Ifomula ye-gypsum plaster

I-plastering plaster iya kuba yinto ephambili yokutyabeka eludongeni lwangaphakathi kwixesha elizayo

I-gypsum yokutyabeka esetyenziselwa iindonga zangaphakathi ineempawu zobunzima obulula, ukufunxa ukufuma, ukugquma kwesandi, kunye nokukhululeka okuqinileyo kokuphila. Izinto zokutyatyekwa kweGypsum ziya kuba yeyona nto iphambili yokutyatyekwa kodonga lwangaphakathi kwixesha elizayo.

I-hemihydrate gypsum esetyenziselwa ukufakwa eludongeni lwangaphakathi namhlanje ngokuqhelekileyo i-β-hemihydrate gypsum, kunye ne-hemihydrate desulfurized gypsum, okanye i-gypsum yendalo, okanye i-phosphogypsum ehlangabezana neemfuno zokusingqongileyo isetyenziswa ngokuqhelekileyo. Amandla omzimba we-gypsum ahluka ukusuka kwi-2.5 MPa ukuya kwi-10 MPa. Umgangatho we-hemihydrate gypsum oveliswa ngabavelisi be-gypsum uhluke kakhulu ngenxa yokwahlukana kwimvelaphi yezinto eziluhlaza kunye nenkqubo.

Uyilo lweFomula yeGypsum yokuPlastering kubuNjineli

Igypsum yokutyabeka esetyenziswa kubunjineli idla ngokuba nzima kunye nesanti yokutyabeka igypsum. Ngenxa yendawo enkulu yokwakha, ubukhulu bokulinganisa bungaphezulu kwe-1 cm. Abasebenzi bafuna ukulinganisa ngokukhawuleza, ngoko i-gypsum iyadingeka ukuba ibe ne-thixotropy elungileyo. Ukukhuhla okulungileyo, ukuziva kwesandla esilula, kulula ukuvela ekukhanyeni njalo njalo.

hlalutya:

1. Ukusebenza kakuhle komgangatho. Ukuhlelwa kwesanti kungcono, sebenzisa isanti ephakathi kunye nesanti ecolekileyo.

2. I-thixotropy elungileyo. Kufunwa ukuba ipropathi yokuzaliswa kwezinto eziphathekayo ingcono. Unokufumana ubunzima, kwaye unokufumana ubhityile.

3. Akukho kuphelelwa ngamandla. Sebenzisa i-amino acid retarder, njenge-Italian Plast Retard PE.

Ifomula ecetyiswayo yobunjineli bokutyabeka igypsum:

β-hemihydrate desulfurized gypsum: 250 kg (amandla egypsum malunga ne-3 MPa)

I-150-200 ye-mesh enzima ye-calcium: i-100 kg (i-calcium enzima ayilula ukuba ihle kakhulu)

1.18-0.6mm isanti: 400 kg (14 mesh-30 mesh)

0.6-0.075mm isanti: 250 kg (30 mesh-200 mesh)

I-HPMC-40,000: 1.5 kg (Kucetyiswa ukuba uhlambe i-HPMC kathathu, imveliso ecocekileyo, i-gypsum encinci, i-viscosity ephantsi, imvakalelo emihle yesandla, kunye nevolumu encinci yokungenisa umoya).

I-arhente ye-Rheological YQ-191/192: 0.5 kg (i-anti-sag, ukwandisa ukuzaliswa, ukuvakalelwa kwesandla esilula, ukugqiba okulungileyo).

I-Plast Retard PE: I-0.1 kg (i-dosage ayilungiswanga, ilungelelaniswe ngokwexesha le-coagulation, iprotheni, akukho kulahleka kwamandla).

Umzekelo wemathiriyeli ekrwada:

1.18-0.6 mm isanti

0.6-0.075mm isanti

β hemihydrate desulfurized gypsum (malunga nama-200 mesh)

Iimpawu zale fomula zezi: ukwakhiwa kakuhle, amandla okukhawuleza. Kulula ukuya kwinqanaba, ixabiso eliphantsi ngokwentelekiso, uzinzo oluhle, akukho lula ukuqhekeka. Ifanelekile kubunjineli.

Ukuthetha ngokusuka kumava

1. I-gypsum ibuyiselwe kwibhetshi nganye kufuneka ihlolwe ngefomula yokuvelisa ukuqinisekisa ukuba ixesha lokumisela alitshintshanga okanye lingaphakathi koluhlu olulawulekayo. Ngaphandle koko, ixesha lokumisela lide kakhulu kwaye kulula ukuqhekeka. Ukuba ixesha lifutshane kakhulu, ixesha lokwakha alanele. Ngokuqhelekileyo, ixesha lokuqala lokumisela loyilo yimizuzu engama-60, kwaye ixesha lokugqibela lokumisela i-gypsum lisondele kakhulu kwixesha lokuqala lokumisela.

2. Udaka lwesanti akufanele lube lukhulu kakhulu, kwaye umthamo wodaka kufuneka ulawulwe kwi-3%. Udaka oluninzi kulula ukuluqhekeza.

3. I-HPMC, i-viscosity ephantsi, umgangatho ophezulu uyacetyiswa. I-HPMC ihlanjwe amaxesha amathathu inetyuwa ephantsi, kwaye udaka lwegypsum luneqabaka encinci. Oku kuqina komphezulu kunye nokomelela kulungile

4. Xa udibanisa ipowder eyomileyo, ixesha lokuxuba akufanele libe lide kakhulu. Emva kokuba zonke izithako zondliwe, gxuma imizuzu emi-2. Ngomgubo owomileyo, ixesha elide lokuxuba, lingcono. Emva kwexesha elide, i-retarder nayo iya kulahleka. Ngumbandela wamava.

5. Ukuhlolwa kweesampuli zeemveliso. Kucetyiswa ukuba wenze isampuli kwaye uhlole iimveliso ezigqityiweyo ukusuka ekuqaleni, phakathi nasekupheleni kwembiza nganye. Ngale ndlela, uya kufumanisa ukuba ixesha lokumisela lihlukile, kwaye i-retarder kufuneka ilungiswe ngokufanelekileyo ngokweemfuno.