Ukutyabeka - lwenzeka kangangeenkulungwane eziphathekayo

Amaxesha amaninzi, phantsi ezahlukeneyo umsebenzi nendawo ophela usebenzisa izinto ezifana gypsum udaka. Nkqu nabantu kude ukulungiswa kunye noyilo, bazi eli gama. Kangangeenkulungwane ezininzi, obufanele ezibonakalayo ukuze ngokutsha kunye nokulungiswa kwezakhiwo.

Kakhulu womsizi gypsum udaka akuthethi ukudala umahluko phakathi ezintsha kunye endala iindonga ukutyabeka nakwiisilingi. Uye isakhiwo egqwesileyo kwaye ayithethi ukuzivula. Ukusebenza ukutyabeka iqala ngokuxuba ngamanzi. Nge efanayo kakuhle izinto lizele ngokugqibeleleyo neentanda kwaye kuthatha uhlobo iinkcukacha nokuba zincinane.

Ukutyabeka na isakhiwo aneentunja, ukuze zonke iindawo baphathwe nalo mbandela, kakuhle ekwaziyo iplanethi amaza omsindo, ngokwenjenjalo kuqinisekiswe ezisongwayo isandi egumbini. Umbala omhlophe le nto yenza kube lula ukuyisebenzisa ngaphandle bala ezongezelelweyo apho Ipeyinti kuyimfuneko efanelekileyo emhlophe.

Njani na lo nto yokwakha? Natural gypsum, ukuba isakhiwo crystalline, iphathwa kwiqondo lobushushu eliphezulu. Ngenxa yoko kukho ilahleko ¾ yamanzi equlethwe kuyo, baza basenza kwezimbiwa ngokwayo hemihydrate leyo, xa entle ingxengelelwe ngamanzi ifumana kwakhona isakhiwo ilitye yendalo. Ekubeni kungekho ngaphezulu kwe-1% ye-gypsum wongezwa kwezinye izinto eziphilayo kwezinto zendalo, oko nokusingqongileyo kukhuselekile ukuba abantu kunye nezilwanyana. Le yokwakha refractories, ngoko idlala indima ebalulekileyo ekukhuseleni izakhiwo emlilweni. Ukongeza zonke ezi zakhiwo, iyakwazi ukufunxa ukufuma kwemfuneko ndawo ngethuba ukuphakamisa yayo, lisibekele ukunika ukufuma kwinqanaba yayo.

Isichumisi kuvelisa iintlobo eziliqela. izinto zokwakha Common esetyenziselwa avelise gypsum eziphathekayo kunye gypsum neemveliso, iibhodi ukutyabeka, iiphaneli neepleyiti ulwahlulo, ukutyabeka gypsum-lime izisombululo. gypsum High mngundo avelise izinto zokwakha eqhelekileyo ngokuthi uphuculo ezikhethekileyo ngoomatshini nezikhundla ukuba linendawo ngakumbi kwaye ukusilwa. Ngokuba lenza sistucco kunye nezinye iimveliso zokuhombisa ukuba ngaphakathi kunye olungaphambili. Udaka ezahlulwe sisithuba ngexesha ayengawokuphilisa layo: 2-15 imizuzu - setting ukudla; 6-30 imizuzu - eqhelekileyo-setting; kwemizuzu engama-20 - slow-sentlalo.

Amandla le nto imiselwe amanqaku, ezahlukileyo ngaphakathi ngamandla alo compressive (F-2, 3, 4, 5, 6, 7, 15, 10, 19, 16, 22, 25). brand Isichumisi G-10, 16, 15 uthathwa ukuba ukwakha. Ezo zinto ke kakhulu ekhululekileyo ukungcola kunye namandla eliphezulu.

Xa kufuneka kukhunjulwe ukusebenza ngale nto yokuba ngokukhawuleza ngumkhenkce, ngoko musa nje apheke isixa esikhulu udaka olufakwe. Isixa yamanzi afunekayo ukuvelisa umxube guquki oluqhelekileyo, ongowona 50-80% (umsebenzi wokwakha) kunye 35-45% yokwenziwa kweemveliso ezahlukeneyo. amanzi kakhulu nga kuhlala pores umbandela lukhuni, nalapho ngumphunga. Ngenxa yoko, le porosity of ityatyekwe ziya kuba malunga nama-50-60%. Kubalulekile ukukhumbula ukuba amanzi ngaphantsi esetyenziselwa ukuxutywa of gypsum, ukuba luthe iya kuba imveliso yokugqibela okanye ukutyabeka, kwaye mkhulu uqinile yayo. Ukuphakamisa okanye ukuthoba iqondo kakubi kuchaphazela inqaba izinto eqina. Ukwandisa amandla gypsum udaka wambi wongezelela noko malunga 5% islaked.

Olusetyenziselwa ukunyanga-kuthiwa Polymer eveliswa gypsum, nto leyo ngokulula isicelo ukuya kumzimba isigulane aphole nge walisusa. Oku kulandela ngokupheleleyo yakhiwe kwaye zobude eliphezulu. Le nto iye porosity phezulu, ngoko ke ulusu yabantu iyaqhubeka ukuphefumla ngokukhululekileyo, nto leyo ethintela okuvela ukuluma. Ngamanye amaxesha ezi amabhandeji lisetyenziswa ukuze izigulane azikwazi ukwenza intshukumo ethile. Le nto akuyiphazamisi kunye neenkqubo zonyango kunye nokuphunyezwa uviwo X-ray.