Kuziva Kwekutanga kweConcrete Additives

1. Chii chinonzi concrete additives?

Concrete additives zvinhu zvinowedzerwa pamberi kana panguva yekusanganiswa kuti uvandudze hutsva hutsva hwekrete uye kongiri yakaoma. Huwandu hwema admixtures hushoma pane 5% yemhando yesimende (kunze kwezvimwe zviitiko).

2. Concrete additives yakakamurwa muzvikamu zvina maererano nemabasa avo;

(1) Zviwedzerwa zvekuvandudza rheological properties yekongiri yakasanganiswa, kusanganisira dzakasiyana-siyana superplasticizers, kupomba mishonga uye air-entraining agents;

(2) Zviwedzerwa zvekugadzirisa nguva yekuisa uye kuomesa kuita kwekongiri, kusanganisira retarders, ekutanga simba vamiririri uye accelerators;

(3) Additives kuvandudza kusimba kwekongiri, kusanganisira air-entraining agents, kudzivirira mvura, rust inhibitors, etc.;

(4) Additives kuwedzera zvimwe zvinhu zvekongiri, kusanganisira mumiririri wekuwedzera, antifreeze, coloring agent, etc.

3. 27 kinds of admixtures are defined in the standard of concrete admixtures: ordinary water reducer, concrete hardener, retarder, accelerator, air-entraining agent, high-efficiency superplasticizer, retarding high-efficiency water-reducing agent, early strength water-reducing agent, Retarding water reducing agent, air-entraining water reducing agent, waterproofing agent, rust inhibitor, air-entraining agent, expansion agent, antifreeze, coloring agent, quick-setting agent, pumping agent, water-retaining agent, flocculant, thickening agent, shrinkage reducing agent, plasticizer, ground slag, silika fume, ground fly ash, ground natural zeolite.

Ordinary water reducing agent refers to an admixture that can reduce the amount of water used for mixing when the concrete slump is the same.

Early strength agent refers to an admixture that accelerates the early strength development of concrete.

Retarder refers to an admixture that prolongs the setting time of concrete.

Iyo coagulant isanganiswa inogona kupfupisa nguva yekusanganisa nekuisa.

Air-entraining agent inoreva musanganiswa unogona kuunza huwandu hukuru hwekugoverwa zvakafanana., yakagadzikana uye yakavharwa mabhuru madiki panguva yekusanganiswa kwekongiri uye anogona kuramba ari mukongiri yakaoma.

High-efficiency superplasticizer inoreva musanganiswa unogona kuderedza zvakanyanya huwandu hwemvura inoshandiswa kusanganisa pasi pemamiriro ekuti kudonha kwekongiri kwakafanana..

Kudzoreredza yakakwira-inoshanda superplasticizer inoreva musanganiswa une zvese zvinononoka uye zvakanyanya-kuita basa rekudzikisa mvura..

Early-simba superplasticizer inoreva musanganiswa une ese ekutanga-simba uye ekudzikisa mvura mabasa..

Retarding superplasticizer inoreva musanganiswa une ese ari maviri ekudzoreredza uye ekudzikisa mvura mabasa.

Air-entraining superplasticizer inoreva musanganiswa une mhepo-inopinza uye mabasa ekudzikisa mvura..

Mvura inodzivirira mvura inoreva musanganiswa unogona kuvandudza kusamira kwesamende dhaka uye kongiri..

Rust inhibitors zvinoreva zvinowedzerwa zvinogona kuvharidzira kana kuderedza kukora kwemasimbi mbariro uye dzimwe simbi dzakaiswa zvikamu mukongiri..

Foaming agent inoreva musanganiswa une huwandu hukuru hwemapores akagovaniswa mukongiri yakaoma nekuda kwemakemikari reaction uye gasi rinoburitswa panguva yekugadzirira kongiri..

Expansion agent inoreva musanganiswa unokwanisa kuburitsa vhoriyamu yekuwedzera kwekongiri nekuda kwekuita kwekemikari panguva yekuomesa kongiri..

Antifreeze musanganiswa unogona kuomesa kongiri pakupisa kwakashata uye kusvika pakukwana kwesimba remuridzi wemba mukati menguva yakatarwa pasi pemamiriro ekurapa akataurwa..

Colouring agent inoreva musanganiswa unogona kugadzirira kongiri ine mavara akagadzikana.

Iyo accelerator musanganiswa unogona chete kuseta uye kuomesa kongiri nekukurumidza.

Pumping agent inoreva musanganiswa unogona kuvandudza kuita kwekupomba kwekongiri musanganiswa.

Mvura inochengeta mvura (water retention agent) zvinoreva musanganiswa unokwanisa kuderedza kurasikirwa kwemvura mukongiri kana mudhaka.

Flocculant musanganiswa unogona kuwedzera viscosity yekongiri uye kuramba simende uye aggregates panguva yekuvaka mumvura..

Thickener inoreva musanganiswa unogona kuwedzera viscosity yemusanganiswa wekongiri.

Shrinkage reducing agent zvinoreva musanganiswa unoderedza kuderera kwekongiri.

Plastic preservative inoreva musanganiswa unoderedza kurasikirwa kwekongiri inodonha mukati menguva yakatarwa..

Finely ground slag inoreva chigadzirwa chine granulated blast furnace slag yakaomeswa uye pasi kuti isvike pakunaka kwakatsanangurwa..

Silica fume chigadzirwa chine amorphous silicon dioxide sechinhu chikuru, iyo inounganidzwa nemuunganidzi weguruva mushure mekunge silicon vapor yaburitswa kuburikidza neflue yakaitwa oxidized panguva yekunyungudutswa kweferrosilicon alloy kana silicon yeindasitiri..

Finely ground natural zeolite inoreva chigadzirwa chinoshandisa natural zeolite neravidzo chaiyo uye kuchena sezvinhu zvakasvibirira uye inogayiwa kune yakatsetseka..

Cie-China.org ndiyo inotungamira furo kongiri yekuwedzera inopa inopa kongiri inopupuma mumiriri, superplasticizer,foam kongiri simba rekusimudzira kune lightweight kongiri, CLC inovhara. Kana uri kutsvaga foaming agent, ndapota inzwa wakasununguka taura nesu.