Otu n'ime nnukwu ọdịiche dị n'etiti ngwa agha akọrọ na ngwa ngwa ọdịnala bụ na a na-eji obere ihe mgbakwunye kemịkal gbanwee ngwa ngwa akọrọ. Ịtinye otu ụdị mgbakwunye na ngwa agha akọrọ ka a na-akpọ mgbanwe izizi, ịgbakwụnye ihe mgbakwunye abụọ ma ọ bụ karịa bụ mgbanwe nke abụọ. Ụdị ngwa agha akọrọ na-adabere na nhọrọ ziri ezi nke ihe mejupụtara ya na nhazi na nhazi nke ihe dị iche iche. Ihe mgbakwunye kemịkalụ dị oke ọnụ ma nwee mmetụta dị ukwuu na njirimara nke ngwa agha akọrọ. Ya mere, na nhọrọ nke mgbakwunye, ọnụ ọgụgụ nke mgbakwunye kwesịrị ịdị na mbụ. Ihe na-esonụ bụ okwu mmeghe nkenke maka nhọrọ nke ihe mgbakwunye kemịkalụ cellulose ether.
Cellulose ether makwaara dị ka rheological modifier ụdị admixture na-eji dozie rheological Njirimara nke ọhụrụ agwakọta ngwa agha, fọrọ nke nta ka eji na ụdị ọ bụla ngwa agha. Ekwesịrị iburu n'uche akụrụngwa ndị a mgbe ị na-ahọrọ ụdị dị iche iche yana ego agbakwunyere:
(1) Njide mmiri na okpomọkụ dị iche iche;
(2) ndim, viscosity;
(3) Mmekọrịta dị n'etiti nkwụsi ike na okpomọkụ, na mmetụta na-agbanwe agbanwe na ọnụnọ nke electrolyte;
(4) ụdị na ogo nke etherification;
(5) nkwalite nke thixotropy na ike ịkwado ngwa ngwa (nke dị mkpa maka ngwa agha mkpuchi na elu elu);
(6) Ọnụọgụ mgbasa, ọnọdụ na mgbasa zuru oke.
Na mgbakwunye na ịgbakwunye cellulose ether na akọrọ ngwa agha (dị ka methyl cellulose ether), nwekwara ike tinye vinyl polyvinyl acid ester, ya bụ, nke abụọ mgbanwe. Ihe nkedo inorganic na ngwa agha (ciment, gypsum) nwere ike ikwe nkwa ike mkpakọ dị elu, mana ọ na-enwe mmetụta dị nta na ike nkwụsị na ike na-ehulata. Vinyl polyvinyl ester na-ewuli ihe nkiri na-agbanwe n'ime oghere nkume ciment, mee ngwa agha nwere ike iburu ibu nrụrụ dị elu, melite nguzogide eyi. E gosiputara site n'omume na site n'itinye ego di iche iche nke methyl cellulose ether na vinyl polyvinyl ester n'ime ngwa agha akọrọ, ihe mkpuchi oyi akwa nke dị nfe, ngwa agha plasta, ngwa akwa eji achọ mma, ngwa agha nke aerated block masonry na n'ike onwe ya nke na-agbapụta ala. enwere ike ịkwado. Ịgwakọta ihe abụọ ahụ nwere ike ọ bụghị nanị na-eme ka mma nke ngwa agha dịkwuo mma, kamakwa ọ na-eme ka arụmọrụ ụlọ dịkwuo mma.
Na ngwa bara uru, iji meziwanye arụmọrụ zuru oke, ọ dị mkpa iji ọtụtụ admixtures. Egwuregwu kacha mma n'etiti oke mgbakwunye, usoro ọgwụgwọ ziri ezi, nha, nwere ike site na akụkụ dị iche iche nwere mmetụta ụfọdụ iji melite arụmọrụ nke ngwa agha, ma mmetụta mgbanwe ya nke ngwa agha mgbe ejiri naanị ya na-ejedebe, mgbe ụfọdụ ọbụna na-enwe mmetụta ọjọọ, dị otú ahụ. dị ka otu doped eriri, na-abawanye adhesiveness nke ngwa agha, belata ogo stratification n'otu oge, Otú ọ dị, mmiri oriri nke ngwa agha na-ukwuu na-echekwa na slurry, nke na-eduga. ka mbelata nke ike mkpakọ. Mgbe agbakwunyere ihe ntinye ikuku, ogo delamination ngwa ngwa na oriri mmiri nwere ike ibelata nke ukwuu, mana ike mkpakọ nke ngwa agha ga-ebelata n'ihi ọtụtụ afụ. Meziwanye ngwa agha masonry maka ịrụ ọrụ kachasị, ebe ị na-ezere mmebi nke ihe onwunwe nke ọzọ, ike nke ngwa agha masonry na-adịgide adịgide, ogo nke stratification na izute injinia chọrọ na ụkpụrụ na nkọwapụta teknụzụ, n'otu oge ahụ, anaghị eji lime putty, chekwaa ciment. , nchedo gburugburu ebe obibi, wdg, site na mmiri mbelata, viscosity, mmiri ndim na ikuku-entraining plasticizing echiche, Ọ dị mkpa iji keukwu jikoro ịzụlite na-eji compound. admixtures.
Oge nzipu: Eprel-29-2022