Idethi Yokuthumela: 18, Nov, 2024
4. Inkinga yokuthuthukiswa kancane kwamandla okuqala kakhonkolo
Ngokuthuthuka okusheshayo kwezimboni zokuhlala ezweni lami, isidingo sezingxenye zikakhonkolo we-precast siyakhula. Ngakho-ke, ukuthuthukisa izinga lokuthuthukiswa kwamandla okuqala kakhonkolo kungasheshisa izinga lokushintshwa kwesikhunta, ngaleyo ndlela kuthuthukise ukusebenza kahle kokukhiqizwa kwezingxenye zekhonkrithi ye-precast. Ukusetshenziswa kwe-PCE ukuze kulungiswe izingxenye zekhonkrithi ze-precast kungathuthukisa izinga lokubukeka kwezingxenye, futhi ngenxa yokuhlakazeka okuhle kakhulu kwe-PCE, ukusetshenziswa kwayo ekukhiqizeni izingxenye ze-precast zamandla aphezulu kunganikeza ukudlala okugcwele ezinzuzweni zayo ezimbili ekusebenzeni kanye nezindleko. , ngakho inamathemba abanzi okusebenza.
5. Inkinga yokuqukethwe komoya okukhulu kuzingxube zekhonkrithi ne-PCE
Njenge-surfactant, amaketanga aseceleni e-hydrophilic esakhiweni samangqamuzana e-PCE anokungena komoya okunamandla kakhulu. Okusho ukuthi, i-PCE izonciphisa ukungezwani okungaphezulu kwamanzi okuxuba, okwenza kube lula ukhonkolo ukwethula nokwenza ama-bubbles osayizi ongalingani futhi kulula ukuwahlanganisa ngesikhathi sokuxuba. Uma lawa ma-bubbles engakwazi ukukhishwa ngesikhathi, azothinta ikhwalithi yokubukeka kwekhonkrithi futhi abangele nomonakalo emandleni okhonkolo, ngakho-ke kufanele anikezwe ukunakwa okwanele.
6. Inkinga yokungasebenzeki kahle kukakhonkolo omusha
Izakhiwo zokusebenza zikakhonkolo omusha zihlanganisa uketshezi, ukuhlangana kanye nokugcinwa kwamanzi. I-Fluidity isho ikhono lengxube kakhonkolo ukuthi igeleze futhi igcwalise ifomu ngokulinganayo nangokuminyene ngaphansi kwesenzo sesisindo sayo noma ukudlidliza komshini. Ukubumbana kubhekisela ekuhlanganiseni phakathi kwezingxenye zengxube yekhonkrithi, engagwema ukuhlukaniswa nokuhlukaniswa phakathi nenqubo yokwakha. Ukugcinwa kwamanzi kubhekisela ekhonweni lengxube yekhonkrithi yokugcina amanzi, okungagwema ukopha ngesikhathi sokwakha. Ekulungiseleleni ukhonkolo wangempela, ngakolunye uhlangothi, ukhonkolo olunamandla aphansi, inani lezinto ze-cementitious aliphezulu futhi isilinganiso se-water-binder sikhulu. Ukwengeza, ukugredwa okuhlanganisiwe kukakhonkolo onjalo kuvame ukuba kubi. Ukusetshenziswa kwe-PCE ngezinga eliphezulu lokunciphisa amanzi ukulungiselela ukhonkolo olunjalo kujwayele ukuhlukaniswa nokuphuma kwegazi kwengxube; ngakolunye uhlangothi, ukhonkolo oqinile olungiselelwe ngokusebenzisa usimende onamandla aphansi, ukwandisa inani lezinto zikasimende kanye nokunciphisa isilinganiso se-water-binder sithambekele ku-viscosity ephezulu yekhonkrithi, i-fluidity empofu yengxube kanye nesilinganiso sokuhamba kancane. Ngakho-ke, i-viscosity ephansi kakhulu noma ephezulu kakhulu yengxube kakhonkolo izoholela ekusebenzeni okungalungile kokukhonkolo, ukunciphisa izinga lokwakha, futhi kube okungathandeki kakhulu kuzakhiwo zemishini nokuqina kukakhonkolo.
Isikhathi sokuthumela: Nov-19-2024
