Emelana nokubanda enhlanzini yasezindaweni okufakiwe ukhonkolo: ezibekiweko lobuchwepheshe

Emelana nokubanda enhlanzini yasezindaweni okufakiwe ukhonkolo - inhlanganisela ezomile noma isixazululo amakhemikhali, izimpawu ukuphila eshalofini sasivumela eside. Injongo eyinhloko yale ibhekwa ukunikeza imisebenzi concreting ebusika.

New ihlanganiswe emelana nokubanda enhlanzini yasezindaweni izithasiselo, ngaphandle ukulungisa izinqubo setha amandla ukhonkolo nodaka alawule eziningi izakhiwo zalo rheological. Ngenxa yalokho, ukwehlisa isikhathi lokushisa ukwehla kulungiselelwa, kuyashesha inqubo lukhuni itshe usimende kanye namandla ayo inyuka ku-grade 2 banga.

ngezigaba

Emelana nokubanda enhlanzini yasezindaweni izithasiselo e isixazululo (ukhonkolo) ngesisekelo the chemical zingahlukaniswa ngezigaba ezintathu eziyinhloko:

• Emelana nokubanda enhlanzini yasezindaweni.
• Sulfate.
• Winter emelana nokubanda enhlanzini yasezindaweni izithasiselo booster.

Ake sixoxe ngazo ngokuningiliziwe.

emelana nokubanda enhlanzini yasezindaweni

Lokhu okufakiwe emelana nokubanda enhlanzini yasezindaweni ukhonkolo kunciphisa qhwa ketshezi, ngesivinini noma wavuma kuvimbela isixazululo kulungiselelwa. Kulesi emelana nokubanda enhlanzini yasezindaweni ayishintshi ijubane kumiswa izakhiwo.

sulfate

Iron sulphate, aluminium noma ezinye izinsimbi iyisici emelana nokubanda enhlanzini yasezindaweni, ukwengeza ezizohlinzeka kumiswa okusheshayo kakhulu isixazululo ezihlangene. I ikhambi futhi kahle ehlaselwe ukushisa esebenzayo, okuyinto kuhambisana ukuphendula hydration imikhiqizo ukhonkolo. Awukwazi ukusebenzisa i okufakiwe ukunciphisa qhwa, njengoba ngokuphelele elihlobene ne kabi compounds encibilikayo.

Winter emelana nokubanda enhlanzini yasezindaweni izithasiselo booster

Emelana nokubanda enhlanzini yasezindaweni izithasiselo e isixazululo (ukhonkolo) yalolu hlobo neqhaza ngezinga solubility of silicate usimende izingxenye kwakhiwa ngenxa double noma nosawoti isizinda nge imikhiqizo hydration. Iningi lawo abantu ngesikhathi esifanayo ukunciphisa kwezinga-qhwa.

zinhlobo

• Potash - a emelana nokubanda enhlanzini yasezindaweni okufakiwe oqinile ukhonkolo, esheshisa inqubo ukuqina. Ukuze uvimbele amandla nokuncishiswa umanyolo Kunconywa ukuhlanganisa Mash imvubelo sulfite, sodium tetraborate noma ezinye retarders. I lokuhlushwa ingxube kumele singeqi 30%.
• Sodium nitrite - umlilo enobungozi anobuthi emelana nokubanda enhlanzini yasezindaweni okufakiwe injalo. Endabeni ukusetshenziswa ngokuhlanganyela lignosulphonates ungakheka amagesi anobuthi. I Isikali kumele kunqunywe empirically futhi uhla 0,1-0,42 l / kg kasimende slurry at lokushisa kuma kusukela 0 kuya -25 ºC.
• Sodium formate kuyinto emelana nokubanda enhlanzini yasezindaweni namafutha. Isetshenziswa ukukhulisa plasticizing, amanzi-ekunciphiseni izakhiwo. Kunconywa ukusetshenziswa ngokuhlanganyela naphthalene lignosulfonate. Lokhu okufakiwe emelana nokubanda enhlanzini yasezindaweni ku eziphathekako ngokwenza ukugeleza usimende mass ine isilinganiso 2-6%.

Ukuze uhlele umsebenzi ukhonkolo ebusika, ngaphezu okungenhla, omunye ungakhetha ngesisekelo emelana nokubanda enhlanzini yasezindaweni okufakiwe sodium formate otshwaleni, urea, amanzi ammonia noma calcium chloride.

izinzuzo

• Plasticizing neliqinisayo ngomumo ukuxubana usimende.
• It ikuvumela ukuba enze imisebenzi ukhonkolo ebusika.
• Kwandisa nempilo ende ingxube ngesikhathi ukusebenza esakhiweni.
• Kuthuthukisa isixazululo frost sokugcina.
• Yehlisa zincipha ukusonteka.
• Yehlisa amanzi ngokwahlukana inqubo delamination.
• It kunciphisa tindleko ukufakwa.
• Eqeda ukugqwala of yangaphakathi anezikhala abalwazi kahle ulimi.

Ukusetshenziswa emelana nokubanda enhlanzini yasezindaweni izithasiselo ukhonkolo ngokuvamile kuholele Ukonga okukhulu.

amaphutha

• Ezinye izingxenye okufakiwe ezibhekwa anobuthi.
• Ukuze thembeke ukuqinisekisa izici ngamandla usimende ukusetshenziswa iyakhula.
• Ngezinye izikhathi uwela umthamo ngokomthetho brand ukhonkolo.

amanothi Isicelo

Emelana nokubanda enhlanzini yasezindaweni okufakiwe is busuka mix ukhonkolo kanye namanzi, okungcono yesithathu yokugcina ketshezi. Kuyinto engathandeki ukujova ejenti e ingxube eyomile. Ngemva okufakiwe iye busuka isixazululo, kubalulekile ukulinda isikhathi esithile ukuqinisekisa ukwabiwa kwakho iyunifomu.

Kubalulekile ukuba banamathele imiyalelo umsebenzi inhlangano ngesikhathi ebusika:

• Phakathi kweqhwa kumelwe enze zokukhosela ekhethekile.
• Amazinga Kunconywa yesixazululo kwayo kuleyo ndawo yokuhweba ye mixer: kusukela +15 ºC ukuze +25 ºC.
• Ukulungisa ingxube efiselekayo ukuthatha amanzi eshubile.
• Amalahle lokubolekwa ukuze kwenziwe ngqo ngaphambi kokusetshenziswa.

Ukuze uthole isixazululo ne ezidingekayo amandla izici, kutuswa ukuba sizivumelanise nezimfuneko for ukunakekelwa ukhonkolo ebusika, ngokuhambisana SNIP 03/03/01. Kuyinto efiselekayo ukwenza izenzo ekuzuzeni amandla hhayi ngaphansi kuka-20% design by ngesikhathi lwaluyophola ikhambi lokushisa lapho umthamo ukubala wawenziwa.

Emelana nokubanda enhlanzini yasezindaweni okufakiwe ukhonkolo: Ukucaciswa

Isikali

Isikali emelana nokubanda enhlanzini yasezindaweni okufakiwe kumele lakhetsiwe elibanga ngalinye esimweni esithile ngokuhlola ezimweni ezimbonini kanye laboratory. It incike okulandelayo:

• Imigomo ekunakekeleni ukhonkolo.
• I lokushisa ikhambi kwayo kuleyo ndawo yokuhweba ye semende.
• lokushisa Ambient.
• Ukwakheka Real futhi amakhemikhali-mineralogical yesixazululo kanye nokuthuthukiswa amandla.
• amandla usimende onophawu.

Ukuze isitoreji isikhathi eside, noma ukusebenzisa ivolumu izithasiselo esikhulu Kunconywa ukuthi ngezikhathi ezithile homogenizing isixazululo nge sibhebhezela noma sparging nge air onomfutho. Isikali kumele kwenziwe nge ukunemba ± 2%.

Emelana nokubanda enhlanzini yasezindaweni okufakiwe ukhonkolo ngezandla

Kuyaphawuleka ukuthi kuyadingeka ukuthenga ngomumo eyenziwe admixtures ukhonkolo isixazululo nganoma iyiphi esitolo ezikhethekile. Ababona njengoba ezibizayo, babe ukusetshenziswa ongaphakeme futhi ngaleyo ndlela uhlinzeke esikhathini ebusika, ukuba ngcono okukhulu kule izakhiwo yesixazululo ngemiphumela sakugcina ezimbi.

Lapho umsebenzi phambi ezincane kanye lokushisa air okungenani 10 ºC, indlela kungaba elilungile.

Nokho, kwenzeka ukuthi okufakiwe emelana nokubanda enhlanzini yasezindaweni ukhonkolo, enziwe ngezandla zakhe - lena VO. Kulesi simo, kufanele sinake chloride (usawoti). Chloride nosawoti kungaba kakhulu ukunciphisa qhwa yesixazululo, ukunciphisa isikhathi setting kanye nokunciphisa ukusetshenziswa usimende. Kodwa abanjalo emelana nokubanda enhlanzini yasezindaweni okufakiwe ukhonkolo (imibono kusukela ochwepheshe uqinisekise lesi) ingasetshenziswa izakhiwo unreinforced kuphela.

izinyathelo zokuqapha

Lapho ukusebenza into yalolu hlobo Kunconywa ukuba asebenzise amagilavu zokuzivikela.

Ngemva contact nge ingxenye enkulu yomzimba kuyadingeka ukuze ugeze off ngensipho namanzi. Hhayi avumele noma iluphi okufakiwe emelana nokubanda enhlanzini yasezindaweni esweni. Esimweni esinjalo kubalulekile ngokushesha uxubha kusho yenqwaba amanzi ukufuna usizo lodokotela.

Ngisemncane i okufakiwe ngokuhambisana nemithetho yendawo, it is nhlobo ukuze siyifeze zibe endle, amanzi ebusweni nomhlabathi.