Redistperpentible mbubreyo bu ihe a na-ejikarị ihe organic. Ọ bụ ntụ ntụ nwetara site na ịgba ọkụ polymer na-a alcoholụ polyvinyl mmanya dị ka ihe nchebe. Enwere ike ịgbazigharị ntụ ntụ a na mmiri ọbụlagodi mgbe mmiri gachara. , na-akpụ emulsion. Ihe mgbakwunye nke polymer polymer nwere ike ime ka njigide mmiri dị mma nke ngwa agha ciment ọhụrụ, yana arụmọrụ nke njikọta, mgbanwe, adịghị ike na nguzogide nke ngwa agha ciment siri ike. Ihe ndị a na-ewebata usoro nke polymer na-acha uhie uhie na ngwa agha ciment na mmetụta ya na arụmọrụ ciment.
Mmetụta na Hydration Hydration Usoro na Atụmatụ
Ọ bụrụhaala na ihe onwunwe ciment na-agbakwunye na mbubreyo mmiri nke mbubreyo mmiri, a na-ebido mkpụrụ osisi calllidizes ngwa ngwa, na n'otu oge ahụ na-edobe ciment ahụ na gel na ciment. Site na oganihu nke mmeghachi omume hydration, nri ogwu na-abawanye, na polymers na-eji nwayọọ nwayọọ na-achịkwa ya na pores na-eji nwayọọ guzoro n'elu gel na ciment na-enweghị atụ. Na-achịkwa polymen na-eji nwayọọ nwayọọ jupụta pores pores, mana enweghị ike jupụta n'ime ụlọ nke capillary dị n'ime. Ka hydration ma ọ bụ ihicha mmiri na-ebelata mmiri ọzọ, ụmụ irighiri ihe na-aga n'ihu na fim na na cimes ciment slurry ma melite njikọta nke ngwaahịa iji chịkwaa. N'ihi na ngwaahịa hyDation nwere polymer na-etolite mkpuchi mkpuchi na interface, ọ nwere ike imetụta uto nke ettrunite na calrium hildroxide Calrium carish; Ọzọkwa n'ihi na polymeta na fim ahụ na porures nke mpaghara ntụgharị, nke na-eme ka ihe ndị na-eme nke polymer ciment bụ denser. Otu ndị nọ n'ọrụ na ụfọdụ ụmụ irighiri ihe polymel ga-enwe mmeghachi omume na-ejikọ ya na CE2, na-eme ka ahụ dị iche iche na-eme ihe ike, na-ebelata ọgbọ nke microsocks. Dika ihe owuwu ciment na - etolite, mmiri na - emebi emebi na polymen irighiri ihe na pores. Na-enwekwu hydration nke ciment, mmiri dị na poresymer na-agbakọta ngwakọta na-ebelata, na-eme ka cimes na-aga n'ihu jupụta na polmer na-aga n'ihu.
A na-achịkwa ọrụ nke polymer ntụ ntụ polymer na-eji ọgwụ abụọ nke ciment hydration na polymer fim. E guzobere usoro ihe mejupụtara hydration hymer na polymer ihe nkiri na-arụpụta na 4 usoro:
(1) Mgbe ntụ ntụ na-acha uhie uhie na-agwakọta ya na crumps, a na-ejikọ ya na sistemụ ahụ;
A na-edebe akwụkwọ polymer n'elu nke ciment hydration ngwaahịa Gel / Enweghi nkụ cime ngwakọta;
(3) ụmụ irighiri ihe na-etolite na-aga n'ihu na-aga n'ihu;
(4) N'oge ciment hydreation, polymer compaceles chịkọtara na fim na-aga n'ihu, a na-ejikọkwa ihe hyderation iji mejupụta netwọko zuru oke.
Amulsion polymer nke polymerble polymer na-acha uhie uhie nwere ike ịmalite mmiri na-aga n'ihu (polymer) mgbe ọkpọọtlọ ọrụ polymer nke polymer a nwere ike ime ka arụmọrụ nke ciment; Cloupfọdụ ndị otu polar nke ciment ahụ na-emepụta kemịkal na-emepụta ihe iji mejupụta ihe pụrụ iche, nke na-eme ka owuwu anụ ahụ hydration ngwaahịa na ebelata ọgbọ nke cracks. Mgbe agbakwunyere polymerble polymerble polymerble polymerble na-agbakwunye, ihe nkiri mbụ nke polymer nwere ike belata, na enwere ike iji ciment ahụ, a ga-emekwa ciment na ihe dị iche iche.
Mmetụta na akụkụ nke ihe onwunwe ciment
Emulsion na-achụsa polmer ntụ polmer nwere ike itolite ike tensile na nkekọ na akụkụ dị iche iche mgbe ịzụrụ ihe nkiri. A na-ejikọ ha na inorganic bedder ciment dị ka ihe mgbochi nke abụọ. A na-eji nkwanye ugwu na polymer na-eme ka ọ bụrụ ihe pụrụ iche na-ekwekọ, n'ihi ya ka arụmọrụ nke ngwa agha ga-akawanye mma. Site n'ikiri ihe onwunwe nke polymer ciment, a kwenyere na mgbakwunye polymer polymerble polymer nwere ike ime ka ihe nkiri polymen wee bụrụ akụkụ nke paly mgbidi. Ike nchịkọta, si otú a na-amụba nrụgide ọdịda nke ngwa agha ahụ ma na-arịwanye elu. Ogologo oge nke polymer polymerble polymerble polymer na-acha uhie uhie na ngwa agha ahụ mụrụ. A hụrụ ya site na semba nke na mgbe afọ 10 gachara, micros-na mmụọ nsọ nke polymer na ndị na-agbanwe agbanwe, na-eguzogide na nguzogide mkparita uka. Ike na ezigbo hydrophobidity. Wang Ziming na al. [11] na-amụ usoro usoro nke Redisption Latex na ike nke talmer na-eme ka ọ bụrụ nke a na-agbanwe agbanwe nke ọma, na nke ọzọ na-emetụtakwa ya Usoro, polymer na-enye aka na usoro hydration ma na-adakwa nke ciment na ihe mgbochi. Ihe kachasị mma, ihe niile ga - enyere aka ka mma iji meziwanye ike nke njikọ.
Na-agbakwunye ntụ ntụ na-acha uhie uhie na-agha agha nwere ike ime ka ihe nkekọ dị mma na ihe ndị ọzọ na-eme ka ọ bụrụ nke ọma, na mbubreyo ntụ ntụ na-abanye n'ime pores na cares. A na-akpụzi ihe nkiri dị n'ime ma guzosi ike n'elu mkpụrụ, si otú ahụ na-enyere gị aka dị mma n'etiti ihe ciment na mkpụrụ.
Imaghi njikarịcha arụmọrụ nke ngwa agha site na mbubreyo ntụ ntụ bụ nke ntụ ntụ bụ nnukwu polymer milaral dị elu. Mgbe a gwakọtara ntụ ntụ na EPS, na-abụghị polar n'akụkụ polymer isi okwu nke mgbụcha nke mbubreyo bụ ihe a ga-eme na-abụghị polar ex-polar. A na-eme ka ndị otu polar dị na polymer na-agbada n'elu elu EPs, nke mere na irighiri ndị eps na-agbanwe site na hydrophobity ka hydrophobity. Pse na-ese n'elu, nsogbu nke nnukwu ngwa ngwa. N'oge a, ịgbakwunye ciment na ịgwakọta, ndị otu Polar gbasawanye n'elu ebe ahụ na-eme ka ciment na-emekọrịta ihe, nke mere na ọrụ ọrụ nke ọgwụ EPS proution na-akawanye mma. A na-ahụpụta nke a n'eziokwu na a na-etinyezi Evyry na-eme ka ụmụ irighiri ihe, na ike dị n'etiti mmadụ abụọ ahụ ka mma.
Mmetụta na mgbanwe nke ihe ciment
Ntugharị na-acha uhie uhie nwere ike imeziwanye ike mgbanwe, ike na akụrụngwa ndị ọzọ nke ngwa agha n'ihi na ọ nwere ike itopụta ihe nkiri polymer n'elu osisi. Enwere pores n'elu ihe nkiri ahụ, na elu nke pores jupụtara na okwute, nke mere na iwere echiche na-emebi emebi. Na n'okpuru ọrụ nke ike ga-emepụta ezumike na-enweghị mmebi. Na mgbakwunye, ihe mgbochi ahụ na-etolite ọkpụkpụ siri ike mgbe a na-emegharị ciment, na polymer na ọkpụkpụ nwere ọrụ nke nkwonkwo ahụ. A ga-eji ihe nkiri ahụ guzobere ihe nkiri ahụ site na otu polymer tụnyere nkwonkwo na akwara, si otú a hụ na enepụ na isi ike.
Na usoro ihe nkiri ciment nke polymer na-aga n'ihu na ciment na-aga n'ihu na ebe a na-aga n'ihu na ebe a na-ere ya, na-eme ka mmiri donser dum, ma n'otu oge ahụ na-eme ka ihe niile dị mma na-emegharị ya. Ya mere, ihe nkiri polymer nwere ike ime ka nrụgide na-ebugharị nrụgide. Ihe nkiri polymer nwere ike iji mee ka ihe ndị na-egbochi ihe na-enweghị ike na polymer-ngwa agha, mee ka mgbatị ahụ gwọọ ọrịa, ma melite ike ya na ike nzuzo nke ngwa agha. Ọnụnọ nke ngalaba polymer na-agbanwe agbanwe na nke ukwuu na-eme ka mgbanwe na-agbanwe agbanwe na ngwa agha ahụ, na-enye ndị na-enweghị ike na akparamagwa ọkpụkpụ. Mgbe etinyere ike mpụga, usoro mgbasa ozi microtroration na-egbu oge n'ihi nkwalite na mgbanwe ruo mgbe erughị nrụgide dị elu ruo mgbe ruru nrụgide dị elu ruo mgbe ruru nrụgide dị elu ruo mgbe ruru nrụgide dị elu ruo mgbe ruru nrụgide dị elu ruo mgbe ruru nrụgide dị elu ruo mgbe ruru nrụgide dị elu ruo mgbe ruru nrụgide dị elu ruo mgbe ruru nrụgide dị elu ruo mgbe ruru nrụgide dị elu ruo mgbe ruru nrụgide dị elu ruo mgbe ruru nrụgide dị elu ruo mgbe ruru nrụgide dị elu ruo mgbe ruru nrụgide dị elu ruo mgbe ruru nrụgide dị elu ruo mgbe ruru nrụgide dị elu ruo mgbe ruru nrụgide dị elu ruo mgbe ruru nrụgide dị elu ruo mgbe ruru nrụgide dị elu ruo mgbe ruru nrụgide dị elu ruo mgbe ruru nrụgide dị elu ruo mgbe ruru nrụgide dị elu ruo mgbe ruru nrụgide dị elu ruo mgbe ruru nrụgide dị elu ruo mgbe ruru nrụgide dị elu ruo mgbe ruru nrụgide dị elu ruo mgbe ruru nrụgide dị elu ruo mgbe ruru nrụgide dị elu ruo mgbe ruru nrụgide dị elu ruo mgbe ruru nrụgide dị elu ruo mgbe ruru nrụgide dị elu ruo mgbe ruru nrụgide dị elu ruo mgbe ruru nrụgide dị elu ruo mgbe ruru nrụgide dị elu ruo mgbe ruru nrụgide dị elu ruo mgbe ruru nrụgide dị elu ruo mgbe ruru nrụgide dị elu ruo mgbe ruru nrụgide dị elu ruo mgbe ruru nrụgide. Ngalaba nke polymer na-arụ ọrụ na-egbochi njikọta nke microsocs n'ime-cracks. Ya mere, ntụ ntụ polymer na-akụziwanye nrụgide ọdịda na ọdịda nke ihe ahụ.
Mmetụta dị na oge nke ciment
E guzobere finmer na-aga n'ihu na fim na-aga n'ihu dị oke mkpa na Njirimara nke ngwa agha ciment nke ciment. N'oge ntọala na usoro cimening nke ciment, ọtụtụ oghere ga-emepụta n'ime, nke ghọrọ akụkụ na-adịghị ike nke ciment mado. Mgbe agbakwunyere polymerble polymerble polymerble polymer na-agbakwunye, polymer ntụ na-agbasa ozugbo na mkpọchi na mmiri, ma na-agbakọ na mpaghara mmiri bara ụba (ntụgharị, n'ime oghere). Ka ciment tapawa na ihe siri ike, mmegharị nke ụmụ irighiri polymen na-amachibido, yana esemokwu dị n'etiti mmiri na ikuku na-eji nwayọ emekọrịta ọnụ. Mgbe ụmụ akwụkwọ polymer na-amalite ịkpọtụrụ ibe anyị, mmiri dị na netwọkụ ahụ na-agbasa site na capillaries, na polymer na-etolite ihe nkiri na-aga n'ihu, na-ewusi ike na-esighi ike. N'oge a, ihe nkiri polymer ahụ enweghị ike ịme ọrụ hydrophobisic, mana ọ gaghị egbochi capillary, ka ihe ahụ nwere ezigbo hydrophodity na ikuku.
Mgbakwunye ciment na-enweghị ịgbakwunye polymer na-ejikọkarị. Kama nke ahụ, ngwa agha ciment ciment na-eme ka ihe mgbochi ahụ nke ọma na n'ihi na ịse ihe nkiri polymer na nguzosi ikuku na-eguzogide. nwoke na nwanyi. Na mbubreyo ciment ciment ciment, mbubreyo mbubreyo ga-abawanye nzuzo nke mpaghara ntụgharị n'etiti mpaghara ciment na nchịkọta nke ngwa agha bụ enweghị ntụpọ. Mgbe etinyere ntụ ntụ n'ime fim, ka enwere ike igbochi pores nke ọma, nke mere na nhazi nke mpaghara ahụ dị mma, yana ikike iguzogide oge mgbasa ozi na-emerụ emerụ. Ọ nwere mmetụta dị mma na mmelite nke ngwa agha.
Ka ọ dị ugbu a, ntụ ntụ polymeth na-arụ ọrụ dị mkpa dị ka ihe mgbakwunye maka ngwa agha. Na-agbakwunye ntụ ntụ na-acha uhie uhie na ngwa agha ahụ nwere ike ịkwadebe ngwa ngwa ngwa ngwa ngwa ngwa ngwa ngwa ngwa ngwa ngwa ngwa ngwa ngwa ngwa ngwa ngwa ngwa ngwa ngwa ngwa ngwa ngwa ngwa ngwa, ngwa agha, ọkụ na-acha uhie uhie, na-eme ka ihe mgbochi na mmiri na-egbochi mmiri. Akwukwo ngwa na ime ihe eji eme ulo. N'ezie, enwere nsogbu nke ime mgbanwe polmer polymer polymer polymer na ciment, na-agba ume ma na-adọrọ mmasị na ngwa ndị akọwapụtara.
Oge post: Feb-20-2025