Uhlalutyo lwezizathu zokuqhekeka kweplasta yomaleko wegypsum
1. Uhlalutyo lwezizathu zokuplasta izinto zegypsum
a) Iplasta yesakhiwo engafanelekanga
I-gypsum yokwakha iqulethe umxholo ophezulu we-dihydrate gypsum, nto leyo ekhokelela ekuhlanganisweni ngokukhawuleza kwe-gypsum yokuplasta. Ukuze i-gypsum yokuplasta ibe nexesha elifanelekileyo lokuvula, kufuneka kongezwe i-retarder engaphezulu ukuze imeko ibe mandundu; i-gypsum enyibilikayo engamanzi ekwakheni i-gypsum AIII Umxholo ophezulu, ukwandiswa kwe-AIII kunamandla kune-gypsum ye-β-hemihydrate kwinqanaba lokugqibela, kwaye utshintsho lomthamo we-gypsum yokuplasta alulingani ngexesha lenkqubo yokucola, okubangela ukuqhekeka okukhulu; umxholo we-gypsum ye-β-hemihydrate enyangekayo ekwakheni i-gypsum uphantsi, kwaye nenani lilonke le-calcium sulfate liphantsi; I-gypsum yokwakha ifunyenwe kwi-gypsum yeekhemikhali, ubuncinci buncinci, kwaye kukho iipowders ezininzi ezingaphezulu kwe-400 mesh; ubungakanani be-particle ye-gypsum yokwakha bunye kwaye akukho gradation.
b) Izongezo ezingaphantsi komgangatho
Ayikho kuluhlu lwe-pH olusebenzayo kakhulu lwe-retarder; ukusebenza kwejeli ye-retarder kuphantsi, ubungakanani bokusetyenziswa bukhulu, amandla e-gypsum yokuplasta ancitshisiwe kakhulu, ixesha eliphakathi kwexesha lokuqala lokuseta kunye nexesha lokugqibela lokuseta lide; izinga lokugcina amanzi le-cellulose ether liphantsi, ukulahleka kwamanzi kuyakhawuleza; i-cellulose ether iyanyibilika kancinci, ayifanelekanga ukwakhiwa kokutshiza ngoomatshini.
Isisombululo:
a) Khetha i-gypsum yokwakha efanelekileyo nezinzileyo, ixesha lokuqala lokuseta lingaphezulu kwemizuzu emi-3, kwaye amandla e-flexural angaphezulu kwe-3MPa.
b) Khethai-cellulose etherenobukhulu obuncinci beesuntswana kunye nomthamo obalaseleyo wokugcina amanzi.
c) Khetha i-retarder engenampembelelo ingako kwisimo se-gypsum yokuplasta.
2. Uhlalutyo lwezizathu zabasebenzi bokwakha
a) Umkontrakta weprojekthi uqesha abaqhubi abangenamava okwakha kwaye akaqeqeshi ngoqeqesho olucwangcisiweyo. Abasebenzi bokwakha abakazazi iimpawu ezisisiseko kunye nezinto ezibalulekileyo zokwakha zokuplasta i-gypsum, kwaye abanakusebenza ngokwemigaqo yokwakha.
b) Ulawulo lobuchwephesha kunye nolawulo lomgangatho weyunithi yesivumelwano sobunjineli bubuthathaka, akukho basebenzi bolawulo kwindawo yokwakha, kwaye imisebenzi engathobeliyo yabasebenzi ayinakulungiswa ngexesha;
c) Uninzi lwemisebenzi yokuplasta kunye neyokuplasta ngegypsum ikwimo yomsebenzi wokucoca, igxile kubungakanani kwaye ingawunaki umgangatho.
Isisombululo:
a) Abakhi beprojekthi abatyabeka iiplasta baqinisa uqeqesho emsebenzini kwaye baqhuba utyhilelo lobuchwephesha ngaphambi kokuba kwakhiwe.
b) Ukuqinisa ulawulo lwendawo yokwakha.
3. Uhlalutyo lwezizathu zeplasta yokuplasta
a) Amandla okugqibela e-plastering gypsum aphantsi kwaye awakwazi ukumelana noxinzelelo lokuncitshiswa okubangelwa kukulahleka kwamanzi; amandla aphantsi e-plastering gypsum abangelwa zizinto ezikrwada ezingafanelekanga okanye ifomula engacwangciswanga.
b) Ukumelana nokuwa kwe-plastering gypsum akuchanekanga, kwaye i-plastering gypsum iqokelelana ezantsi, kwaye ubukhulu bukhulu, nto leyo ebangela ukuqhekeka okunqamlezileyo.
c) Ixesha lokuxuba i-plastering gypsum mortar lifutshane, nto leyo ebangela ukuxubana okungalinganiyo kwe-mortar, amandla aphantsi, ukuncitshiswa kunye nokwanda okungalinganiyo komaleko we-gypsum plastering.
d) I-plastering gypsum mortar ebisele ibekwe ekuqaleni ingasetyenziswa kwakhona emva kokufaka amanzi.
Isisombululo:
a) Sebenzisa i-gypsum yokuplasta efanelekileyo, ehlangabezana neemfuno ze-GB/T28627-2012.
b) Sebenzisa izixhobo zokuxuba ezifanayo ukuqinisekisa ukuba i-plastering gypsum kunye namanzi zixutywe ngokulinganayo.
c) Akuvumelekanga ukongeza amanzi kwi-mortar esele ilungisiwe ekuqaleni, uze uyisebenzise kwakhona
4. Uhlalutyo lwezizathu zezinto ezisisiseko
a) Okwangoku, kusetyenziswa izixhobo ezintsha zodonga ekubumbeni izakhiwo ezenziwe ngaphambili, kwaye i-coefficient yazo yokomisa ukoma inkulu kakhulu. Xa ubudala beebhloko bunganele, okanye umxholo wokufuma kweebhloko uphezulu kakhulu, njl.njl., emva kwexesha lokomisa, kuya kuvela imingxunya eludongeni ngenxa yokulahleka kwamanzi kunye nokuncipha, kwaye umaleko wokuplasta nawo uya kuqhekeka.
b) Indawo yokudibana phakathi kwelungu lekhonkrithi yesakhiwo sesakhelo kunye nezinto zodonga kulapho kudibana khona izinto ezimbini ezahlukeneyo, kwaye ii-coefficients zazo zokwandiswa komgca zahlukile. Xa ubushushu butshintsha, ukuguquka kwezinto ezimbini akuhambelani, kwaye kuya kuvela iintanda ezahlukeneyo. Iikholamu zodonga eziqhelekileyo Iintanda ezithe nkqo phakathi kweemitha kunye neentanda ezithe tye ezantsi kwentsimbi.
c) Sebenzisa i-aluminium formwork ukugalela ikhonkrithi kwindawo leyo. Umphezulu wekhonkrithi uthambile kwaye awubotshelelwanga kakuhle kumaleko we-plaster yokuplasta. Umaleko we-plaster yokuplasta ususwa lula kumaleko osisiseko, nto leyo ebangela ukuba kubekho imingxunya.
d) Izinto ezisisiseko kunye ne-plastering gypsum zinomahluko omkhulu kumanqanaba amandla, kwaye phantsi kwesenzo esidibeneyo sokuncitshiswa kokoma kunye notshintsho lobushushu, ukwanda kunye nokucutheka azihambelani, ingakumbi xa izinto ezisemgangathweni wodonga lokukhanya zinobunzima obuphantsi kunye namandla aphantsi, umaleko we-plastering gypsum uhlala uvelisa umkhenkce. Ukuqhekeka kokunwebeka, nokuba yindawo enkulu yokugquma. e) Umaleko wesiseko unesantya esiphezulu sokufunxa amanzi kunye nesantya sokufunxa amanzi ngokukhawuleza.
Isisombululo:
a) Isiseko sekhonkrithi esisandula ukugqunywa kufuneka some kangangeentsuku ezili-10 ehlotyeni kwaye sibe ngaphezu kweentsuku ezingama-20 ebusika xa umoya ungena kakuhle. Umphezulu uthambile kwaye isiseko sifunxa amanzi ngokukhawuleza. Isixhobo sokudibanisa kufuneka sifakwe;
b) Izinto zokuqinisa ezifana nelaphu legridi zisetyenziswa ekudibaneni kweendonga zezinto ezahlukeneyo
c) Izinto zodonga ezilula mazigcinwe zicocekile.
5. Uhlalutyo lwezizathu zenkqubo yokwakha
a) Umaleko osisiseko wome kakhulu ngaphandle kokumanzisa okanye ukusebenzisa i-interface agent. I-plastering gypsum idibana nomaleko osisiseko, ukufuma kwi-plastering gypsum kutsalwa ngokukhawuleza, amanzi ayalahleka, kwaye umthamo womaleko we-plastering gypsum uyancipha, nto leyo ebangela ukuqhekeka, okuchaphazela ukwanda kwamandla kunye nokunciphisa amandla okubopha.
b) Umgangatho wokwakhiwa kwesiseko awulunganga, kwaye umaleko we-gypsum wokuplasta wengingqi utyebile kakhulu. Ukuba i-plaster yokuplasta isetyenziswa ngexesha elinye, i-mortar iya kuwa ize yenze imifantu ethe tye.
c) I-hydroelectric slotting ayiphathwanga kakuhle. I-hydropower slots ayizaliswanga nge-caulking gypsum okanye ikhonkrithi yelitye elincinci ene-expansion agent, nto leyo ebangela ukuqhekeka, nto leyo ekhokelela ekuqhekekeni komaleko we-gypsum we-plastering.
d) Akukho nyango lukhethekileyo lweembambo zokubhoboza, kwaye umaleko we-gypsum wokuplasta owakhiwe kwindawo enkulu uyaqhekeka kwiimbambo zokubhoboza.
Isisombululo:
a) Sebenzisa i-arhente yojongano olusemgangathweni ophezulu ukunyanga umaleko osisiseko ngamandla amancinci kunye nokufunxwa kwamanzi ngokukhawuleza.
b) Ubukhulu bomaleko we-gypsum wokuplasta bukhulu kakhulu, budlula i-50mm, kwaye kufuneka bukrwelwe ngokwamanqanaba.
c) Ukuqhuba inkqubo yokwakha nokuqinisa ulawulo lomgangatho wendawo yokwakha.
6. Uhlalutyo lwezizathu zemeko yokwakha
a) Imozulu yomile kwaye ishushu.
b) Isantya somoya esiphezulu
c) Ekuqalekeni kwentwasahlobo nehlobo, ubushushu buphezulu kwaye ukufuma kuphantsi.
Isisombululo:
a) Ukwakhiwa akuvumelekanga xa kukho umoya onamandla wenqanaba lesihlanu okanye ngaphezulu, kwaye ukwakhiwa akuvumelekanga xa ubushushu obuphakathi bungaphezulu kwama-40 ℃.
b) Ekupheleni kwentwasahlobo nehlobo, lungisa ifomula yokuvelisa i-plastering gypsum.
Ixesha leposi: Epreli-25-2024