Lekwasị anya na cellulose ethers

RDP maka ngwa ngwa agwakọta akọrọ

RDP maka ngwa ngwa agwakọta akpọnwụ

 

Ngwakọta agwakọta akọrọ bụ ụdị ngwakọta granular na ntụ ntụ nke ezigbo mkpokọta na ihe simenti inorganic, ihe na-eme ka mmiri sie ike, onye na-ebelata mmiri, onye na-egbochi mgbawa, onye na-emebi ụfụfụ na ihe mgbakwunye ndị ọzọ agwakọta nke ọma n'otu akụkụ. A na-ebuga ya na saịtị ahụ site na gwongworo tankị pụrụ iche ma ọ bụ akpa akwụkwọ anaghị ekpuchi mmiri, ma gwakọta ya na mmiri. Ugbu a na mgbakwunye na ciment na ájá na ọnụ ọgụgụ buru ibu nke akọrọ agwakọta ngwa agha, ọnụ ọgụgụ nke ndị ọzọ bụ redispersible redispersible.polymer ntụ ntụ RDP. N'ihi ọnụ ahịa ya dị elu yana mmetụta dị ukwuu na akụrụngwa ngwa agha, ọ bụ ihe na-elekwasị anya ndị mmadụ. Mmetụta nke redispersiblepolymer ntụ ntụ RDPna Njirimara nke ngwa agha ka a tụlere n'akwụkwọ a.

 

1 Usoro nnwale

Iji chọpụta mmetụta nke redispersiblepolymer ntụ ntụ RDPỌdịnaya dị na akụrụngwa ngwa agha polymer, e mere ọtụtụ ụdị usoro site na usoro nnwale orthogonal wee nwalee dịka dbjoi-63-2002 si dị, ụkpụrụ nyocha nke polymer Mortar maka mkpuchi mpụga nke mgbidi mpụta, iji chọpụta mmetụta nke ngwa agha polymer na tensile. ike nkekọ, mkpakọ mkpakọ shiee njikọ ike na mkpakọ ike, ike mgbanwe na mgbanwe ruru nke polymer ngwa agha na ihe ndabere.

Isi akụrụngwa bụ P-04 2.5-pu silicon ciment; RE5044 na R1551Z nwere ike gbasaa ọzọ ma gbasaa emulsion ntụ ntụ; 70-140 mesh quartz ájá; Ihe mgbakwunye ndị ọzọ.

 

2 Mmetụta nke redispersiblepolymer ntụ ntụ RDPna Njirimara nke ngwa agha polymer

2.1 Njikọ tensile na mkpakọ mmakọ mmakọ

Na mmụba nke redispersiblepolymer ntụ ntụ RDPỌdịnaya, ike njikọ tensile na mkpakọ mkpakọ shiee nkekọ ike nke polymer ngwa agha na simenti ngwa agha na-abawanye, na akụkụ ise na-ebuli elu yiri nke simenti ọdịnaya. All dị mkpa ihe arọ nkezi, ma quantitative analysis nwere ike chụsasịrị emulsion ntụ ntụ ọdịnaya na ogo nke mmetụta nke ciment ngwa agha arụmọrụ nwere ike ịhụ na na-abawanye nke reusable chụgara emulsion ntụ ntụ ọdịnaya na bonding ike nke ciment ngwa agha, polymer ngwa agha compressive shiee ike. usoro uto linear, omume n'ozuzu maka mmụba 1% ịgbasapolymer ntụ ntụ RDP, ike njikọ mụbara site na 0.2 MPa, ike njigide shiee abawanye site na 0.45MPA.

 

2.2 Compressive/ehulata Njirimara nke ngwa agha n'onwe ya

Na mmụba nke ọdịnaya nke redispersiblepolymer ntụ ntụ RDP, ike mkpakọ na ike mgbanwe nke ụrọ polymer na-ebelata, na-egosi na polymer nwere mmetụta na-egbochi hydration nke ciment. FIG. 4 na-egosi mmetụta nke redispersiblepolymer ntụ ntụ RDPọdịnaya na mkpakọ na mpịachi ruru nke polymer ngwa agha. , na mmụba nke ọdịnaya nke redispersiblepolymer ntụ ntụ RDP, oke mkpakọ onwe onye nke ụrọ polymer na-ebelata, na-egosi na polymer na-eme ka ike nke ngwa agha dịkwuo mma. Mmetụta nke ọdịnaya nke redispersiblepolymer ntụ ntụ RDPna arụmọrụ nke ngwa agha polymer nwere ike nyochaa nke ọma site na nkezi dị arọ nke ebe njikọ ọ bụla. Na mmụba nke ọdịnaya nke redispersiblepolymer ntụ ntụ RDP, ike mkpakọ, ike mgbanwe na mgbanwe mgbanwe nke ụrọ polymer na-egosi usoro na-ebelata akara. The mkpakọ ike ike, mgbanwe ike na flexural ruru nke redispersiblepolymer ntụ ntụ RDPbelatara site na 1.21 MPa, 0.14MPa na 0.18 kwa 1%. A pụkwara ịhụ na n'ihi mmụba nke ọnụọgụ nke redispersiblepolymer ntụ ntụ RDP, agbanweela ngwa ngwa ngwa ngwa.

 

2.3 Ọnụ ọgụgụ nyocha nke mmetụta nke cement-aja ruru na njirimara nke ngwa agha polymer

Na ngwa agha polymer, oke ciment-aja na redispersiblepolymer ntụ ntụ RDPọdịnaya na-emekọrịta ihe ozugbo na ibe ya, ya mere ọ dị mkpa iji kwurịta mmetụta nke ciment-aja dị iche iche. Dị ka orthogonal nnwale data nhazi usoro ga-dị iche iche dị ka variables, ikposa nwere ike jikọọ napolymer ntụ ntụ RDPọdịnaya dị ka a mgbe nile ihe na-adọta iche na mmetụta nke mgbanwe na ngwa agha quantitative ọgụgụ, nwere ike ịhụ na na-abawanye nke iche na arụmọrụ nke ciment ngwa agha polymer ngwa agha na polymer ngwa agha arụmọrụ n'onwe ya na-linearly ibelata omume, The n'ozuzu omume bụ na ike njigide nke ụrọ polymer na ngwa ngwa ciment na-ebelata site na 0.12MPa, ike nkenke shiee na-ebelata site na 0.37MPa, ike mkpakọ nke ụrọ polymer na-ebelata site na 4.14MPa, ike mgbanwe na-ebelata site na 0.72MPa, na mgbanwe mgbanwe na-ebelata site na 0.270. na nke ọ bụla mmụba nke ciment-aja ruru

 

3 Mmetụta nke redispersiblepolymer ntụ ntụ RDPon tensile bonding n'etiti polymer ngwa agha na EPS ụfụfụ polystyrene osisi DB JoI-63-2002 ọkọlọtọ na-atụ aro na njikọ nke polymer ngwa agha na ciment ngwa agha na EPS osisi megidere.

Nke mbụ chọrọ ngwa agha polymer ka ọ bụrụ nke siri ike, ebe nke ikpeazụ na-achọ ka mgbanwe ya dị elu, ma na-atụle injinia mkpuchi mpụga ma na-arapara mgbidi siri ike na bọọdụ EPS na-agbanwe agbanwe, n'otu oge ahụ iji hụ na ọnụ ahịa ahụ adịghị oke elu. Ya mere, mmetụta nke ọdịnaya nke redispersiblepolymer ntụ ntụ RDPna-agbanwe agbanwe onwunwe nke polymer ngwa agha ka e depụtara iche iche iji mesie mkpa ya.

 

 

4Mmetụta nke ụdị redispersiblepolymer ntụ ntụ RDPna bonding ike nke EPS osisi

R5, C1, P23 ụdị redispersiblepolymer ntụ ntụ RDPe si ná mba ofesi họrọ. Taiwan D2,D4 2 ụdị; Ụlọ S1, S2 2 ụdị 7 ụdị; Bọọdụ Polystyrene emere na bọọdụ EPS 18kg / kpuchie ya. Dị ka ọkọlọtọ dbJ01-63-2002 si dị, a ga-ekesasị ihe ndọtị ahụpolymer ntụ ntụ RDPnke EPS bọọdụ nwere ike izute ihe siri ike ma na-agbanwe agbanwe arụmọrụ chọrọ nke ngwa agha polymer n'otu oge.

 

 


Oge nzipu: Dec-23-2023
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