1. Nhanganyaya uye kupatsanurwa kwe-self-leveling simenti / dhaka
Self-leveling simende / dhaka imhando inogona kupa nzvimbo yakati sandara uye yakatsetseka yepasi iyo iyo yekupedzisira kupera (senge carpet, huni hwemapuranga, nezvimwewo) inogona kuiswa.Izvo zvakakosha zvekuita zvinodiwa zvinosanganisira kukurumidza kuomesa uye kuderera kuderera.Kune akasiyana masisitimu epasi pamusika akadai semendi-based, gypsum-based kana misanganiswa yavo.Muchikamu chino tichatarisa pane inoyerera masisitimu ane kuenzana zvivakwa.Flowable hydraulic ground (kana ikashandiswa seyekupedzisira yekuvharisa layer, inodaidzwa kuti pamusoro pezvinhu; kana ikashandiswa seyepakati shanduko layer, inonzi cushion material) inowanzonzi: sement-based self-leveling. pasi (pamusoro pedenga) uye simende-based self-leveling pasi (cushion layer) ).
2. Chigadzirwa chezvinyorwa kuumbwa uye chiyero chakajairika
Self-leveling simende / dhaka ndeye hydraulically yakaomeswa composite zvinhu zvakagadzirwa nesamende sechinhu chekutanga uye yakasanganiswa zvakanyanya nezvimwe zvakagadziridzwa zvinhu.Kunyangwe iwo akasiyana mafomula aripo parizvino akasiyana uye akasiyana, asi kazhinji zvinhu
Isingaparadzaniswi nemhando dzakanyorwa pazasi, musimboti wacho wakangofanana.Inonyanya kuumbwa nezvikamu zvitanhatu zvinotevera: (1) yakasanganiswa cementitious material, (2) mineral filler, (3) coagulation regulator, (4) rheology modifier, (5) inosimbisa chikamu, (6) kuumbwa kwemvura, zvinotevera zvakajairwa zviyero zvevamwe vagadziri.
(1) Mixed cementitious material system
30-40%
High alumina simenti
Ordinary Portland Cement
a-hemihydrate gypsum / anhydrite
(2) Mineral filler
55-68%
Jecha requartz
calcium carbonate powder
(3) Coagulant regulator
~0.5%
Seta retarder - tartaric acid
Coagulant - Lithium Carbonate
(4) Rheology modifier
~0.5%
Superplasticizer-Mvura Reducer
Defoamer
stabilizer
(5) Kusimbisa zvikamu
1-4%
redispersible polymer poda
(6) 20%-25%
mvura
3. Kugadzira uye tsanangudzo yekushanda kwezvinhu
Self-leveling simende/dhaka ndiyo yakanyanya kuomarara sement mortar maumbirwo.Kazhinji inoumbwa nezvinhu zvinopfuura gumi, inotevera ndiyo fomula yesamende-based self-leveling floor (cushion)
Cement-based self-leveling floor (cushion)
Raw Material: OPC yakajairika silicate simende 42.5R
Dosage Scale: 28
Raw Material: HAC625 High Alumina Cement CA-50
Dosage Scale: 10
Raw Material: Jecha reQuartz (70-140mesh)
Chiyero cheyero: 41.11
Raw Material: Calcium Carbonate (500mesh)
Chiyero cheDosage: 16.2
Raw Material: Hemihydrate Gypsum semi-hydrated gypsum
Dosage Scale: 1
Raw Material Raw zvinhu: Anhydrite anhydrite (anhydrite)
Dosage Scale: 6
Raw Material: Latex Powder AXILATTM HP8029
Dosage Chiyero: 1.5
Raw Material:Cellulose EtherHPMC400
Dosage Chiyero: 0.06
Raw Material: Superplasticizer SMF10
Dosage Chiyero: 0.6
Raw Material: Defoamer defoamer AXILATTM DF 770 DD
Dosage Chiyero: 0.2
Raw Material: Tartaric Acid 200 mesh
Dosage Chiyero: 0.18
Raw Material: Lithium Carbonate 800 mesh
Dosage Chiyero: 0.15
Raw Material: Calcium Hydrate Slaked Lime
Dosage Scale: 1
Raw Material: Zvose
Chiyero cheDosage: 100
Cherechedza: Kuvaka pamusoro pe5°C.
(1) Simende yaro yesimbi inowanzo umbwa neyakajairwa Portland simende (OPC), yakakwirira alumina simende (CAC) uye calcium sulfate, kuitira kuti ipe calcium, aruminiyamu nesarufa yakakwana kugadzira calcium vanadium dombo.Izvi zvinodaro nekuti kuumbwa kwe calcium vanadium dombo kune hunhu hutatu hunokosha, hunoti (1) kukurumidza kuumbwa kwekukurumidza, (2) yakakwirira yemvura inosunga simba, uye (3) kukwanisa kuwedzera shrinkage, iyo inonyatsoenderana ne macroscopic properties iyo pachayo. -leveling simende / dhaka inofanira kupa Inoda.
(2) Kuiswa kwemagiredhi ezvimedu zvesimende/dhaka rinoda kushandiswa kwemafirita akaomarara (sejecha requartz) uye mafirita akatsetseka (senge akatsetseka calcium carbonate poda) musanganiswa kuti uwane yakanakisa compactness mhedzisiro.
(3) Iyo calcium sulfate inogadzirwa mu-self-leveling simenti / dhaka ndeye -hemihydrate gypsum (-CaSO4•½H2O) kana anhydrite (CaSO4);vanogona kuburitsa sulfate radicals nekukurumidza zvakakwana pasina kuwedzera kushandiswa kwemvura.Mubvunzo unowanzobvunzwa ndewekuti nei -hemihydrate gypsum (iyo ine makemikari akafanana se -hemihydrate), iyo inowanikwa nyore nyore uye inodhura kudarika -hemihydrate, haigoni kushandiswa.Asi dambudziko nderekuti iyo yakakura void ratio ye -hemihydrate gypsum ichawedzera zvakanyanya kushandiswa kwemvura, izvo zvinozoita kuti kuderera kwesimba revhu rakaoma.
(4) Redispersible rubber poda ndicho chinhu chakakosha chekuzvimisa-leveling simende / dhaka.Inogona kuvandudza fluidity, pamusoro abrasion kuramba, kudhonza-kunze simba uye flexural simba.Mukuwedzera, inoderedza modulus ye elasticity, nokudaro kuderedza kushushikana kwemukati kwegadziriro.Redispersible rubber powders inofanirwa kukwanisa kugadzira akasimba epolymer mafirimu.Simende/dhaka zvigadzirwa zvepamusoro-soro zvinogoneka zvinosvika 8% redispersible rubber poda, uye zvakanyanya-high-alumina simende.Ichi chigadzirwa chinovimbisa kukurumidza kuomeswa uye kusimba kwekutanga kwekutanga mushure memaawa makumi maviri nemana, nekudaro kusangana nezvinodiwa zvezuva rinotevera rekuvaka basa, senge mabasa ekugadzirisa.
(5) Self-leveling simenti / dhaka inoda kuseta accelerators (yakadai se lithium carbonate) kuti iwane yekutanga simende yekumisikidza simba, uye retarders (senge tartaric acid) kunonoka kumisa kukurumidza kwegypsum.
(6) Superplasticizer (polycarboxylate superplasticizer) inoita seyekudzikisira mvura mukuzvimisikidza simende/dhaka uye nekudaro inopa kuyerera uye kuyera kuita.
(7) Iyo defoamer haigone chete kuderedza mhepo uye kugadzirisa simba rekupedzisira, asiwo kuwana yunifomu, yakatsetseka uye yakasimba pamusoro.
(8) Chikamu chiduku che stabilizer (yakadai se cellulose ether) inogona kudzivirira kupatsanurwa kwedhaka uye kuumbwa kweganda, nokudaro zvichiita kuti pave nemigumisiro yakaipa pamagumo ekupedzisira.Redispersible rubber powders inowedzera kunatsiridza kuyerera zvivakwa uye kubatsira mukusimba.
4. Chigadzirwa chemhando zvinodiwa uye yakakosha matekinoroji
4.1.Zvinodiwa zvekutanga zvekuzvimisa simende/dhaka
(1) Iine mvura yakanaka, uye ine yakanaka yekuenzanisa midziyo kana iri mashoma millimita ukobvu, uye
Iyo slurry ine kugadzikana kwakanaka, kuitira kuti igone kuderedza zvakaipa zviitiko sekupatsanurwa, delamination, kubuda ropa, uye kutumbuka.
Uye zvinodikanwa kuve nechokwadi chenguva yakakwana yekushandisa, kazhinji inodarika maminetsi makumi mana, kuitira kufambisa mabasa ekuvaka.
(2) Kupfava kuri nani, uye kumusoro hakuna hurema huri pachena.
(3) Sechinhu chepasi, simba rayo rekumanikidza, kupfeka kuramba, kupokana kwesimba, kuramba kwemvura uye mamwe mechanics emuviri
Kuita kunofanirwa kusangana nezvinodiwa zveyakajairwa yemukati yekuvaka ivhu.
(4) Kugara kuri nani.
(5) Kuvaka kuri nyore, nekukurumidza, kuchengetedza nguva uye kuchengetedza basa.
4.2.Huru tekinoroji zvimiro zve self-leveling simende/dhaka
(1) Kufamba
Fluidity chiratidzo chakakosha chinoratidza kuita kwega-leveling simende/dhaka.Kazhinji, iyo fluidity yakakura kupfuura 210-260mm.
(2) Slurry kugadzikana
Indekisi iyi indekisi inoratidza kugadzikana kwesemende/dhaka rekuzvimisa.Dururira slurry yakasanganiswa pandiro yegirazi yakaiswa yakatwasuka, tarisa mushure memaminitsi makumi maviri, hapafanirwe kuve nekubuda ropa kuri pachena, delamination, kupatsanurwa, kutumbuka uye zvimwe zviitiko.Iyi indekisi ine simba guru pamamiriro ekunze uye kusimba kwechinhu mushure mekuumbwa.
(3) Simba rinodzvinyirira
Sechinhu chepasi, chiratidzo ichi chinofanirwa kuenderana nezvinodiwa zvekuvaka zvesimende pasi, zvepamba zvakajairwa simende dhaka nzvimbo.
Simba rekumanikidza repasi rekutanga rinodiwa kuti rive pamusoro pe15MPa, uye kusimba kwesimba rekongiri resimende riri pamusoro pe20MPa.
(4) Kusimba
Iyo inoshanduka simba yeindasitiri yekuzvimiririra simende / dhaka inofanira kunge yakakura kupfuura 6Mpa.
(5) Coagulation nguva
Kwenguva yekumisikidza yekuzvimiririra simende / dhaka, mushure mekusimbisa kuti slurry inomutswa zvakaenzana, iva nechokwadi chekuti nguva yekushandiswa kwayo inopfuura maminitsi makumi mana, uye kushanda hakuzokanganiswe.
(6) Impact kuramba
Self-leveling simenti / dhaka inofanira kukwanisa kumira kukanganiswa kwemuviri wemunhu uye zvinhu zvinotakurwa mumigwagwa yakajairika, uye kupikisa kwepasi kwakakura kupfuura kana kuenzana ne4 joules.
(7) Pfeka kuramba
Self-leveling simende / dhaka sechinhu chepasi chepasi chinofanira kumira zvakajairwa pasi traffic.Nekuda kwehutete hwayo hwekuyera, kana hwaro hwepasi hwakasimba, simba rayo rekubereka rinonyanya pamusoro, kwete pahuwandu.Nokudaro, kupikisa kwayo kupfeka kwakakosha kudarika simba rekumanikidza.
(8) Bond tensile simba kune base layer
Simba rekubatanidza pakati pekuzvigadzika simenti / dhaka uye chigadziko chepasi chakanangana nekuti pachava negomba uye kudonha mushure mekunge slurry yaoma, iyo ine simba rakakura pakusimba kwechinhu.Muchiitiko chaicho chekuvaka, tsvaira mumiriri wepasi interface kuti iite kuti isvike pamamiriro ezvinhu akakodzera kuvakwa kwezvinhu zvekuzvimiririra.Iko kusungirira kusimba kwesimba remumba simende pasi-yega-leveling zvinhu zvinowanzopfuura 0.8MPa.
(9) Kuramba mutswe
Crack resistance chiratidzo chakakosha chekuzvigadzika simende / dhaka, uye saizi yaro ine hukama nekuti kune makatsemuka, maburi, uye kudonha mushure mekunge iyo yekuzvimiririra yaoma.Kunyangwe iwe uchigona kunyatso ongorora kutsemuka kwekupikiswa kwezvinhu zvekuzvimisa zvine hukama nekuti iwe unogona kunyatso ongorora budiriro kana kutadza kwezvigadzirwa zvekuzvimiririra.
5. Kuvakwa kwe-self-leveling simenti / dhaka
(1) Mabatirwo anokosha
Chenesa base layer kuti ubvise huruva inoyangarara, mafuta emafuta uye zvimwe zvisina kunaka zvinosungirirwa zvinhu.Kana paine makomba makuru muhwaro hwaro, kuzadza uye kuyera kurapwa kunodiwa.
(2) Kurapwa kwepamusoro
Isa 2 majasi epasi interface agent pane yakacheneswa base floor.
(3) Kuvaka nhanho
Verenga huwandu hwezvinhu zvakasiyana-siyana zvichienderana nehuwandu hwezvinhu, mvura-yakasimba reshiyo (kana mvura-yakasimba reshiyo) nenzvimbo yekuvakira, kurunga zvakaenzanirana nemusanganisi, dururira slurry yakabvongodzwa pasi, uye zvinyoro nyoro kupara mashanga.
(4) Kuchengetedza
Inogona kuchengetedzwa maererano nezvinodiwa zvezvakasiyana-siyana zvega-leveling zvinhu.
Nguva yekutumira: Zvita-06-2022