Chii chinonzi Admixture muKuvaka?

Mukuvaka, admixture inoreva chimwe chinhu chisiri mvura, akaunganidzwa, simende zvinhu, kana fiber inowedzerwa kune kongiri, dhaka, kana grout kuti ichinje zvimiro zvayo kana kuvandudza mashandiro ayo. Admixtures anoshandiswa kushandura kongiri nyowani kana yakaomeswa munzira dzakasiyana siyana, zvichibvumira kutonga kukuru pamusoro pezvivakwa zvayo uye kuwedzera kushanda kwayo, kusimba, simba, uye humwe hunhu. Heano mamwe marudzi akajairika emusanganiswa anoshandiswa mukuvaka:

1. Mvura-inoderedza Admixtures:

• Mvura-inoderedza misanganiswa, inozivikanwawo seplasticizers kana superplasticizers, zvinowedzera zvinoderedza mvura inodiwa kuti uwane kushanda kunodiwa kwekongiri pasina kupa simba kana kusimba. Vanovandudza kuyerera uye kushanda kwekongiri musanganiswa, zvichiita kuti zvive nyore kuisa uye kupedza.

2. Retarding Admixtures:

• Kudzoreredza admixtures anoshandiswa kunonoka kuseta nguva yekongiri, dhaka, kana grout, zvichibvumira kuwedzera kushanda uye nguva yekuisa. Zvinonyanya kukosha mumamiriro ekunze ekupisa kana kumapurojekiti makuru apo kunonoka mukufambisa, kuiswa, kana kupedza kunotarisirwa.

3. Accelerating Admixtures:

• Kusimudzira admixtures zvinowedzera zvinomhanyisa kuseta uye yekutanga simba kusimudzira kwekongiri, dhaka, kana grout, zvichibvumira kukurumidza kufambira mberi kwekuvaka uye kubviswa kwekutanga kwefomu. Iyo inowanzoshandiswa mumamiriro ekunze anotonhora kana apo kukurumidza kuwedzera simba kunodiwa.

4. Air-Entraining Admixtures:

• Air-entraining admixtures anowedzera anounza maturu emhepo asingaonekwi mukongiri kana dhaka, achivandudza kupikisa kwayo kutonhora-kunyorova kutenderera, kuyera, uye abrasion. Vanowedzera kushanda uye kusimba kwekongiri mumamiriro ekunze akaoma uye kuderedza njodzi yekukuvara kubva mukushanduka kwekushisa.

5. Kudzoreredza Mhepo-Entraining Admixtures:

• Kudzoreredza mhepo-inopinza misanganiswa inosanganisa zvimiro zvekudzoreredza uye mhepo-inopinza musanganiswa, inonotsa nguva yekumisikidza kongiri uku ichidzidzisa mweya kuvandudza kwayo kutonhora-kunyungudika kuramba. Anowanzo shandiswa munzvimbo dzinotonhora kana kuti kongiri yakavharwa nechando uye kunyunguduka.

6. Corrosion-Inhibiting Admixtures:

• Corrosion-inhibiting admixtures anowedzera anobatsira kuchengetedza yakamisikidzwa simbi inosimbisa mukongiri kubva mukuora kunokonzerwa nekusangana nehunyoro, chlorides, kana zvimwe zvine hukasha. Vanowedzera hupenyu hwebasa rezvivakwa zvekongiri uye kuderedza kuchengetedza nekugadzirisa mari.

7. Shrinkage-Kuderedza Admixtures:

• Shrinkage-reducing admixtures ndeyekuwedzera izvo zvinoderedza kuomeswa kudonha mukongiri, dhaka, kana grout, kuderedza njodzi yekuputika nekuvandudza kusimba kwenguva refu. Iwo anonyanya kubatsira muhombe kongiri kuiswa, precast kongiri zvinhu, uye yakakwirira-inoshanda kongiri musanganiswa.

8. Misanganiswa yekudzivirira mvura:

• Mishonga yekudzivirira mvura ndeyezviwedzerwa zvinonatsiridza kusamira kwekongiri, dhaka, kana grout, kuderedza kupinda kwemvura uye kudzivirira nyaya dzine chekuita nehunyoro senge efflorescence, kunyorova, uye ngura. Iwo anowanzo shandiswa muzasi-giredhi zvivakwa, dzimba dzepasi, tunnel, uye zvivakwa zvinochengeta mvura.

Muchidimbu, admixtures anoita basa rakakosha mune yemazuva ano kongiri tekinoroji, zvichibvumira kuchinjika kukuru, kushanda nesimba, uye kuita muzvirongwa zvekuvaka. Nekusarudza uye nekubatanidza admixtures akakodzera mumisanganiswa yekongiri, vavaki nevainjiniya vanogona kuwana zvakati dhizaini zvinodiwa, kuvandudza maitiro ekuvaka, uye kuwedzera kusimba uye kusimba kwezvivakwa zvekongiri.