I-RDP yodaka olomile oluxubile

Udaka olomile oluxubekile uhlobo lwengxube ye-granular kanye nempushana ye-aggregate ecolekile kanye nezinto zikasimende ezingaphili, izinto ezijiyayo ezigcina amanzi, i-ejenti yokunciphisa amanzi, i-anti-cracking, i-ejenti ekhipha amagwebu nezinye izithasiselo ezixutshwe ngokulinganayo ngengxenye ethile. Ithuthwa isiwe endaweni ngethangi elikhethekile noma isikhwama sephepha esivaliwe, bese sixutshwa namanzi. Manje ngaphezu kukasimende nesihlabathi enanini elikhulu lodaka olomile oluxubile, inani lokungaphezulu liphinde lihlakazwe kabusha.i-polymer powder RDP. Ngenxa yentengo yayo ephezulu kanye nethonya elikhulu ezimpahleni zodaka, igxile ekunakeni kwabantu. Umthelela wokuhlakazeka kabushai-polymer powder RDPmayelana nezakhiwo zodaka kwaxoxwa ngakho kuleli phepha.

1 Indlela Yokuhlola

Ukuze kunqunywe umthelela we-redispersiblei-polymer powder RDPokuqukethwe ezakhiweni zodaka lwe-polymer, Amaqembu amaningana okwakhiwa aklanywe ngendlela yokuhlola ye-orthogonal futhi avivinywa ngokuya nge-dbjoi-63-2002, Izinga Lokuhlola Ikhwalithi Ye-polymer Mortar for Insulation yangaphandle yodonga lwangaphandle, ukuze kunqunywe umthelela we-polymer mortar ku-tensile. amandla ebhondi, amandla esibopho se-shear esicindezelayo namandla acindezelayo, amandla aguquguqukayo kanye nesilinganiso sokuguquguquka sodaka lwe-polymer kusisekelo sikakhonkolo.

Impahla eluhlaza eyinhloko yi-P-04 2.5-pu ye-silicon sement; I-RE5044 ne-R1551Z ingahlakazwa kabusha futhi ihlakazwe kabusha i-emulsion powder; 70-140 mesh isihlabathi se-quartz; Ezinye izithasiselo.

2 Umthelela wokuhlakazeka kabushai-polymer powder RDPezimpahleni zodaka lwe-polymer

2.1 Izakhiwo eziqinile zebhondi kanye ne-compression shear bond

Ngokukhula kokuhlakazeka kabushai-polymer powder RDPokuqukethwe, amandla ebhondi eqinile namandla esibopho sokugunda esicindezelayo sodaka lwe-polymer nodaka lukasimende nakho kuyakhula, futhi amajika amahlanu aya phezulu ngokuhambisana nokwanda kosimende. Wonke amaphuzu afanelekile anesisindo esilinganiselwe, kodwa ukuhlaziywa komthamo kungahlakazwa okuqukethwe kwe-emulsion powder ngezinga lethonya le-samente ukusebenza kodaka kungabona ukuthi ngokwanda kokuqukethwe kwe-emulsion okuhlakazeka kabusha okuhlakazekile kumandla okubopha kosimende, amandla e-polymer mortar compressive shear. ukuthambekela kokukhula komugqa, inkambiso iyonke yokwenyuka ngo-1% ukuhlakazekai-polymer powder RDP, amandla okubopha akhuphuke ngo-0.2 MPa, amandla ebhondi ye-Compression shear akhuphuke ngo-0.45MPA.

2.2 Izakhiwo ezicindezelayo/ezigobayo zodaka ngokwalo

Ngokukhula kokuqukethwe kokuhlakazeka kabushai-polymer powder RDP, amandla acindezelayo namandla aguquguqukayo odaka lwe-polymer ayancipha, okubonisa ukuthi i-polymer inomphumela ovimbela ukugeleza kukasimende. I-FIG. 4 ikhombisa umthelela wokuhlakazeka kabushai-polymer powder RDPokuqukethwe esilinganisweni sokucindezelwa nokugoqeka kodaka lwe-polymer. , ngokwanda kokuqukethwe kokuhlakazeka kabushai-polymer powder RDP, isilinganiso sokuzicindezela se-polymer mortar siyancipha, okubonisa ukuthi i-polymer ithuthukisa ukuqina kodaka. Umthelela wokuqukethwe kokuhlakazeka kabushai-polymer powder RDPekusebenzeni kodaka lwe-polymer kungahlaziywa ngokomthamo ngesilinganiso esinesisindo sephuzu ngalinye lokuhlangana. Ngokukhula kokuqukethwe kokuhlakazeka kabushai-polymer powder RDP, amandla acindezelayo, amandla aguquguqukayo kanye nesilinganiso sokuguquguquka sodaka lwe-polymer sibonisa inkambiso enciphayo elandelanayo. Amandla acindezelayo, amandla aguquguqukayo kanye nesilinganiso sokuguquguquka se-dispersiblei-polymer powder RDPyehle ngo-1.21 MPa, 0.14MPa kanye no-0.18 nge-1%. Kungabonakala futhi ukuthi ngenxa yokwanda kwenani lokuhlakazeka kabushai-polymer powder RDP, ukuguquguquka kodaka kuye kwathuthukiswa.

2.3 Ukuhlaziywa komthamo womthelela wesilinganiso sikasimende nesihlabathi ezimpahleni zodaka lwe-polymer

Kusimende we-polymer, isilinganiso sikasimende nesihlabathi futhi sihlakazeka kabushai-polymer powder RDPokuqukethwe kusebenzisana ngqo komunye nomunye, ngakho-ke kuyadingeka ukuxoxa ngethonya lesilinganiso sikasimende nesihlabathi ngokwehlukana. Ngokusho kwendlela yokucubungula idatha yokuhlolwa kwe-orthogonal izohluka njengezinto eziguquguqukayo, i-scatter ingahlotshaniswa nei-polymer powder RDPokuqukethwe njengesici esiqhubekayo sokudweba umehluko kumthelela woshintsho kusibalo sosimende somthamo, singabona ukuthi ngokwanda kokuqhathanisa ekusebenzeni kodaka lwe-polymer mortar kanye nokusebenza kodaka lwe-polymer ngokwako kuwumkhuba onciphayo, Inkambiso evamile ukuthi Amandla ebhondi eqinile yodaka lwe-polymer odakeni lukasimende ancipha ngo-0.12MPa, amandla esibopho esicindezelayo se-shear ehla ngo-0.37MPa, amandla acindezelayo. udaka lwe-polymer lwehla ngo-4.14MPa, amandla okuguquguquka ehla ngo-0.72MPa, futhi isilinganiso se-flexural sehla ngo-0.270 ngokunyuka ngakunye kwesilinganiso sikasimende nesihlabathi.

3 Umthelela wokuhlakazeka kabushai-polymer powder RDPekuxhumaneni okuqinile phakathi kodaka lwe-polymer kanye nebhodi le-polystyrene le-EPS legwebu le-DB JoI-63-2002 elijwayelekile liphakamisa ukuthi ukubopha udaka lwe-polymer odakeni lukasimende kanye nebhodi le-EPS kuyaphikisana.

Okwangaphambili kudinga udaka lwe-polymer ukuthi luqine, kuyilapho lokhu okulandelayo kudinga ukuguquguquka kwayo ukuba kube phezulu, kodwa kucabangela ubunjiniyela bokufakelwa kwangaphandle kokubili ukunamathela odongeni oluqinile kanye nebhodi le-EPS eliguquguqukayo, ngesikhathi esifanayo ukuqinisekisa ukuthi izindleko aziphezulu kakhulu. Ngakho-ke, umthelela wokuqukethwe kwe-redispersiblei-polymer powder RDPempahleni evumelana nezimo yodaka lwe-polymer ifakwe ohlwini ngokuhlukana ukuze kugcizelelwe ukubaluleka kwayo.

4Umthelela wezinhlobo zokuhlakazeka kabushai-polymer powder RDPemandleni okubopha ebhodi le-EPS

R5,C1,P23 izinhlobo ezihlakazeka kabushai-polymer powder RDPbakhethwa phesheya. I-Taiwan D2,D4 2 izinhlobo; Domestic S1, S2 2 izinhlobo 7 izinhlobo; Ibhodi le-polystyrene elenziwe e-Beijing 18kg/ linebhodi le-EPS elinomugqa. Ngokusho kwe-dbJ01-63-2002 ejwayelekile, i-stretch bond iyahlakazeka futhii-polymer powder RDPyebhodi ye-EPS ingahlangabezana nezidingo eziqinile neziguquguqukayo zokusebenza kwebhondi ye-polymer ngesikhathi esifanayo.