Idethi Yokuthumela:7, Jul,2025

Ukuxhumana phakathi kwezixube nosimende:

Umsebenzi oyinhloko wama-admixtures ukuthuthukisa ukusebenza kwekhonkrithi ngokungeza izingxube ezihambisanayo kukhonkolo, ngaleyo ndlela kukhuthazwa ukuthuthukiswa kwekhwalithi yokwakha nokusebenza kahle kwamaphrojekthi wokwakha. Isizathu sokuthi kungani ama-admixtures angakhuthaza ukuthuthukiswa kwezakhiwo ezihlukahlukene zekhonkrithi ukuthi angakwazi ukukhiqiza imiphumela ehlangene ngokhonkolo. Imvamisa, imiphumela ehambisanayo phakathi kwe-admixtures kanye nekhonkrithi iyaguquguquka, iyahambisana futhi iyahambisana. Njengoba izingxenye eziyinhloko kanye nezilinganiso zezingxenye ezihlukahlukene ezixubeni zihluke kakhulu, ukuguquguquka phakathi kwe-admixtures ehlukene nokhonkolo nakho kuzohluka kakhulu. Izingxube ezinokuzivumelanisa nezimo ezingezinhle zingase zingabangeli kuphela izinga eliphansi lokunciphisa amanzi okhonkolo, kodwa futhi kubangele ukhonkolo ukuba lumiswe ngokushesha, ngaleyo ndlela kuthinte ukwakhiwa okuvamile kwephrojekthi. Izingxube ezinokuvumelana nezimo zingathuthukisa ngempumelelo izinga lokunciphisa amanzi likakhonkolo futhi zigweme ukuqhekeka nokuqhekeka kukakhonkolo ngokwezinga elithile. Ukumataniswa kwe-admixtures kanye nokhonkolo kuzothinta ukusebenza kahle kwe-adsorption kokhonkolo kuma-admixtures. Uma ukuhlotshaniswa kwe-admixtures kanye nokhonkolo kuphansi, ukusebenza kahle kwe-adsorption kokhonkolo kuma-admixtures kuzoba kuphansi kakhulu, okuzophinde kuthinte imiphumela ehlukahlukene yezingxube zayo. Ukuhambisana kwe-admixtures ngekhonkrithi kuzothinta ukusebenza kahle kokusetshenziswa kwe-admixtures. Uma ukuhambisana kwe-admixtures nekhonkrithi kumpofu, ukhonkolo ngeke ukwazi ukuhlanganisa nezixube, okuzoholela ekulahlekeni kwezinye izixube.

Iziphakamiso ezimisweni zokukhetha zezingxube zikakhonkolo ezixubile:

1. Abakhiqizi bengxube ye-concrete badinga ukuba nezinsizakalo eziphelele zokuthengisa ngaphambi kokuthengisa kanye nangemuva kokuthengisa. Lapho uthengisa izixube zekhonkrithi, abakhiqizi be-concrete admixture kufanele bagxile ezintweni ezifanele, basungule imibhalo yezobuchwepheshe ye-concrete ye-concrete ye-admixture ngangokunokwenzeka, banikeze imiyalelo ye-concrete ye-admixture, futhi baqinisekise ukuthi ukuthengiswa kwe-concrete admixtures kwenziwa ngaphakathi kobubanzi bokusekelwa kwezobuchwepheshe obutholakalayo.

2. Khetha ikhwalithi ye-admixture efanele. Lapho ukhetha izixube zikakhonkolo ezixubile, kuyadingeka ukwazi kahle izinhlobo ezisebenzayo nemithamo ye-admixtures. Thola izixube zikakhonkolo ezifanele ekuhlolweni okuqhathanisayo, khetha izingxube zekhwalithi ephezulu ngangokunokwenzeka, futhi unikeze ukudlala okuphelele endimeni yezixube ezikhonkolo.

3. Khetha uhlelo lwemitha olufanele ukukhiqiza okuzenzakalelayo. Ukukhetha uhlelo lwemitha olufanele ukukhiqiza okuzenzakalelayo nakho kungenye yezimiso ezibalulekile zokukhethwa kwezingxube zikakhonkolo ezixutshwe ngaphambili.

4. Ukukhetha izixube ezinezinzuzo eziphezulu zezomnotho Ukukhethwa kwezixube ezinezinzuzo eziphezulu ukuhlangabezana kangcono nezidingo zokwakha nezokukhiqiza zamayunithi okwakha. Kufanele ihambisane nesimo samanje samayunithi okwakha, ibe nezici ezithile zokuhlaziya okuphelele, ihlangabezane nezimfuneko zenkomba yezomnotho yamayunithi okwakha ngokwezinga elithile, futhi ibe nezici zenzuzo yezomnotho. Ngakho-ke, lolu hlelo lokukhetha okuxubile lubonwa ngokujulile ngamayunithi wokwakha.