Omnye womahluko omkhulu phakathi kodaka oluxutywe nodaka lwendabuko kukuba udaka oluxutywe nodaka luguqulwa ngobuninzi bezongezo zeekhemikhali. Ukongeza isongezo esinye kudaka oluxutywe nodaka oluxutywe nodaka kuthiwa yi-primary modification, ukongeza izongezo ezimbini okanye ngaphezulu kuthiwa yi-secondary modration. Umgangatho wodaka oluxutywe nodaka oluxutywe nodaka uxhomekeke ekukhetheni ngokuchanekileyo kwezakhi kunye nokulungelelaniswa kunye nokuhambelana kwezakhi ezahlukeneyo. Ngenxa yokuba izongezo zeekhemikhali zibiza kakhulu, kwaye zinempembelelo enkulu ekusebenzeni kodaka oluxutywe nodaka oluxutywe nodaka. Ke ngoko, xa ukhetha izongezo, ubungakanani bezongezo kufuneka bubekwe phambili. Oku kulandelayo sisingeniso esifutshane kwindlela yokukhetha i-chemical additive cellulose ether.
I-Cellulose ether ikwabizwa ngokuba yi-rheology modifier, umxube osetyenziselwa ukulungisa iipropati ze-rheological ze-mortar esandul' ukuxutywa, kwaye isetyenziswa phantse kuzo zonke iintlobo ze-mortar. Ezi mpawu zilandelayo kufuneka ziqwalaselwe xa ukhetha uhlobo lwayo kunye nomthamo wayo:
(1) Ukugcinwa kwamanzi kumaqondo obushushu ahlukeneyo;
(2) Isiphumo sokutyeba, ukuxinana;
(3) Ubudlelwane phakathi kokungaguquguquki kunye nobushushu, kunye nempembelelo ekungaguquguquki xa kukho i-electrolyte;
(4) Uhlobo kunye nobungakanani bokufakelwa kwe-ether;
(5) Ukuphuculwa kwe-thixotropy yesamente kunye nokukwazi ukuyibeka kwindawo ethile (oku kuyimfuneko kwisamente epeyintwe kwiindawo ezithe nkqo);
(6) Isantya sokuchitha, iimeko kunye nokuphelela kokuchithakala.
Ukongeza ekongezeni i-cellulose ether (efana ne-methyl cellulose ether) kwi-dry powder mortar, i-polyvinyl acid vinyl ester nayo ingongezwa, oko kukuthi, utshintsho lwesibini. Izibopheleli ezingaphiliyo (isamente, i-gypsum) kwi-mortar zinokuqinisekisa amandla aphezulu okuxinzelela, kodwa azinampembelelo ingako kumandla okutyhafa kunye namandla okugoba. I-Polyvinyl acetate yakha ifilimu elastiki ngaphakathi kwee-pores zelitye lesamente, ivumela i-mortar ukuba imelane nemithwalo ephezulu yokuguquguquka kunye nokuphucula ukumelana nokuguguleka. Ukuziqhelanisa kuye kwabonisa ukuba ukongeza amanani ahlukeneyo e-methyl cellulose ether kunye ne-polyvinyl acid vinyl ester kwi-dry powder mortar kunokulungiselela i-thin-layer smearing plate bonding mortar, i-plastering mortar, i-decoration painting mortar, kunye ne-masonry mortar yeebhloko zekhonkrithi ezivuthisiweyo kunye ne-self-leveling mortar yokugalela imigangatho, njl. Ukuxuba ezi zimbini akunakuphucula kuphela umgangatho we-mortar, kodwa kukwaphucula kakhulu ukusebenza kakuhle kokwakha.
Kwindlela yokusebenza, ukuze kuphuculwe ukusebenza ngokubanzi, kuyimfuneko ukusebenzisa izongezo ezininzi ngokudibeneyo. Kukho umlinganiselo ofanelekileyo wokufanisa phakathi kwezongezo. Logama nje uluhlu lwedosi kunye nomlinganiselo zifanelekile, zinokuphucula ukusebenza kwe-mortar kwiinkalo ezahlukeneyo. Nangona kunjalo, xa zisetyenziswa zodwa, isiphumo sokuguqulwa kwi-mortar silinganiselwe, kwaye ngamanye amaxesha nemiphumo emibi, njengokongeza i-cellulose yodwa, ngelixa kwandiswa ukuhambelana kwe-mortar kunye nokunciphisa izinga lokuhlukanisa, kwandisa kakhulu ukusetyenziswa kwamanzi kwe-mortar kwaye kuyigcine ngaphakathi kwe-slurry, okukhokelela ekunciphiseni okukhulu kwamandla okuxinzelela; Xa ixutywe ne-air-entraining agent, nangona inqanaba lokwahlulwa kwe-mortar linokuncipha kakhulu, kwaye ukusetyenziswa kwamanzi nako kuncitshiswa kakhulu, kodwa amandla okuxinzelela e-mortar aya kuncipha ngenxa yeebhamuza zomoya ezininzi. Ukuze kuphuculwe ukusebenza kwe-mortar ye-masonry kakhulu, kwaye kwangaxeshanye kuphephe ukonakalisa ezinye iipropati ze-mortar, ukuhambelana, ukubekwa kunye namandla e-mortar ye-masonry kufuneka kuhlangabezane neemfuno zeprojekthi kunye neenkcukacha zobugcisa ezifanelekileyo. Kwangaxeshanye, akukho ntlama yelayimu esetyenziswayo, ukonga. Kwisamente, ukhuseleko lokusingqongileyo, njl.njl., kuyimfuneko ukuthatha amanyathelo apheleleyo, ukuphuhlisa nokusebenzisa umxube odibeneyo ngokwembono yokunciphisa amanzi, ukwanda kwe-viscosity, ukugcinwa kwamanzi kunye nokuqina, kunye nokufakwa kweplastiki emoyeni.
Ixesha lokuthumela: Meyi-08-2023