Nsogbu nkịtị na ngwọta nke Superplasticizer na ngwa ihe

Njirimara nke superplasticizer

N'ihe gbasara ihe gbasara azụmahịa, nke superplasticizer nwere atụmatụ ndị a :(1) Enwere ike nweta ezigbo mbelata mmiri na ọdịnaya dị ala;(2) magburu onwe ike uto mmetụta;(3) na ezigbo fluidity na slump nchebe, ọ nwere obere mmetụta na mwube oge nke ihe, ma nwee ike izute ihe ndị na-agbapụta ihe achọrọ nke ụlọ dị anya na nnukwu ụlọ elu;(4) ezigbo mgbanwe na ciment;(5) olu kwụsie ike nke ihe na-atọ ụtọ, nke na-enwe mmetụta nchịkwa dị mma na mgbawa nke oghere dị n'ime.

Ọtụtụ nsogbu na ngwọta na ngwa nke superplasticizer na azụmahịa ihe

1. Nkwụsi ike adịghị mma

Dị ka uru dị ịrịba ama nke superplasticizer, ọ nwere ngbanwe dị mma na ciment karịa superplasticizer ndị ọzọ. Agbanyeghị, n'ihi ciment dị iche iche na mgbagwoju anya nke admixture, ọ dị mfe inwe nkwụsi ike na-adịghị mma.

Nkwụsi ike na-adịghị mma nke ihe a na-ezo aka na akwụkwọ a na-egosipụtakarị n'eziokwu na ihe ahụ dị mma mgbe a kwụsịrị ya., mana ọbara ọgbụgba na-apụta mgbe izu ike ruo nwa oge, ma ọ bụ ihe ahụ dị n'ọnọdụ dị mma mgbe ewepụrụ ya, na ọnọdụ izu ike dị n'ọnọdụ dị mma, mana nnukwu ọbara ọgbụgba ma ọ bụ ọbụna nkewa na-apụta mgbe gwongworo bu ihe na-aga n'ihu na-akpali. Mwepụta nke nsogbu ndị dị otú ahụ na-eme ka o sie ike karị ịchịkwa àgwà nke ihe. Site ule na ichikota kpọmkwem akụrụngwa na ndị dị otú ahụ okwu na nsochi na-ekiri àgwà nke ihe, ma e wezụga nkwụsi ike na-adịghị mma kpatara site na mmeghari na-adịghị mma nke ciment, ọ bụ isi n'ihi ihe abụọ a:

(1) Mkpali ezughi oke. N'ọdụ ụgbọ oloko ihe ngwakọta, ihe ngwakọta oge nwere nlezianya chọrọ, na ọ bụrụgodị na ọrụ ahụ dị nnukwu, ihe ngwakọta oge ekwesịghị ịbụ ihe na-erughị 2 nkeji.

(2) Nchịkọta nchịkọta na-adịghị mma. Ebe a na-agwakọta ihe nke azụmahịa na-ejikarị mkpokọta 5-31.5mm na-enweghị isi; mkpokọta gradation adịghị mma, oke nha nha ọka na-abawanye, dịkwa mfe ime ka ihe kwụsie ike.

Ngwọta :(1) na-achịkwa oge ịgwakọta oge na usoro mmepụta n'ezie;(2) hụ na ngụkọta gradation na-enweghị isi ma jikwaa oke ọka kacha. Ma ọ bụ hapụ gradation na-aga n'ihu wee were gradation okpukpu abụọ maka ịgbakọta.

2. Mgbe agbachara, ihe na-egosi stratification, nkewa ma ọ bụ mbelata ngagharị

Na mmụba nke ọnụ ọgụgụ oyi akwa nke isi ahụ, ndọtị nke ọkpọkọ ọkpọkọ, chọrọ ka ukwuu fluidity, ma na usoro mmepụta na iwu, ga-apụtakarị tupu ịgbanye ihe arụ ọrụ dị mma, mana mgbe ịpịrị aka na mpaghara arụ ọrụ na-egosi afọ ojuju, segregation ma ọ bụ ihe ọjọọ liquidity ọnọdụ, mbụ arụmọrụ maka ngwa agha na Ọdịdị, net nke ukwuu, nnukwu mkpọkọta imi, siri ike mgbe ọbụna slurry ozize. Isi ihe kpatara nsogbu a bụ na mgbe ihe ejikọtara ya na polycarboxylate superplasticizer nwere oke mmiri, na viscosity slurry na-ada nke ọma na enweghị ike idobe ọnọdụ mbụ ya n'okpuru ọrụ nrụgide dị elu..

Ngwọta: a ga-abawanye ọnụ ọgụgụ ájá n'ezie nke ọma, na kacha urughuru size nke keadighi rarii mkpokọta kwesịrị ịchịkwa mgbe ewu na-rụrụ n'elu elu ala ma ọ bụ mgbe anya n'etiti pumping ọkpọkọ dị ogologo..

3. Mgbawa na-apụta n'elu efere nkedo

Otu n'ime uru dị mkpa nke superplasticizer bụ na ihe agwakọtara ya na ya nwere nkwụsi ike nke olu dị mma ma nwee ike ịchịkwa mgbape n'elu slab nke ihe nkedo a na-etinye.. Agbanyeghị, mgbawa n'elu slab ka dị na usoro eji eme ihe n'ezie. Site na oge nsochi oge, n'otu saịtị ahụ, Otu ọnọdụ ihe owuwu ahụ na teknụzụ owuwu nke nkedo nke ihu osisi kọmpụta, n'ihe banyere ihe workability ziri ezi, ọ bụrụgodị na ezigbo slump ibu mgbe n'ime ebu, agaghịkwa apụta mgbawa mgbe elu na-esi ike, ya mere ọ bụghị n'ihi na mgbe solidification nke elu cracks mere slurry ọkpụrụkpụ. Nnyocha kristal chọpụtara na mgbe mkpokọta urughuru nha nke mkpokọta ihe na-enweghị isi n'ozuzu ya na-abawanye ụbara nke ukwuu ma ọ bụ ihe mara mma nchikota nke na-eme ka nchịkọta nchịkọta dara ogbenye., ọ dị mfe ime ka mgbawa dị n'elu efere ahụ, ihe kpatara ya bụ ọkachasị n'ihi ngụkọ nke dara ogbenye, enwere ike ịnweta ọbara ọgbụgba, nkewa, na ọnọdụ ndị ọzọ.

Ngwọta: Superplasticizer na-enwe mmetụta nke ukwuu maka mkpokọta gradation, dị ka o kwere mee ijikwa mkpokọta gradation, n'okpuru ọnọdụ na ọnọdụ na-ekwe, mkpokọta mkpokọta ka enwere ike iji gradation okpukpu abụọ.

4. Ebube mmanụ aṅụ na olulu mmiri bụ ihe okike ịpụta na akụkụ kwụ ọtọ

Na ntinye nke polycarboxylate superplasticizer na ndị otu kwụ ọtọ, karịsịa maka ndị otu vetikal nwere ịdị elu dị elu, a na-achọpụta mgbe ụfọdụ na mgbe ewepụchara usoro ahụ, elu roughness nke onye akụkụ nke vetikal òtù ezughị, na-akpatara mmanụ aṅụ na pitted elu.

Ngwọta: n'ihi na polycarboxylate superplasticizer nwere ụfọdụ ọnụọgụ ikuku, ya mere ojiji nke superplasticizer agwakọta ihe mgbe abanye ebu n'ihi na oge, ịma jijiji zuru oke, zere ọdịdị nke mmanụ aṅụ n'elu.

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