Matsaloli a aikace aikace na polycarboxylate ether superplasticizer a cikin kankare injiniya

(Matsaloli a aikace aikace na polycarboxylate ether superplasticizer a kankare injiniya)

1. Shin yanayin ajiya yana shafar aiki da inganci na superplasticizers?

Zazzabi: Ayyukan superplasticizer yana raguwa a ƙananan yanayin zafi. Sabili da haka, a lokacin ajiya, ya kamata a kauce wa ajiyar kayan aiki mai mahimmanci na rage ruwa a cikin ƙananan yanayin zafi kamar yadda zai yiwu. A lokacin rani mai zafi, ya kamata a kula don guje wa adana abubuwan da ke rage yawan ruwa a cikin yanayin zafi mai zafi.

Humidity: Manyan abubuwan da ke rage ruwa mai inganci suna da saukin kamuwa da danshi. Idan superplasticizer ya jika, zai rasa wasu kayansa. Saboda haka, ya kamata a adana superplasticizers a cikin busassun wuri.

Haske: Babban madaidaicin wakili mai rage ruwa yana kula da haske. Idan superplasticizer yana fuskantar hasken rana na dogon lokaci, aikinsa zai ragu. Saboda haka, gwargwadon yiwuwa, ya kamata a adana superplasticizers daga hasken rana kai tsaye.

Oxidation: Superplasticizer yana da saukin kamuwa da iskar shaka, kuma ya kamata a guje wa fallasa iska. Lokacin adana manyan na'urori masu inganci, zaɓi akwati da aka rufe kuma rage iska a cikin akwati.

2. Sakamakon polycarboxylate superplasticizer akan dorewa na kankare

l Rashin cikawa

Rashin rashin daidaituwa na kankare yana da alaƙa da porosity da tsarin pore. Za a iya raba pores a cikin kankare zuwa digiri hudu bisa ga girman pore: <4 ~ 5nm, 5 ~ 50nm, 50 ~ 100nm da> 100nm. Idan juzu'in juzu'i na pores tare da diamita na pore sama da 50nm ya karu, zai sami sakamako mara kyau akan ƙarfi da rashin ƙarfi na kankare; idan juzu'in girma na pores tare da diamita na pore ƙasa da 50nm ya tashi, ƙarfin, rashin ƙarfi, da juriya na siminti za a inganta. A lokaci guda, lokacin da aka haxa siminti tare da polycarboxylate babban mai rage ruwa mai rage ruwa, za a rage yawan simintin ruwa na siminti kuma za a inganta tsarin pore. Wannan zai taimaka ƙara ƙaddamar da tsarin ciki na kankare da kuma rage tashoshi na zubar jini, ta yadda ya kamata ya inganta abubuwan da ba su da kyau na kankare.

l Daskare da narke juriya

Tasirin polycarboxylic acid superplasticizer akan juriya-narkewar kankare yayi kama da na talakawa masu rage ruwa. Lokacin da polycarboxylate wanda ba shi da iska wanda ba shi da iska mai amfani da ruwa mai rage ruwa ya haɗu da shi a cikin kankare, babban tasiri na rage yawan ruwa na mai rage ruwa zai iya rage yawan ruwa-ciminti na siminti. A lokaci guda kuma, dangane da raguwar ruwa mai kyauta wanda za a iya daskarewa a cikin simintin simintin, Yana inganta rashin daidaituwa na siminti, wanda ke da amfani don inganta juriya na daskarewa. Wannan shi ne mafi yawa saboda lokacin da aka haɗu da siminti tare da iska mai ɗaukar iska mai ɗaukar nauyin polycarboxylic mai haɓaka ruwa mai ƙarfi ko wakili mara amfani da polycarboxylic. tasirin tasirin iska na admixture, da kankare Za a gabatar da wani takamaiman adadin masu zaman kansu, ƙananan kumfa, barga a cikin tsarin, wanda zai iya. yadda ya kamata rage taro na fadada matsa lamba lalacewa ta hanyar daskarewa da supercooled gudun hijirar ruwa, game da shi muhimmanci inganta daskare-narke juriya na kankare.

l Resistance zuwa sulfate da chloride lalata

Binciken gwajin injiniya ya gano cewa juriya na lalata da aka haɗe da polycarboxylic acid superplasticizer a kan sulfate da chlorine salts ba shi da bambanci da na kankare tare da na yau da kullun. Kodayake polycarboxylate superplasticizer zai ƙunshi takamaiman adadin sulfate, ƙaƙƙarfan abun ciki na gidan yanar gizo gabaɗaya bai wuce 10% ba kuma ba zai tasiri juriyar daskare-narkewar simintin da aka ba da shawarar ba. A ƙarƙashin yanayi na yau da kullun, ƙari na polycarboxylic acid superplasticizer ba zai yi wani tasiri mai tsatsa ba akan sandunan ƙarfe a cikin siminti mai ƙarfi.

l Karfe-kankare haɗin gwiwa ƙarfi

Don kankare na yau da kullun da kankare mai nauyi, ƙari na polycarboxylate superplasticizer na iya haɓaka ƙarfin haɗin gwiwa na sandunan ƙarfe da kankare. Wasu bayanai sun nuna cewa ga siminti na yau da kullun idan aka yi amfani da lebur zagaye na ƙarfe, ƙari na polycarboxylate superplasticizer na iya ƙara ƙarfin haɗin ƙarfe-kankare na siminti na kwanaki 7 daga 1.2MPa zuwa 3.5MPa; idan aka yi amfani da rebar, Ƙarfin haɗin gwiwa yana ƙaruwa daga 15.0 MPa zuwa 27.5 MPa.

3. Tasirin kayan aikin kankare akan aikin polycarboxylate superplasticizer

l Tasirin ciminti akan polycarboxylate superplasticizer

Akwai bambance-bambance masu mahimmanci tsakanin ma'aikatan rage ruwa na lignosulfonate na yau da kullun, masu rage ruwa na tushen naphthalene da ma'aikatan rage ruwa na tushen polycarboxylic acid. Polycarboxylic acid na tushen rage ruwa yana da fa'ida na kasancewa abokantaka na muhalli, maras haɗari, mai ƙarfi a cikin rarrabuwa, da haɓaka ƙimar rage ruwa, don haka ana amfani da su sosai. Duk da haka, irin wannan nau'in mai rage ruwa shima yana da wasu lahani, kamar rashin daidaituwa, amma wannan kuma wani lahani ne na yau da kullun na masu rage ruwa. Misali, lokacin da ake amfani da wani siminti, slurry na siminti na iya samun rashin ruwa mara kyau da kuma mummunan tasirin rage ruwa. Babban abu na farko na wannan abin mamaki yana fitowa daga tsarin kwayoyin halitta na kayan da kansa. Bugu da ƙari, yana da alaƙa da kaddarorin siminti. Abun da ke ciki da kaddarorin saman.

l Tasirin tara mai kyau akan polycarboxylate superplasticizer

Yashi masana'antu da yashi na halitta akai-akai ana amfani da su azaman babban tari a cikin siminti kuma ɗaya ne daga cikin albarkatun ƙasa don shirya kankare. Yashi na halitta duka ya kasu kashi uku: kogi, tudu, da teku. Duk da haka, dole ne a lura da cewa a cikin aiwatar da shirya kankare, kada ku yi amfani da wata babbar adadin polycarboxylate ruwa wakili. Da zaran ya wuce gona da iri, tabbas zai mayar da martani da tara mai kyau, wanda hakan ba zai shafi tarkacen simintin kawai ba har ma da simintin. Adversely, shi rinjayar da tsanani. Bugu da ƙari, wani muhimmin abu mai mahimmanci wanda ya shafi daidaitawar siminti da polycarboxylate masu rage ruwa shine abun ciki na dutse foda a cikin yashi. Idan ana amfani da yashi tare da babban abun ciki na dutse a cikin aikin shirya kankare, yana yiwuwa a sami tarin sakamako a kan ruwa na simintin.

Har ila yau, wasu halaye na tarawa masu kyau za su kuma yi tasiri ga versatility na siminti da polycarboxylic acid-tushen wakilai masu rage ruwa, kamar yawan yashi. Yawancin lokaci magana, idan kyawun yashi ya fi ƙanƙanta fiye da ƙima na yau da kullun, simintin zai jure da saurin asarar ruwa. A lokaci guda, yawan yashi da ragowar sulfates da ions chloride a cikin yashin teku za su yi tasiri ga tsarin rage ruwa na polycarboxylic acid. Daidaitawar wakili zai sami tasiri na musamman. Baya ga abubuwan da ke sama, abun cikin laka a cikin yashi da tsakuwa kuma zai shafi daidaitawa da aiki na wakili na rage ruwa na polycarboxylate. Wannan shi ne gabaɗaya saboda datti yana da ƙarfin adsorption mai ƙarfi, wanda zai rinjayi ruwa, rage farashin wakilin ragewar ruwa. Hakanan abun ciki na laka zai bambanta don kayan daban-daban. Gabaɗaya magana, abun cikin ƙasa a cikin yashi da tsakuwa zai yi tasiri sosai ga ma'aunin rage ruwa na polycarboxylate. Lokacin da abun ciki na laka a cikin yashi da tsakuwa ya wuce 3%, aikin mai rage ruwa zai ragu sosai. , har ma da ƙara adadin da ya dace na cakuda ba zai inganta yawan ruwa na kankare ba.

l Tasirin tarin tarin yawa akan polycarboxylate superplasticizer

Wani abu mai mahimmanci da ke shafar polycarboxylate superplasticizers shine juzu'i mai ƙarfi. Ana nuna wannan wasan kwaikwayon a cikin matsayi na duwatsu da abun cikin gidan yanar gizon allura. Ko da duwatsun da suke da gradation iri ɗaya, idan kayan allura-flake na duwatsun ya ƙaru, to babu makawa adadin simintin zai ragu, kuma raguwar ci gaba na iya haifar da zubar jini ko rabuwa. Bugu da ƙari, ƙimar shayar da ruwa na tari mai ƙarfi tare da yawa daban-daban tabbas shima zai kasance daban-daban. Yawancin lokaci, kyakkyawan shayar da ruwa ya fi na rugged. Ko da an canza kayan iska ko sashi na wakili mai rage ruwa, ba za a iya cimma manufar da ake tsammani ba. Kawai ta hanyar gyara mahaɗin, ana iya canza rabon kankare. Sabili da haka, a lokacin aikin gine-gine na ainihi, ya zama dole a koyaushe daidaita gyare-gyaren dutse da laka na yashi bisa ga ainihin yanayin albarkatun kasa da kuma neman mafita mafi kyau.

Maroki

TRUNNANO shine mai siyar da siminti superplasticizer, wanda siminti ne kuma samfuran dangi tare da gogewar shekaru sama da 12 a cikin kiyaye makamashin nano-gini da haɓaka fasahar nanotechnology. Yana karɓar biyan kuɗi ta hanyar Katin Kiredit, T / T, West Union da Paypal. Trunnano zai jigilar kaya zuwa abokan ciniki a ketare ta hanyar FedEx, DHL, ta iska, ko ta ruwa. Idan kana neman siminti mai inganci mai inganci, da fatan za a iya tuntuɓar mu kuma ka aiko da tambaya. (sales@cabr-concrete.com).

(Matsaloli a aikace aikace na polycarboxylate ether superplasticizer a kankare injiniya)