Lime-pozzolan usimende: kukhiqizwa futhi kusetshenziswa

clinker Pozzolan usimende impahla kuyindlela oluyimpuphu ne ngibopha izakhiwo, kusekelwe akhona izithasiselo ehlukahlukene. Isisindo uzuza isakhiwo plastic ku contact ngamanzi osemanzi phezu omiswe.

ukukhiqizwa

Ngezinye izitshalo ezikhethekile ezenziwe lime-pozzolan usimende, ukukhiqizwa kwanoma esidinga inqubo umjikelezo ogcwele. Ngokungafani kwalezi zakhiwo izimboni ukuthi babe gumbi ngoba ukugaya isetshenziswa ukugaya nokuhlanganisa omiswe izithasiselo. Ikhonza njengabameleli izinto amaminerali yemvelo - gliezh, diatomite, kungenzeka ukusebenzisa by-imikhiqizo zokukhiqiza amandla.

A sebuningini izinto ezengeziwe eziqukethwe izinto ezinjalo, njengoba usimende pozzolan. Ukwakheka kanye Ingxenye izithako nomthelela izici yokusebenza. Ukuze ushintshe isikhathi solidification ngesikhathi ngokugedla Gypsum sengezwe, lemali yalo kufanele kube khona abangaphezu kuka-3% we isisindo ingqikithi.

isakhiwo

ukugaya obuphelele, ngokuba indlela ethandwa kakhulu yokukhiqiza usimende lime-pozzolana, has isici esasenza ngesimo ukugaya clinker nge Gypsum nokumbiwa izakhi ezisebenzayo esigayweni ekhethekile multi. Ngaphambi kwalokhu kudla kuphezu kugaywa waziyisa edingekayo nomswakama ezingeni sigubhu omiswe. Kuyaphawuleka ukuthi okwandisa isilinganiso isabelo izithasiselo kunciphisa izindleko impahla.

Lime-pozzolana usimende solidification nqubo ebucayi okushisa. Ngezinye okushisa afinyelela ku-degree 14 ingxube ukuthi elinesimo solidification kancane. Inqubo cishe uyama uma izinga lokushisa ambient 5 degrees. Ngenxa yalokhu inkimbinkimbi kakhulu ukusetshenziswa kwezingxenye isizini kubanda evulekile.

Ngesikhathi esifanayo pozzolan usimende waziqonda okuningi ngokushesha at okushisa ziqhubeka zithuthuka ngisho kunokujwayelekile Portland usimende. Ukwandisa ukusebenza izingxenye ekhiqizwa, zingase ngaphansi okunye ukwelashwa ukushisa ezingeni lokushisa kule ezahlukene 80-90 degrees.

Ngebuhle nebubi

usimende Pozzolan, yiziphi izici uvumele ukwakha ngesikhathi solidification izinto ezifana calcium hydrosilicate hydroaluminate futhi engafani umphumela ezincane kunalawo kwakheka usimende ezivamile inikeza nenkani imithelela nosawoti namanzi okuphuza. Phakathi izinzuzo kuyafaneleka okulandelayo:

• pozzolan usimende libhekene kumiswa imifantu okumbalwa;
• ezingeni lelisetulu adhesion ukuze ukhonkolo ukuqinisa izakhi;
• iphatheke kalula;
• kakhulu kunenze nisondelane izici;
• Ingxube pozzolanic yakha nobungako obungaphezulu lakhiwe ngokhonkolo noma nosimende nge ukusetshenziswa efanayo impahla kanye nezinye izinhlobo Izingxube.

Kodwa kwakungeyona ngaphandle nemiphumela ethile engathandeki:

• isidingo sokusebenzisa ngaphezulu amanzi gauging;
• isitoreji isikhathi eside kunciphisa umsebenzi we izinto eziqukethwe.

Lokho Okufanele Ukwazi

Ngaphandle usimende ayenzi yimuphi umsebenzi wokwakha, kuyilapho Russia ungumholi ekukhiqizeni le nto. Noma yiziphi zayo ezihlukahlukene e chemical yabo isakhiwo kumiswa basonta isigaba silicates, lo okufakiwe elikhona Ukwakheka ngesimo Silicon dioxide. Njengoba isizathu kasimende clinker kuphuma lapho imiswe lime nobumba, labadubuli esidlule. umhlaba Diatomaceous izenzo njengenhlangano ukungcola konke ngokuhuheka. Kwakheka ngesikhathi kukhiqizwa futhi kusetshenziswa usimende uthuli ngu ephuza okubangela ukuthuthukiswa ukucinana kwemigudu yokuphefumula futhi ezimweni ezingavamile - pneumoconiosis, inqobo ngokweqile Silicon dioxide ungqimba, okuyindawo ehlanganisa usimende pozzolanic.

Silicosis kuyindlela okunzima pneumoconiosis futhi atholwe ngabantu abaningi ukuzedlula zonke phakathi ukuthuthukiswa esebenzayo engineering kanye nemboni yezimayini ngenxa yokuthi ukwakheka ukusebenza kuthinta inani elikhulu elisebenza ngebhethri uthuli. Lesi sifo sivame uma kakhulu abantu abahlobene ukucutshungulwa egwadle, ukuthuthukiswa imigudu, ukwakhiwa Ceramic futhi compounds refractory.

Ezinye izindlela zokukhiqiza

Pozzolan usimende, ogama izakhiwo futhi ancike inqubo, zingenziwa hhayi kuphela izitshalo kodwa futhi amasayithi ukwakhiwa ngokwabo besebenzisa izakhiwo ukugaya-omiswe. Basuke omisiwe Izithako amaminerali, kukhona phansi futhi ixubene ngobuningi, kungenzeka ukugaya kanyekanye izithako. Lokhu kunciphisa isiminyaminya sezimoto zithutha kuphela clinker nokumbiwa izakhi ngokwabo akhiqizwa endaweni ukwakhiwa. Phakathi izinzuzo ezinjalo inqubo Kumele kuqashelwe ukuthi kungenzeka ekushintsheni indlela yokwakheka asanda ezenziwe impahla nge fillers. Kodwa ukusetshenziswa zosizo ezikhethekile ulungisiswa kuphela amavolumu letinkhulu tekwakha.

Pozzolan usimende: ukusetshenziswa

Indaba kabanzi kunazo labawatfolile esifundvweni nobe ukudalwa ngokhonkolo njalo nakakhulu futhi eziphathekako komhlaba kanye nokusetshenziswa kwamanzi, okuyinto abambisane sulfate futhi amanzi aqabulayo. Kungasetshenziswa for eziwuketshezi kanye timphawu tesakhiwo, ezindaweni zazo libhekene nenkinga yezinga eliphezulu umswakama. Libuye ukusetshenziswa ezivamile ezakhiwe ubunjiniyela wokubacindezela sakhiwa vnutrimassivnogo ukhonkolo.

Sebenzisa izakhiwo zikakhonkolo eliwumhlaba kungagcini ngenxa ongaphakeme frost ukumelana izici, ngokukhethekile nge solidification mbandela emoyeni. Lokhu kusekelwe omiswe okusheshayo, okuyinto ukwazi ukuyeka inqubo solidification futhi kuholele ukuncipha okukhulu. Nokudalwa engathandeki izakhi isakhi pozzolan usimende, uma isetshenziswa ngaphansi incibilikiswa gqwa okokuqandisa, omiswe bese umswakama owanele.

amandla

Pozzolan usimende Ukwakheka, izakhiwo, izicelo ezihlinzeka amandla ehlukile izakhi prefabricated, okuhlala isikhathi eside, it kubangelwa inani calcium silicate kwakhiwa. Ukuze uthole impahla elinesimo ukwanda eside ngamandla ngenxa nokwehlisa isisindo Imininingwane ye-net usimende, yonke into e okokufaka izithako engeziwe. Kunonophisa lukhuni hydrate kwaphawula ukusabela oxide calcium Silica iyasebenza, okuholela ezibonakalayo amandla afana nezinye usimende grout. Ngakho-ke, ukuhlala isikhathi esijana endaweni olumanzi.

Amanzi funa

Pozzolan usimende, kusekelwe diatomite futhi Tripoli, libhekene anda amanzi ngokufunwa, okuholela isikhathi kancane ka solidification sokugcina. Ukuze wakhe owakho usimende slurry lemali edingekayo okusamanzi futhi kwandisa kuncike amaminerali izakhi asebenzayo. ukunciphisa Its ebonwe khona izithasiselo in indlela yokwakheka tuff futhi ithrekhi.

Ukwanda amanzi funa kuyinto engathandeki ngoba kunomthelela ukusetshenziswa enkulu yalolu hlobo kasimende kuqhathaniswa nezinye. Ukwengeza impukane umlotha ayishintshi obusamanzi adingekayo ukuxuba. Kungaba exutshwa kokubili mix ukhonkolo kanye uqobo usimende. Izinga zinto ziyancipha ngisho uma umlotha sizobuyiselwange ingxenye.