1, sample
A ga-enyocha simenti buru ibu site na onye na-ebu simenti tupu etinye ya n'ime silo gbọmgbọm.Maka simenti akpa, ekwesịrị iji ihe nlele mee ihe na-erughị akpa ciment 10.Mgbe ị na-anwale, a ga-enyocha ciment ahụ n'anya maka mmiri agglutination.Maka akpa ciment, akpa 10 kwesịrị ịhọrọ nke ọma iji tụọ ma gbakọọ nkezi arọ na mbata ọ bụla.
2. Ọnọdụ ule
The laabu okpomọkụ bụ 20 ± 2 ℃, ikwu iru mmiri ekwesịghị ịbụ ihe na-erughị 50%;Okpomọkụ nke ihe nlele ciment, mmiri na-agwakọta, ngwá ọrụ na ngwa kwesịrị ịdị na nke ụlọ nyocha;
Okpomọkụ nke igbe ọgwụgwọ mmiri bụ 20 ± 1 ℃, na iru mmiri dị n'okpuru 90%.
3. Mkpebi nke oriri mmiri maka ọkọlọtọ GB / T1346-2001
3.1 Ngwa na akụrụngwa: igwekota ciment tapawa, ngwa vica
3.2 Wet na ngwá na akụrụngwa na mmiri ákwà, tụọ 500g nke ciment, wụsa ya na mmiri n'ime 5 ~ 10s, malite igwekota, ala ọsọ agwakọta 120s, kwụsị maka 15s, na elu na-agbakọta 120s kwụsị.
3.3 Usoro nha:
Mgbe agwakọta, ozugbo mix ọma ciment net slurry n'ime ule ebu ka etinyere na iko ala efere, fanye na paụnd na mma, jiri nwayọọ maa jijiji ọtụtụ ugboro, kpochapụ ihe ngafe net slurry;Mgbe emechara ọkwa ahụ, a na-ebugharị ihe nlere ule na efere ala na ngwa veka, a na-edozi etiti ya n'okpuru ebe a na-anwale ule, a na-agbadakwa ihe nlele ahụ ruo mgbe ọ na-akpọtụrụ n'elu ciment net slurry.Mgbe emechara kposara ahụ maka 1s ~ 2s, ọ na-adị jụụ na mberede, nke mere na mmanya ule ahụ na-adaba n'ụzọ kwụ ọtọ na kpamkpam n'ime cement net slurry.Dekọọ ebe dị n'etiti lever ule na efere ala mgbe lever ule kwụsịrị imi mmiri ma ọ bụ hapụ lever ule maka sekọnd 30.Ekwesịrị ịrụcha ọrụ niile n'ime nkeji 1.5.Ụkpụrụ ọkọlọtọ nke ciment slurry bụ ciment slurry nke na-emikpu n'ime mkpanaka ule na 6 ± 1mm pụọ na efere ala.Ọnụ ọgụgụ nke mmiri a na-eji agwakọta bụ ụkpụrụ nke ciment (P), gbakọọ dị ka pasent nke ciment uka.
4. Mkpebi nke ịtọ oge GB/T1346-2001
Nkwadebe nke sample: ọkọlọtọ anọgidesi net slurry mere nke mmiri na ọkọlọtọ anọgidesi jupụtara ule ebu n'otu oge, scraped mgbe ọtụtụ ugboro nke vibration, na ozugbo tinye n'ime mmiri ọgwụgwọ igbe.Dekọọ oge mgbe a na-agbakwunye ciment na mmiri dị ka oge mmalite nke ịtọ oge.
Mkpebi nke oge ntọala mbụ: a gwọrọ ihe nlere anya n'ime igbe na-agwọ mmiri ruo 30min ka agbakwunyere mmiri na nke mbụ.Mgbe agịga ule na-adaba na ala 4 ± 1mm, ciment ahụ ruru ọnọdụ ntọala mbụ;Oge site na ịgbakwụnye ciment n'ime mmiri ruo na ọnọdụ ntọala mbụ bụ oge ntọala mbụ nke ciment, gosipụtara na "min".
Mkpebi nke oge ntọala ikpeazụ: mgbe mkpebi nke oge ntọala mbụ, wepụ ihe nlele ozugbo na slurry site na efere iko site na ntụgharị, wee tụgharịa 180 °.Dayameta nke nnukwu njedebe, obere njedebe na efere iko, gbakwunye igbe na-agwọ mmiri na-edozi, na nso nsonye oge nhazi oge ikpeazụ, otu ugboro kwa 15 min, mgbe ị na-agbalị agịga n'ime ahụ nke 0.5 mm, ya bụ mgbanaka mgbanaka malitere enweghị ike ịhapụ akara. gbalịa ahụ, iru ikpeazụ set ọnọdụ ciment, simenti tinye mmiri ruo mgbe ọnọdụ nke ikpeazụ set oge nke ikpeazụ ntọala oge nke ciment, Uru bụ min.
E kwesịrị ilebara anya na mkpebi siri ike, na mkpebi mbụ nke ọrụ ahụ kwesịrị iji nwayọọ kwado kọlụm metal ahụ, nke mere na ọ na-eji nwayọọ nwayọọ na-agbada, iji gbochie nkwụsịtụ nkuchi ule ule, ma n'ihi bụ free ọdịda ga-emeri;N'oge usoro ule niile, ọnọdụ nke agịga na-agba mmiri kwesịrị ịdịkarịa ala 10mm site na mgbidi dị n'ime nke ebu.Mgbe ntọala mbụ dị nso, a ga-atụ ya ihe ọ bụla 5min, na mgbe oge nhazi ikpeazụ dị nso, a ga-atụ ya kwa nkeji 15 ọ bụla.Mgbe etinyere ntọala mbụ ma ọ bụ ntọala ikpeazụ, ekwesịrị ịtụtụrụ ya ọzọ ozugbo.Mgbe nkwubi okwu abụọ ahụ bụ otu, enwere ike ikpebi ya dị ka irute ntọala mbụ ma ọ bụ ọnọdụ ntọala ikpeazụ.Nnwale ọ bụla enweghị ike ikwe ka agịga ahụ daa n'ime pinhole mbụ, usoro nyocha dum iji gbochie ịma jijiji nke ebu.
5. Mkpebi nke nkwụsi ike GB / T1346-2001
Ịkpụzi ihe atụ: tinye clip Reisler a kwadebere na efere iko mmanụ dị ntakịrị, wee jupụta ozugbo ọkọlọtọ akwadoro dị ọcha na Reisler otu ugboro, fanye ma kpatụ ya ọtụtụ oge na mma dị ihe dị ka 10mm n'obosara, wee hichaa ya dị larịị, kpuchie ntakịrị. efere iko mmanụ, ma bugharịa ihe nlele ozugbo na igbe mmiri na-agwọ mmiri maka 24± 2h.
Wepu efere iko ma wepụ ihe nlele ahụ.Buru ụzọ tụọ anya dị n'etiti ntụnye ntụnye nke mgbachi Reefer (A), ziri ezi ruo 0.5mm.Tinye ihe atụ abụọ ahụ na akwa ule n'ime mmiri esi mmiri na pointer chere ihu, wee kpoo ha ka ọ sie na 30± 5min ma nọgide na-esi nri maka 180± 5min.
Nsonaazụ ịkpa ókè: Mgbe esichara, hapụ mmiri dị n'ime igbe ahụ, mgbe igbe ahụ dị jụụ, wepụta ihe atụ maka nha, anya nke pointer n'ọnụ (C), ziri ezi ruo 0.5mm.Mgbe ọnụ ọgụgụ dị elu nke ịdị elu (CA) dị n'etiti ihe atụ abụọ ahụ abụghị ihe karịrị 5.0mm, a na-ewere na nkwụsi ike ciment ruru eru.Mgbe ọdịiche nke uru (CA) dị n'etiti ụdị abụọ ahụ karịrị 4.0mm, a ga-anwale otu ihe nlele ozugbo.N'okwu a, a na-ewere nkwụsi ike ciment erughị eru.
6, usoro nyocha nke ụrọ simenti GB/T17671-1999
6.1 ngwakọta ruru
Ngwakọta mma nke ngwa agha kwesịrị ịbụ otu akụkụ ciment, akụkụ atọ ọkọlọtọ ọkọlọtọ na ọkara akụkụ mmiri (mmiri ciment ruru 0,5).Concrete ciment 450g, 1350g ọkọlọtọ ájá, mmiri 225 g.Izi ezi nke nguzozi kwesịrị ịbụ ± 1g.
6.2 agba
A na-eji blender na-akpali ite ọ bụla nke ájá gluu.Tinye mixer na ọnọdụ ọrụ mbụ, wee soro usoro ndị a: tinye mmiri na ite ahụ, tinyezie ciment, tinye ite ahụ na njide, bilie n'ọnọdụ a kapịrị ọnụ.Mgbe ahụ malite igwe, obere ọsọ na-agwakọta 30s, nke abụọ 30s malitere n'otu oge ahụ iji tinye ájá ájá, gbanwee igwe ahụ ka ọ bụrụ nnukwu ọsọ na-agwakọta 30s, kwụsị ịgwakọta 90s, wee na-agwakọta ọsọ dị elu 60s, ngụkọta nke 240s.
6.3 Nkwadebe nke ụdị
Nha ihe atụ kwesịrị ịbụ 40mm × 40mm × 160mm prism.
Akpụ na tebụl ịma jijiji
Ozugbo nkwadebe nke ngwa agha ịkpụzi, na ihe kwesịrị ekwesị ngaji ozugbo site na-akpali akpali ite ga-ekewa abụọ n'ígwé ngwa agha n'ime ule ebu, nke mbụ oyi akwa, onye ọ bụla tank banyere 300g ngwa agha, na nnukwu feeder vetikal etiti n'elu. na ebu cover tinyere n'elu ule ebu tinyere onye ọ bụla uzo azụ na pụta ozugbo ihe oyi akwa na-seeded ewepụghị, mgbe ahụ, vibration 60 ugboro.Mgbe ahụ, buo akwa nke abụọ nke ngwa agha, were obere nri kụọ ya larịị, ma maa jijiji ugboro 60.Na a metal na-achị ka mkpokọta 90 ° Angle etiti n'elu ule ebu, na mgbe ahụ, tinyere ogologo ntụziaka nke ule ebu na transverse sawing edinam nwayọọ nwayọọ na njedebe nke ọzọ nke ije, a karịa ule ebu akụkụ nke ájá scraping, na otu onye na-achị na-fọrọ nke nta larịị n'elu nke ule ahụ.
6.4 Ngwọta nke ụdị
A ga-etinye mpempe ule akara n'ime igbe simenti ọkọlọtọ ọgwụgwọ, gbadaa n'etiti awa 20-24.A na-edobe ihe nrịbama ahụ ozugbo ma ọ bụ kwụ ọtọ n'ime mmiri na 20 ℃ ± 1 ℃ maka mmezi, ụgbọ elu na-ekpochapụ kwesịrị ịdị elu mgbe etinyere ya n'ahịrị.
6.5 Nnwale na nyocha ike
Nnwale ike na-ehulata:
A tụlere ike mgbanwe site na usoro ntinye etiti yana igwe nyocha ike mgbanwe.Emere ule mkpakọ na prism gbajiri agbaji site n'itinye ya na ihe nleba anya ike.Elu mkpakọ bụ akụkụ abụọ nke ahụ nnwale mgbe emebere ya, yana mpaghara 40mm × 40mm.(A na-agụ ya na 0.1mpa)
Ike mgbanwe bụ ịgụ ihe ozugbo na igwe nnwale, unit (MPa)
Ike mkpakọ Rc (zie ezie na 0.1mpa) Rc = FC/A
Ibu kacha na ọdịda Fc—-,
A—- Mpaghara mkpakọ, mm2 (40mm×40mm=1600mm2)
Ntụle ike mgbanwe:
A na-ewere nkezi uru nke nguzogide mgbanwe nke otu prisms atọ dị ka nsonaazụ nnwale.Mgbe ụkpụrụ ike atọ gafere nkezi uru nke ± 10%, nkezi uru kwesịrị iwepụ dị ka nsonaazụ ule ike mgbanwe.
Ntụle ike mkpakọ: uru nyocha mgbakọ na mwepụ nke ụkpụrụ ike mkpakọ isii enwetara na set nke prisms atọ bụ nsonaazụ ule.Ọ bụrụ na otu n'ime ụkpụrụ isii a tụrụ atụ karịa ± 10% nke ụkpụrụ isii pụtara, a ga-ewepụ nsonaazụ ya wee were ụkpụrụ ise fọdụrụnụ.Ọ bụrụ na ọtụtụ n'ime ụkpụrụ ise atụtara gafere ihe ha pụtara ±10%, usoro nsonaazụ ga-emebi.
7, usoro nyocha nke ọma (usoro nyocha sieve 80μm) GB1345-2005
7.1 Ngwa: ihuenyo ule 80μm, ngwaọrụ nyocha ihuenyo na-adịghị mma, nguzozi (uru nkerisi abụghị ihe karịrị 0.05g)
7.2 Usoro nyocha: tụọ ciment 25g, tinye ya na sieve nrụgide na-adịghị mma, kpuchie mkpuchi sieve, tinye ya na ntọala sieve, gbanwee nrụgide na-adịghị mma na oke nke 4000 ~ 6000Pa.Mgbe nyocha nyocha, ọ bụrụ na etinyere na mkpuchi ihuenyo, ị nwere ike jiri nwayọọ kụọ aka, ka ihe atụ ahụ wee daa, mgbe nyochachara, jiri nguzozi tụọ ihe fọdụrụ na ihuenyo ahụ.
7.3 Ngụkọta nsonaazụ ka a na-agbakọ pasentị fọdụrụ nke simenti sieve dị ka ndị a:
F bụ RS/W ugboro 100
Ebe: F - pasent sieve fọdụrụnụ nke cement sample,%;
RS - Mass nke cement screen residue, G;
W - uka nke cement sample, G.
A na-agbakọ nsonaazụ ya na 0.1%.
A ga-atụle ihe nlele ọ bụla na nlele abụọ ga-enyocha ya iche, a ga-ewerekwa nkezi uru nke ihe ndị fọdụrụ dị ka nsonaazụ nyocha nyocha.Ọ bụrụ na njehie zuru oke nke nsonaazụ nyocha abụọ ahụ karịrị 0.5% (ọ bụrụ na uru ihe nyocha ahụ karịrị 5.0%, enwere ike itinye ya na 1.0%), a ga-eme ule ọzọ, yana akara mgbakọ na mwepụ nke nsonaazụ abụọ yiri ya. ekwesịrị iwere ya dị ka nsonaazụ ikpeazụ.
8, simenti ọcha dị ọcha
Mgbe ị na-eme nlele, a ga-atụba ọcha na agba simenti n'anya wee jiri ya tụnyere ọcha.
Oge nzipu: Dec-06-2021