iindaba

Umhla wokuThumela:15,Julayi,2024

1. Ikhonkrithi ene-fluidity ephezulu ixhomekeke kwi-delamination kunye nokwahlula.

Kwiimeko ezininzi, i-concrete ye-high-fluidity-concrete elungiselelwe kunye ne-polycarboxylic acid-based based-agent-agent-based-agent-based-agent-ayiyi kubangela ukopha kumxube wekhonkrithi nokuba inani le-arhente yokunciphisa amanzi kunye nokusetyenziswa kwamanzi kulawulwa ngokufanelekileyo, kodwa kulula kakhulu ukwenzeka. Iziganeko zokucwangciswa kobuchule kunye nokwahlula zibonakaliswa ekuzikeni kwe-aggregate erhabaxa kunye nokudada kodaka okanye udaka olusulungekileyo. Xa olu hlobo lomxube wekhonkrithi lusetyenziselwa ukugalela, i-delamination kunye nokwahlula kubonakala ngaphandle kokungcangcazela.

Isizathu ikakhulu sibangelwa kukuhla okubukhali kwe-viscosity ye-slurry xa ubumanzi bekhonkrithi exutywe nale arhente yokunciphisa amanzi esekelwe kwi-polycarboxylic acid iphezulu. Ukudityaniswa okufanelekileyo kwamacandelo okujiya kunokusombulula le ngxaki kuphela kumlinganiselo othile, kwaye ukudityaniswa kwamacandelo okujiya kudla ngokukhokelela ekuphenduleni kokunciphisa kakhulu isiphumo sokunciphisa amanzi.

 

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2. Xa isetyenziswe ngokubambisana nezinye iintlobo zokunciphisa amanzi, akukho mphumo ophezulu.

Ngaphambili, xa ulungiselela ikhonkrithi, uhlobo lwe-agent yokupompa lunokutshintshwa ngokuthanda, kwaye iimpawu zomxube wekhonkrithi aziyi kuba zihluke kakhulu kwiziphumo zebhubhoratri, kwaye akuyi kubakho utshintsho ngokukhawuleza kwiipropati zomxube wekhonkrithi. .

Xa i-polycarboxylic acid-based-based based-reduction agents isetyenziselwa ukudibanisa kunye nezinye iintlobo ze-agent zokunciphisa amanzi, kunzima ukufumana iziphumo eziphezulu, kunye ne-solubility edibeneyo phakathi kwe-polycarboxylic acid-based-based based-agent-agent solution solutions kunye nezinye iintlobo zamanzi- Ukunciphisa izisombululo ze-arhente kubi ngokwendalo.

3. Akukho siphumo sokuguqulwa emva kokongeza amacandelo asetyenziswa ngokuqhelekileyo.

Okwangoku, kukho utyalo-mali oluncinci kuphando lwezenzululwazi kwi-polycarboxylic acid-based based-reduction agents. Kwiimeko ezininzi, injongo yophando lwezenzululwazi kuphela ukuqhubela phambili nokuphucula iplastiki yayo kunye nesiphumo sokunciphisa amanzi. Kunzima ukuyila izakhiwo zemolekyuli ngokweemfuno ezahlukeneyo zobunjineli. Uluhlu lwe-polycarboxylic acid-based based rencing agents with different retading and accelerating effects, no air-entraining or different properties-entraining properties, kunye ne-viscosities ezahlukeneyo zenziwe. Ngenxa yeyantlukwano kunye nokungazinzi kwesamente, i-admixtures, kunye nee-aggregates kwiiprojekthi, kubaluleke kakhulu ukuba abavelisi be-admixture kunye nabanikezeli badibanise kwaye baguqule iimveliso ze-polycarboxylate zokunciphisa amanzi okuxutywa ngokweemfuno zeprojekthi.

Okwangoku, amanyathelo obugcisa bokuguqulwa kwe-compound ye-agent yokunciphisa amanzi ngokusisiseko isekelwe kumanyathelo okuguqulwa kwamanzi aqhelekileyo okunciphisa amanzi afana ne-lignosulfonate series kunye ne-naphthalene series ephezulu yokunciphisa amanzi. Uvavanyo lubonakalise ukuba uhlengahlengiso oludlulileyo iindlela zobugcisa azifanelekanga ukuba zilungele i-polycarboxylic acid-based based rencing agents. Ngokomzekelo, phakathi kwamacandelo e-retardant asetyenziselwa ukuguqula i-naphthalene-based based-reduction agents, i-sodium citrate ayifanelekanga kwi-polycarboxylic acid-based based-reduction agents. Akunjalo nje ukuba ayinayo impembelelo yokunciphisa, inokukhawulezisa i-coagulation, kunye nesisombululo se-sodium citrate I-miscibility kunye ne-polycarboxylic acid-based-based-agent agents zokunciphisa amanzi nayo ihlwempu kakhulu.

Ngapha koko, uninzi lweentlobo ze-ejenti zokuthoba amagwebu, i-air-entraining agents kunye ne-thickeners azifanelekanga kwi-polycarboxylic acid-based based rencing agents. Ngokusebenzisa olu vavanyo lungasentla kunye nohlalutyo, akukho nzima ukubona ukuba ngenxa yobungcali besakhiwo semolekyuli ye-polycarboxylic acid-based based rencing agents, ngokusekelwe kubunzulu bophando lwezenzululwazi kunye nokuqokelela amava esicelo sobunjineli kweli nqanaba, impembelelo i-polycarboxylic acid i-agent yokunciphisa amanzi kwi-polycarboxylic acid-based superplasticizers ngokusebenzisa amanye amacandelo ekhemikhali Azikho iindlela ezininzi zokuguqula i-agent yokunciphisa amanzi, kwaye ngenxa yeethiyori kunye nemigangatho esekwe kwixesha elidlulileyo lokuguqulwa kwezinye iintlobo zokunciphisa amanzi. ii-agent, ukuphononongwa okunzulu kunye nophando lunokufuneka kwi-polycarboxylate-based based-reduction agents. Yenza izilungiso kunye nokongeza.

4. Ukuzinza kwentsebenzo yemveliso kubi kakhulu.

Azikho iinkampani ezininzi zekhonkrithi zokunciphisa amanzi ezinokuthi zithathwe njengeenkampani ezilungileyo zeekhemikhali. Iinkampani ezininzi zihlala kuphela kwinqanaba lokuqala lokuvelisa abaxube kunye noomatshini bokupakisha, kwaye umgangatho wemveliso ukhawulelwe ngumgangatho we-masterbatch. Ngokubhekiselele kulawulo lwemveliso, ukungazinzi komthombo kunye nomgangatho wezinto ezikrwada bekusoloko kuyeyona nto iphambili ebethelela ukusebenza kweepolycarboxylic acid-based superplasticizers.


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  • Ixesha lokuposa: Jul-15-2024