Post Date:2,Sep,2025

Mhando dzakajairwa dzemisanganiswa uye basa ravo mune yakagadzirira-yakasanganiswa kongiri:

Concrete admixtures chinhu chakakosha chekuvandudza kushanda kwekongiri, uye marudzi akasiyana-siyana emusanganiswa ane mabasa akasiyana mune yakagadzirira-yakasanganiswa kongiri. Marudzi akajairika emusanganiswa anoderedza mvura, accelerators, antifreeze agents uye preservatives. Sechinhu chakakosha mukongiri, zvinoderedza mvura zvinogona kuderedza zvakanyanya kuwanda kwemvura inoshandiswa mukongiri uye kuvandudza kushanda nesimba kwekongiri. Kushandiswa kwezvinoderedza mvura kunogona kuita kuti kongiri ive nyore kuvaka, kuyerera kuri nani, uye kukurudzira kupararira kuri nani kwemasimende, nekudaro kuvandudza simba rekutanga uye anti-permeability yekongiri.

Accelerators inogona kukurudzira kukurumidza kuomeswa kwekongiri uye kupfupisa yekutanga kuseta nguva, iyo yakakodzera kune yakaderera tembiricha nharaunda kana mamiriro apo nekukurumidza kuvaka kunodiwa. Kuwedzerwa kwenguva yepurasitiki kune zvakakosha pakuvandudza kushanda kwekrete.

Antifros ine basa rekuchengetedza kongiri pasi pekushisa kwakadzika, izvo zvinogona kuita kuti kongiri ivakwe zvakajairwa pasi pemamiriro ekunze ekupisa, uye kudzivirira kongiri kubva pakusimba zvishoma nezvishoma nekuda kwekuderera kwekushisa, izvo zvinokanganisa kukura kwesimba.

Mapreservatives anoshandiswa kurwisa ngura munzvimbo dzakasiyana siyana uye kugadzirisa kusimba kwekongiri.

Izvi zvakajairika kongiri admixtures ane hunhu hwavo uye mashandisiro. Kusarudzwa kwakaringana uye kushandiswa kunogona kuvandudza zvakanyanya mashandiro eyakagadzirirwa-yakasanganiswa kongiri uye kugadzirisa mashandiro uye kunaka kweprojekiti yese. Kunzwisisa mashandiro uye mashandisirwo eakasiyana-siyana admixtures kuchabatsira mainjiniya ekuita sarudzo kuti vasarudze zvinosanganiswa zvakanyanya nesainzi uye zvine musoro uye kukwidziridza mashandisirwo einjiniya.

yakagadzirira-yakasanganiswa kongiri.

Kuenzanisa kuongororwa kweakasiyana akasanganiswa mune yakagadzirira-yakasanganiswa kongiri:

Mvura inoderedza inowanzoshandiswa yakagadzirira-yakasanganiswa kongiri musanganiswa. Basa rayo guru nderokuderedza kushandiswa kwemvura kwekrete pasina kushandura kupatsanurwa uye kufanana kwekrete, nokudaro kuvandudza kushanda uye simba rekrete.Kuderedzwa kwehuwandu hwemvura inoshandiswa mukrete yakagadzirira-yakasanganiswa ine simba guru pahutano. Mhedzisiro yekutanga ndeye kuvandudzwa kwesimba rekongiri. Izvi zvinodaro nekuti huwandu hwemvura hunodiwa sement hydration reaction hwakadzikira, kuitira kuti mvura yakawanda ishandiswe kugadzira zvigadzirwa zve hydration, nekudaro ichiwedzera chisungo pakati pezvimedu zvechikamu chakasimba nekuvandudza simba. Kushandiswa kwemvura inoderedza kunogona kuvandudza kusimba kwekongiri. Zvigadzirwa zvinogadzirwa nesamende hydration mukongiri zvinogona kuzadza pores, kuderedza porosity, uye kuderedza pore yekubatanidza, nekudaro kuvandudza zviratidzo zvekugara kwekongiri senge kusamira uye chando kuramba.