Nchịkọta:A mụrụ mmetụta dị iche iche nke hydroxypropyl methylcellulose ether nwere na ihe ndị dị na mortar akọrọ akọrọ. Nsonaazụ ya gosiri na: ka ọdịnaya nke cellulose ether mụbara, njupụta na njupụta ahụ belatara, oge ntọala ahụ belatara. Mgbatị ahụ, ike nrụgide 7d na 28d belatara, mana arụmọrụ dum nke mortar akọrọ agwakọtara amụbaala.
0. Okwu Mmalite
Na 2007, ministri na kọmishọna isii nke mba ahụ wepụtara "Ọkwa Maka Ịmachibido Ngwakọta Ngwakọta Ngwakọta n'Ebe Ọrụ n'Obodo Ụfọdụ n'ime Oge A Na-atụ Anya". Ugbu a, obodo 127 n'ofe mba ahụ arụọla ọrụ nke "machibidoro ngwa ahịa dị adị", nke butere mmepe a na-ahụtụbeghị mbụ na mmepe nke ngwa ahịa ngwa ahịa ngwa ahịa kpọrọ nkụ. Site na mmepe siri ike nke ngwa ahịa ngwa ahịa ngwa ahịa kpọrọ nkụ n'ahịa owuwu ụlọ na mba ofesi, ọtụtụ ngwa ahịa ngwa ahịa ngwa ahịa akpọnwụwo abanyekwala n'ụlọ ọrụ a na-emepe emepe, mana ụfọdụ ụlọ ọrụ mmepụta ngwa ahịa ngwa ahịa na ire ere na-eme ka ngwaahịa ha dịkwuo mma, na-eduhie ụlọ ọrụ ngwa ahịa ngwa ahịa ngwa ahịa akpọnwụwo. mmepe dị mma na nke dị n'usoro. Ugbu a, dị ka ngwa ahịa ngwa ahịa kọnkịrị, ngwa ahịa ngwa ahịa ngwa ahịa akpọnwụwo na-ejikarị eme ihe, ọ dịkwa ole na ole ka a na-eji naanị ha. Karịsịa, e nwere ọtụtụ ụdị ngwakọta dị iche iche n'ime ụfọdụ ngwa agha akọrọ na-arụ ọrụ, mana n'ime ngwa agha akọrọ na-arụ ọrụ, ọ dịghị mkpa ịchụso ọnụọgụ ngwakọta dị iche iche, mana a ga-eleba anya nke ọma n'otú o si arụ ọrụ na otú o si arụ ọrụ, iji zere iji ngwa agha akọrọ eme ihe gabiga ókè, na-akpata ihe mkpofu na-adịghị mkpa, na ọbụna na-emetụta ịdị mma nke ọrụ ahụ. N'ime ngwa agha akọrọ na-arụ ọrụ nke idobe mmiri, ịka nká, na imeziwanye arụmọrụ owuwu. Ezigbo arụmọrụ idobe mmiri na-eme ka o doo anya na ngwa agha akọrọ agaghị eme ka ájá, ntụ ntụ na mbelata ike n'ihi ụkọ mmiri na mmiri simenti zuru oke; mmetụta nke ọkpụrụkpụ na-eme ka ike nhazi nke ngwa agha mmiri dịkwuo mma nke ukwuu. Akwụkwọ a na-eme nnyocha usoro gbasara itinye cellulose ether na ngwa agha akọrọ na-arụ ọrụ nkịtị, nke nwere ihe nduzi dị mkpa maka otu esi eji ngwa agha akọrọ eme ihe nke ọma na ngwa agha akọrọ nkịtị.
1. Ihe eji arụ ọrụ na ụzọ eji eme ihe n'ule ahụ
1.1 Ihe eji eme ihe maka ule ahụ
Simenti ahụ bụ simenti P. 042.5, ntụ ntụ ahụ bụ ntụ Klas nke Abụọ sitere na ụlọ ọrụ ike dị na Taiyuan, ihe dị nro bụ ájá osimiri kpọrọ nkụ nke nha ya bụ 5 mm ma ọ bụ karịa, modulus dị nro bụ 2.6, ebe a na-ere cellulose ether hydroxypropyl methyl cellulose ether (viscosity 12000 MPa·s).
1.2 Usoro nnwale
E mere nkwadebe na nnwale arụmọrụ dịka usoro nnwale arụmọrụ JCJ/T 70-2009 nke JCJ/T si dị.
2. Atụmatụ nnwale
2.1 Usoro maka ule ahụ
N'ule a, a na-eji ọnụọgụ nke ihe e ji arụ ọrụ nke otu tọn nke ihe e ji eme ihe n'ime ite ụrọ akọrọ dị ka usoro bụ isi maka ule ahụ, mmiri ahụ bụkwa mmiri nke otu tọn nke ihe e ji eme ihe n'ime ite ụrọ akọrọ.
2.2 Atụmatụ akọwapụtara
Site na iji usoro a, ọnụọgụ hydroxypropyl methylcellulose ether agbakwunyere na tọn ọ bụla nke ngwa agha akọrọ akọrọ bụ: 0.0 kg/t, 0.1 kg/t, 0.2 kg/t, 0.3 kg/t, 0.4 kg/tt, 0.6 kg/t, iji mụọ mmetụta nke usoro dị iche iche nke hydroxypropyl methylcellulose ether na njigide mmiri, nguzozi, njupụta doro anya, oge ntọala, na ike nrụgide nke ngwa agha akọrọ akọrọ akọrọ nkịtị, iji duzie ngwa agha akọrọ. Ojiji ziri ezi nke ngwa agha akọrọ nwere ike ịghọta uru nke usoro mmepụta ngwa agha akọrọ dị mfe, owuwu dị mma, nchedo gburugburu ebe obibi na ịchekwa ike.
3. Nsonaazụ na nyocha nke ule
3.1 Nsonaazụ ule
Mmetụta nke usoro dị iche iche nke hydroxypropyl methylcellulose ether na njigide mmiri, nguzozi, njupụta doro anya, oge ntọala, na ike nrụgide nke ngwa ihe eji eme ihe akọrọ akọrọ.
3.2 Nyocha nke nsonaazụ
A pụrụ ịhụ ya site na mmetụta nke usoro dị iche iche nke hydroxypropyl methylcellulose ether na njigide mmiri, nguzozi, njupụta doro anya, oge ntọala, na ike nrụgide nke ngwa plasta akọrọ akọrọ nkịtị. Ka ọdịnaya cellulose ether na-abawanye, ọnụego njigide mmiri nke ngwa mmiri na-amụbakwa nwayọ nwayọ, site na 86.2% mgbe agwakọtaghị hydroxypropyl methyl cellulose, ruo 0.6% mgbe agwakọtara hydroxypropyl methyl cellulose. Ọnụego njigide mmiri ruru 96.3%, nke na-egosi na mmetụta njigide mmiri nke propyl methyl cellulose ether dị mma nke ukwuu; nguzozi ahụ na-ebelata nwayọ nwayọ n'okpuru mmetụta njigide mmiri nke propyl methyl cellulose ether (oriri mmiri kwa tọn nke ngwa agha anaghị agbanwe agbanwe n'oge nnwale ahụ); Njupụta doro anya na-egosi usoro ọdịda, na-egosi na mmetụta njigide mmiri nke propyl methyl cellulose ether na-eme ka olu nke ngwa mmiri dị elu ma na-ebelata njupụta; Oge nhazi ahụ na-agbatị nwayọọ nwayọọ ka ọdịnaya nke hydroxypropyl methyl cellulose ether na-abawanye, yana ọdịnaya nke Mgbe ọ ruru 0.4%, ọ gafere uru akọwapụtara nke awa 8 nke ọkọlọtọ chọrọ, na-egosi na ojiji kwesịrị ekwesị nke hydroxypropyl methylcellulose ether nwere mmetụta dị mma na oge ọrụ nke mortar mmiri; ike nrụgide nke 7d na 28d ebelatala (Ka dose ahụ na-abawanye, otú ahụ ka mbelata ahụ na-apụta ìhè). Nke a metụtara mmụba nke olu mortar na mbelata na njupụta doro anya. Mgbakwunye nke hydroxypropyl methyl cellulose ether nwere ike ịmepụta oghere mechiri emechi n'ime mortar siri ike n'oge ntọala na ike nke mortar. Micropores na-eme ka mortar sie ike.
4. Ihe ndị a ga-eme iji gbochie nsogbu nke cellulose ether n'ime ihe e ji agwakọta ihe nkịtị.
1) Nhọrọ nke ngwaahịa cellulose ether. N'ozuzu, ka cellulose ether na-agba ọsọ nke ukwuu, otú ahụ ka mmetụta ya na-agba mmiri ka mma, mana ka viscosity dị elu, otú ahụ ka ọ na-agbaze ngwa ngwa, nke na-emebi ike na arụmọrụ owuwu nke moto ahụ; ịdị mma nke cellulose ether dị obere na moto akọrọ. A na-ekwu na ka ọ na-agbaze ngwa ngwa, otú ahụ ka ọ na-adị mfe ịgbaze. N'okpuru otu dose ahụ, otú ahụ ka ịdị mma ahụ si dị, otú ahụ ka mmetụta nchekwa mmiri ka mma.
2) Nhọrọ nke dose cellulose ether. Site na nsonaazụ nnwale na nyocha nke mmetụta nke ọdịnaya nke cellulose ether na arụmọrụ nke plastering ngwakọta akọrọ, enwere ike ịhụ na ka ọdịnaya nke cellulose ether dị elu, ka mma, a ga-atụle ya site na ọnụ ahịa mmepụta, ogo ngwaahịa, arụmọrụ owuwu na akụkụ anọ nke gburugburu ebe obibi iji họrọ usoro kwesịrị ekwesị nke ọma. Usoro nke hydroxypropyl methyl cellulose ether na ngwa agha akọrọ nkịtị bụ ọkacha mma 0.1 kg/t-0.3 kg/t, mmetụta njide mmiri enweghịkwa ike iru ihe achọrọ ọkọlọtọ ma ọ bụrụ na etinyere ego nke hydroxypropyl methyl cellulose ether na obere ego. Ihe ọghọm dị mma; usoro nke hydroxypropyl methyl cellulose ether na ngwa agha pụrụ iche na-eguzogide mgbawa bụ ihe dị ka 3 kg/t.
3) Itinye cellulose ether n'ime ụrọ nkịtị a gwakọtara agwakọta. N'ime usoro ịkwadebe ụrọ nkịtị a gwakọtara agwakọta, enwere ike itinye ngwakọta kwesịrị ekwesị, ọkacha mma na mmetụta njigide mmiri na-eme ka ọ sie ike, ka o wee nwee ike ịmepụta mmetụta njikọta na cellulose ether, belata ọnụ ahịa mmepụta, ma chekwaa akụrụngwa; ọ bụrụ na ejiri ya naanị ya. Maka cellulose ether, ike njikọ agaghị emezu ihe achọrọ, enwere ike ịgbakwunye oke ntụ ntụ latex a na-emegharị emegharị; n'ihi obere ọnụọgụ ngwakọta mortar, njehie nha dị ukwuu mgbe ejiri ya naanị ya. Ogo nke ngwaahịa mortar a gwakọtara agwakọta.
5. Mmechi na aro
1) N'ime ihe e ji eme ihe n ...
2) N'oge a na-akwadebe ngwa agha akọrọ nkịtị, a ga-ahọrọ cellulose ether nwere viscosity na ịdị mma kwesịrị ekwesị, a ga-ekpebikwa ọnụọgụ ya site na nnwale. N'ihi obere ngwakọta ngwa agha, njehie nha dị ukwuu mgbe ejiri ya naanị ya. A na-atụ aro ka ị gwakọta ya na ihe na-ebu ya, wee mụbaa ọnụọgụ mgbakwunye iji hụ na ngwaahịa ngwa agha akọrọ dị mma.
3) Ngwakọta ụrọ kpọrọ nkụ bụ ụlọ ọrụ na-apụta ìhè na Chaịna. N'usoro iji ngwakọta ụrọ, anyị ekwesịghị ịchọ ọnụọgụgụ n'enweghị ihe mgbochi, kama anyị ga-elebara ịdị mma anya ma belata ọnụ ahịa mmepụta, gbaa ume ka e jiri ihe mkpofu ụlọ ọrụ mmepụta ihe mee ihe, ma nweta n'ezie nchekwa ike na mbelata oriri.
Oge ozi: Febụwarị-22-2023