Mtondo wosakanizika ndi mtundu wa granule ndi ufa womwe umasakanizidwa mofanana ndi zowonjezera monga zophatikizira zabwino ndi zomangira, zosunga madzi ndi kukhuthala, zochepetsera madzi, anti-cracking agents, ndi zochotsa thovu mugawo lina pambuyo pake. kuyanika ndi kuwunika.Kusakaniza kumatengedwera kumalo omanga ndi tanker yapadera kapena thumba la pepala losindikizidwa lopanda madzi, ndiyeno losakanizidwa ndi madzi.Kuphatikiza pa simenti ndi mchenga, matope owuma omwe amagwiritsidwa ntchito kwambiri ndi opangidwanso komanso opangidwanso ndi polima ufa.Chifukwa cha mtengo wake wokwera komanso chikoka chachikulu pakuchita matope, ndiye chidwi chake.Pepalali likufotokoza momwe dispersible polima ufa pa katundu matope.
1 Njira yoyesera
Pofuna kudziwa zotsatira za dispersible polima ufa zili pa katundu wa polima matope, magulu angapo a mafomu anapangidwa ndi orthogonal mayeso njira ndi kuyesedwa malinga ndi njira ya "Quality Inspection Standard of Polima Mortar kwa Kunja Wall Thermal Insulation" DBJOI- 63-2002.Amagwiritsidwa ntchito kudziwa mphamvu ya matope a polima pamphamvu yomangira yomangirira, kulimba kwa kukameta ubweya wa konkriti ndi mphamvu yopondereza, mphamvu yosunthika komanso chiŵerengero cha matope a polima pawokha.
Zida zazikulu zopangira ndi P-04 2.5 simenti wamba wamba;RE5044 ndi R1551Z ufa wogawanikanso komanso wopangidwanso ndi latex;70-140 mesh quartz mchenga;zina zowonjezera.
2 Chikoka cha dispersible polima ufa pa katundu wa polima matope
2.1 Kumangirira kolimba komanso kukameta ubweya wa ubweya
Ndi kuchuluka kwa ufa wa polima wotayika, mphamvu yomangira yomangira ndi kumeta ubweya wa matope a polima ndi matope a simenti nawonso adakula, ndipo mapindikidwe asanuwo adakwera molingana ndi kuchuluka kwa simenti.Kulemera kwapakati pa mfundo iliyonse yoyenera kungathe kusanthula kuchuluka kwa chikoka cha zomwe zili ndi ufa wa polima wopangidwanso pa ntchito ya matope a simenti.Mphamvu ya kukameta ubweya imawonetsa kukula kwa mzere.Zomwe zimachitika ndikuti mphamvu yamakongoletsedwe imawonjezeka ndi 0.2 MPa ndipo mphamvu yolumikizira kukameta ubweya imakwera ndi 0.45 MPa pakuwonjezeka kulikonse kwa 1% mu ufa wa polima wosabalalika.
2.2 Kuponderezedwa/kupinda kwa matope okha
Ndi kuwonjezeka kwa redispersible polima ufa zili, compressive mphamvu ndi flexural mphamvu ya polima matope palokha anachepa, kusonyeza kuti polima ali ndi cholepheretsa hydration wa simenti.Zotsatira za dispersible polima ufa zili pa psinjika chiŵerengero cha polima matope palokha ikuwonetsedwa Chithunzi 4. , ndi kuwonjezeka kwa redispersible latex ufa zili, psinjika chiŵerengero cha polima matope palokha amachepetsa, kusonyeza kuti polima bwino kulimba kwa matope.Avereji yolemedwa ya mfundo iliyonse yofunikira imatha kusanthula kuchuluka kwa chikoka cha ufa wa polima wopangidwanso pakugwira ntchito kwa matope a polima wokha.Pakuchulukirachulukira kwa ufa wa polima wopangidwanso, mphamvu yopondereza, mphamvu yosunthika komanso The indentation ratio ikuwonetsa kutsika kwa mzere.Pachiwonjezeko chilichonse cha 1% cha ufa wa polima wotayika, mphamvu yopondereza imachepa ndi 1.21 MPa, mphamvu yosinthika imachepa ndi 0.14 MPa, ndipo chiŵerengero cha kuponderezana-ku-pinda chimachepa ndi 0.18.Zitha kuwonekanso kuti kusinthasintha kwa matope kumakhala bwino chifukwa cha kuchuluka kwa ufa wa polima wotayika.
2.3 Kachulukidwe kusanthula zotsatira laimu mchenga chiŵerengero pa katundu wa polima matope
Mu polima matope, mogwirizana pakati laimu-mchenga chiŵerengero ndi redispersible polima ufa okhutira mwachindunji zimakhudza ntchito ya matope, choncho m'pofunika kukambirana mmene chiŵerengero laimu-mchenga payokha.Malinga ndi orthogonal test data processing njira, osiyana laimu-mchenga chiŵerengero ntchito monga zinthu variable, ndi zogwirizana redispersible polima ufa okhutira ntchito nthawi zonse kuti ajambule kachulukidwe chithunzi cha chikoka cha laimu-mchenga chiŵerengero kusintha pa matope.Zitha kuwoneka kuti, pakuwonjezeka kwa chiŵerengero cha laimu-mchenga, kachitidwe ka matope a polima ku matope a simenti ndi ntchito ya matope a polima pawokha akuwonetsa kutsika pang'ono.Mphamvu zomangira zimachepetsedwa ndi 0.12MPa, mphamvu yolumikizira kukameta ubweya imachepetsedwa ndi 0.37MPa, mphamvu yopondereza ya matope a polima yokha imachepetsedwa ndi 4.14MPa, mphamvu yosinthika imachepetsedwa ndi 0.72MPa, ndi kuponderezana-ku-pinda. chiŵerengero chachepetsedwa ndi 0.270
3 Zotsatira za ufa wonyezimira wa latex womwe uli ndi f pakumangirira kolimba kwa matope a polima ndi bolodi la EPS lopangidwa thovu la polystyrene Kumangirira matope a polima ku dothi la simenti ndi kumangirira kwa bolodi la EPS lopangidwa ndi DB JOI-63-2002 muyezo ndikosamvana.
Zakale zimafuna kukhwima kwakukulu kwa matope a polima, pamene chotsirizirachi chimafuna kusinthasintha kwakukulu, koma poganizira kuti polojekiti yakunja yotenthetsera kutentha iyenera kumamatira ku makoma onse okhwima ndi matabwa a EPS osinthika, panthawi imodzimodziyo, m'pofunika kuonetsetsa kuti mtengowo ndi wodalirika. osakwera kwambiri.Choncho, wolemba amatchula zotsatira za dispersible polima ufa zili pa flexible kugwirizana katundu wa polima matope padera kutsindika kufunika kwake.
3.1 Mphamvu ya mtundu wa ufa wa polima wotayika pa mphamvu ya bondi ya EPS board
Redispersible latex ufa amasankhidwa kuchokera kunja R5, C1, P23;Taiwanese D2, D4 2;zapakhomo S1, S2 2, okwana 7;bolodi polystyrene anasankha Beijing 18kg / EPS bolodi.Malinga ndi muyezo wa DBJ01-63-2002, bolodi la EPS limatha kutambasulidwa ndikumangirizidwa.Redispersible latex ufa amatha kukwaniritsa zofunikira zokhazikika komanso zosinthika zomangira zomangira zamatope a polima nthawi yomweyo.
Nthawi yotumiza: Nov-01-2022