Udaka oluxutshwe okomile uhlobo lwenhlamvana kanye nempushana exutshwa ngokufanayo nezithasiselo njengezihlanganisi ezinhle nezibophezelo ezingaphili, izinto ezigcina amanzi nokujiya, ama-ejenti anciphisa amanzi, ama-anti-cracking, nama-ejenti aqeda ugwebu ngengxenye ethile ngemva kwalokho. ukomisa nokuhlunga.Ingxube ithuthelwa endaweni yokwakha ngethangi elikhethekile noma isikhwama sephepha esingangeni manzi esivaliwe, bese sixutshwa namanzi.Ngaphezu kukasimende nesihlabathi, udaka olusetshenziswa kakhulu oluxutshwe okomile luhlakazeka futhi luhlakazeka kabusha lwepolymer powder.Ngenxa yentengo yayo ephezulu kanye nethonya elikhulu ekusebenzeni kodaka, kugxilwe kuyo.Leli phepha lidingida umphumela wempushana ye-polymer ehlakazekayo ezimpahleni zodaka.
1 Indlela yokuhlola
Ukuze kutholwe umthelela wokuqukethwe kwempushana ye-polymer ehlakazekayo ezakhiweni zodaka lwe-polymer, amaqembu amaningana amafomula aklanywa ngendlela yokuhlola ye-orthogonal futhi ahlolwa ngokwendlela ye-“Quality Inspection Standard of Polymer Mortar for External Wall Thermal Insulation” DBJOI- 63-2002.Isetshenziselwa ukunquma umthelela wodaka lwe-polymer kumandla ebhondi eqinile, amandla ebhondi ecindezelwayo ye-shear yesisekelo sikakhonkolo namandla acindezelayo, amandla aguquguqukayo kanye nesilinganiso sokuminyanisa ukuze sigoqeke se-polymer mortar uqobo.
Izinto zokusetshenziswa eziyinhloko ziyi-P-04 2.5 usimende ojwayelekile wesilika;I-RE5044 kanye ne-R1551Z impushana ye-latex ehlakazeka kabusha futhi ehlakazeka;70-140 mesh isihlabathi se-quartz;ezinye izithasiselo.
2 Ithonya lempushana ye-polymer ehlakazekayo ezindaweni zodaka lwe-polymer
2.1 Izakhiwo zokubopha okuqinile nokucindezelwa kwe-shear
Ngokukhula kokuqukethwe kwempushana ye-polymer ehlakazekayo, amandla ebhondi eqinile namandla ebhondi ecindezelwayo ye-shear yodaka lwe-polymer nodaka lukasimende nawo anda, futhi amajika amahlanu akhuphuka ngokuhambisana nokwanda kosimende.Isilinganiso esilinganiselwe sephuzu ngalinye elifanele singahlaziya ngobuningi izinga lomthelela wokuqukethwe kwe-polymer powder ehlakazeka kabusha ekusebenzeni kodaka lukasimende.Amandla okugunda acindezelayo akhombisa ukuthambekela kokukhula okuqondile.Umkhuba usuwonke ukuthi amandla ebhondi eqinile akhuphuka ngo-0.2 MPa futhi amandla ebhondi ecindezelwayo eshear enyuka ngo-0.45 MPa kukho konke ukukhuphuka okungu-1% kumpushana we-polymer ehlakazekayo.
2.2 Izici zokuminyanisa/ukugoqa zodaka ngokwalo
Ngokukhula kokuqukethwe kwempushana ye-polymer ehlakazeka kabusha, amandla acindezelayo namandla aguquguqukayo odaka lwe-polymer ngokwawo ancipha, okubonisa ukuthi i-polymer inomphumela ovimbela ukugeleza kukasimende.Umthelela wokuqukethwe kwempuphu ye-polymer ehlakazekayo esilinganisweni sokucindezelwa kodaka lwe-polymer ngokwayo uboniswa kuMfanekiso 4. , ngokwanda kokuqukethwe kwe-latex powder ehlakazeka kabusha, isilinganiso sokucindezela kodaka lwe-polymer ngokwalo siyancipha, okubonisa ukuthi i-polymer ithuthukisa ukuqina kwe-polymer. udaka.Isilinganiso esilinganiselwe sephuzu ngalinye elifanele singahlaziya ngokwesilinganiso izinga lethonya lokuqukethwe kwempushana ye-polymer ehlakazeka kabusha ekusebenzeni kodaka lwe-polymer ngokwalo.Ngokukhula kokuqukethwe kwempushana ye-polymer ehlakazeka kabusha, amandla acindezelayo, amandla aguquguqukayo kanye nesilinganiso sokuhlehlisa sibonisa inkambiso enciphayo elandelanayo.Kuwo wonke ukwanda kwe-1% kwe-polymer powder ehlakazekayo, amandla okucindezela ancipha ngo-1.21 MPa, amandla okuguquguquka ayancipha ngo-0.14 MPa, futhi isilinganiso sokucindezela-ukugoqa sincipha ngo-0.18.Kungabonakala futhi ukuthi ukuguquguquka kodaka kuthuthukiswa ngenxa yokwanda kwenani le-polymer powder ehlakazekayo.
2.3 Ukuhlaziywa kobuningi bomphumela wesilinganiso se-lime-sand kuzakhiwo zodaka lwe-polymer
Ngodaka lwe-polymer, ukusebenzisana phakathi kwesilinganiso se-lime-sand kanye nokuqukethwe kwe-polymer ephindwe kabusha kwe-polymer kuthinta ngokuqondile ukusebenza kodaka, ngakho-ke kuyadingeka ukuxoxa ngomphumela wesilinganiso se-lime-sand ngokwehlukana.Ngokwendlela yokucubungula idatha yokuhlolwa kwe-orthogonal, izilinganiso ezihlukene ze-lime-sand zisetshenziswa njengezici eziguquguqukayo, futhi okuqukethwe kwempushana ye-polymer ehlakazeka kabusha ehlobene kusetshenziswa njengesici esingaguquki ukudweba umdwebo womthamo wethonya lezinguquko zesilinganiso se-lime-sand osikeni.Kungabonakala ukuthi, Ngokukhula kwesilinganiso se-lime-sand, ukusebenza kodaka lwe-polymer odakeni lukasimende kanye nokusebenza kodaka lwe-polymer ngokwalo kukhombisa ukwehla komugqa.Amandla ebhondi ancishiswa ngo-0.12MPa, amandla esibopho se-shear esicindezelayo ancishiswa ngo-0.37MPa, amandla okucindezela odaka lwe-polymer ngokwawo ancishiswa ngo-4.14MPa, amandla okuguquguquka ancishiswa ngo-0.72MPa, kanye nokucindezela-ukugoqa. isilinganiso sehliswe ngo-0.270
3 Umthelela wempushana ye-latex ehlakazeka kabusha equkethe u-f ekubopheni okuqinile kodaka lwe-polymer kanye nebhodi le-polystyrene elinegwebu le-EPS Ukuxhunywa kodaka lwe-polymer odakeni lukasimende kanye nokuhlangana kwebhodi le-EPS okuhlongozwe yi-DB JOI-63-2002 okujwayelekile Kuyashayisana.
Owokuqala udinga ukuqina okuphezulu kodaka lwe-polymer, kuyilapho lokhu kudinga ukuguquguquka okuphezulu, kodwa uma kucatshangelwa ukuthi iphrojekthi yangaphandle yokushisa ukushisa idinga ukunamathela kuzo zombili izindonga eziqinile namabhodi e-EPS aguquguqukayo, ngesikhathi esifanayo, kuyadingeka ukuqinisekisa ukuthi izindleko hhayi phezulu kakhulu.Ngakho-ke, umbhali ubala umphumela wokuqukethwe kwe-polymer powder ehlakazekayo ezintweni ezivumelana nezimo zodaka lwe-polymer ngokuhlukana ukuze kugcizelele ukubaluleka kwayo.
3.1 Umthelela wohlobo lwempushana ye-polymer ehlakazekayo emandleni ebhondi ebhodi le-EPS
Izimpushana ze-latex ezihlakazeka kabusha zikhethwa ku-R5, C1, P23 yangaphandle;I-Taiwanese D2, D4 2;zasekhaya S1, S2 2, ingqikithi 7;ibhodi polystyrene ekhethiwe Beijing 18kg / EPS ibhodi.Ngokusho kwe-DBJ01-63-2002 ejwayelekile, ibhodi le-EPS linganwetshwa futhi liboshwe.Impushana ye-latex ehlakazeka kabusha ingahlangabezana nezidingo zezakhiwo ezibophayo eziqinile neziguquguqukayo zodaka lwe-polymer ngasikhathi sinye.
Isikhathi sokuthumela: Nov-01-2022