Umhla wokuPoswa:14,Mar,2023

I-concrete admixtures isetyenziswa ngokubanzi kwizakhiwo, ngoko umgangatho we-concrete admixtures uchaphazela kakhulu umgangatho weprojekthi. Umenzi we-concrete ye-concrete ye-agent yokunciphisa amanzi wazisa umgangatho ombi we-concrete admixtures. Xa kukho iingxaki, siya kuzitshintsha.

Okokuqala, ukuseta okungaqhelekanga kwenzeka ngexesha lokuxutywa kwekhonkrithi entsha, njengokumisela ngokukhawuleza, ukusetwa kobuxoki kunye nezinye izinto, okukhokelela ekulahlekelweni ngokukhawuleza kokuthotywa.

Okwesibini, ukopha, ulwahlulo kunye ne-stratification yekhonkrithi zinzulu, kwaye amandla okuqina ayancipha ngokucacileyo.

Okwesithathu, ukudilika kwekhonkrithi entsha akunakuphuculwa, kwaye kubonakala ngathi isiphumo sokunciphisa amanzi sezongezo zekhonkrithi sibi.

Okwesine, i-concrete shrinkage iyanda, ukunganyangeki kunye nokuqina kuncipha, kunye nesiphumo sokunciphisa kwindawo enkulu yekhonkrithi ayibonakali, kwaye ukuhlukana kweqondo lokushisa kubonakala.

I-concrete admixtures inokuzisa uncedo olukhulu ekwakhiweni, kwaye isetyenziswe ngokubanzi kwishishini lokwakha. Sele sazise ukhetho lwe-concrete admixtures ngaphambili. Apha kwakhona sigxininisa ukhetho lwezongezo.

1. Uhlobo lwe-admixture luya kukhethwa ngokweemfuno zoyilo lobunjineli kunye nolwakhiwo, kwaye emva koko kunqunywe ngokuhambelana novavanyo kunye nothelekiso olufanelekileyo lobugcisa kunye noqoqosho.

2. Akuvumelekanga ngokungqongqo ukusebenzisa imixube ekhonkrithi eyingozi kumzimba womntu kwaye ingcolise imo engqongileyo.

3. Kuzo zonke i-samente ye-concrete admixtures, sincoma ukusebenzisa i-samente yasePortland, i-samente ye-Portland eqhelekileyo, i-slag ye-samente yasePortland, i-samente ye-pozzolanic Portland, i-fly ash Portland isamente kunye ne-composite Portland isamente. Iingcebiso ezifudumeleyo: kufuneka sijonge ngcono ukulungelelaniswa kwe-admixtures kunye nesamente ngaphambi kokusetyenziswa.

4. Izinto ezisetyenziselwa ukusetyenziswa kwe-concrete admixtures kufuneka zikhonze imigangatho yangoku. Xa ulingo lokuxuba umxube wekhonkrithi, kufuneka sisebenzise imathiriyeli ekrwada yeprojekthi, ngokusekwe kwiimeko zokwenyani zeprojekthi.

5. Xa usebenzisa iintlobo ezahlukeneyo ze-admixtures, ingqwalasela ekhethekileyo kufuneka ihlawulwe ngokuhambelana kwabo kunye nefuthe lentsebenzo ebonakalayo. Ukukhethwa kwe-concrete admixture kugxininiswe kwakhona, okubonisa ukubaluleka kwayo kunye nethemba lokuba luncedo kumntu wonke.