Post Date:19,Dec,2022

Superplasticizers inogona kuderedza huwandu hwemvura inoshandiswa pakusanganiswa kwekongiri neinenge 10%, kana kuwedzera zvakanyanya kuyerera kwekongiri. Kwekongiri yemazuva matatu, simba re 砼C30 rinogona kuwedzerwa ne 69 mpa, uye simba rekongiri pamazuva makumi maviri nemasere ezera rinowedzerwa kusvika pa87 mpa. Kazhinji kushandiswasuperplasticizerskunyanya polyalkyl aryl sulfonates uye melamine mvura inoderedza vamiririri.

Migumisiro yesuperplasticizers pamusoro pekuita kwekongiri zvinonyanya sezvinotevera:

1. Mukutaura kwezvinhu zvekongiri itsva yakasanganiswa. Kune iyo yekudzikisa mvura maitiro eiyo superplasticizer, saizi yemamorekuru uye yakasarudzika chimiro chemvura inodzikisa mumiriri inoshandiswa inofanirwawo kutariswa. Kubuda ropa kwemhepo yemvura inoderedza agent inobatwa nekusagadzikana kwepamusoro kwemushonga wemvura. Kunyanya kusimba kwepamusoro kunoderedzwa, kunowedzera kuoneka kwemhepo yekubuda ropa. Panyaya yenguva yekumisikidza kongiri, naphthalene uye melamine inogona kufambisira mberi iyo kongiri coagulation nguva, uye iyo sulfamate superplasticizer inogona kunonoka kumisa nguva. Kunyangwe iyo superplasticizer isingachinjiki kune akasiyana masimende, kushandiswa kwesuperplasticizers inogona kuderedza kuparadzaniswa uye kubuda ropa zviitiko. Kudonha kwekrete kunogona kuvandudzwa nekuwedzera kwe superplasticizer. Iyo chaiyo yekudonha nguva uye chiyero chinotemerwa zvakananga nemaparamendi akadai serudzi uye huwandu hwemvura yekudzikisa mumiririri inoshandiswa.

2. Mhedzisiro pakuoma kwezvinhu zvekrete. Simende inobatanidza superplasticizer inogona kuvandudza dhigirii re hydration. Iko kudzvanywa kwekongiri uye kubhenda simba kunovandudzwa.Superplasticizers zvakare kuderedza huwandu hwesimende nekushandura shrinkage kukosha kwekongiri. Nekudaro, shanduko yeiyo telescopic kukosha kazhinji haipfuure iyo yakajairwa kukosha kwe1X10-4.

3. Mhedzisiro pakusimba kwekongiri. Iyo yepamusoro-yepamusoro-inoshanda yekudzikisa mvura mumiririri zvinobudirira

inovandudza anti-freeze uye anti-thaw zvimiro zvekongiri nekuda kwehuwandu hwekudzikisa mvura uye kutsvaga huwandu hwemhepo yekubuda ropa. Uye yakanyanya-inoshanda yekudzikisa mvura inogona kunyatso kuvandudza kugona kwekongiri kuramba sulfuric acid corrosion. Ongororo dzakaratidza kuti kuramba sulfuric acid corrosion ye superplasticizer haina kuipa kupfuura iyo yekongiri isina chinhu.

4. Iyo anti-corrosion kudzivirira maitiro esimbi mbariro. Concrete ine yakanyanya-inoshanda mvura inoderedza inogona kubatana zvakanaka nemasimbi mbariro, uye kunamira kwesimbi-yakatwasuka simbi kune kongiri 7D inogona kuvandudzwa kubva 1.2MPA kusvika 8.5MPA. Iko kunamatira kwesimbi yakakotama kune kongiri 7D inogona kuwedzerwa kubva pa15MPA kusvika 27.5MPA. Iyo superplasticizer inogonawo kudzivirira zvinobudirira simbi mukongiri.