Cov hmoov tshauv calcium hmoov, hnyav calcium hmoov (los yog gypsum hmoov), thiab cellulose yog cov khoom tseem ceeb uas tsim cov hmoov putty.
Kev ua haujlwm ntawm cov hmoov tshauv calcium hmoov hauv putty yog txhawm rau txhim kho kev ua haujlwm ntawm cov khoom, suav nrog kev txhim kho lub zog, hardness, dej tsis kam ntawm cov khoom siv hmoov putty, thiab kev ua haujlwm ntawm kev sib tsoo thiab sib tsoo thaum tsim kho. Hnyav calcium hmoov yog siv los ua cov khoom siv los txo cov nqi tsim khoom, thiab cellulose plays lub luag haujlwm hauv kev khaws dej. , kev sib txuas lus thiab lwm yam haujlwm.
Hauv kev tsim cov hmoov putty, foaming yog ib qho teeb meem tshwm sim. Dab tsi ua rau nws?
Tshauv calcium hmoov (lub ntsiab tivthaiv yog calcium hydroxide, uas yog ib tug refined khoom ntawm txiv qaub), hnyav calcium hmoov (lub ntsiab tivthaiv yog calcium carbonate, uas yog calcium carbonate pob zeb hmoov ncaj qha rau hauv av los ntawm calcium carbonate pob zeb) feem ntau yuav tsis ua rau putty hmoov. tawg tom qab siv. npuas phenomenon.
ua rau blistering
Lub ntsiab yog vim li cas rau foaming ntawm putty hmoov yog raws li nram no:
1. Lub hauv paus txheej yog ntxhib heev nrog qhov me me. Thaum scraping, lub putty compresses cov huab cua nyob rau hauv lub qhov, thiab ces cov huab cua siab rebounds rau cov huab cua npuas.
2. Qhov kev hla dhau ib zaug yog tuab heev, thiab huab cua nyob rau hauv qhov pores ntawm lub putty tsis yog nyem tawm.
3. Lub hauv paus txheej yog qhuav dhau lawm thiab tus nqi nqus dej siab dhau lawm, uas yuav yooj yim ua rau huab cua npuas ntau hauv cov txheej txheej putty.
4. Cov xim pleev xim dej, qib siab ua vaj tse thiab lwm qhov chaw hauv paus nrog zoo airtightness yuav ua rau blistering.
5. Putty yog nquag ua npuas thaum lub sij hawm tsim kho kub.
6. Cov dej nqus ntawm cov khoom siv hauv paus yog tsawg dhau, uas ua rau cov txheeb ze dej tuav lub sij hawm ntawm putty yog ntev heev thaum scraped, yog li ntawd lub putty nyob twj ywm nyob rau hauv lub xeev ntawm slurry ntawm phab ntsa rau lub sij hawm ntev thiab tsis. qhuav, yog li ntawd cov huab cua npuas tsis yooj yim yuav tsum tau squeezed tawm los ntawm lub trowel, uas ua rau lub pinholes Pores yog vim li cas vim li cas muaj ntau cov pa npuas nyob rau sab saum toj ntawm lub scraped formwork tshaj nyob rau hauv lub phab ntsa hauv engineering. Kev nqus dej ntawm phab ntsa yog qhov loj, tab sis qhov nqus dej ntawm lub formwork sab saum toj yog qhov tsawg heev.
7. Lub viscosity ntawm cellulose siab dhau lawm.
Post lub sij hawm: Apr-19-2023