Naphthalene Superplasticizer

i-naphthalene superplasticizer yi-superplasticizer eyenziwe ngemichiza engeyiyo-moya enefuthe elinamandla lokusasazeka kumasuntswana esamente kunye nokusetyenziswa kakuhle kokulungiselela ikhonkrithi equkuqelayo., cast-in-situ ikhonkrithi kunye namalungu precast ngamandla kwangethuba kunye neemfuno amandla aphezulu. Inokuphucula ngokubanzi iipropati zekhonkrithi kwaye isetyenziswa ngokubanzi kwiindlela ezihamba phambili, iibhulorho, amadama, amazibuko, itonela, amandla ombane, ulondolozo lwamanzi kwakunye nolwakhiwo lwemizi-mveliso nolwasekuhlaleni.

I i-naphthalene superplasticizer yimveliso ye-condensation ye-sodium naphthalene sulfonate formaldehyde condensate (FDN-B). Ineempawu ezizinzileyo zomzimba kunye neekhemikhali, ezifana nogwebu oluphantsi, izinga eliphezulu lokunciphisa amanzi, okuqaphelekayo ukomeleza amandla kwangethuba kunye nokuziqhelanisa ngamandla nesamente. Ingasetyenziswa kwiikhonkrithi ezahlukeneyo kunye nedosi ephantsi kwaye kulula ukuyisebenzisa.

Xa kuthelekiswa ne-polycarboxylate ethers, i-poly-naphthalene sulfonate (PNS) kunye ne-lignosulfonate (LS) Zii-anionic polyelectrolyte ezinyibilikayo emanzini ezinokuthi zongezwe kwi-grout entsha yezinto ezisekwe kwisamente ukunyusa amanzi.. Banokuthintela ukudityaniswa kwamasuntswana esamente kunye nokukhuthaza ukuhanjiswa kwe-C4A3S kwi-ettringite kumdaka omtsha..

Olu pho nonongo lwalukuphanda imiphumo ye-naphthalene kunye ne-PCE esekelwe kwi-superplasticizers ekubekeni ixesha, ubumanzi, kunye namandla acinezelayo odaka lwe-C4A3S CSA oluvulwe yimolarity eyahlukileyo ye-NaOH activator. Ngaphaya koko, imorphology, isixa, kunye ne-microstructure yeemveliso ze-hydration zaphononongwa yi-XRD, Thermogravimetric (TG), kunye nokuskena i-electron microscopy (YILUPHI), ngokulandelelanayo.

Iziphumo zibonise ukuba i-superplasticizer esekwe kwi-naphthalene yandise kakhulu ukusetwa kokuqala kunye nokusetwa kokugqibela kweepastes ze-CSA ngeedosi ezahlukeneyo.. I-superplasticizer esekwe kwinaphthalene ikakhulu ibhengezwa kumphezulu wamasuntswana esamente kwaye ikhuphe amanzi asimahla., ngoko ixesha lokumisela landiswa phantsi kwe-electrostatic repulsion. I-naphthalene-basedsuperplasticizer nayo yakhuthaza ukuhanjiswa kwe-C4A3S equlethe i-ettringite ukuya kwinqanaba eliphezulu., eyandisa amandla acinezelayo odaka lweCSA.