Isishwankathelo seCompound yokuZilinganisa

Iikhompawundi zokuzilinganisa, izixhobo ezibalulekileyo kubunjineli bomgangatho wolwakhiwo lwangoku, zenziwe ngokwesamente yasePortland, iiaggregates ezintle, iipolima ezisebenzayo, kunye nezongezo ezikhethekileyo. Ipropathi yabo ekhethekileyo yokuzimela ivela kwi-slurry ephezulu-fluidity eyenziwe emva kokuxuba, enokuthi ngokuzenzekelayo inqanaba phantsi komxhuzulane ukudala iziseko ezigudileyo ezinobunzima obusuka kwi-3mm ukuya kwi-50mm.

Usetyenziso oluqhelekileyo lubandakanya izityalo zemizi-mveliso (umzekelo, imigangatho echanekileyo ephezulu kwiindibano zocweyo zokwenziwa kweemoto), iindawo zorhwebo (umzekelo, imigangatho emikhulu ekwazi ukumelana nokunxitywa kwiivenkile ezinkulu zamatsheyini), kunye neeprojekthi zokuhlala ezikumgangatho ophezulu (umz., ulwaleko olulinganayo lweenkqubo zokufudumeza eziphantsi).

Ulwakhiwo oluluncedo

Xa kuthelekiswa neenkqubo zokulinganisa udaka lwemveli, iikhompawundi zokuzilinganisa ngokwazo zonyusa ukusebenza kakuhle kolwakhiwo ngama-40% -60%. Inqaku labo lokunyanga ngokukhawuleza linciphisa kakhulu ixesha leprojekthi, libenza balungele "ukwakhiwa kwasebusuku-ukuhanjiswa kosuku olulandelayo" kwiiprojekthi zokuhlaziya.

Kutheni usebenzisa i-HPMC kwiNdawo yokuZilinganisa? Unjani uMsebenzi?

a. Umgaqo wokugcinwa kwamanzi

Iimolekyuli ze-HPMC zibhengeza amanzi ngeebhondi ze-hydrogen, zenza uthungelwano olumacala-ntathu okwandisa ukugcinwa kwamanzi eludaka ukuya kuma-90% (xa kuthelekiswa ne-75% ngaphandle kwe-HPMC). Kwiindawo eziphezulu zokushisa (> 30 ° C), ukukhetha i-HPMC kunye neqondo lokushisa kwe-gelation ≥65 ° C ukulibazisa ukukhuphuka kwamanzi, ukuthintela ukulahlekelwa kwamandla ngenxa yokungonelanga kwe-cement hydration.

b. UPhuculo lwePropati yeRheological

• Ulawulo lokuqukuqela: I-HPMC ye-Low-viscosity (umzekelo, i-400Mpas) inciphisa uxinzelelo lwesivuno, ukuphumeza amaxabiso okuqala okuhamba kwe-180-220mm kwi-thin-layer self-leveling (3-5mm); iintlobo ze-viscosity ephezulu (umzekelo, i-15000Mpas) yokwandisa i-thixotropy, ukuthintela ukuchithwa kwentlenga kulwakhiwo olungqingqwa (10-50mm) ukuqinisekisa ukuxinana okufanayo.

• Isiphumo seSynergistic: Xa idityaniswe ne-polycarboxylate yokunciphisa amanzi, i-HPMC inqanda ulwahlulo. Kwi-0.3% yokunciphisa amanzi kunye ne-0.12% ye-HPMC, i-30-minute-minutes flow loss ≤10%, ukuhlangabezana neemfuno zokuhamba ezixhomekeke kwixesha lokuzilinganisa.

c. Ukucutheka kunye nokuNqanda ukuKhatywa

Ngokulibazisa i-cement hydration (ukwandisa ixesha lokuqala lokumisela ngemizuzu eyi-15-30), i-HPMC inciphisa uxinzelelo lokunciphisa kwangaphambili ngaphezu kwe-30%.Ekomiseni iimvavanyo zokuncipha, i-mortars kunye ne-HPMC ibonisa izinga le-28-day shrinkage ye-0.018%, iphantsi kakhulu kune-0.035% yeesampuli ezingezizo ze-HPMC, ngokufanelekileyo ukunciphisa i-micro-cracking.

Ungayikhetha njani i-HPMC efanelekileyo ukuze utshatise iMicimbi yoLwakhiwo lweNdawo yokuSelf-Leveling?

I-HPMC ye-Industrial-grade zihlelwa yi-viscosity yesisombululo se-2% samanzi kwi-viscosity ephantsi ( 30000Mpas) iintlobo, ukulungiselela iimfuno ezahlukeneyo zokwakha.

Iimetriki eziphambilikuLwakhiwo olwahlukileyoImeko

Umzekelo woKuqulunqa (Ukuzilinganisela kwiGypsum-Based Self):Ukubunjwa kwesiseko: α-hemihydrate gypsum 60%, calcium carbonate 30%, isanti ye-quartz (80-120 mesh) 10%; Izongezo: I-HPMC (20000mPa·s, 0.18%), i-retarder (i-tartaric acid, i-0.05%), isinciphisi samanzi (i-melamine-based, i-0.3%.(Le yenzelwe ireferensi yakho kuphela) 

Ukuqukumbela

Njengesongezo esisebenzayo kwiikhompawundi zokuzilinganisa,HPMCichaphazela ukusebenza kwezixhobo kulo lonke ixesha lokulungiselela, ulwakhiwo, kunye nobomi benkonzo. Ngokunyuka kweemfuno zokuchaneka komgangatho wokwakha ushishino,HPMCitekhnoloji yokukhetha kunye nesicelo iya kusulungekiswa ngakumbi kwaye ikrelekrele.