetseng. -leveling samente / seretse lokela ho fana ka Hlokahala.
(2) Ho hlophisoa ha likaroloana tsa samente / seretse sa ho ikemela ho hloka tšebeliso ea li-filler tse mahoashe (joalo ka lehlabathe la quartz) le li-filler tse ntle (joalo ka phofshoana ea calcium carbonate) hammoho ho fihlela phello e ntle ka ho fetisisa ea compactness.
(3) Khalsiamo sulfate e hlahisoang ka samente / seretse se ikemetseng ke -hemihydrate gypsum (-CaSO4•½H2O) kapa anhydrite (CaSO4);ba ka lokolla li-radicals tsa sulfate ka lebelo le lekaneng ntle le ho eketsa tšebeliso ea metsi.Potso e atisang ho botsoa ke hore na ke hobane'ng ha -hemihydrate gypsum (e nang le lik'hemik'hale tse tšoanang le -hemihydrate), e fumanehang habonolo le e theko e tlaase ho feta -hemihydrate, e ke keng ea sebelisoa.Empa bothata ke hore tekanyo e phahameng ea void ea -hemihydrate gypsum e tla eketsa haholo tšebeliso ea metsi, e leng ho tla lebisa ho fokotseha ha matla a seretse se thata.
(4) Redispersible phofo ea rabara ke karolo ea bohlokoa ea samente / seretse se ikemetseng.E ka ntlafatsa mokelikeli, ho hanyetsa ho khopama holim'a metsi, matla a ho hula le matla a flexural.Ho phaella moo, e fokotsa modulus ea elasticity, kahoo e fokotsa khatello ea kelello ea ka hare ea tsamaiso.Li-powders tsa rabara tse qhaqhoang li tlameha ho khona ho etsa lifilimi tse matla tsa polymer.Lihlahisoa tse phahameng tsa samente / seretse se ikemetseng li na le phofo ea rabara e ka fihlang ho 8%, 'me haholo-holo ke samente ea aluminium e phahameng.Sehlahisoa sena se tiisa ho thatafala ka potlako le matla a pele a pele ka mor'a lihora tse 24, kahoo se finyella litlhoko tsa mosebetsi oa kaho oa letsatsi le hlahlamang, joalo ka mesebetsi ea ho nchafatsa.
(5) Samente / seretse se ikemetseng se hloka ho beha li-accelerator (tse kang lithium carbonate) ho finyella matla a ho beha samente pele, le li-retarders (tse kang tartaric acid) ho fokotsa lebelo la ho beha gypsum.
(6) Superplasticizer (polycarboxylate superplasticizer) e sebetsa e le sesebelisoa sa ho fokotsa metsi ka samente / seretse se ikemetseng 'me kahoo se fana ka ts'ebetso ea ho phalla le ho lekana.
(7) The defoamer e ke ke ea fokotsa feela moea oa moea le ho ntlafatsa matla a ho qetela, empa hape e fumana sebaka se lekaneng, se boreleli le se tiileng.
(8) Tekanyo e nyenyane ea stabilizer (e kang cellulose ether) e ka thibela ho arohana ha seretse le ho thehoa ha letlalo, kahoo ho baka tšusumetso e mpe holim'a thepa ea ho qetela ea holim'a metsi.Li-powders tsa rabara tse qhaqhoang hape li ntlafatsa thepa ea phallo le ho kenya letsoho ho matla.
4. Litlhoko tsa boleng ba sehlahisoa le theknoloji ea bohlokoa
4.1.Litlhoko tsa mantlha tsa samente / seretse sa ho ikemela
(1) E na le mokelikeli o motle, 'me e na le thepa e lekaneng ea ho lekana ha e le limilimithara tse 'maloa,'
The slurry e na le botsitso bo botle, e le hore e ka fokotsa liketsahalo tse mpe tse kang karohano, delamination, ho tsoa mali le ho phatloha.
'Me hoa hlokahala ho netefatsa nako e lekaneng ea tšebeliso, hangata e fetang metsotso e 40, e le ho tsamaisa mesebetsi ea kaho.
(2) Ho batalla ho molemo, 'me bokaholimo ha bo na mefokolo e totobetseng.
(3) E le thepa ea fatše, matla a eona a hatellang, ho hanyetsa ho roala, ho hanyetsa tšusumetso, ho hanyetsa metsi le mechine e meng ea 'mele
Tshebetso e lokela ho finyella litlhoko tsa sebaka se akaretsang sa mohaho oa ka hare.
(4) Ho tšoarella ho molemo.
(5) Kaho e bonolo, e potlakile, e boloka nako ebile e boloka mosebetsi.
4.2.Lintho tse ka sehloohong tsa tekheniki tsa samente / seretse sa ho ikemela
(1) Ho tsamaea
Fluidity ke sesupo sa bohlokoa se bonts'ang ts'ebetso ea samente / seretse sa ho ikemela.Ka kakaretso, mokelikeli o moholo ho feta 210-260mm.
(2) Ho tsitsa ha seretse
Lenane lena ke index e bonts'ang botsitso ba samente / seretse sa ho ikemela.Tšela slurry e tsoakiloeng holim'a poleiti ea khalase e behiloeng ka holimo, hlokomela ka mor'a metsotso e 20, ha hoa lokela ho ba le ho tsoa mali ho totobetseng, delamination, karohano, ho phatloha le liketsahalo tse ling.Lenane lena le na le tšusumetso e kholo holim'a boemo le ho tšoarella ha thepa ka mor'a ho bōptjoa.
(3) Matla a hatellang
E le thepa ea fatše, letšoao lena le tlameha ho lumellana le litlhaloso tsa kaho bakeng sa mekato ea samente, libaka tse tloaelehileng tsa seretse sa samente.
Matla a hatellang a mokatong oa pele a hlokahala hore a be ka holimo ho 15MPa, 'me matla a hatellang a bokaholimo ba konkreite ea samente a ka holimo ho 20MPa.
(4) Matla a feto-fetohang
Matla a feto-fetohang a samente / seretse se ikemetseng se lokela ho ba kholo ho feta 6Mpa.
(5) Coagulation nako
Bakeng sa nako ea ho ipehela samente / seretse, ka mor'a ho netefatsa hore slurry e tsosoa ka mokhoa o ts'oanang, etsa bonnete ba hore nako ea tšebeliso ea eona e feta metsotso ea 40, 'me ts'ebetso e ke ke ea ameha.
(6) Ho hanyetsa tšusumetso
Samente / seretse se ikemetseng se lokela ho khona ho mamella tšusumetso ea 'mele oa motho le lintho tse tsamaisoang ka sephethephethe se tloaelehileng,' me ho hanyetsa tšusumetso ea fatše ho feta kapa ho lekana le 4 joules.
(7) Apara khanyetso
Samente / seretse sa ho ikemela joalo ka thepa ea fatše e tlameha ho mamella sephethephethe se tloaelehileng.Ka lebaka la sekhahla sa eona se tšesaane sa ho leka-lekanya, ha motheo oa fatše o tiile, matla a eona a ho jara a haholo-holo holimo, eseng ka molumo.Ka hona, ho hanyetsa ha eona ho apara ho bohlokoa ho feta matla a khatello.
(8) Tlama matla a tsitsipano ho lera la motheo
Matla a tlamahano pakeng tsa samente / seretse sa ho itšehla thajana le lera la motheo le amana ka ho toba le hore na ho tla ba le sekoti le ho oa ka mor'a hore slurry e be thata, e nang le tšusumetso e kholo ho tšoarella ha thepa.Ts'ebetsong ea sebele ea kaho, phunya moemeli oa sebopeho sa fatše ho etsa hore e fihle boemong bo loketseng bakeng sa kaho ea thepa ea boipheliso.Matla a maqhama a matla a thepa ea ho itšebetsa ea samente ea lapeng hangata a kaholimo ho 0.8MPa.
(9) Ho hanyetsa lepetso
Khanyetso ea Crack ke sesupo sa bohlokoa sa samente / seretse sa ho ikemela, 'me boholo ba eona bo amana le hore na ho na le mapetsong, masoba le ho oa ka mor'a hore thepa ea ho ikemela e thatafale.Hore na u ka khona ho lekola ka nepo khanyetso ea crack ea thepa ea ho ipeha boemong bo amanang le hore na u ka hlahloba ka nepo katleho kapa ho hlōleha ha lihlahisoa tsa thepa ea ho itšebeletsa.
5. Kaho ea samente / seretse se ikemetseng
(1) Kalafo ea motheo
Hloekisa lera la motheo ho tlosa lerōle le phaphametseng, matheba a oli le lintho tse ling tse sa rateheng tse tlamang.Haeba ho na le likoti tse kholo karolong ea motheo, ho tlatsa le ho leka-lekanya phekolo hoa hlokahala.
(2) Phekolo ea holim'a metsi
Kenya lijase tse 2 tsa sehokelo sa fatše mokatong o hloekisitsoeng.
(3) Kaho e lekanyang
Bala palo ea lisebelisoa tse fapaneng ho ea ka palo ea lisebelisoa, karo-karolelano ea metsi-solid (kapa karo-karolelano ea metsi-solid) le sebaka sa kaho, hlohlelletsa ka ho lekana ka motsoako, tšela seretse se tsitsitsoeng fatše, 'me ka bonolo u hlakole litlhaka.
(4) Paballo
E ka bolokoa ho latela litlhoko tsa lisebelisoa tse fapaneng tsa ho ikemela.
Nako ea poso: Dec-06-2022