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Usuku lwePosi:31,Opt,2022

 

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I-Concrete Admixturesisetshenziswe kukhonkolo cishe iminyaka eyikhulu njengomkhiqizo. Kepha babuyela emuva ezikhathini zasendulo, eqinisweni, kudala abantu bakwazi ukusetshenziswa kwezithasiselo ezithile zokwakha izinto zokwakha. Amarekhodi wedatha aqinisekisiwe ukuthi ngonyaka we-1885 baseYurophu asevele ayazi ukuthi abalawuli abalukhuni, njenge-lime ne-gypsum, bangezwa kukhonkolo. Ekupheleni kwekhulu le-19, ukusetshenziswa kwe-calcium chloride kwakuwukufutheka futhi kusasetshenziswa nanamuhla. Ngo-1895, kwangezwa amanzi kanye namapulasitiki kukhonkolo we-caving yomgwaqo, okuthuthukisa ukusebenza kahle kokhonkolo.

Imikhiqizo yezimboni ehlelekile yaqala ukubonwa ngo-1910. Lapho iNyakatho Melika yathuthukiswa e-United States ngawo-1930 ngawo-1930s, indawo ekhonkolo yathuthukiswa ngokushesha ngenxa yesimo sezulu esinzima. Ukuze uthuthukise ikhwalithi yokhonkolo we-pasment, "i-vinsa resin" yayisetshenziselwa ukuthuthukisa ukuqina kokhonkolo. ucansi. Umkhiqizo Wangempela Wocwaningo lweSayensi yi- "Pozzolitn" Amanzi Encishisiwe Agent (Pozzolitn), ecwaningwe ngempumelelo futhi ekhiqizwe nge-EW SCXIPTRT ye-Masterbuild of United States ngonyaka we-United States ngo-1935, okuhlanganiswa kakhulu i-Lignosulfonate ePulp Waste Liquid. Ngo-1937, i-United States yakhipha ilungelo lobunikazi bokuqala lokunciphisa amanzi emlandweni. Ngo-1954, i-batch yokuqala yamazinga okuhlolaI-Concrete Admixturesyakhiwa.

 

Ukusetshenziswa okusemthethweni kweI-Concrete AdmixturesEzweni lami kwakukhona ngawo-1950. Ngaleso sikhathi, i-ejenti ye-rosin sapEdified air-averaning air enawo ochwepheshe abavela eSoviet Union yethulwe. Kwakusetshenziswa eTianjin Tanggu echwebeni elisha, i-Wuhan Yangtze River Bridge kanye ne-Foziling Reservoriir, futhi kwathola imiphumela ethile. Kamuva, amakhilokhi kakhonkolo asebenzisa uketshezi lwe-pulp imfucumfucu kusuka ku-sulfite papermaking kanye noju emkhakheni kashukela njengoba kusetshenziswa izinto ezingavuthiwe. Ukusetshenziswa kwe-admixtures nakho kwaqala lapho.

Ukuthuthukiswa kanye nokusetshenziswa kweI-Concrete Admixturesunokubaluleka kwesikhathi eside. Ukukhulisa ngamandla futhi kuthuthukiswe ukusetshenziswa kweI-Concrete Admixtureskuyindlela ebalulekile yokuthuthukisa inqubekela phambili yesayensi embonini yezokwakha.

Ehlelweni lokwakha lemisebenzi yokwakha, ukusetshenziswa kwama-admixtures kungathuthukisa ngempumelelo imvelo yokwakha, kusebenze ukusetshenziswa kwemishini ehlukahlukene yemishini, kunciphise umthwalo wezisebenzi ezifanele zokwakha, futhi uqinisekise ikhwalithi yephrojekthi. Ngaphezu kwalokho, ingasetshenziswa nasezimweni ezithile ezinzima. Qeda ngempumelelo imisebenzi yokwakha emvelweni.

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Ukuhlanganiswa kokhonkolo kunganciphisa kakhulu isikhathi sokulungiswa kwesondlo ngemuva kokwakhiwa kwephrojekthi, ngejubane elikhulu i-demoudy yephrojekthi, okwenza ukuthi ifomu liphenduke ngokushesha, futhi linomphumela obalulekile wejubane ekuqiniseni ukungezwani okulandelayo nokugunda, okwenza isikhathi sonke sephrojekthi. ifinyeze kakhulu. Ngasikhathi sinye, ukungezwa kweI-Concrete AdmixturesFuthi ingathuthukisa ngempumelelo ikhwalithi ephelele yephrojekthi yokhonkolo, futhi ithuthukise amandla ayo, ukuqina, ukumelana kwesithwathwa kanye nokungaphelele.

 

Ngaphezu kwalokho, ingathuthukisa kakhulu i-shrinkage kakhonkolo lapho isomile ngokwanele kanye nezakhiwo zokugeleza ngaphambi kokuqina. Uma ukuhlangana kokhonkolo kusetshenziswa kahle kuphrojekthi yokwakha, ukuhlanganiswa ngokuvamile ngeke kube nomthelela kwikhwalithi yokwakha ukhonkolo, futhi kunganciphisa kakhulu ukusetshenziswa kukakhonkolo kanye nezinto ezahlukahlukene ezishubile ngaphansi kwesisekelo sokusetshenziswa kwesayensi, futhi Ukuncishiswa kokusetshenziswa kwezinto ezisuselwa ku-monce-based auxiliary akugcini nje ngokugcina izinsiza zenhlalo, kepha futhi kusindisa izindleko zokwakha zenqubo, futhi kunomthelela omuhle ezinyathelweni ezilandelayo. Inqubo yokuhlasela kanye ne-trawling ihlinzeka lula.


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