Post Date:8,Sep,2025

Basa rekongiri admixtures:

Basa rekongiri additives rinosiyana nerudzi rwekongiri additives. Basa guru nderokuvandudza kunyunguduka kwekongiri inoenderana apo kushandiswa kwemvura pa cubic mita yekongiri kana kushandiswa kwesimende hakushanduki; apo simenti inoshandiswa inoramba isina kuchinjwa kana kudonha kwekrete kunoramba kusina kuchinja, kushandiswa kwemvura kunogona kuderedzwa, uye simba rekrete rinovandudzwawo, uye kusimba kwekrete kunovandudzwa; apo simba rekugadzira uye kudonha kwekrete kunoramba kusina kuchinjwa, kushandiswa kwesimende kunogona kuchengetedzwa uye mari inogona kuderedzwa, etc. Mumiririri wesimba rekutanga anovandudza simba rekutanga rekrete uye rinonyanya kushandiswa pakugadzirisa zvirongwa zvekukurumidzira uye kongiri yekuvaka kwechando; iyo inoderedza mvura ine mvura inoderedza uye inosimbisa simba paunenge uchichengetedza konkrete kusagadziriswa; iyo air intraining agent inonyanya kuderedza kuparadzaniswa kwemvura kunokonzerwa nemabhubhu anogadzirwa panguva yekusanganiswa kwekrete uye inovandudza kushanda kwekrete; iyo retarder inogona kunonoka kumisa nguva yekongiri, uye ine zvese zvinononoka uye zvinoderedza mvura. Inonyanya kushandiswa kune yakakura-vhoriyamu kongiri, kongiri inovakwa pasi pemamiriro ekunze anopisa, kana kongiri inotakurwa nzendo refu.

Kuongororwa kwesimba reiyo admixture mvura inoderedza pakuita kongiri:

Concrete admixture water reducer inonyanya kuumbwa nemasurfactants. Iyi surfactant ndeye anionic surfactants. Muchidimbu, kongiri yealkali yemvura mumiririri haite chemakemikari basa nesamende. Mhedzisiro yayo pane kongiri inonyanya kuratidzwa mupurasitiki yekongiri nyowani. Plasticization ndeye kunyorova, adsorption, dispersion uye lubrication maitiro.

Iyo adsorption, dispersion, lubrication uye kunyorova mhedzisiro yemusanganiswa wemvura inoderedza inoita kuti zvive nyore kusanganisa kongiri zvakaenzana nemvura shoma chete, kuitira kuti kushanda kwekongiri nyowani kugadziriswe. Uku ndiko kuita kweplasticization kweiyo admixture mvura inodzikisira pane nyowani kongiri.