Zuva Rokutumira:14,Feb,2022
Kushandisa admixtures kuvandudza mabhenefiti ane hukama:
Kongiri yakasanganiswa nezvimwe zvine chekuita nazvo, senge yakakwira yekudzikisa mvura mumiriri uye yekutanga simba mumiriri, inogona kugadzira kongiri mazuva manomwe esimba kupfuura ka1, kuderedza kubuda kweropa, kunatsiridza mwero wekudzikisa mvura, uye mumazuva makumi maviri nemasere mushure meiyo compressive simba reshiyo. inogona kusvika kupfuura 150%, saka mukugadzirira kwesimba repamusoro kana Ultra yakakwirira simba kongiri iri nyore kuwana.Musimba rekongiri yakasanganiswa nemusanganiswa inonatsiridza panguva imwe chete, kuvandudza kushanda kwayo uye kubuda kwemvura, uye kugadzirisa mhepo yemukati, kunatsiridza kurwisa kwecorrosion, alkali aggregate reaction, kunatsiridza simbi yesimbi kuramba, kuvandudza simba rakabatana, izvi kwete chete. wedzera kushandiswa kwekongiri, uye chengetedza zvinhu zvekuvaka, kuchengetedza simende kana kutsiva yakakosha simende.Uye mukongiri yakavhenganiswa neanononoka kuisa mhando mvura inoderedza mumiririri, inogona kugadzirisa nguva yekumisa, kuvandudza pumpability, kunonoka kongiri yekuisa nguva uye kuomesa nguva, inogona kusangana neinjiniya dzakasiyana, kunyanya misa kongiri yekuvaka uye yemhando zvinodiwa.Paunosarudza admixture mukongiri, zvinodikanwa kuti utarise hunhu hwesimende marudzi uye zvimwe zvikamu panguva imwe chete, uye sarudza akasiyana marudzi emvura yekudzikisa mumiriri zvinoenderana nezvinangwa zvakasiyana.Paunenge uchisarudza mvura inoderedza mumiriri, zvinodikanwa kufunga nezvehupfumi uye kuterera kune kugadzikana kwemhando yemvura inoderedza mumiriri.Kana wasangana nedambudziko iro simende uye musanganiswa usingajairirwe, zvinofanirwa kubvisa zvine chekuita nebvunzo, sarudza yakakodzera mvura yekudzikisa mumiririri mhando, kuongorora simende zvine chekuita nedambudziko remhando, kuona kwakakodzera admixture huwandu, kongiri musanganiswa reshiyo.Mukushandiswa kwekomboni yezvizhinji zvakasanganiswa, zvinofanirwa kutarisisa kuenderana pakati pemhando uye kukanganisa kwekongiri kuita, inofanirwa kuongororwa isati yashandiswa, senge polycarboxylic acid system yakakwira-inoshanda mvura inoderedza uye naphthalene system yekudzikisa mvura haifanirwe kuve. kushandiswa kwemusanganiswa.Nekuvandudza uye kushandiswa kwekongiri admixture, yakakunda kushaya simba kwesimba rakaderera, brittleness yakakwira uye zvichingodaro, uye yakavimbisa kuenderera kwekuvaka, yakapfupisa zvakanyanya nguva yekumisikidza, yakasimudzira kuvandudzwa kwekuyerera kwekongiri tekinoroji uye tekinoroji nyowani yekupomba uye. kudurura, uye nekukasira kuvandudzwa kwekongiri yekutengesa.Kuvandudzwa kwekongiri yekutengeserana kwakaunza mabhenefiti akanaka ehupfumi uye mabhenefiti ekuchengetedza kwezvakatipoteredza kuindasitiri yekuvaka yeChina, uye zvakasimudzira kusimudzira indasitiri yekuvaka uye kuvandudzwa kwehunyanzvi hwekuvaka.
Nzira dzehunyanzvi dzekuona kushandiswa kwemvura kwakaderera mukuvaka kongiri:
Concrete workability unhu ndiko kuyerera uye simba rayo kudzora, kunyanya zvinoenderana kongiri chikwata mvura kudyiwa uye mvura simende reshiyo (mvura simende reshiyo).Paunenge uchigadzira musanganiswa wechiyero chepamusoro pekuita kongiri, kushandiswa kwemvura kuchiri kusangana nekushanda kwayo semamiriro ezvinhu, kazhinji kuwanda kwekushandisa kwemvura, kudzora chiyero chesimba rekongiri chinhu chakananga.
Dzimwe nguva kana usingashandisi chekuwedzera, uchishandisa imwe mvura uchisangana nezvinodiwa zvekushanda) (ndiko kuti, kudonha, asi kusimba kwayo kazhinji hakugone kuenderera, uye kunyangwe kutadza kusangana nesimba rekugadzira, izvi imhaka yekuti mvura simende ratio. , uye chiyero chesimende uye kusangana nezvinodiwa, saka hazvizokwanisi kugadzira inonzwisisika musanganiswa chikamu;
Concrete padhigirii yakaderera yekudonha, simba racho riri nyore kuvandudza, asi kushanda kwayo hakusi.Nokudaro, kuitira kuti tive nechokwadi chekushanda uye kuve nechokwadi kuti simba harina kuderedzwa kana kunyange kuvandudzwa, tinofanira kushandisa admixture yakakodzera.Mazhinji emvura emvura ekudzikisa mhedzisiro yekongiri ine yakanyanya kunaka yekudzikisa mvura mumiriri, yakavandudza kushanda kwekongiri, uye kuderedza chiyero chesimende, kwete kungowana giredhi rimwe chete rekongiri, chengetedza 15% ~ 25% yesimende, uye inoita kuvaka kongiri, kushanda nesimba. kunatsiridza liquidity, mutengo wakaderera, unosangana zvakanyanya nezvinodiwa zvechizvino-zvino kuvaka uye zvakakosha zveinjiniya zvinodiwa.
Nguva yekutumira: Feb-14-2022