Ukusetyenziswa kweZinciphisi zaManzi, iiRetarders, kunye neSuperplasticizers

Izinciphisi zamanzi, iiretarders, kunye ne-superplasticizers yimixube yeekhemikhali esetyenziswa kuyoimixube eziphathekayoukwandisa iipropathi ezithile kunye nokuphucula ukusebenza kwekhonkrithi ngexesha layo elitsha kunye nokuqina kwayo. Nganye kwezi zidibaniso zenza injongo eyodwa, kwaye ziqhele ukuqeshwa kwiiprojekthi zokwakha ukuphumeza iimpawu ezinqwenelekayo zekhonkrithi. Makhe sihlolisise ukusetyenziswa kwezinciphisi zamanzi, iiretarders, kunye ne-superplasticizers ngokubanzi:

1. Izinciphisi zaManzi:

Injongo:

• Ukunciphisa umthamo wamanzi: Izinciphisi zamanzi, ezaziwa ngokuba zii-agent zokunciphisa amanzi okanye iiplastiki, zisetyenziselwa ukunciphisa umthamo wamanzi afunekayo kumxube wekhonkrithi ngaphandle kokuphazamisa ukusebenza kwawo.

IziNzuzo eziPhambili:

• Ukuphuculwa kokuSebenza: Ngokunciphisa umthamo wamanzi, abanciphisi bamanzi baphucula ukusebenza kunye nokubambisana komxube wekhonkrithi.
• Ukunyuka kwamandla: Ukunciphisa umthamo wamanzi kudla ngokukhokelela kumandla aphezulu ekhonkrithi kunye nokuqina.
• Ukugqibezela okomeleziweyo: Ikhonkrithi enezinciphisi zamanzi idla ngokuba lula ukuyigqiba, nto leyo ekhokelela kwindawo egudileyo.

Usetyenziso:

• I-High-Strength Concrete: Izinciphisi zamanzi zisetyenziswa ngokuqhelekileyo ekuveliseni i-concrete ephezulu yamandla apho imilinganiselo ephantsi ye-samente yamanzi ibaluleke kakhulu.
• Ukumpompa iConcrete: Baququzelela ukumpompa ikhonkrithi kumgama omde ngokugcina ulwelo olungakumbi.

2. Abalindi:

Injongo:

• Ukulibazisa Ixesha lokuSeta: Iiretar ziyi-admixtures ezenzelwe ukucothisa ixesha lokumisela ikhonkrithi, ukuvumela ixesha elongeziweyo lokusebenza.

IziNzuzo eziPhambili:

• UkuSebenza okongeziweyo: Abahlaziyi bathintela ukusekwa kwangaphambili kwekhonkrithi, ukubonelela ixesha elingakumbi lokuxuba, ukuthutha, kunye nokubeka izinto eziphathekayo.
• Ukucutha okucuthiweyo: Amaxesha aphantsi okusetwa kancinci anokunciphisa umngcipheko wokuqhekeka, ngakumbi kwiimeko ezishushu.

Usetyenziso:

• I-Hot Weather Concreting: Kwiimeko apho amaqondo obushushu aphezulu anokukhawulezisa ukusetwa kwekhonkrithi, ii-retarders zinceda ukulawula ixesha lokumisela.
• IiProjekthi ezinkulu zoKwakha: Kwiiprojekthi ezinkulu apho uthutho kunye nokubekwa kwekhonkrithi kuthatha ixesha elide.

3. Iiplastiki ezinkulu:

Injongo:

• Ukuphucula ukuSebenza: I-Superplasticizers, eyaziwa ngokuba yi-high-range yokunciphisa amanzi, isetyenziselwa ukwandisa kakhulu ukusebenza kwekhonkrithi ngaphandle kokunyusa umthamo wamanzi.

IziNzuzo eziPhambili:

• Ukusebenza okuphezulu: Ii-Superplasticizers zivumela ukuveliswa kwekhonkrithi esebenza kakhulu kunye nehambayo kunye nomlinganiselo ophantsi wesamente yamanzi.
• Amandla Ongeziweyo: Njengabanciphisi bamanzi, ii-superplasticizers zifaka isandla kumandla aphezulu ekhonkrithi ngokuvumela umlinganiselo ophantsi wesamente yamanzi.

Usetyenziso:

• I-Self-Compacting Concrete (SCC): I-Superplasticizers isoloko isetyenziselwa ukuveliswa kwe-SCC, apho kufuneka khona ukuhamba okuphezulu kunye neempawu zokuzimela.
• I-High-Performance Concrete: Kwizicelo ezifuna amandla aphezulu, ukuqina, kunye nokuncitshiswa kokungena.

Iingqwalasela eziqhelekileyo:

1. Ukuhambelana: I-Admixtures kufuneka ihambelane nezinye izinto kumxube wekhonkrithi, kuquka i-samente, i-aggregates, kunye nezinye izongezo.
2. Ulawulo lwedosi: Ulawulo oluchanekileyo lwedosi ye-admixture ibalulekile ekufezekiseni iimpawu ezinqwenelekayo zekonkrithi. Ukusetyenziswa kakhulu kunokukhokelela kwiziphumo ezibi.
3. Uvavanyo: Uvavanyo oluqhelekileyo kunye namanyathelo okulawula umgangatho kubalulekile ukuqinisekisa ukusebenza kwe-admixtures kumxube othile wekhonkrithi.
4. Iingcebiso zabavelisi: Ukuthobela iingcebiso kunye nezikhokelo ezibonelelwa ngumenzi we-admixture kubalulekile ekusebenzeni ngokupheleleyo.

Ukuqukumbela, ukusetyenziswa kwezinciphisi zamanzi, iiretarders, kunye ne-superplasticizers kwimixube yekhonkrithi ibonelela ngoluhlu lweenzuzo, ukusuka ekusebenzeni okuphuculweyo kunye namaxesha okusetwa okwandisiweyo ukuya kumandla aphuculweyo kunye nokuqina. Ukuqonda iimfuno ezithile zeprojekthi yokwakha kunye nokukhetha i-admixture efanelekileyo okanye indibaniselwano ye-admixtures ibalulekile ekufezekiseni iipropati zekhonkrithi ezifunwayo. Imilinganiselo ye-Admixture kunye noyilo lomxube wekhonkrithi kufuneka lucwangciswe ngononophelo kwaye luvavanywe ukuqinisekisa ukusebenza kakuhle kunye nokuqina kwexesha elide lekhonkrithi.