Post Date: 01 Nov, 2021

Concrete kusanganisa chiteshi mukugadzirira kongiri, haigone kuita pasina zvinhu zvitatu, muunganidzwa, upfu uye mvura zvinhu. Chinhu chikuru chemushonga wemvura imvura uye zvinowedzera, hazvisi chikamu chekusarudza, kubva kune yavo yakazvimirira yekuyera unit inogona kuonekwa, ichi ndicho chikamu chakakosha chekongiri kusanganisa zvinodiwa.Uye kushandiswa kwemvura yekudzikisa mumiririri mune admixture iri munzvimbo yakakosha, saka chii chinonyanya kuderedza mvura? Ndeapi maitiro?

Chekutanga pane zvese, ngatitaure nezve inowanzoshandiswa kongiri yekudzikisa mvura mumiririri:sodiumnaphthalenesulfonatekukwirira kwemvura kuderedza agent,polycarboxylic acidyakakwirira inoshanda yekudzikisa mvura mumiririri uyelignin water reduction agent.

Sodiumnaphthalenesulfonate inoshanda yekudzikisa mvura:rudzi urwu rwekudzikisa mvura ikemikari synthesis yeisina mhepo yemhando inobudirira yekudzikisa mvura, kuisa simende zvimedu zvine simba rekuparadzira mhedzisiro, mukumisikidzwa kwekongiri inoyerera, uye yekutanga yakasimba, yakakwira simba zvinodiwa zvecast-in-situ kongiri uye kusati kwavakwa, kushandiswa kwemvura yekudzikisa mumiririri kune chinhu chakanaka kwazvo.Inogona kuvandudza basa rechikamu chimwe nechimwe chekongiri zvakazara.Kongiri yakasanganiswa nemhando iyi yekudzikisa mvura inoshandiswa zvakanyanya muBridges,DAMS,ports and docks,tunnels. ,magetsi emagetsi, kuchengetedza mvura uye mapurojekiti ekuvaka ehurumende uye zvinhu zvekuchengetedza zvakasikwa.

Polycarboxylicsuperplasticizer yakakwirira yekudzikisa mvura mumiriri: iyi imhando nyowani yekudzikisa mvura, inozivikanwa se "yakanaka" yakakwirira performance kongiri musanganiswa, inogona kusanganiswa neyakasiyana-siyana yakasanganiswa mune akawanda-anoshanda admixtures, akadai seanopomba, ekutanga simba mumiriri, anti-seepage agent,coagulant.Kuderedza mvura kwe1%polycarboxylic asidhi superplasticizeriri 35%, uye simba rekutanga rinowedzerwa neanopfuura 50%.Inonyanya kukodzera kune high fly ash concrete.

Lignosulphonate inoshandiswa sekongiri yekudzikisa mvura mu 0.2-0.3%, inogona kuderedza kongiri kusanganisa kushandiswa kwemvura 10% -12%, kuderedza mvura-simende ratio, kuchengetedza simende inenge 10%, kunatsiridza kongiri kugona basa, fluidity uye permeability kuramba, kuvandudza kongiri simba uye compactness, ine simba rekutanga mhedzisiro, kupfupisa nguva yekumisikidza, kunatsiridza compressive simba.At the same time kuderedza kongiri kudonha kurasikirwa.

Ndeupi rudzi rwemusanganiswa, zvinoenderana nemutengi wega engineering inoda kuita, isu tinowanzo taura kuti engineering kongiri yekusanganisa chiteshi ine zvirinani kuchinjika, zvakanyanya nekuti sarudzo yekusanganiswa iri padyo nepurojekiti, ndosaka paine mapurojekiti makuru achaita. vachiri kuisa mari mukuvaka chiteshi chikuru chekusanganisa uye kwete kutenga zvakananga bhizinesi kongiri.Semuyenzaniso, iripo yakakwirira-yekukurumidza njanji yekusanganisa chirimwa chakanyatsogadzirirwa mapurojekiti enjanji.