Post Date:20, Chivabvu, 2024

7. Apo polycarboxylic acid admixture inoedzwa-yakasanganiswa (mukugadzirwa), apo chete chiyero chekutanga chinowanikwa, kutanga kwekushanda kwekongiri kuchagutsikana, asi kurasikirwa kwekrete kuchava kukuru;saka, panguva yekuedzwa-kusanganiswa (kugadzirwa), mari yacho inofanira kuwedzerwa zvakakodzera.Chete nekugadzirisa chipimo chemushonga (kureva, kusvika pachiyero chekuzadza) ndipo dambudziko rekurasika kukuru kwekudonha rinogona kugadziriswa.

8.Mushure mekudzikisa huwandu hwezvinhu zvecementitious, chiyero chemvura-samende chinofanira kuve chakanyatso kusimbiswa panguva yekugadzira.Kana iyo slump kurasikirwa yakakura, nzira chete ndeyekuwedzera huwandu hwekusanganiswa uye kuwedzera admixture kaviri.Usawedzera mvura kugadzirisa dambudziko, kana zvisina kudaro zvinozoita nyore kuderera kukuru kwesimba.

9. Polycarboxylate mvura-inoderedza mumiririri chigadzirwa chine chiyero chepamusoro chekudzikisa mvura uye kupararira kwakanyanya.Mukutonga kwekugadzira, iyo fluidity index (kuwedzera) kwekongiri inofanira kushandiswa kuyera kushanda kwekongiri.Slump inogona kushandiswa chete sereferensi kukosha.

10. Simba rekrete rinonyanya kugadziriswa nehuwandu hwemvura-binder.Polycarboxylate-inoderedza mvura mumiriri ine hunhu hwepamusoro-yekudzikisa mvura, iyo inogona nyore kuderedza kushandiswa kwemvura muyero yekugadzira musanganiswa, nekudaro kuzadzisa chinangwa chekudzikisa mvura-binder ratio uye kuderedza simba rekongiri.mutengo wakakwana.Sezvo zvigadzirwa zvichichinja zvakanyanya panguva yekugadzira pane panguva yekuyedzwa, kuti ushandise zvirinani kuita kwepolycarboxylate superplasticizer zvigadzirwa, zvinosanganiswa zvinofanirwa kugadziridzwa nenguva inoenderana nekukanganisa kwemamiriro ezvinhu akasvibira, ambient tembiricha shanduko, nezvimwe. kongiri panguva yekugadzira.Dosage.

11. Polycarboxylic acid inoderedza mvura haigoni kusanganiswa ne naphthalene-based-water-reducing agents.Paunenge uchishandisa polycarboxylic acid inoderedza mvura, musanganisi uye rori yekusanganisa iyo yakashandisa naphthalene-based-inodzora mvura inofanira kugezwa yakachena, zvikasadaro iyo polycarboxylic acid inoderedza mvura inogona kukuvara.Mvura inoderedza mvura inorasikirwa nekudzikisa kwayo mvura.

12. Polycarboxylate superplasticizer inofanira kudzivisa kushamwaridzana kwenguva refu nezvinhu zvesimbi.Sezvo zvigadzirwa zvepolycarboxylate zvinoderedza mvura zvemumiririri zvinowanzoita acidic, kusangana kwenguva refu nezvigadzirwa zvesimbi kunokonzeresa kuita zvishoma, izvo zvinogona kutosviba kana kusviba ruvara, zvichikonzera kudzikira kwekuita kwechigadzirwa.Inokurudzirwa kushandisa polyethylene mabhakiti epurasitiki kana simbi isina tsvina mabhakiti ekuchengetedza kuchengetedza kuita kugadzikana.