Musanganiswa mumwe chete une zvipingamupinyi pakuvandudza mashandiro e gypsum slurry. Kana mashandiro e gypsum mortar achizobudirira uye achizadzisa zvinodiwa zvakasiyana, makemikari, zvinhu zvinosanganisa, zvinozadza, nezvimwe zvinhu zvakasiyana-siyana zvinodiwa kuti zvisanganiswe uye zviwedzeredzwe nenzira yesainzi uye ine musoro.
01. Mutongi wekudzivirira ropa
Zvinodzora kuungana kwesimbi zvakakamurwa kuva zvinodzora nekukurumidzisa. Mumota yakasanganiswa negypsum dry-mixed, zvinodzora zvinoshandiswa pakugadzira zvinhu zvakagadzirwa neplaster yeparis, uye zvinokurumidzisa zvinodiwa pakugadzira zvinhu zvakagadzirwa negypsum isina mvura kana kushandisa dihydrate gypsum zvakananga.
02. Muchengeti wezvinhu
Kuwedzera retarder pazvinhu zvekuvaka zvakasanganiswa negypsum kunodzivirira maitiro emvura yegypsum yehemihydrate uye kunoita kuti nguva yekuiisa iwedzere. Kune zvakawanda zvinodiwa kuti plaster iwedzere mvura, kusanganisira kuumbwa kweplaster, tembiricha yezvinhu zveplaster pakugadzirira zvigadzirwa, kupfava kwezvikamu, nguva yekuiisa uye pH kukosha kwezvigadzirwa zvakagadzirwa, nezvimwewo. Chinhu chimwe nechimwe chine simba rakati pamhedzisiro yekuiisa, saka pane musiyano mukuru muhuwandu hweretarder mumamiriro akasiyana. Parizvino, retarder iri nani yegypsum muChina imodified protein (high protein) retarder, ine mabhenefiti emutengo wakaderera, nguva yekuiisa kwenguva refu, kurasikirwa nesimba kudiki, kugadzirwa kwakanaka kwechigadzirwa, uye nguva yakavhurika kwenguva refu. Huwandu hunoshandiswa mukugadzirira plaster yestucco yepasi kazhinji 0.06% kusvika 0.15%.
03. Chinhu chinovhara ropa
Kukurumidzisa nguva yekukurumidzisa slurry uye kuwedzera nguva yekukurumidzisa slurry ndeimwe yenzira dzekukurumidzisa physical coagulation. Makemikari anoshandiswa zvakanyanya muzvinhu zvekuvaka zve anhydrite powder anosanganisira potassium chloride, potassium silicate, sulfate nezvimwe zvinhu zvine acid. Chiyero chinowanzova 0.2% kusvika 0.4%.
04. Chinhu chinochengetedza mvura
Zvinhu zvekuvaka zveGypsum dry-mix hazviparadzanisike nezvinhu zvinochengeta mvura. Kuvandudza mwero wekuchengetedza mvura yegypsum product slurry ndiko kuona kuti mvura inogona kugara mugypsum slurry kwenguva yakareba, kuitira kuti mvura irambe yakasimba. Kuvandudza kuvaka kwezvinhu zvekuvaka zvegypsum powder, kuderedza nekudzivirira kupatsanurwa uye kubuda ropa kwegypsum slurry, kugadzirisa kudzika kweslurry, kuwedzera nguva yekuvhura, uye kugadzirisa matambudziko emhando yeinjiniya akadai sekutsemuka nekudzika kwevhu zvese hazviparadzanisike nezvinhu zvinochengetedza mvura. Kuti chinhu chinochengetedza mvura chakakodzera here zvinoenderana nekupararira kwacho, kunyunguduka nekukurumidza, kuumbwa, kugadzikana kwekupisa uye kukora, pakati pazvo chinonyanya kukosha kuchengetedza mvura.
Kune mhando ina dzezvinhu zvinochengetedza mvura:
①Cellulose mvura inochengetedza
Parizvino, inonyanya kushandiswa pamusika ihydroxypropyl methylcellulose, ichiteverwa nemethyl cellulose necarboxymethyl cellulose. Kushanda kwehydroxypropyl methylcellulose kuri nani pane kwemethylcellulose, uye kuchengetedza mvura kwezviviri kwakakwira kupfuura kwecarboxymethylcellulose, asi mhedzisiro yekukora uye mhedzisiro yekubatanidza yakaipa kupfuura yecarboxymethylcellulose. Muzvinhu zvekuvaka zvakasanganiswa negypsum dry-mixed, huwandu hwehydroxypropyl nemethyl cellulose hunowanzova 0.1% kusvika 0.3%, uye huwandu hwecarboxymethyl cellulose huri 0.5% kusvika 1.0%. Mienzaniso yakawanda yekushandiswa inoratidza kuti kushandiswa pamwe chete kwezviviri kuri nani.
② Chinhu chinochengetedza mvura yestarch
Chinhu chinochengetedza mvura yestarch chinoshandiswa zvakanyanya pakugadzira gypsum putty ne plaster yepamusoro, uye chinogona kutsiva chikamu kana zvese zvechinhu chinochengetedza mvura yecellulose. Kuwedzera chinhu chinochengetedza mvura chestarch pazvinhu zvekuvaka zve gypsum dry powder kunogona kuvandudza kushanda, kushanda, uye kugadzikana kweslurry. Zvinhu zvinochengetedza mvura zvestarch zvinosanganisira tapioca starch, pregelatinized starch, carboxymethyl starch, uye carboxypropyl starch. Huwandu hwechinhu chinochengetedza mvura chestarch chinowanzova 0.3% kusvika 1%. Kana huwandu hwacho hwakanyanya, hunokonzera kuonda kwezvigadzirwa zve gypsum munzvimbo ine hunyoro, izvo zvinokanganisa zvakananga kunaka kweprojekiti.
③ Chinonamira mvura neglue
Mamwe maglue anonamira anogonawo kuita basa riri nani rekuchengetedza mvura. Semuenzaniso, 17-88, 24-88 polyvinyl alcohol powder, Tianqing gum uye guar gum zvinoshandiswa mukugadzira zvinhu zvekuvaka zvakasanganiswa negypsum dry-mixed zvakaita segypsum, gypsum putty, uye gypsum insulation glue. Inogona kuderedza huwandu hwe cellulose water retaining agent. Kunyanya mu fast-bonding gypsum, inogona kutsiva zvachose cellulose ether water-retaining agent mune dzimwe nguva.
④ Zvinhu zvinochengetedza mvura zvisina makemikari
Kushandiswa kwekubatanidza zvimwe zvinhu zvinochengetedza mvura mumidziyo yekuvaka yakagadzirwa negypsum dry-mixed kunogona kuderedza huwandu hwezvimwe zvinhu zvinochengetedza mvura, kuderedza mitengo yezvigadzirwa, uye zvakare kuita basa rakati mukuvandudza kushanda uye kugadzirwa kwegypsum slurry. Zvinhu zvinochengetedza mvura zvisingawanzo shandiswa zvinosanganisira bentonite, kaolin, diatomaceous earth, zeolite powder, perlite powder, attapulgite clay, nezvimwewo.
05.Namira
Kushandiswa kwezvinonama muzvinhu zvekuvaka zvakasanganiswa negypsum dry-mixed kwakafanana nezvinochengetedza mvura uye zvinodzora mvura. Gypsum self-leveling mortar, bonded gypsum, caulking gypsum, uye thermal insulation gypsum glue zvese hazviparadzanisike kubva kune zvinonama.
▲ Upfu hwelatex hunonyungudika zvakare
Upfu hwelatex hunodzokororwa hunoshandiswa zvakanyanya mu gypsum self-leveling mortar, gypsum insulation compound, gypsum caulking putty, nezvimwewo. Kunyanya mu gypsum self-leveling mortar, inogona kuvandudza viscosity uye fluidity ye slurry, uye zvakare inoita basa guru mukuderedza delamination, kudzivirira kubuda ropa, uye kuvandudza kusimba kwe crack. Chiyero chinowanzova 1.2% kusvika 2.5%.
▲ Doro repolyvinyl rinonwiwa panguva imwe chete
Parizvino, instant polyvinyl alcohol inoshandiswa zvakanyanya pamusika i24-88 uye 17-88. Inowanzo shandiswa muzvigadzirwa zvakaita se bonding gypsum, gypsum putty, gypsum composite thermal insulation compound, uye plastering plaster. 0.4% kusvika 1.2%.
Guar gum, Tianqing gum, carboxymethyl cellulose, starch ether, nezvimwewo zvose zvinonamatira zvine mabasa akasiyana ekubatanidza muzvinhu zvekuvaka zvakasanganiswa negypsum dry-mixed.
06. Chinokora
Kukora kunonyanya kuitirwa kuvandudza kushanda nekudzikama kwe gypsum slurry, iyo yakafanana ne glues uye zvinhu zvinochengetedza mvura, asi kwete zvachose. Zvimwe zvigadzirwa zvekukora zvinoshanda mukukora, asi hazvina kunaka maererano nesimba rakabatana uye kuchengetedza mvura. Pakugadzira zvinhu zvekuvaka zve gypsum dry powder, basa guru rekusanganisa rinofanira kufungwa zvizere kuitira kuti zvishandise admixtures zviri nani uye zvine musoro. Zvigadzirwa zvekukora zvinowanzoshandiswa zvinosanganisira polyacrylamide, Tianqing gum, guar gum, carboxymethyl cellulose, nezvimwewo.
07. Mushonga wekufema
Mushonga wekufema, unozivikanwawo semushonga wefuro, unonyanya kushandiswa mukugadzira zvinhu zvekuvaka zvakasanganiswa negypsum zvakaita se gypsum insulation compound uye plaster plaster. Mushonga wekufema (mushonga wefuro) unobatsira kuvandudza kuvaka, kuramba kutsemuka, kuramba chando, kuderedza kubuda ropa nekupatsanurwa, uye chiyero chinowanzova 0.01% kusvika 0.02%.
08. Mushonga wekubvisa ganda
Defoamer inowanzo shandiswa mu gypsum self-leveling mortar uye gypsum caulking putty, izvo zvinogona kuvandudza huwandu, simba, kuramba mvura uye kubatana kwe slurry, uye chiyero chinowanzova 0.02% kusvika 0.04%.
09. Chinhu chinodzikisa mvura
Chinhu chinodzikisa mvura chinogona kuwedzera kuyerera kwe gypsum slurry uye simba re gypsum hardness body, uye chinowanzo shandiswa mu gypsum self-leveling mortar uye plaster plaster. Parizvino, zvinhu zvinodzikisa mvura zvinogadzirwa munyika zvinorongwa zvichienderana nekuyerera kwazvo uye simba razvo: zvinhu zvinodzikisa mvura zvinodzorwa ne polycarboxylate, zvinhu zvinodzikisa mvura zvinogadzirwa ne melamine, zvinhu zvinodzikisa mvura zvinogadzirwa ne tea-based high-efficiency, uye zvinhu zvinodzikisa mvura zvinogadzirwa ne lignosulfonate. Pakushandisa zvinhu zvinodzikisa mvura mu gypsum dry-mix building materials, pamusoro pekufunga nezvekushandiswa kwemvura nesimba rayo, kunofanirawo kutariswa nguva yekuiswa uye kurasikirwa kwemvura nezvinhu zvinogadzirwa ne gypsum nekufamba kwenguva.
10. Mushonga wekudzivirira mvura
Dambudziko guru rezvigadzirwa zvegypsum nderekusakwanisa kunyura mumvura. Nzvimbo dzine hunyoro hwakawanda dzine zvinodiwa zvakanyanya zvekusagona kunyura mumvura kubva mumota yakasanganiswa negypsum. Kazhinji, kusagona kunyura mumvura kubva mugypsum yakaoma kunovandudzwa nekuwedzera hydraulic admixtures. Kana mvura yakanyorova kana yakasviba, kuwedzera kwekunze kwe hydraulic admixtures kunogona kuita kuti softening coefficient ye gypsum yakaoma isvike kupfuura 0.7, kuitira kuti isvike pazvinodiwa zvesimba rechigadzirwa. Chemical admixtures inogonawo kushandiswa kuderedza kunyunguduka kwegypsum (ndiko kuti, kuwedzera softening coefficient), kuderedza adsorption yegypsum mumvura (ndiko kuti, kuderedza mwero wekunyudzwa kwemvura) uye kuderedza kuora kwe gypsum yakaoma (ndiko kuti, kupatsanurwa kwemvura). Gypsum waterproofing agents dzinosanganisira ammonium borate, sodium methyl silicone, silicone resin, emulsified paraffin wax, uye silicone emulsion waterproofing agent zvine mhedzisiro iri nani.
11. Chinhu chinoshanda chinosimudzira simba
Kushanda kweanhydrite dzechisikigo nedzemakemikari kunoita kuti pave nekunamira uye simba rekugadzira zvinhu zvekuvaka zvegypsum dry-mix. Activator yeacid inogona kukurumidzisa mwero wekutanga wemvura yegypsum isina mvura, kupfupisa nguva yekugadzika, uye kuvandudza simba rekutanga remuviri wakaomeswa wegypsum. Basic activator haina simba guru pahuwandu hwemvura yekutanga yegypsum isina mvura, asi inogona kuvandudza zvakanyanya simba rekupedzisira remuviri wakaomeswa wegypsum, uye inogona kuita chikamu chezvinhu zve hydraulic gelling mumuviri wakaomeswa wegypsum, zvichivandudza kudzivirira kwemvura kwemuviri wakaomeswa wegypsum. Mhedzisiro yekushandisa yeacid-base compound activator iri nani pane ye single acid kana basic activator. Acid stimulants dzinosanganisira potassium alum, sodium sulfate, potassium sulfate, nezvimwewo. Alkaline activators dzinosanganisira quicklime, simende, cement clinker, calcined dolomite, nezvimwewo.
12. Mafuta eThixotropic
Mafuta eThixotropic anoshandiswa mu gypsum inodziisa yega kana kuti plastering gypsum, izvo zvinogona kuderedza kusimba kwemvura ye gypsum mortar, kuwedzera nguva yekuvhurika, kudzivirira kugadzika nekugadzikana kwetsvina, kuitira kuti slurry iwane mafuta akanaka uye kushanda zvakanaka. Panguva imwe chete, chimiro chemuviri chakafanana, uye simba repamusoro payo rinowedzerwa.
Nguva yekutumira: Kubvumbi-20-2023