Imixube yeConcrete

I-Admixtures yekhonkrithi yizithako ezikhethekileyo zongezwa kumxube wekhonkrithi ngexesha lokuxuba okanye ukudibanisa ukuguqula iimpawu zayo okanye ukuphucula ukusebenza kwayo. Ezi zixube zinokuphucula iinkalo ezahlukeneyo zekhonkrithi, kubandakanywa nokusebenza, amandla, ukuqina, ixesha lokubeka, kunye nokuchasana neekhemikhali okanye iimeko zokusingqongileyo. Nazi ezinye iintlobo eziqhelekileyo zokuxutywa kwekhonkrithi:

1. Imixube yokunciphisa amanzi:

• I-admixtures yokunciphisa amanzi, eyaziwa ngokuba yi-plasticizers okanye i-superplasticizers, isetyenziselwa ukunciphisa umthamo wamanzi afunekayo kumxube wekhonkrithi ngelixa ugcina ukusebenza.
• Baphucula ukuhamba kunye nokusebenza kwekhonkrithi, okwenza kube lula ukubeka nokugqiba.
• Ii-superplasticizers zingahlelwa njengoluhlu oluphezulu okanye oluphakathi olusekwe kumandla abo okunciphisa umxholo wamanzi kunye nokunyusa i-slump.

2. Cwangcisa iiMixube eziBatywayo:

• Ii-admixtures ze-Set retading zisetyenziselwa ukulibazisa ixesha lokumisela ikhonkrithi, ukuvumela ukubekwa okwandisiweyo kunye namaxesha okugqiba.
• Ziluncedo kwiimeko zemozulu ezishushu okanye xa zithutha ikhonkrithi kumgama omde.
• Le mixube inokunceda ukukhusela amalungu abandayo kunye nokuphucula ukudibanisa phakathi kokuthululwa kwekhonkrithi okulandelelanayo.

3. Ukukhawulezisa imixube:

• Ii-admixtures ezikhawulezayo zongezwa kwikhonkrithi ukukhawulezisa ukuseta kunye nophuhliso lwamandla okuqala.
• Ziluncedo kwiimeko ezibandayo zemozulu okanye xa kufuneka iishedyuli zokwakha ngokukhawuleza.
• I-Calcium chloride yinto eqhelekileyo yokudibanisa i-accelerating admixture, nangona ukusetyenziswa kwayo kunokukhokelela kwi-corrosion of reinforcement steel and efflorescence.

4. Imixube yokungenisa umoya:

• I-admixtures yokungenisa umoya isetyenziselwa ukwazisa amaqamza omoya amancinci kumxube wekhonkrithi.
• La maqamza omoya aphucula ukuqina kwekhonkrithi ngokubonelela ngokumelana nemijikelo yokunyibilika komkhenkce, ukunciphisa ukopha kunye nokwahlulahlula, nokuphucula ukusebenza.
• Imixube yokungenisa umoya idla ngokusetyenziswa kwiindawo ezibandayo kunye nekhonkrithi evezwe kwiityuwa zokukhupha i-icing.

5. Imixube yokuNcitshiswa nokuNcitshiswa kwaManzi:

• Ezi zidibaniso zidibanisa iipropati ze-set retading kunye ne-admixtures zokunciphisa amanzi.
• Balibazisa ixesha lokumisela ikhonkrithi ngelixa ngaxeshanye bephucula ukusebenza kunye nokunciphisa umthamo wamanzi.
• I-admixtures yokunciphisa kunye nokunciphisa amanzi ihlala isetyenziswa kwiimeko zemozulu ezishushu ukuthintela ukuseta ngokukhawuleza kunye nokulahleka kwe-slump.

6. I-Corrosion-Inhibiting Admixtures:

• I-Corrosion-inhibiting admixtures yongezwa kwikhonkrithi ukukhusela ukuqiniswa kwentsimbi edibeneyo kwi-corrosion.
• Benza uluhlu olukhuselayo kumphezulu wokuqiniswa, ukuthintela ukungena kwekloridi kunye nezinye izinto ezitshabalalisayo.
• Le mixube iluncedo ngakumbi kwiindawo zaselwandle okanye kwizakhiwo ezivezwe kwiityuwa zokuqhawula i-icing.

7. Imixube eNcitshiswayo yokuNcitshiswa:

• I-admixtures yokunciphisa i-shrinkage isetyenziselwa ukunciphisa ukomisa i-shrinkage kunye nokuqhekeka kwikhonkrithi.
• Basebenza ngokunciphisa ukuxinana komphezulu wamanzi epore, ukuvumela ukomisa okufanayo kunye nokunciphisa ukushwabana.
• Ezi zidibaniso ziluncedo kwiindawo ezinkulu zekhonkrithi, izinto zekhonkrithi zangaphambili, kunye nemixube yekhonkrithi esebenza kakhulu.

Imixube idlala indima ebalulekileyo ekwandiseni ukusebenza kunye nokuqina kwekhonkrithi kwizicelo ezahlukeneyo. Ngokukhetha ngononophelo kunye nokubandakanya i-admixtures efanelekileyo kumxube wekhonkrithi, iinjineli kunye neekontraka zinokufikelela kwiipropati ezinqwenelekayo ezifana nokuphuculwa kokusebenza, amandla, ukuqina, kunye nokuchasana neemeko ezimbi zokusingqongileyo. Kubalulekile ukulandela iingcebiso zomenzi kunye nezikhokelo zedosi xa usebenzisa imixube ukuqinisekisa ukusebenza ngokupheleleyo kunye nokuhambelana nomxube wekhonkrithi.