Ndeipi mhedzisiro yehydroxypruppropyl methylcellose on cement dol?

Hydroxyprupropyl methylcellose inogona kuvandudza kupararira kuparadzaniswa kweiyo siment dol.

Hydroxypruppropyl methylcellose inzvimbo ine mvura-yemvura ine mvura yakawanda. Iyo inowanzowedzera kuwirirana kwemusanganiswa nekuwedzera iyo visikoka yemvura yekusanganisa. Inogona kuve yakanyungudutswa mumvura kuti iite viscous mhinduro yemvura. Icho hydrophilic polymer-zvinhu. Kuburikidza nekuedzwa, tinogona kuwana iyo iyo huwandu hweNaphthalene-kugona kwakanyanya-kugona kwepamhepo zvinowedzera, kubatanidzwa kwehukuru kuchadzikisa kuparadzaniswa kwekupararira kwevhu rakavhenganiswa. Nei zviitiko zvakadaro zvaizoitika? Izvi zvinodaro nekuti iyo naphthalene-yakavakirwa yakakwira-kugona kwemvura kuderedza inoderedza. Kana kuderedza kwemvura kunoshandiswa mumutumbi wetsiva, kuchave kwakadzivirirwa pamusoro pechikamu chechikamu chekugadzira pamusoro peiyo nzvimbo yetsika ine imwe chete. Uku kudzora kwemagetsi kunoita kuti smenent zvidimbu zviite chimiro chekusimara chakashambidzwa, uye mvura yakaputirwa muchimiro ichiburitswa, iyo ichaita kuti chikamu chekurasikirwa kwesimendi. Panguva imwecheteyo, yakawanikwa kuti nekuwedzera kweiyo mamiriro e hydroxyprusyl metrylcellose, kuparadzira kupokana kweiyo nyowani yakasanganiswa yekamendi yakaita zvirinani uye zvirinani.

Simba hunhu hwe kongiri:

Muzhinji Expressway Bridge Yoxtation Injini, Iyo Dhizaini Simba level ndeye c25. Zvinoenderana nemubvunzo wekutanga, huwandu hwesimu simende. Iyo kongiri fungidziro mumhepo ine avhareji simba re25.6mpa kwemazuva makumi maviri nemasere, uye pasi pemvura kongiri nehurefu hwekudonhedza 60mm kwemazuva makumi maviri nemasere. Iyo Simba Retio yekugadzira mumhepo ndeye 84.8%, uye mhedzisiro yacho inoshamisa kwazvo.

1. Kuwedzera kwehydroxypruppropyl methylcellose kune inooneka yekudzosera mari pane dhaka. Nekuwedzera kwezvinhu zvehydroxyprupyl methyl fiber, iyo nguva yekufamba-famba yakawedzerwa zvine mutsindo. Panyaya yeiyo yakafanana cellulose ether zvemukati, motesheni yakaumbwa pasi pemvura ichatora nguva yakareba kuti igadziswe kupfuura iyo yakaumbwa mumhepo. Ichi chimiro chinobatsira pasi pemvura concrete pumping.

2. Zviri mukati mehydroxypropyl methyl fiber uye iyo yemvura inodiwa yemota yakadzikira kutanga uye yakabva yanyatsowedzera.

3. Iyo nyowani yemuti yakasanganiswa neHPMC ine yakanaka yekubatanidza zvivakwa uye kanenge isina kubuda ropa.

4 Iyo puroyi yemutyairi inoratidza kuti simba retio yemvura-yakaumbwa kongiri uye mhepo yakaumbwa kongiri ndeye 84.8%, uye mhedzisiro yacho yakakosha.

5. Kubatanidzwa kwemvura kuderedza mumiririri kunowedzera dambudziko rekuwedzera kwemvura, asi dosage yaro inofanirwa kudzorwa zvine musoro, kana zvikasadaro kuparadzaniswa kwemvura pasi pevhu kwakashata kwesimbe.

6. Pane musiyano mudiki muchimiro pakati peiyo coment pastimen yakasanganiswa ne hydroxyprosyl methylcellose uye compaction yeiyo coment paste inodururwa mumvura uye yakadururwa mumhepo haina kunyanya kusiyana. Iyo fungidziro yakaumbwa pasi pemvura kwemazuva makumi maviri nemasere idiki crisp. Chikonzero chikuru ndechekuti kuwedzerwa kwemusangano Erthose ether kunoderedza kurasikirwa nekupararira kwesimendi paunenge uchidurura mumvura, asi zvakare inoderedza kuenzanisa kwetombo re coment. Muchirongwa, pasi pemamiriro ezvinhu ekuona mhedzisiro yekusaparadzaniswa pasi pemvura, iyo doisa ye cellulose ether inofanira kuderedzwa zvakanyanya sezvinobvira.