Usimende nosimende: Ukwakheka kanye womshini

Slurry usimende sisetshenziselwa izinto okuhlala kakhulu, ngokushesha usetha futhi Uqinisa emoyeni. Ukuqala sekushoneni kwalo at lokushisa 20 kwenzeka cishe izingxenye ezintathu kwezine ihora. Isixazululo okumele asetshenziswe kungakapheli ihora elilodwa emva nokulungiselela yayo, kusukela kungenjalo uphelelwa amandla awo. Kunezindlela ezihlukahlukene usimende - incike izingxenye zalo. I izixazululo olungiselelwe on ngesisekelo zabo ezahlukene amandla compressive.

Indlela yokwenza usimende nosimende

Ukulungisa slurry usimende kumelwe ukuhlunga esihlabathini usimende ngokusebenzisa ngesihlungo ngenhloso ububanzi imbobo 3 mm. Izithako yilezi alinganisiwe volumetric imithamo kanye okuxubile kuze homogenous, futhi uma kudingekile, sieved futhi ingxube dry ingezwe amanzi, kuze ukushuba oyifunayo.

Laying ipayipi ngenhla ophahleni senziwa ngaphezulu nosimende kuyinkimbinkimbi ehlanganisa yamathebhu futhi izingxenye ezimbili esibophezelayo: isihlabathi, usimende kanye lime putty. Kulokhu, udinga ukwengeza enye ingxenye usimende izingxenye ezintathu lime izingxenye 15 isihlabathi.

Slurry isetshenziswa ukulungiselela ukhonkolo ukuhlanganiswa. Wabeka fresh ikhava ukhonkolo chips noma Matting, amanzi ngobuningi ogelezayo nokumanzisa. Lokhu ikakhulukazi kwenziwa kulamalanga ekucala lasihlanu ngemuva obeka formwork, ngalezi zinhloso zisetshenziselwa polyethylene ifilimu ukuthi kudala nomphumela umusi.

Usimende nosimende: Ukwakheka

Usimende nosimende ukwakhiwa angathengwa noma wenza ngokuzimela ngokuxuba e okungu ezithile usimende nesihlabathi (kusuka 1 kuya ku-3, kuye ngokuthi ukwakheka up 1 kuya 6). Kumele kukhunjulwe ukuthi ngesandla ukukhiqiza isixazululo eyisicefe hhayi kuphela, kodwa cishe akunakwenzeka ngokulinganayo ukusabalalisa zonke izingxenye ngaphandle isipiliyoni ezifanele. Practical ukusebenzisa mixer (mechanical noma kagesi), okungase kokubili uthenge futhi saqasha, lathathwa abangane.

ethandwa kakhulu kuyinto slurry usimende, eyayisetshenziselwa idivayisi akhiwe. Lokhu kungasebenza ezimbili izinhlobo izixazululo - usimende kanye usimende-lime. Nge uhlobo lokuqala ukwakha umthwalo esindayo izindonga nezinye izakhi, kuyilapho Ukwakheka yesibili isetshenziswa sezinhlobo ezithile amaphepha (izindonga bamba kwangaphakathi), futhi unezela kuphela ingxenye encane usimende.

Uma nosimende isetshenziswa ebusika, kubalulekile ukusebenzisa emelana nokubanda enhlanzini yasezindaweni izithasiselo, okuyinto ungavumeli umnkantsha isixazululo. Noma kunjalo, ezingeni lokushisa ngezansi 20 degrees Celsius usimende mass kungcono hhayi ukwenza, njengoba lezi zingxenye azisebenzi. Ukusebenzisa isixazululo izithasiselo ehlukahlukene singanikelwa unenkululeko ezidingekayo futhi ukuhamba. Ukuze kwandiswe isixazululo ductility ochwepheshe imoto abavamile ungeze ngokuthulula nengxenye-litre into endaweni imitha cubic isisindo usimende. I Usawoti njengenhlangano izithasiselo emelana nokubanda enhlanzini yasezindaweni, naphezu izincomo eziningi, uthele akufanele kube ukugwema ukubonakala efflorescence.

Usimende nokhonkolo umkhiqizo ukushisa Izingxube ukumelana ezisetshenziswa ukwenziwa izakhiwo Monolithic foci ngomlilo evulekile, a firebox noma esithandweni wokwakha amabhulokhi. Ukwakha ilangabi izixazululo ukumelana refractory wasebenzisa izingxenye ezilandelayo kanye olinganise. Uma isixazululo izosetshenziselwa ukudala izilonda ngomlilo evulekile, thatha usimende uphawu akuyona ngaphansana 400. Ukuze ingxenye eyodwa ingezwe izingxenye ezimbili zamatshe ochotshoziwe, ehlanganisa ngezitini ezibomvu, izingxenye ezimbili asebenza ngebhethri isihlabathi noma emihle obomvu fireclay isitini, nokwesithathu kusuka isihlabathi esihle. Ukwakha firebox thatha usimende efanayo, ochotshoziwe netshe lokukhubekisa izitini firebricks isihlabathi abavamile ngezabelo 1: 2: 2: 0.33.