Abubuwan Kariyar Kankare Masu Sauƙi | Mahimman Ayyuka Masu Kumfa don Kankalin Salon salula
Me yasa na Sauya zuwa RDP Powder-kuma Ban Taba Komawa ba
Har yanzu ina tunawa da safe. 2004, wani lebur rufin a Munich. Abokin ciniki ya yi amfani da daidaitaccen siminti turmi shekarar da ta gabata. Fashe ko'ina. Ruwa ya taru a kusurwa kamar wani karamin tabki mai bakin ciki.
Ranar da na koyi hanya mai wuyar gaske: turmi siminti na yau da kullun ba tare da a polymer mai gyara ba kayan hana ruwa bane. Soso ne.
Jagora na, wani tsohon masanin kimiyar kasar Jamus mai suna Klaus, miko min karamar buhun farin foda. “Wannan,” Yace, “shine RDP foda don siminti tushen hana ruwa. Yi amfani da shi daidai, kuma ruwan ya tsaya waje. Yi amfani da shi ba daidai ba, kuma za ku dawo nan shekara mai zuwa.”
Ban taba waiwaya ba. Yau, Ina so in ba ku magana madaidaiciya daidai da Klaus ya yi mini. Babu miya. Babu talla. Kawai abin da ke aiki.
1. Fahimci Abin da RDP Powder yake (kuma ba)
polymer mai sakewa foda (RDP) polymer ne mai bushewa. Daidai. Ba siminti ba ne. Ba fiber ba ne. bushewa ce, guduro mai gudana kyauta wanda ke sake yin ruwa idan an gauraye shi da ruwa a cikin turmi na ku.
Da zarar siminti hydrates, ɓangarorin RDP suna fuse cikin fim mai ci gaba. Wannan fim ɗin yana da sassauƙa. Yana gada micro-fasa. Yana toshe ruwa.
- Abun ciki: Yawanci copolymer na vinyl acetate da ethylene (KAFAFA), ko acrylic-tushen don babban aiki formulations.
- Girman barbashi: 50–200 microns a matsayin busasshen foda.
- zafin halittar fim: Yawancin nau'ikan RDP suna samar da fim sama da 0 ° C. Duba takardar bayanan fasaha (TDS) don takamaiman samfurin ku.
Kada ka ruɗa RDP da latex na ruwa ko SB latex. Waɗannan su ne rigar emulsions. RDP busasshen foda ne. Nasa ne a cikin bushe-mix shuka ko jakar da za ka iya adana a kan shiryayye na tsawon watanni.
2. Auna Madaidaicin Sashin-Babu Zato
Klaus yana da doka: auna komai. Babu bugun ido.
Mafi kyawun sashi na RDP foda don siminti tushen hana ruwa ya fito daga 2% ku 6% da nauyin siminti. Don yawancin aikace-aikace na yau da kullun (bandakuna, baranda, rufin rufin), 3- 4% shine wuri mai dadi.
Tafi ƙasa 2%, kuma fim din yayi siriri sosai. Kararrawa za su yi. Tafi sama 6%, kuma kuna haɗarin m, a hankali saitin rikici.
| Aikace-aikace | RDP % ta Cement Weight | Tsawaita Tsammani (Saukewa: ASTM C1305) |
|---|---|---|
| Na cikin gida skim gashi hana ruwa | 2.5 - 3.5% | 20 - 40% |
| baranda na waje ko rufin rufin | 3.5 - 5.0% | 40 - 70% |
| Ƙarƙashin ruwa na ƙasa (matsanancin ruwa) | 5.0 - 6.0% | 60 - 100% |
Tushen raka'a: Idan kuna da a 50 kg buhun siminti, kuma burin ku shine 4% RDP, ƙara daidai 2.0 kilogiram na RDP foda. Yi amfani da ma'auni. Ma'aunin kicin yana aiki don ƙananan batches. Don manyan batches, yi amfani da ma'aunin masana'antu da aka daidaita.
3. Mix a cikin Daidaitaccen tsari
Oda al'amura. Idan kun fara jefa RDP cikin ruwa, kuna samun dunƙulewa. Kullun mara kyau.
Anan ga tsarin haɗe-haɗe na mataki-mataki da na yi amfani da su akan 200 wuraren aiki:
- Bushewar cakuda farko. A cikin akwati mai tsabta, hada simintin ku, yashi (0.1- 0.5 mm yashi silica mai daraja mafi kyau), da RDP foda. Mix don 2 mintuna har sai launin ya zama uniform.
- Ƙara 80% na ruwa. Yi amfani da ruwa mai tsabta a 20°C ± 5°C. Fara mahaɗin a ƙananan gudu (200- 300 RPM).
- Mix don 3 mintuna. Goge tarnaƙi da ƙasa tare da tawul. Ƙara sauran 20% ruwa idan daidaito ya dubi m.
- Haɗin ƙarshe don 2 mintuna a matsakaicin gudu (400- 600 RPM). Turmi ya zama mai tsami, ba gudu ba.
Mahimmanci: Bari turmi ya huta don 5 mintuna. Ana kiran wannan “slaking.” Sa'an nan kuma motsa a hankali don 30 seconds. Aiwatar nan da nan. Kada a ƙara ruwa bayan slaking.
4. Aiwatar da Kayan Aikin Dama da Kauri
Haɗin ku yana da kyau. Yanzu kar a lalata shi da mummunan aikace-aikacen.
- Goge: Mafi kyau ga ƙananan yankuna da sasanninta. Yi amfani da goga na nailan mai tauri. Tufafi biyu, ketare a 90 digiri.
- Roller: Mafi kyau ga filaye masu lebur. Yi amfani da abin nadi na mohair matsakaici-nap. Kar a yi jujjuyawa. Wuce biyu kawai.
- Fesa: Don manyan rufin rufi ko bango. Yi amfani da famfon piston tare da bututun feshi. Saka cikakken PPE. Atomization matsa lamba: 0.4- 0.6 MPa.
Ko da kayan aiki, tambaya a ciki riguna biyu. Tufafin farko: 1.0 - 1.2 mm rigar fim kauri. Bari ya bushe don 4-6 hours (da 23°C, 50% RH). Gashi na biyu: 1.0 - 1.2 mm rigar fim kauri. Jimlar bushe fim kauri: 1.5 - 2.0 mm.
Kar a shafa fiye da haka 2.5 mm rigar a cikin riga ɗaya. Zai tsaga. Amince da ni, Ina da hotuna don tabbatar da shi.
5. Magani Da Kyau—Ko Kalli Ya Kasa
RDP foda don ciminti tushen hana ruwa yana buƙatar ingantaccen magani don samar da fim ɗin polymer mai ci gaba. Ruwan siminti da samar da fim ɗin polymer suna faruwa lokaci guda. Rushe daya, kuma ka rasa ɗayan.
Rana 1: Rike saman da aka lulluɓe ya zama m. Zuba shi da ruwa kowane 4 hours. Ko kuma a rufe da rigar burla. Kar a bar shi ya bushe da sauri. Zazzabi: 10-30°C.
Rana ta 2-3: Ajiye shi. Babu rana kai tsaye. Babu ruwan sama. Don ayyukan waje, tanti yankin da roba sheeting.
Rana ta 4-7: Yanayin yanayi na al'ada. Fim ɗin polymer ya ci gaba da haɗuwa. Cikakken juriya na ruwa yana tasowa bayan 7 kwanaki. Gwaji tare da gwajin tunani (25 mm zurfin ruwa don 24 hours) a rana 8.
Doka mai wuya da sauri: idan za ku iya karce saman da farcen yatsa a rana 2, maganin ka ya bushe sosai. Ƙara danshi.
6. Daidaita Kallon-Polymer, Siminti, da Additives
Ba duk siminti ba ne ke yin irin wannan tare da RDP. Ga abin da na koya a nahiyoyi uku:
- Nau'in siminti: Simintin Portland na yau da kullun (OPC) CEM I 42.5 yana aiki mara aibi. CEM II da CEM III (da slag) kuma aiki, amma rage RDP sashi ta 0.5% don kauce wa wuce gona da iri.
- Tari: Yi amfani da yashi silica tare da matsakaicin girman barbashi 0.6 mm. Don sutura masu kauri, har zuwa 1.0 mm abin karɓa ne. Kada ku yi amfani da ƙurar farar ƙasa; yana sha ruwa kuma yana kawo cikas ga samuwar fim.
- Filastik: Idan kuna amfani da superplasticizer na tushen polycarboxylate, a zuba a cikin ruwan kafin a hade. Kada ku wuce 0.2% ta siminti nauyi. Yawancin plasticizer yana jinkirta saiti tare da RDP.
Nasihar gwani: Don juriya-narke, ƙara 0.1% da nauyin polypropylene microfiber (6 mm tsawo). Wannan ya dogara ne akan bayanai daga 2021 Rahoton RILEM TC-EMR yana nuna a 40% inganta ƙarfin daskarewa-narke tare da wannan haɗin.
7. Ajiye Foda Daidai
RDP foda shine hygroscopic. Yana sha danshi daga iska. Idan ya sha da yawa, ba zai sake watse ba. Fim ɗin zai yi rauni.
Dokokin ajiya:
- Ajiye jakunkuna marasa buɗewa a 5-35 ° C. Dangantakar zafi a ƙasa 60%.
- Kar a bude jaka har sai kun shirya amfani da ita.
- Da zarar an bude, yi amfani da duk jakar da ke ciki 24 hours. Ko rufe shi a cikin ganga mai filastik tare da jakar bushewa.
- Rayuwar rayuwa: 12 watanni daga ranar da aka yi a cikin marufi da aka rufe. Bayan haka, gwada don ƙirƙirar fim kafin amfani.
Idan ka adana foda na RDP don hana ruwa bisa siminti a cikin ɗakin ajiyar damp, za ku biya farashin. Na ga gabaɗayan pallet ɗin ya juya ya zama ƙulli mai ƙarfi. Darasi mai tsada.
8. Gwada Kafin Ka Amince
Kada ku ɗauki maganata. Gwada tsarin ku.
Tilastawa ingancin cak (Saukewa: ASTM C1305):
- Gwada mannewa mai ƙarfi akan simintin siminti: m 1.0 MPa bayan 28 kwanaki.
- Gwaji elongation: m 30% don hana ruwa gaba ɗaya.
- Gwada iyawar ruwa: kasa da 5 ml na ruwa shigar bayan 24 hours karkashin 0.5 MPa matsa lamba.
Aika samfurori zuwa dakin gwaje-gwaje. Ko kuma yi gwajin nutsewar ruwa na awoyi 100 mai sauƙi a cikin shagon ku. Idan samfurin ya sami fiye da haka 5% nauyi, Adadin RDP ɗin ku ya yi ƙasa da ƙasa ko kuma maganin ku ba shi da kyau.
Klaus ya kasance yana cewa, “Lab din yana da tsada. Sake aikin ya fi tsada.” Yayi gaskiya.
Taken Karshe: Girke-girke na mataki-mataki
Bari in taƙaita komai a cikin tebur mai tsafta. Ajiye wannan akan wayarka. Ajiye shi a bangon tashar hada-hadar ku.
| Mataki | Aiki | Mahimman Bayani |
|---|---|---|
| 1. Tsara | 3-5% RDP ta nauyin siminti | Yi nauyi daidai. Babu kimantawa. |
| 2. Bushewar cakuda | Siminti + yashi + RDP | Mix 2 min har sai uniform |
| 3. Ƙara ruwa | 80% na farko, 20% daga baya | Zafin ruwa 20 ° C ± 5 ° C |
| 4. Mix | 3 min ƙananan gudu, 2 min matsakaicin gudu | Huta 5 min. Sa'an nan kuma motsa. |
| 5. Aiwatar da gashi 1 | 1.0- 1.2 mm rigar kauri | Goge, abin nadi, ko fesa |
| 6. Jira 4-6 hours | Bari ya bushe a 23 ° C, 50% RH | Inuwa, ba ruwan sama |
| 7. Aiwatar da gashi 2 | 1.0- 1.2 mm rigar kauri | Haye a 90° don yin sutura 1 |
| 8. Magani | Ci gaba da danshi don 3 kwanaki | Hazo kowane 4 ranan awanni 1 |
| 9. Gwaji | Ponding gwajin ranar 8 | 25 mm ruwa, 24 hours |
Yanzu kuna da tsarin da na yi amfani da shi 20 shekaru. Gwada shi a kan ƙaramin faci da farko. Daidaita sashi zuwa yanayin ku. Ajiye bayanan.
Tsayar da ruwa ba sihiri ba ne. Ilimin kimiyya ne. Sami foda na RDP don hana ruwa bisa siminti daidai, kuma aikinku zai hana ruwa shekaru da yawa. Irin wannan suna ne ke gina sana'a.
Jeka hada wani abu da zai dawwama.
Mai bayarwa
ConcreteAndMore amintaccen mai siyar da simintin siminti ne na manyan ayyuka da sinadarai na gini.. Tare da shekarun gwanintar masana'antu, mun ƙware wajen samar da sabbin hanyoyin magancewa gami da polycarboxylate superplasticizers, kankare zaruruwa, defoamers, wakilai masu kumfa, da ci-gaba na Airgel thermal insulation kayayyakin. Idan kana sha'awar kankare admixture, don Allah a ji daɗin tuntuɓar mu!