Udaka oluxubeneyo olomileyo luhlobo lwegranule kunye nomgubo oxutywe ngokulinganayo kunye nezongezo ezinje nge-aggregates entle kunye nezibophelelo ezingaphiliyo, ukugcina amanzi kunye nezixhobo ezityebisayo, ii-arhente zokunciphisa amanzi, ii-anti-cracking agents, kunye ne-agent ekhupha amagwebu ngokomlinganiselo othile emva koko. ukomisa kunye nokuhlolwa.Umxube uthuthelwa kwindawo yokwakha ngetanki ekhethekileyo okanye isikhwama sephepha esitywiniweyo esingenamanzi, kwaye sixutywe namanzi.Ukongeza kwisamente kunye nesanti, udaka olusetyenziswa kakhulu oluxubeneyo oluxubeneyo lunokuphinda luhlakazwe kwaye luphinde luphinde luphinde luphinde lwenziwe ngepolymer powder.Ngenxa yexabiso layo eliphezulu kunye nempembelelo enkulu ekusebenzeni kodaka, yinto ekugxilwe kuyo ingqalelo.Eli phepha lixoxa ngempembelelo yepolymer powder echithwayo kwiipropati zodaka.
1 Indlela yokuvavanya
Ukuze kuchongwe isiphumo somxholo wepolymer ochithakelekayo womgubo kwiipropati zodaka lwepolymer, amaqela aliqela eefomyula ayeyilwe ngendlela yovavanyo lwe-orthogonal kwaye avavanywa ngokwendlela “yoMgangatho woHlolo loMgangatho wePolymer Mortar ye-External Wall Thermal Insulation” DBJOI- 63-2002.Isetyenziselwa ukumisela impembelelo yodaka lwepolymer kumandla okuqina kwebhondi, ukomelela kwebhondi ye-shear yesiseko sekhonkrithi kunye namandla acinezelayo, amandla okuguquguquka kunye nomlinganiselo wokunyanzeliswa kodaka lwepolymer ngokwayo.
Ezona zixhobo ziphambili zi-P-04 2.5 zesamente ye-silica eqhelekileyo;I-RE5044 kunye ne-R1551Z ephinda iphinde iphinde iphinde iphinde iphinde iphinde ibe ngumgubo we-latex;I-70-140 ye-mesh ye-quartz isanti;ezinye izongezo.
2 Impembelelo yepolymer powder ehlakazekayo kwiipropati ze-polymer mortar
2.1 I-tensive bonding kunye ne-compression shear bonding iimpawu
Ngokunyuka komxholo womgubo wepolymer ohlakazekayo, amandla okuqina kwebhondi kunye namandla acinezelayo ebhondi yokucheba yodaka lwepolymer kunye nodaka lwesamente nawo anda, kwaye amagophe amahlanu ahambela phezulu ngokunxusene nokunyuka komxholo wesamente.Umyinge olinganisiweyo wenqaku ngalinye elichaphazelekayo unokuhlalutya ngokomlinganiselo umlinganiselo wempembelelo yomxholo wepolymer powder edispersible ekusebenzeni kodaka lwesamente.Amandla okucheba acinezelayo abonisa indlela yokukhula ehambelanayo.Isiqhelo esipheleleyo kukuba amandla e-tensile bond anyuka nge-0.2 MPa kunye nokuqina kokuqina kwebhondi ye-shear kwandisa nge-0.45 MPa yonke i-1% yokunyuka kwi-polymer powder.
2.2 Iimpawu zokucinezelwa/ukusongwa kodaka ngokwalo
Ngokunyuka komxholo wepolymer owenziwe ngokutsha, amandla oxinzelelo kunye namandla okuguquguquka kwe-polymer mortar ngokwawo anciphile, ebonisa ukuba i-polymer inefuthe elithintelayo kwi-hydration ye-samente.Impembelelo yomxholo wepolymer echithwayo kwi-compression ratio ye-polymer mortar ngokwayo iboniswe kwi-Figure 4., kunye nokunyuka komxholo we-latex owenziwe ngokutsha, umlinganiselo wokunyanzeliswa kodaka lwepolymer ngokwawo uyancipha, obonisa ukuba i-polymer iphucula ukuqina kwe-polymer. udaka.Umyinge olinganisiweyo wenqaku ngalinye elichaphazelekayo unokuhlalutya ngokobungakanani iqondo lempembelelo yomxholo wepolymer enokuphinda ihlakazeke ekusebenzeni kodaka lwepolymer ngokwayo.Ngokunyuka komxholo wepolymer owenziwe ngokutsha, amandla oxinzelelo, amandla okuguquguquka kunye ne-Indentation ratio ibonisa umgca wokunciphisa umgca.Ngayo yonke i-1% yokunyuka kwe-polymer powder echithwayo, amandla oxinzelelo ayancipha nge-1.21 MPa, amandla e-flexural ayancipha nge-0.14 MPa, kwaye i-compression-to-fold ratio iyancipha nge-0.18.Kwakhona kunokubonwa ukuba ukuguquguquka komdaka kuphuculwe ngenxa yokunyuka kwexabiso lepolymer powder.
2.3 Uhlalutyo lobungakanani besiphumo somlinganiselo wesanti yekalika kwiipropati zodaka lwepolymer
Kwi-polymer mortar, intsebenziswano phakathi kwe-lime-sand ratio kunye ne-redispersible polymer powder content ichaphazela ngokuthe ngqo ukusebenza kodaka, ngoko ke kuyimfuneko ukuxoxa ngomphumo we-lime-sand ratio ngokwahlukileyo.Ngokwendlela yokuvavanya idatha ye-orthogonal, imilinganiselo eyahlukeneyo ye-lime-isand isetyenziswa njengezinto eziguquguqukayo, kwaye umxholo wepolymer odibeneyo odibeneyo usetyenziswa njengento eqhubekayo yokuzoba umzobo wobungakanani bempembelelo yenguqu ye-lime-sand kwi-mortar.Kuyabonakala ukuba, Ngokunyuka komlinganiselo we-lime-sand, ukusebenza kodaka lwe-polymer kwi-samente yodaka kunye nokusebenza kodaka lwe-polymer ngokwalo kubonisa umzila wokunciphisa umgca.Amandla ebhondi ancitshiswe ngu-0.12MPa, amandla e-shear bond ancitshiswe ngu-0.37MPa, amandla oxinzelelo lwe-polymer mortar ngokwawo ancitshiswa ngu-4.14MPa, amandla okuguquguquka ayancipha nge-0.72MPa, kunye nokunyanzeliswa kwe-folding. umlinganiselo uncitshiswe ngo-0.270
3 Isiphumo somgubo welatex odispersible equlathe f kwi tensile bonding yodaka lwepolymer kunye ne EPS foamed polystyrene board Ukudityaniswa kodaka lwepolymer kudaka lwesamente kunye nokudityaniswa kwebhodi ye-EPS endululwe nguDB JOI-63-2002 umgangatho kuyangqubana.
Eyangaphambili idinga ukuqina okuphezulu kodaka lwe-polymer, ngelixa lo mva lufuna ukuguquguquka okuphezulu, kodwa ngokuqwalasela ukuba iprojekthi yokufakelwa kwe-thermal yangaphandle idinga ukunamathela kuzo zombini iindonga eziqinileyo kunye neebhodi ze-EPS eziguquguqukayo, ngexesha elifanayo, kuyimfuneko ukuqinisekisa ukuba ixabiso hayi phezulu kakhulu.Ngoko ke, umbhali udwelisa umphumo we-disperible polymer content powder kwiipropathi eziguquguqukayo zokubambisana kwe-polymer mortar ngokwahlukileyo ukugxininisa ukubaluleka kwayo.
3.1 Impembelelo yohlobo lwepolymer echithwayo yomgubo kumandla okudibanisa kwibhodi ye-EPS
I-latex powders ephinda isetyenziswe kwakhona ikhethwe kwi-R5 yangaphandle, i-C1, i-P23;I-Taiwanese D2, i-D4 2;yasekhaya S1, S2 2, iyonke 7;ibhodi polystyrene ekhethiweyo Beijing 18kg / ibhodi EPS.Ngokomgangatho we-DBJ01-63-2002, ibhodi ye-EPS inokolulwa kwaye iboshwe.I-latex powder ekwazi ukuphinda ikwazi ukuhlangabezana neemfuno zeempawu eziqinileyo kunye neziguquguqukayo zokudibanisa i-polymer mortar ngaxeshanye.
Ixesha lokuposa: Nov-01-2022