Ngwa agha na-ebuli onwe ya nwere ike ịdabere n'ịdị arọ nke ya iji mepụta ntọala dị larịị, dị nro na nke siri ike na mkpụrụ maka ịtọ ma ọ bụ jikọta ihe ndị ọzọ. Ọ nwekwara ike ịrụ ọrụ nke ọma n'ofe ebe buru ibu. Mmiri dị elu bụ akụkụ dị oke mkpa nke ngwa agha na-ebuli onwe ya elu. ; Tụkwasị na nke ahụ, ọ ghaghị ịnwe ụfọdụ njigide mmiri na ike njikọ, ọ bụghị ịmepụta mmiri nkewa, ma nwee àgwà nke mkpuchi okpomọkụ na obere okpomọkụ ịrị elu.
N'ozuzu, ngwa agha na-ebuli onwe ya na-achọ ezigbo mmiri mmiri.Cellulose etherbụ nnukwu mgbakwunye maka ngwa agha agwakọtara agwakọta. Ọ bụ ezie na ego mgbakwunye dị ntakịrị, ọ nwere ike imeziwanye arụmọrụ nke ngwa agha ahụ. Ọ nwere ike imeziwanye ihe na-agbanwe agbanwe, arụ ọrụ na-arụ ọrụ, na ihe nkpuchi na njigide mmiri, wdg.
Mmiri mmiri
Cellulose ethernwere mmetụta dị mkpa na njide mmiri, nkwụsi ike, na ịrụ ọrụ nke mgbidi nke onwe ya. Karịsịa maka ngwa agha na-ebuli onwe ya, mmiri mmiri bụ otu n'ime ihe ndị na-egosi maka ịlele arụmọrụ nke onwe. N'ihe dị n'ihu n'ịhụ na nhazi nkịtị nke ngwa agha ahụ, mmiri mmiri nke ngwa agha nwere ike gbanwee site n'ịgbanwe ọnụọgụ cellulose ether. Otú ọ dị, oke usoro onunu ogwu ga-ebelata mmiri mmiri nke ngwa agha ahụ, ya mere ekwesịrị ịchịkwa usoro nke cellulose ether n'ime oke ezi uche.
Njide mmiri
Njide mmiri Mortar bụ ihe dị mkpa iji tụọ nkwụsi ike nke ihe dị n'ime nke ngwa ciment ọhụrụ. Iji mezuo mmeghachi omume hydration nke ihe gel, ihe ezi uche dị na ya nke cellulose ether nwere ike ịnọgide na-enwe mmiri na ngwa ngwa ruo ogologo oge. N'ikwu okwu n'ozuzu, ọnụ ọgụgụ njide mmiri nke slurry na-abawanye site na mmụba nke ọdịnaya cellulose ether. Ọrụ na-ejigide mmiri nke cellulose ether nwere ike igbochi mkpụrụ ahụ ka ọ ghara ịmịkọrọ mmiri dị ukwuu ngwa ngwa ma gbochie evaporation nke mmiri, si otú ahụ hụ na gburugburu ebe obibi na-enye mmiri zuru oke maka hydration ciment. Na mgbakwunye, viscosity nke cellulose ether nwekwara mmetụta dị ukwuu na njide mmiri nke ngwa agha. Nke dị elu nke viscosity, ka mma na-ejigide mmiri. A na-ejikarị cellulose ethers nwere viscosity n'ozuzu nke 400 mpa.s na ngwa agha na-edozi onwe ya, nke nwere ike ime ka ọkwa ọkwa nke ngwa agha dịkwuo elu ma melite njupụta nke ngwa agha ahụ.
Oge coagulation
Cellulose ethernwere ụfọdụ retarding mmetụta na ngwa agha. Ka ọdịnaya nke cellulose ether na-abawanye, oge nhazi nke ngwa agha na-abawanye. Mmetụta azụ azụ nke cellulose ether na ciment slurry na-adabere n'ogo nke nnọchi nke otu alkyl ma nwee obere mmekọrịta na ịdị arọ ya. Ka ogo ngbanwe nke alkyl dị ntakịrị, ka ọdịnaya hydroxyl na-abawanye, ma na-apụta ìhè karịa mmetụta nkwụghachi azụ. Na ọdịnaya nke cellulose ether dị elu karị, nke a na-apụta ìhè karị na oyi akwa ihe nkiri dị mgbagwoju anya na-eme ka hydration nke mbụ nke ciment ghara ịmalite, ya mere, otú ahụ ka ọ na-apụta ìhè karị.
Ike mgbanwe na ike mkpakọ
Ike bụ otu n'ime ihe nyocha nyocha dị mkpa maka mmetụta siri ike nke ihe ciment dabeere na ciment na ngwakọta. Ka ọdịnaya nke cellulose ether na-abawanye, ike mkpakọ na ike mgbanwe nke ngwa agha ga-ebelata. Ọ dị mkpa ka achịkwa ya n'ime oke ezi uche dị na ya.
Ike njikọ
Cellulose ether nwere mmetụta dị ukwuu na njirimara njikọ nke ngwa agha. Cellulose ether na-emepụta ihe nkiri polymer nwere mmetụta akara n'etiti cement hydration particles na mmiri mmiri usoro usoro, nke na-akwalite ọzọ mmiri na polymer film n'èzí simenti irighiri, nke na-eme ka zuru ezu hydration nke ciment, si otú ahụ na-eme ka Bond ike. mgbe hardening nke slurry. N'otu oge ahụ, ọnụ ọgụgụ kwesịrị ekwesị nke cellulose ether na-eme ka plasticity na mgbanwe nke ngwa agha ahụ dịkwuo mma, na-ebelata ike nke mpaghara mgbanwe n'etiti ngwa agha na ihe isi ala, ma na-ebelata ikike mmịfe n'etiti oghere. Ruo n'ókè ụfọdụ, mmetụta njikọ dị n'etiti ngwa agha na ihe ndabere na-eme ka ọ dịkwuo mma. Tụkwasị na nke ahụ, n'ihi ọnụnọ cellulose ether na ciment slurry, a na-emepụta mpaghara mgbanwe pụrụ iche na interface oyi akwa n'etiti ngwongwo ngwa agha na ngwaahịa hydration. Nke a interface oyi akwa na-eme ka interface mgbanwe mpaghara ọzọ mgbanwe na ala rigidity. Ya mere, , nke mere na ngwa agha ahụ nwere ike njikọ siri ike.
Oge nzipu: Feb-02-2024