Ziziphi ii-Admixtures kwaye zeziphi iintlobo ezahlukeneyo zeAdmixtures?

I-Admixtures liqela lezinto zongezwa kwikhonkrithi, i-mortar, okanye i-grout ngexesha lokuxuba ukuguqula iimpawu zabo okanye ukuphucula ukusebenza kwabo. Ezi zixhobo zihluke kwizinto eziphambili zekhonkrithi (i-samente, i-aggregates, amanzi) kwaye zisetyenziswe ngamanani amancinci ukuphumeza iziphumo ezifunwayo ezithile. I-Admixtures inokutshintsha iipropathi ezahlukeneyo zekhonkrithi, kubandakanya ukusebenza, ixesha lokubeka, amandla, ukuqina, kunye nokuchasana nezinto ezisingqongileyo. Banikezela ngokuguquguquka kuyilo lomxube wekhonkrithi, ukuvumela iinjineli kunye nabakhi ukuba balungelelanise iifom zekhonkrithi ukuhlangabezana neemfuno ezithile zeprojekthi. Nazi iintlobo ezahlukeneyo zemixube eqhelekileyo esetyenziswa kulwakhiwo:

1. Imixube yokunciphisa amanzi (iPlasticizers okanye iiSuperplasticizers):

• I-admixtures yokunciphisa amanzi izongezo ezinciphisa umthamo wamanzi ofunekayo kwi-slump enikeziweyo yekhonkrithi ngaphandle kokuphazamisa ukusebenza kwayo. Baphucula ukuhamba kunye nokusebenza kwemixube ekhonkrithi, evumela ukubekwa lula kunye nokudibanisa. Iiplastiki zeplastiki ziqhele ukusetyenziswa kwikhonkrithi kunye namaxesha aqhelekileyo okumisela, ngelixa ii-superplasticizers zisetyenziswa kwikhonkrithi efuna amaxesha amisiweyo awandisiweyo.

2. Ukurhoxiswa kweMixube:

• Ukunciphisa imixube ukulibazisa ixesha lokumisela ikhonkrithi, udaka, okanye igrout, evumela ukusebenza ixesha elide kunye nexesha lokubeka. Ziluncedo ngokukhethekileyo kwiimeko zemozulu ezishushu okanye kwiiprojekthi ezinkulu apho ukulibaziseka kwezothutho, ukubekwa, okanye ukugqiba kulindeleke.

3. Ukukhawulezisa imixube:

• Ukukhawulezisa imixube kwandisa izinga lokumisela kunye nophuhliso lwangoko lwamandla ekhonkrithi, udaka, okanye igrout, evumela ukuqhubela phambili kolwakhiwo olukhawulezayo kunye nokususwa kweformwork kwangethuba. Ngokuqhelekileyo zisetyenziswa kwiimeko ezibandayo zemozulu okanye xa kufuneka ukuzuza amandla ngokukhawuleza.

4. Imixube yokungenisa umoya:

• Imixube yokungenisa umoya yazisa amaqamza omoya emikroskopu kwikhonkrithi okanye udaka, iphucula ukuxhathisa kwayo kwimijikelo yokunyibilika komkhenkce, ukukala, kunye nokurhawuka. Baphucula ukusebenza kunye nokuqina kwekhonkrithi kwiimeko zemozulu ezinzima kunye nokunciphisa umngcipheko womonakalo ukusuka ekuguquguqukeni kweqondo lokushisa.

5. Ukurhoxiswa kweMixube yokuNgenisa umoya:

• Ukubuyiswa kwe-admixtures ye-air-entraining idibanisa iipropati ze-retarding kunye ne-air-entraining admixtures, ukulibazisa ixesha lokubeka ikhonkrithi ngelixa likwafaka umoya wokuphucula ukuxhathisa ukunyibilika kwayo. Ngokuqhelekileyo zisetyenziswa kwiindawo ezibandayo okanye kwikhonkrithi evezwe kumjikelo womkhenkce kunye nokunyibilika.

6. I-Corrosion-Inhibiting Admixtures:

• I-Corrosion-inhibiting admixtures ikhusela ukuqiniswa kwentsimbi efakwe kwikhonkrithi kwi-corrosion ebangelwa ukuvezwa kokufuma, i-chlorides, okanye ezinye ii-agent agents. Bandisa ubomi benkonzo yezakhiwo zekhonkrithi kunye nokunciphisa iindleko zokugcina nokulungiswa.

7. Imixube eNcitshiswayo yokuNcitshiswa:

• I-admixtures yokunciphisa i-shrinkage inciphisa ukomisa i-shrinkage kwikhonkrithi, ukunciphisa umngcipheko wokuqhaqha kunye nokuphucula ukuqina kwexesha elide. Ziluncedo kwiindawo ezinkulu zekhonkrithi, izinto ze-precast, kunye nemixube yekhonkrithi ephezulu.

8. Imixube yokuthintela amanzi:

• I-admixtures yokukhusela amanzi iphucula ukungabonakali kwekhonkrithi, ukunciphisa ukungena kwamanzi kunye nokuthintela imiba enxulumene nokufuma efana ne-efflorescence, ukufuma, kunye nokubola. Ngokuqhelekileyo zisetyenziswa kwizakhiwo ezingaphantsi komgangatho, amagumbi angaphantsi, amatonela, kunye nezakhiwo zokugcina amanzi.

9. Imixube yemibala:

• Imixube yombala yongezwa kwikhonkrithi ukunika umbala okanye ukufezekisa iziphumo zokuhombisa. Ziza ngeendlela ezahlukeneyo, kubandakanya ii-pigments, amabala, iidayi, kunye nezitywini ezinemibala, ezivumela ukwenziwa ngokwezifiso komphezulu wekhonkrithi ukuhambelana neemfuno zoyilo.

10. I-Rheology-Modifying Admixtures:

• I-Rheology-modifying admixtures iguqula ukuhamba kunye neepropati ze-rheological zekhonkrithi, udaka, okanye i-grout ukuphucula ukusebenza, ukumpompa, okanye ukulawula i-viscosity. Ngokuqhelekileyo zisetyenziselwa ukudibanisa ikhonkrithi, i-shotcrete, kunye nemixube yekhonkrithi ephezulu.

Ezi zezinye zezona ntlobo ziphambili zemixube esetyenziswa kulwakhiwo, nganye ibonelela ngezibonelelo ezithile kunye nezicelo zokuphucula ukusebenza kakuhle kunye nokuhlangabezana neemfuno zeprojekthi. Kubalulekile ukukhetha kunye nokubandakanya imixube efanelekileyo ngokusekelwe kwiinkcukacha zeprojekthi, iimeko zokusingqongileyo, kunye neendlela zokusebenza.