Plaster plaster zai zama babban abin da ke cikin bango na ciki a nan gaba
Gilashin gypsum ɗin da aka yi amfani da shi don bangon ciki yana da halaye na nauyi mai sauƙi, shayar da danshi, sautin murya, da kwanciyar hankali mai ƙarfi. Kayan gyare-gyare na gypsum za su zama babban abin da ke cikin bango na ciki a nan gaba.
Gypsum hemihydrate da ake amfani da shi don gyaran bangon ciki a yau shine gabaɗaya β-hemihydrate gypsum, da gypsum hemihydrate desulfurized, ko gypsum na halitta, ko phosphogypsum wanda ya dace da kariyar muhalli ana amfani da shi. Ƙarfin jikin gypsum ya bambanta daga 2.5 MPa zuwa 10 MPa. Ingancin gypsum hemihydrate da masana'antun gypsum ke samarwa ya bambanta sosai saboda bambancin asalin albarkatun ƙasa da tsari.
Zane-zanen Tsarin Gilashin Gypsum don Injiniya
Gilashin gypsum ɗin da ake amfani da shi a aikin injiniya yawanci nauyi ne kuma gypsum ɗin yashi. Saboda babban yanki na ginin, kauri mai daidaitawa ya fi 1 cm. Ma'aikata suna buƙatar matakan sauri, don haka ana buƙatar gypsum don samun thixotropy mai kyau. Kyakkyawar gogewa, jin motsin hannu mai haske, sauƙin nunawa ga haske da sauransu.
nazari:
1. Kyakkyawan aikin daidaitawa. Gradation na yashi ya fi kyau, yi amfani da yashi matsakaici tare da yashi mai kyau.
2. Kyakkyawan thixotropy. Ana buƙatar cewa kayan cikawa na kayan ya fi kyau. Zai iya samun kauri, kuma yana iya samun bakin ciki.
3. Babu asarar ƙarfi. Yi amfani da amino acid retarder, kamar Italiyanci Plast Retard PE.
Dabarar da aka ba da shawarar don aikin gypsum ɗin injiniya:
β-hemihydrate desulfurized gypsum: 250 kg (ƙarfin gypsum kusan 3 MPa)
150-200 raga mai nauyi alli: 100 kg (kalmomi mai nauyi ba shi da sauƙi don zama lafiya sosai)
1.18-0.6mm yashi: 400 kg (14 raga-30 raga)
0.6-0.075mm yashi: 250 kg (raga 30-200 raga)
HPMC-40,000: 1.5 kg (An ba da shawarar wanke HPMC sau uku, samfur mai tsabta, ƙarancin gypsum blooming, ƙarancin danko, jin daɗin hannu mai kyau, da ƙaramin ƙarar iska).
Wakilin Rheological YQ-191/192: 0.5 kg (anti-sag, ƙara yawan cikawa, jin daɗin hannun haske, kyakkyawan ƙare).
Plast Retard PE: 0.1 kg (ba a daidaita sashi ba, daidaitawa bisa ga lokacin coagulation, furotin, babu ƙarfin hasara).
Misalin albarkatun kasa:
1.18-0.6 mm yashi
0.6-0.075mm yashi
β hemihydrate desulfurized gypsum (kimanin raga 200)
Siffofin wannan dabara sune: kyakkyawan gini, ƙarfin sauri. Sauƙi zuwa matakin, ƙarancin farashi, kwanciyar hankali mai kyau, ba sauƙin fashe ba. Dace da aikin injiniya.
Magana daga gwaninta
1. Gypsum da aka dawo daga kowane tsari ya kamata a duba shi tare da tsarin samarwa don tabbatar da cewa lokacin saitawa bai canza ba ko yana cikin kewayon sarrafawa. In ba haka ba, lokacin saitin ya yi tsayi da yawa kuma yana da sauƙin fashe. Idan lokacin ya yi gajere, lokacin ginin bai isa ba. Gabaɗaya, lokacin saitin farko na ƙirar shine mintuna 60, kuma lokacin saitin ƙarshe na gypsum yana kusa da lokacin saitin farko.
2. Abun laka na yashi bai kamata ya zama babba ba, kuma abin da ke cikin laka ya kamata a sarrafa shi a 3%. Yawan laka yana da sauƙin fashe.
3. HPMC, ƙananan danko, babban inganci yana bada shawarar. An wanke HPMC sau uku yana da ƙarancin abun ciki na gishiri, kuma turmi gypsum yana da ƙarancin sanyi. Wannan taurin saman da ƙarfi ba su da kyau
4. Lokacin hada busassun foda, lokacin hadawa bai kamata ya yi tsayi da yawa ba. Bayan an ciyar da duk abubuwan sinadaran, motsawa na minti 2. Don busassun foda, tsawon lokacin haɗuwa, mafi kyau. Bayan lokaci mai tsawo, mai retarder shima zai rasa. Batun kwarewa ne.
5. Samfurin dubawa na samfurori. Ana ba da shawarar yin samfuri da bincika samfuran da aka gama daga farkon, tsakiya da ƙarshen kowace tukunya. Ta wannan hanyar, za ku ga cewa lokacin saitin ya bambanta, kuma ya kamata a daidaita mai retar yadda ya dace daidai da bukatun.
Lokacin aikawa: Janairu-18-2023