1. Mphamvu ya kusakaniza:
Konkire yapamwamba imakhala ndi slag yabwino komanso phulusa lalikulu la ntchentche mu admixture, koma kusintha kwa fineness ndi khalidwe la admixture kumakhudza kwambiri ntchito yapolycarboxylate kuchepetsa madzi.Ubwino wa zosakaniza zomwe sizikukwaniritsa zofunikira zidzakhudza kwambiri mkhalidwe wa konkire watsopano. Nthawi zambiri, kusinthika kwa mchere wa mchere ndikwabwino, koma kusakanikirana kwake ndikokulirapo ndipo ndikosavuta kukhetsa magazi. Fly phulusa ayenera mosamalitsa ankalamulira kukwaniritsa zofunika za mlingo awiri ndi pamwamba, ndi mlingo awiri phulusa akhoza kwambiri kuchepetsa mlingo kuchepetsa madzi admixtures.
2. Mphamvu ya kuchepetsa madzi ndi kumwa madzi:
Pochita ntchito, pali vuto la mlingo woyenera wa mankhwala aliwonse ochepetsera madzi. Mlingo wokonda umadalira mtundu wa simenti, kuchuluka kwa simenti ndi mtundu wa admixture. Musanagwiritse ntchito uinjiniya, ndikofunikira kudziwa mulingo woyenera komanso kugwiritsa ntchito madzi moyenera (chiwerengero chamadzi-binder) chapolycarboxylicsuperplasticizer kuchepetsa madzikudzera mobwerezabwereza mayesero kusanganikirana malinga ndi zikhalidwe za simenti ndi admixtures. Mu ntchito ya uinjiniya, tcherani khutu ku guluu Sinthani zinthu za konkire, ndikusintha mlingo pang'ono malinga ndi kusintha, kuti konkire yatsopano ifike pakufunika.
3. Chikoka cha aggregate:
Mlozera wamchenga wamatope umakhudza kwambiri magwiridwe antchito ochepetsera madzi, makamaka matope omwe ali mumchenga. Pamene matope ali aakulu kuposa 3%, ntchito yochepetsera madzi imachepetsedwa kwambiri. Ndikovuta kupeza madzi okwanira bwino powonjezera zomwe zili. Mu C30 kuponyedwa-mu-malo mulu konkire wa ntchito Jinan, pamene zilipolycarboxylicsuperplasticizer kuchepetsa madzi(nofas) ndi 1.0%, imatha kukumana ndi madzimadzi komanso kufalikira komwe kumafunikira ndi polojekitiyi. Komabe, pogwiritsira ntchito, chifukwa cha matope ambiri a mchenga ndi miyala (makamaka mchenga), madzi a konkire amatha kuchepa akasakaniza. Nthawi zambiri, vutoli litha kuthetsedwa powonjezera moyenera zomwe zili muzitsulo zochepetsera madzi. Koma pamene zomwe zili muzitsulo zochepetsera madzi zikuwonjezeka kufika pamtengo wina, sizingakwaniritse zofunikira. Zomangamanga zina zimasonyeza kuti pamene matope ali aakulu kuposa 3%, zotsatira za wothandizira kuchepetsa madzi zimaonekera, koma pamene matope ali aakulu kuposa 5%, kungowonjezera zomwe zili muzitsulo zochepetsera madzi sizingathetse vutoli. vuto.
Komanso, chikoka cha gradation mwala ndi kuchuluka kwa singano ngati flakes papolycarboxylicsmakina apamwamba kwambiri apulasitikizikuwonekeranso. Pansi pa chiŵerengero chomwecho, zomwe zili ngati singano za mwala zimawonjezeka, zomwe zimachepetsa kusungunuka ndi kufalikira kwa konkire, ndipo zimakhala zovuta kutaya magazi ndi kulekanitsa. Kuphatikiza pakusintha kwambiri kusanganikirana kwa konkriti, zimakhala zovuta kupeza zotsatira zokhutiritsa posintha zomwe zili kapena mpweya wa konkriti.polycarboxylate kuchepetsa madzi.
Nthawi yotumiza: Jan-05-2022
