Idethi yokuthunyelwe:24,Oct,2022

 

Kuvamile ukuthi isihlabathi namatshe abe nodaka oluthile, futhi ngeke kube nomthelela omkhulu ekusebenzeni kukakhonkolo.Kodwa-ke, udaka oluningi luzophazamisa kakhulu uketshezi, ipulasitiki nokuqina kukakhonkolo, futhi amandla kakhonkolo nawo azoncishiswa.Udaka esihlabathini kanye netshe elisetshenziswa kwezinye izindawo liphakeme lifinyelela ku-7% noma ngisho nangaphezu kuka-10%.Ngemuva kokungeza ama-admixtures, ukhonkolo awukwazi ukufeza ukusebenza okufanele.Ukhonkolo awunawo ngisho uketshezi, futhi ngisho ne-fluidity encane izonyamalala ngesikhathi esifushane.Indlela eyinhloko yalesi simo esingenhla ukuthi inhlabathi esihlabathini ine-adsorption ephezulu kakhulu, futhi iningi le-admixtures lizokhangiswa yinhlabathi ngemva kokuxuba, futhi izingxube ezisele azanele ukukhangisa nokusabalalisa izinhlayiya zikasimende.Njengamanje, izingxube ze-polycarboxylate zisetshenziswe kabanzi.Ngenxa yobuncane balo mkhiqizo, lesi simo esingenhla sibucayi kakhulu uma sisetshenziselwa ukwenza ukhonkolo ngokuqukethwe okuphezulu kodaka nesihlabathi.

Njengamanje, kwenziwa ucwaningo olunzulu mayelana nezinyathelo zokuxazulula ukumelana nodaka lukakhonkolo.Izixazululo eziyinhloko yilezi:

(1) Khulisa umthamo wezingxube.Nakuba le ndlela inemiphumela esobala, ngoba umthamo we-admixtures kukhonkolo udinga ukuphindwe kabili noma ngaphezulu, izindleko zokukhiqiza ukhonkolo ziyanda.Kunzima kubakhiqizi ukwamukela.

(2) Ukuguqulwa kwamakhemikhali kwe-admixture esetshenziselwa ukuguqula isakhiwo se-molecular of the admixture.Kunemibiko eminingi ehlobene, kodwa umbhali uyaqonda ukuthi lezi zithako ezisanda kwakhiwa zokulwa nodaka zisenakho ukujwayela enhlabathini eyahlukene.

(3) Ukuthuthukisa uhlobo olusha lwenhlanganisela esebenzayo yokulwa nodaka oluzosetshenziswa ngokuhambisana nezixube ezisetshenziswa kakhulu.Sibone i-ejenti elwa nodaka engenisiwe e-Chongqing nase-Beijing.Umkhiqizo unomthamo omkhulu kanye nenani eliphakeme.Kunzima futhi kumabhizinisi ajwayelekile okhonkolo ukuthi akwamukele.Ngaphezu kwalokho, lo mkhiqizo ubuye ube nenkinga yokuzivumelanisa nenhlabathi ehlukene.

 

Izinyathelo ezilandelayo zokulwa nodaka nazo ziyatholakala ukuze kusetshenziswe inkomba yocwaningo:

1.I-admixtures evame ukusetshenziswa ixubene nezinto ezine-dispersibility ethile kanye nentengo ephansi yokwandisa izingxenye ezingakhangiswa yinhlabathi, enomphumela othile.

2.Ukufaka inani elithile le-polymer enesisindo esiphansi se-molecular-encibilika emanzini ku-admixture kunomphumela othile.

3.Sebenzisa ama-dispersants, ama-retarders kanye nezinciphisi zamanzi ezijwayele ukopha.