ew uye yakakwirira zvinodiwa pakuita kwekongiri.Kubva kusimudzirwa kwekongiri admixtures muma1940s, kukura kwayo hakuna kungoshandura chimiro chemukati chekongiri yakaomeswa kubva kune microscopic uye submicroscopic mazinga, asi zvakare yakashandura chimiro chekrete nyowani mukuita. .Concrete admixture, inozivikanwawo se dispersant kana plasticizer, ndiyo inonyanya kushandiswa uye yakakosha musanganiswa.

Kuti ugadzirire kongiri nyowani ine yakanaka yekuyerera zvivakwa, iyo viscous chimiro chinoderedza kuyerera pakati pemasimende masimende inofanira kuparadzaniswa, kuitira kuti zvimedu zvesimende zviparadzwe zvizere mumvura.Kune zvakawanda zvivakwa zvinokanganisa simende fusion, senge mamineral anoumbwa esimende, chimiro uye saizi yemasimende masimende, kuvimbika kwemamineral crystallization, uye mamiriro ekushanda uye zvakatipoteredza.Zvinhu zviri pamusoro apa zvakananga kana kuti zvisina kunanga zvinodzora kugadzikana kwezvikamu zvesimenti mu slurry.Mamiriro ezvinhu epakati akasiyana anogona kushandura kukosha kwechaji yemagetsi yezvimedu zvesimende mune slurry, ndiko kuti, shandura iyo electrostatic repulsion pakati pezvimedu.

Kana huwandu hwakakodzera hwekongiri hwakasanganiswa huchawedzerwa kune nyowani kongiri, mapoinzi emasimende anowedzera, uye kudzoreredzwa kwemagetsi pakati pemasimende kunowedzera zvakanyanya, zvichikonzera kuderera kwe viscosity yekongiri nyowani, iyo inosimudzira kugadzikana kwe. iyo yese dispersion system.kuwedzera, uye liquidity yakawedzera.

Kazhinji, kuwedzera huwandu hwakakodzera hwekongiri yakasanganiswa mune simende paste inogona kusimudzira kongiri nyowani kuratidza yakasimba thixotropy.Izvi zvinokonzerwa nekuumbwa kwefirimu yakagadziriswa pamusoro pezvikamu zvesimenti zvakashambadzirwa kumvura inoderedza agent uye kuwedzera kwekugona.Kana paine kuzunguzika kudiki, zvinoratidzira zviri nani fluidity.Iyo thixotropy yekongiri nyowani isina superplasticizer yakanyanya kusimba.