Malaastaantu waxay noqon doontaa marinka guud ee malaasta gidaarka gudaha mustaqbalka
Gypsum-ka malaasta ah ee loo isticmaalo darbiyada gudaha ayaa leh sifooyinka miisaanka fudud, nuugista qoyaanka, dahaarka dhawaaqa, iyo raaxada nolosha ee xooggan.Malaasta gypsum waxay noqon doontaa marinka guud ee gidaarka gudaha mustaqbalka mustaqbalka.
Gypsum-ka hemihydrate ee loo isticmaalo malaasta gidaarka gudaha maanta guud ahaan waa gypsum β-hemihydrate, iyo hemihydrate gypsum desulfurized, ama gypsum dabiiciga ah, ama fosfogypsum buuxiya shuruudaha ilaalinta deegaanka ayaa caadi ahaan la isticmaalaa.Awooda jirka gypsum waa kala duwan tahay 2.5 MPa ilaa 10 MPa.Tayada gypsum hemihydrate ee ay soo saaraan soosaarayaasha gypsum aad bay u kala duwan yihiin sababtoo ah farqiga asalka alaabta ceeriin iyo habka.
Naqshadaynta Formula ee Malaasta Gypsum ee Injineerinka
gypsum-ka malaasta ah ee loo isticmaalo injineernimada badanaa waa mid culus oo bacaad ah gypsum-ka.Sababtoo ah aagga dhismaha ballaaran, dhumucdiisuna waxay ka badan tahay 1 cm.Shaqaaluhu waxay u baahan yihiin heerar degdeg ah, markaa gypsum-ka ayaa looga baahan yahay inuu yeesho thixotropy wanaagsan.xoqid wanaagsan, dareemo gacan fudud, fududahay in lagu soo bandhigo iftiinka iyo wixii la mid ah.
taxliilin:
1. Waxqabad heersare ah oo wanaagsan.Qalabaynta ciidda ayaa ka fiican, isticmaal ciid dhexdhexaad ah oo leh ciid wanaagsan.
2. thixotropy wanaagsan.Waxaa loo baahan yahay in hantida buuxinta alaabta ay ka fiican tahay.Waxay heli kartaa dhumuc weyn, sidoo kale waxay heli kartaa dhuuban.
3. Xoog lumin.Isticmaal dib-u-dejiyaha amino acid, sida Talyaani Plast Retard PE.
Nafaqada la soo jeediyay ee injineernimada malaasta gypsum:
gypsum β-hemihydrate desulfurized: 250 kg (xoogga gypsum waa qiyaastii 3 MPa)
150-200 mesh Calcium culus: 100 kg (kaalshiyamka culus ma fududa inuu aad u fiican yahay)
1.18-0.6mm ciid: 400 kg (14 mesh-30 mesh)
0.6-0.075mm ciid: 250 kg (30 mesh-200 mesh)
HPMC-40,000: 1.5 kg (Waxaa lagu talinayaa in la dhaqo HPMC saddex jeer, alaabta saafiga ah, ubaxa gypsum ka yar, viscosity hoose, dareenka gacanta wanaagsan, iyo mugga yar-entraining hawada).
Wakiilka Rheological YQ-191/192: 0.5 kg (anti-sag, kordhin buuxinta, dareenka gacanta fudud, dhammayn wanaagsan).
Plast Retard PE: 0.1 kg (qiyaasku maaha mid go'an, la hagaajiyay iyadoo loo eegayo wakhtiga xinjirowga, borotiinka, wax xoog ah oo lumay).
Tusaalaha alaabta ceeriin:
1.18-0.6 mm ciid
0.6-0.075mm ciid
β hemihydrate gypsum desulfurized (qiyaastii 200 mesh)
Tilmaamaha qaacidadaani waa: dhismo wanaagsan, xoog degdeg ah.Si sahlan loo qiyaasi karo, qiimo jaban, xasillooni wanaagsan, ma fududa in la dillaaciyo.Ku haboon injineernimada.
Isagoo ka hadlaya khibrad
1. Gypsum-ka laga soo celiyay qayb kasta waa in lagu kormeeraa qaacidada wax soo saarka si loo hubiyo in wakhtiga dejinta uusan isbeddelin ama uu ku jiro xadka la xakameyn karo.Haddii kale, wakhtiga dejintu aad buu u dheer yahay wayna fududahay in la dillaaco.Haddii wakhtigu aad u gaaban yahay, wakhtiga dhismuhu kuma filna.Guud ahaan, wakhtiga dejinta bilowga ah ee nakhshaduhu waa 60 daqiiqo, iyo wakhtiga dejinta ugu dambeeya ee gypsum waxay ku dhowdahay wakhtiga dejinta bilowga ah.
2.Dhibka ku jira ciida waa in aanu noqon mid aad u wayn, waxa ku jira dhoobada waa in lagu xakameeyaa 3%.Waxa ku jira dhoobo aad u badan way fududahay in la dillaaciyo.
3. HPMC, viscosity hooseeya, tayo sare leh ayaa lagula talinayaa.HPMC-ga la dhaqay saddex jeer ayaa milixdu ku yar tahay, iyo hoobiye gypsum ah ayaa leh baraf yar.Adkeydka dushaan iyo xooggani waa OK
4. Markaad isku qasayso budada qalalan, wakhtiga isku-darka waa inaanu noqon mid aad u dheer.Ka dib markii dhammaan maaddooyinka la quudiyo, walaaq ilaa 2 daqiiqo.Budada qalalan, wakhtiga isku darka dheer, ayaa ka sii fiican.Muddo dheer ka dib, dib-u-dhigaha ayaa sidoo kale lumin doona.Waa arin waayo aragnimo ah.
5. Baadhitaanka muunad ee alaabta.Waxaa lagu talinayaa in la tijaabiyo oo la baaro alaabta la dhammeeyey laga bilaabo bilowga, dhexe iyo dhammaadka dheri kasta.Sidan, waxaad ogaan doontaa in wakhtiga dejinta uu ka duwan yahay, dib-u-dejiyahana waa in si habboon loo hagaajiyaa iyadoo loo eegayo baahiyaha.
Waqtiga boostada: Jan-18-2023