Kedu ka ntụ ntụ polymer redispersible si emetụta mgbanwe nke ngwa agha?

Admixture nwere mmetụta dị mma n'ịkwalite ịrụ ọrụ nke ịmepụta ngwa ngwa agwakọta akọrọ.A na-eme ntụ ntụ latex na-agbanwe agbanwe site na ihicha nke emulsion polymer pụrụ iche.The akọrọ polymer ntụ ntụ bụ ụfọdụ 80 ~ 100mm okirikiri irighiri ihe gbakọtara ọnụ.Ihe ndị a dị mfe soluble na mmiri, na-etolite a anụ dispersion ubé ibu karịa mbụ emulsion ahụ, na-etolite a film mgbe akpịrị ịkpọ nkụ na ihicha.

Usoro mgbanwe dị iche iche na-eme ka uzuzu latex redispersible nwere ihe dị iche iche dị ka mmiri na-eguzogide mmiri, nguzogide alkali, iguzogide ihu igwe na mgbanwe.Uzuzu uzuzu a na-emegharị emegharị maka ngwa agha nwere ike melite nguzogide mmetụta, ịdịte aka, eyi nkwụsi ike, ịdị mma ihe owuwu, ike nkekọ na njikọta, nguzogide ihu igwe, nguzogide oyi, nguzogide mmiri, ike mgbanwe na nguzogide nke ike mpịachi ngwa agha.Ọ bụrụhaala na ihe sitere na ciment nwere ntụ ntụ latex na mmiri, mmeghachi omume hydration ga-amalite, n'oge na-adịghị anya, ngwọta calcium hydroxide ga-ejupụta na crystallize.N'otu oge ahụ, a na-emepụta kristal ettringite na calcium silicate hydrate gels.A na-edobe ihe ndị siri ike na gel na akụkụ ciment na-enweghị mmiri.Ka mmeghachi omume hydration na-aga n'ihu, ngwaahịa hydration na-abawanye, na ihe ndị na-emepụta polymer na-eji nwayọọ nwayọọ na-agbakọta na pores capillary, na-emepụta akwa akwa akwa akwa n'elu gel na cement na-adịghị edozi.Ihe nchịkọta polymer chịkọtara nke nta nke nta na-ejupụta pores.

Uzuzu uzuzu a na-emegharị emegharị nwere ike imeziwanye ike na-ehulata na ike njikọta nke ngwa agha n'ihi na ọ nwere ike ịmepụta ihe nkiri polymer n'elu akụkụ ngwa agha.Enwere pores n'elu ihe nkiri ahụ, na elu nke pores jupụtara na ngwa agha, nke na-ebelata nrụgide nrụgide.Ọ ga-ezuru ike n'emebighị n'okpuru ọrụ nke ike mpụga.Tụkwasị na nke ahụ, ngwa agha ahụ na-etolite ọkpụkpụ siri ike mgbe ciment gbasasịrị mmiri, na polymer na ọkpụkpụ ahụ nwere ọrụ nke nkwonkwo na-ebugharị, dị ka anụ ahụ nke ahụ mmadụ.Enwere ike iji akpụkpọ ahụ nke polymer kpụrụ na nkwonkwo na nkwonkwo, si otú a na-eme ka ọ dị nro na mgbanwe nke ọkpụkpụ siri ike.

N'ime usoro ciment nke a na-agbanwe agbanwe nke polymer, ihe nkiri polymer na-aga n'ihu na nke zuru oke na-ejikọta ya na mpempe ciment na ájá ájá, na-eme ka ngwa ngwa dum dịkwuo mma, ma n'otu oge ahụ na-eme ka netwọk na-agbanwe agbanwe site na-ejuputa capillaries na cavities.Ya mere, ihe nkiri polymer nwere ike ibunye nrụgide na nrụgide na-agbanwe nke ọma.Ihe nkiri polymer nwere ike mechie mgbawa nke mbelata na interface polymer-mortar, gwọọ mgbawa mbelata, ma melite ike njide na njikọ nke ngwa agha ahụ.Ọnụnọ nke ngalaba polymer na-agbanwe nke ukwuu na nke na-agbanwe agbanwe na-eme ka mgbanwe na ịdị na-agbanwe nke ngwa agha ahụ, na-enye njikọ na ihe dị ike na ọkpụkpụ siri ike.Mgbe a na-etinye ike dị n'èzí, usoro microcrack na-eto eto na-egbu oge ruo mgbe a ga-enwe nrụgide dị elu n'ihi ụbara mgbanwe na ngbanwe.Ngalaba polymer kpara akpa na-arụkwa ọrụ dị ka ihe mgbochi maka microcracks ịbanye n'ime oghere.Ya mere, uzuzu polymer na-agbanwe agbanwe na-abawanye nrụgide ọdịda na ọdịda ọdịda nke ihe.