Kedu ka esi eme ka arụ ọrụ nke kọmpụta rụọ ọrụ?

Site nnwale ntụnyere, mgbakwunye na nke cellulose ether nwere ike budata mma workability nke nkịtị concrete ma melite pumpability nke pumpable konkret. Ntinye nke cellulose ether ga-ebelata ike nke ihe.

Isi okwu: cellulose ether; ihe arụ ọrụ nke ọma; mgbapụta

1.Okwu mmalite

Site na mmepe ọha na eze na-aga n'ihu, ọchịchọ maka ihe azụmahịa na-abawanye. Mgbe ihe karịrị afọ iri nke mmepe ngwa ngwa, kọmpụta azụmahịa abanyela n'ogo tozuru oke. Dị iche iche azụmahịa ihe ihu ọma izute chọrọ nke dị iche iche oru ngo. Otú ọ dị, n'ime ọrụ n'ezie, anyị chọpụtara na mgbe a na-eji ihe mgbapụta eme ihe, ọtụtụ mgbe n'ihi ihe ndị dị ka adịghị arụ ọrụ nke ihe na-adịghị mma na ọnụ ọgụgụ ájá na-adịghị akwụ ụgwọ, a ga-egbochi ụgbọala mgbapụta ahụ, na ọtụtụ oge na ikike mmadụ ga-ala n'iyi na ebe a na-ewu ihe. na ebe a na-agwakọta ihe, nke ga-emetụta ọbụna ọrụ ahụ. àgwà nke. Karịsịa maka ihe nkedo dị ala, ọrụ ya na pumpability dị njọ karị, ọ na-esiwanye ike karị, na ihe gbasara nke puru plugging na ịkụwa dị elu. Na-emekarị, ịba ụba nke ájá na ịba ụba nke simenti nwere ike ime ka ọnọdụ dị n'elu dịkwuo mma, ma ọ na-emekwa ka ihe dị mma dị mma. ihe onwunwe efu. N'ime ọmụmụ ihe gara aga, a chọpụtara na mgbakwunye cellulose ether na ihe na-ekpo ọkụ na-ekpo ọkụ ga-emepụta ọnụ ọgụgụ dị ukwuu nke obere ikuku ikuku na-emechi emechi na ngwakọta, nke na-eme ka mmiri dị nro nke ihe ahụ dịkwuo mma, na-eme ka njigide ọdịda ahụ dịkwuo mma, ma n'otu oge ahụ na-egwuri egwu. ọrụ na njide mmiri na nkwụsịtụ na ngwa ngwa ciment. Ya mere, ịgbakwunye cellulose ether na ihe nkịtị kwesịrị inwe mmetụta yiri nke ahụ. Na-esote, site na nnwale, n'okpuru premise nke mgbe niile mix ratio, a obere ego nke cellulose ether na-agbakwunyere na-ekiri na-arụ ọrụ nke ngwakọta, tụọ udu mmiri njupụta, na nwale mkpakọ ike nke 28d ihe. Ihe a bụ usoro na nsonaazụ nnwale ahụ.

2. Nnwale

2.1 Nwalee akụrụngwa

(1) Simenti bụ Yufeng ika PO42.5 simenti.

(2) The arụ ọrụ ịnweta admixtures eji bụ Laibin Power Plant Class II ofufe ash na Yufeng S75 klas ịnweta ntụ ntụ.

(3) Ngwakọta dị mma bụ igwe ejiri limestone rụpụtara site na Guangxi Yufeng Concrete Co., Ltd., yana modul ịdị mma nke 2.9.

(4) Mkpokọta na-enweghị isi bụ 5-25 mm na-aga n'ihu na nkume limestone nke Yufeng Blasting Company mepụtara.

(5) Onye na-ebelata mmiri bụ polycarboxylate dị elu nke na-ebelata mmiri AF-CB nke Nanning Nengbo Company mepụtara.

(6) The cellulose ether bụ HPMC mepụtara Kima Chemical Co., Ltd, na a viscosity nke 200,000.

2.2 Usoro ule na usoro ule

(1) N'okpuru premise na mmiri na-ekekọta ratio na ájá ruru na-agbanwe agbanwe, na-eduzi ule na dị iche iche ịgwakọta oke, tụọ slump, oge ọdịda ọdịda, na mgbasawanye nke ọhụrụ ngwakọta, tụọ nnukwu njupụta nke ọ bụla sample, na. hụ na agwakọta ruru. Ịrụ ọrụ nke ihe onwunwe ma mee ndekọ.

(2) Mgbe ule nkwụsị nke slump maka awa 1 gasịrị, a na-ejikọta ngwakọta nke ihe nlele ọ bụla ma tinye ya n'ime ìgwè 2 n'otu n'otu, ma gwọọ ụbọchị 7 na ụbọchị 28 n'okpuru ọnọdụ ọkọlọtọ.

(3) Mgbe otu 7d ruru afọ, mee ule na-agbaji iji nweta mmekọrịta dị n'etiti usoro onunu ogwu na ike 7d, wee chọpụta ọnụọgụ ọnụọgụ x na arụ ọrụ dị mma na ike dị elu.

(4) Jiri usoro onunu ogwu x mee ule nke nwere akara dị iche iche, wee tulee ike nke ihe nlele efu dabara na ya. Chọpụta otú ike kọmpat nke ọkwa dị iche iche na-emetụta cellulose ether.

2.3 Nsonaazụ ule na nyocha

(1) N'oge nnwale, na-ahụ na steeti na arụmọrụ nke ọhụrụ ngwakọta nke samples dị iche iche dosages, na-se foto maka ndekọ. Tụkwasị na nke ahụ, a na-edekọkwa nkọwa ọrụ steeti na ọrụ nke ihe nlele ọ bụla nke ngwakọta ọhụrụ.

Na-ejikọta steeti na arụmọrụ nke ngwakọta ọhụrụ nke ihe nlele dị iche iche na nkọwa nke steeti na ihe onwunwe nke ngwakọta ọhụrụ ahụ, enwere ike ịhụ na otu oghere na-enweghị cellulose ether nwere n'ozuzu workability, ọbara ọgbụgba na ogbenye encapsulation . Mgbe agbakwunyere cellulose ether, ihe nlele niile enweghị ihe ọ bụla na-agba ọbara, na arụ ọrụ na-eme ka ọ dịkwuo mma. Ewezuga ihe nlele E, otu atọ ndị ọzọ nwere ezigbo mmiri, nnukwu mgbasawanye, ma dị mfe ịgbapụta na ịrụ ọrụ. Mgbe dose ahụ ruru ihe dịka 1‰, ngwakọta na-aghọ viscous, ogo nke mgbasawanye na-ebelata, na fluidity bụ nkezi. Ya mere, usoro onunu ogwu bụ 0.2‰～0.6‰, nke nwere ike imeziwanye arụmọrụ na-arụ ọrụ na pumpability.

(2) N'oge nnwale ahụ, a tụrụ nnukwu njupụta nke ngwakọta ahụ, wee mebie mgbe ụbọchị 28 gasịrị, a nwetakwara ụfọdụ iwu.

Enwere ike ịhụ ya site na mmekọrịta dị n'etiti nnukwu njupụta / ike na nnukwu njupụta / ike nke ọhụrụ ngwakọta na usoro onunu ogwu na nnukwu njupụta nke ọhụrụ ngwakọta na-ebelata ka usoro nke cellulose ether na-abawanye. Ike mkpakọ ahụ belatakwara site na mmụba nke ọdịnaya ether cellulose. Ọ dabara na kọmpụta ụfụfụ nke Yuan Wei mụrụ.

(3) Site na nnwale, a na-achọpụta na enwere ike ịhọrọ usoro onunu ogwu ka 0.2‰, nke nwere ike ọ bụghị naanị nweta ezigbo arụmọrụ na-arụ ọrụ, ma nweekwa obere ike ọnwụ. Mgbe ahụ, imepụta nnwale C15, C25, C30, C35 4 nke oghere na otu 4 n'otu n'otu jikọtara ya na 0.2.‰cellulose ether.

Lelee arụmọrụ na-arụ ọrụ nke ngwakọta ọhụrụ ma jiri ya tụnyere ihe nlele efu. Mgbe ahụ wụnye ebu maka ọgwụgwọ ọkọlọtọ, ma gbajie ebu ahụ maka ụbọchị 28 iji nweta ike.

N'oge nnwale ahụ, a chọpụtara na arụ ọrụ nke ihe atụ ngwakọta ọhụrụ a gwakọtara na cellulose ether emewo ka ọ dịkwuo mma, ọ gaghị enwe ikewapụ ma ọ bụ ọbara ọgbụgba ma ọlị. Otú ọ dị, ngwakọta dịtụ ala nke C15, C20, na C25 dị n'ụdị oghere dị mfe ikewapụ na ọbara n'ihi obere ntụ. C30 na karịa akara ule abawanyela. Enwere ike ịhụ ya site na data na ntụnyere ike nke aha dị iche iche agwakọta ya na 2‰cellulose ether na oghere oghere na ike nke ihe na-ebelata ruo n'ókè ụfọdụ mgbe a na-agbakwunye cellulose ether, na ịdị ukwuu nke ike ịda mbà na-abawanye na mmụba nke akara.

3. Nkwubi okwu nnwale

(1) Ịgbakwunye cellulose ether nwere ike imeziwanye ọrụ nke ihe dị ala na-arụ ọrụ ma melite mgbapụta.

(2) Na mgbakwunye nke cellulose ether, nnukwu njupụta nke ihe na-ebelata, na ọnụ ọgụgụ buru ibu, na-adị ntakịrị ntakịrị.

(3) Ịgbakwunye cellulose ether ga-ebelata ike nke ihe, na mmụba nke ọdịnaya, ogo nke mbelata ga-abawanye.

(4) Ịgbakwunye cellulose ether ga-ebelata ike nke ihe, na mmụba nke ọkwa, ịdị ukwuu nke mbelata ga-abawanye, n'ihi ya, ọ dịghị adabara iji na ọkwa ọkwa dị elu.

(5) Ịgbakwunye cellulose ether nwere ike iji mee ka arụ ọrụ nke C15, C20, na C25 dịkwuo mma, na mmetụta dị mma, ebe nkwụsị nke ike adịghị oke. Usoro mgbapụta ahụ nwere ike belata ohere nke ikpochapụ ọkpọkọ ma melite arụmọrụ ọrụ.