Iimpawu ze-Concrete Mix, Izikhokelo kunye neSlumps

Umxube wekhonkrithi ufana ne-recipe efanelekileyo iresiphi. Ikhonkrithi yenziwe ngama-aggregates, i-Portland samente, amanzi kunye nayiphi na enye into enamathementi okanye ukuxubeka kweekhemikhali . Ezinye izixube zekhonkrithi ziza kubambelela umoya ngokusebenzisa ukuxutywa okanye i-shing-shaining sement. Ukuxubana kwekhonkrithi kunokuba neekhemikhali ezisebenzisayo ukukhawuleza, ukuyeka okanye ukuphucula ukuphathwa , ukunciphisa kwiimeko ezithile zamanzi ubuninzi, ukwandisa amandla okanye ukutshintsha iipropati zekhonkrithi.

Ukukhetha umxube ophezulu wekhonkrithi ngumsebenzi onokuqwalasela iindleko kunye neemfuno zokubekwa kwexesha ngelixa unika umgangatho omkhulu wobugcisa kunye nemveliso.

Ikhonkrit Mix Mix Attributes

Umxube omkhulu wekhonkrithi kufuneka uqwalaselwe:

1. Ukungahambi kakuhle - Ukuxuba umxube wekhonkrithi yipropati ebeka umxube wokuxuba ukufakwa kunye nokudibanisa ngokufanelekileyo, ukuvumela ukugqiba umkhiqizo ngaphandle kokuhlukana.
2. Ukubambisana- Le propati inquma ukuhamba kunye nokudibaniswa kokuxubile kwekhonkrithi . Lo mlinganiso ulinganiswa ngokwemigqaliselo yokuqhawula; ziya kufunyanwa.
3. Amandla- Le ngenye yezona zinto zibaluleke kakhulu umxube wekhonkrithi, kunye nepropati eyaziwa kakhulu yekhonkrithi, lilinganiswa kusetyenziswa ukuxhatshazwa, emva kokuba ikhonkrit ifikelele kwiintsuku ezingama-28 emva kokuthululwa.
4. Amanzi-Cement Rati- Umlinganiselo we-W / C kumxube wekhonkrithi, uchazwa njengobudlelwane kunye nomlinganiselo phakathi kwesisindo samamente, ubunzima bamanzi obonge kwimxube, kunye ne-pozzolan eyongeziweyo. Esi simpawu sinobudlelane ngqo kunye noxhomekeke kumandla okuxuba.

1. Ukulungeleka - Ixube elihle lekhonkrit liza kunika ngekhonkrithi ezinokumelana nezimo zemozulu ezinzulu kunye nezinguqu ngaphandle kokuphawula. Ukomelela ngakumbi ikhonkrithi, ukuxhathisa ngakumbi kwiimeko zezulu ezifana nokuqhwala, ukumisa, ukumisa, nokufudumeza.
2. Ukuxinisa- Ukuxubana ngokuchanekileyo kunokucaciswa nakwezinye izicelo ezifana ne-counterweights, ukukhuselwa kwemisebe, ukugxininisa okanye ukunyamezela nokunyamezela.

1. Ukukhululwa komlilo- Umxube wekhonkrithi kufuneka uqwalaselwe ngokushisa okukhutshwa phantsi kwe-chemical reaction which will fade kwizinga elifanelekileyo ngaphandle kokuvelisa iintsimbi okanye ukucima.

I-Concrete Mix Usebenzisa i-ACI 211

Umxube wokuxuba ukhonkrithi olunikezwa yiKomidi ye-ACI 211.1 yenye yeendlela ezisetyenziswa kakhulu ukuyila indlela eya kukuvumela ukuba:

1. Yisebenzise kuwo onke amaninzi.
2. Iinkqubo ezifanayo zokudibanisa okanye zengqungquthela.
3. Sebenzisa ukuyila umxube we-khonkrithi okanye ongenawo umoya.

Indlela ye-ACI 211.1 ingasetyenziselwa ukudibanisa umxube wekhonkrithi ngokulandela ezi nyathelo ezilula:

1. Khetha okujoliswe kuyo
2. Khetha ubungakanani obukhulu bebonke, ubuninzi bomxube wekhonkrithi, okubhetele ekunciphiseni ukutshatyalaliswa nokukhanda.
3. Ukusebenzisa itafile ye-ACI 6.3.3 qi kelela umxholo wamanzi nomoya.
4. Khetha umlinganiselo wesenti wamanzi kumxube wekhonkrithi.
5. Bala umxholo we-samente ngokuhlula umxholo wamanzi ngumlinganiselo wesenti samanzi.
6. Linganisa umxholo oqokelelweyo.
7. Hlalisa umxholo osemgangathweni.
8. Ukulungelelanisa ubuninzi bomswakama ; Ubumbano obunamanzi bunokunciphisa kakhulu inani lemali ukuba longezwe.
9. Yenza iibhentshi zokulinga ukuze uqinisekise ukuba umxube wekhonkthi uhlangabezana neemfuno zakho zoyilo.

Umxube wekhonkco: i-Slumps ekhuthazwayo

Xa ulungiselela umxube wekhonkrithi, kufuneka uqwalasele uhlobo oluthile lokulindela kulindeleke.

Landela ezi ziphakamiso:

1. Iindonga ezisiseko eziqinisiweyo kunye neenyawo:

2. a. Maximum Slump 75mm

   b. I-Minimum Slump 25mm

3. Amanqatha aphantsi, ii-caissons, kunye neendonga zendawo:

4. a. Maximum Slump 75mm

   b. I-Minimum Slump 25mm

5. Iimitha kunye neendonga eziqinisiweyo:

6. a. Maximum Slump 100mm

   b. I-Minimum Slump 25mm

7. Ukwakha iikholomu:

8. a. Maximum Slump 100mm

   b. I-Minimum Slump 25mm

9. Iipravements and slabs:

10. a. Maximum Slump 75mm

    b. I-Minimum Slump 25 mm

11. I-Mass Concrete Mix:

12. a. Maximum Slump 75mm

    b. I-Minimum Slump 25mm