Imixube yeekhemikhali zodaka kunye nekhonkrithi zineemeko ezifanayo kunye nomahluko. Oku kungenxa yokusetyenziswa okwahlukeneyo kodaka kunye nekhonkrithi. Ikhonkrithi isetyenziswa ikakhulu njengesixhobo solwakhiwo, ngelixa udaka luyimathiriyeli yokugqibezela kunye nokudibanisa. Udibaniso lweekhemikhali zodaka lunokwahlulwa ngokwemichiza kunye nokusetyenziswa okuphambili.
Ukwahlula ngokwemichiza
(1) Izongezo zodaka lwetyuwa ezingaphiliyo: ezifana ne-ejenti yamandla okuqala, i-agent ye-antifreeze, i-accelerator, i-ejenti yokwandisa, i-ejenti yombala, i-arhente yokukhusela amanzi, njl.
(2) I-polymer surfactants: Olu hlobo lwe-admixture luyi-surfactants, njenge-plasticizers/water reducers, i-shrinkage reducers, i-defoamers, i-air-entraining agents, i-emulsifiers, njl.;
(3) Iipolymers zeresin: ezifana ne-emulsion ye-polymer, i-polymer powders ekwazi ukuphinda iphindwe, i-cellulose ethers, imathiriyeli ye-polymer enyibilikayo emanzini, njl.;
Ihlelwa ngokomsebenzi ongundoqo
(1) I-Admixtures yokuphucula ukusebenza (iipropati ze-rheological) zodaka olutsha, kubandakanywa i-plasticizers (i-water reducers), i-air-entraining agents, i-agent yokugcina amanzi, kunye ne-tackifiers (i-viscosity regulators);
(2) I-Admixtures yokulungelelanisa ixesha lokumisela kunye nokusebenza nzima kodaka, kubandakanywa ii-retarders, i-super retarders, i-accelerators, ii-arhente zamandla okuqala, njl.;
(3) Imixube yokuphucula ukuqina kodaka, i-air-entraining agents, ii-agent zokungangeni kwamanzi, i-rust inhibitors, i-fungicides, i-alkali-aggregate reaction inhibitors;
(4) I-Admixtures, ii-agent zokwandisa kunye nabanciphisi be-shrinkage ukuphucula ukuzinza komthamo wodaka;
(5) I-Admixtures yokuphucula iimpawu zemishini yodaka, i-polymer emulsion, i-polymer powder edispersible, i-cellulose ether, njl.;
(6) Imixube, imibala, izinto zokuhombisa umphezulu, kunye nezikhanyisi ukuphucula iimpawu zokuhombisa udaka;
(7) Imixube yokwakhiwa phantsi kweemeko ezizodwa, i-antifreeze, i-self-leveling mortar admixtures, njl.;
(8) Ezinye, njengezibulali-ntsholongwane zokungunda, imicu, njl.njl.;
Umahluko obalulekileyo phakathi kwezixhobo zodaka kunye nezixhobo eziphathekayo kukuba udaka lusetyenziswa njengento yokupakisha kunye nokudibanisa, kwaye ngokuqhelekileyo sisakhiwo esincinci xa sisetyenziswa, ngelixa i-concrete isetyenziswa kakhulu njengezinto zokwakha, kwaye isixa sikhulu. Ke ngoko, iimfuno zokusetyenzwa kolwakhiwo lwekhonkrithi yentengiso ikakhulu uzinzo, ulwelo kunye namandla okugcina amanzi. Iimfuno eziphambili zokusetyenziswa komdaka kukugcinwa kakuhle kwamanzi, ukubumbana kunye ne-thixotropy.
Ixesha lokuposa: Mar-07-2023