Samente ea Molora oa Portland

Samente ea Portland
Molora o fofang Samente ea portland e bolela motsoako oa clinker ea samente ea Portland le molora o fofang, o kopantsoeng le gypsum e loketseng ebe e siloa, e bitsoang PF. Thepa efe kapa efe ea hydraulic cementitious e entsoeng ka clinker ea samente ea Portland, molora o fofang le mobu o loketseng oa gypsum e bitsoa molora o fofang. Samente ea Portland, e bitsoang PF. Palo ea molora o fofang e ekelitsoeng samenteng ke 20% ~ 40% ka boima, 'me litlhoko tsa eona tsa matla le matla lilemong ka seng li tšoana le tsa slag ea samente ea Portland.

Lisebelisoa tse so ntlafatsoe
E entsoe ka clinker ea samente ea Portland le molora o fofang, e kopantswe le gypsum e lekaneng ebe e silwa. Khoutu PF
Thepa efe kapa efe e entsoeng ka samente ea haeteroliki e entsoeng ka clinker ea samente ea Portland, molora o fofang le mobu o loketseng oa gypsum e bitsoa molora o fofang samente ea Portland, e bitsoang PF. Palo ea molora o fofang e ekelitsoeng samenteng ke 20% ho isa ho 40% ka boima. E lumelloa ho nka karolo ho slag ea ontong ea granulated blast e sa feteng 1/3 ea kakaretso ea thepa e tsoakiloeng. Nakong ena, kakaretso ea thepa e tsoakiloeng e ka fihla ho 50%, empa palo ea molora o fofang ha ea lokela ho ba ka tlase ho 20% kapa ho feta 40%.
Likaroloana
Sebopeho sa samente ea molora o fofang se teteaneng haholo, sebaka se ikhethileng sa ka hare se senyenyane, 'me bokhoni ba ho monya metsi bo bonyenyane haholo, 'me tlhoko ea metsi ea metsi a samente e nyane, kahoo ho fokotseha ho omileng ha samente ea molora o fofang ho honyenyane, 'me khanyetso ea mapetso le eona e tlase. Ho phaella moo, joalo ka samente e akaretsang e kopantsoeng le metsoako e sebetsang, e na le mocheso o tlase oa metsi le khanyetso e matla ea mafome.
Tshebetso
Thepa e ikhethang ea samente ea molora o fofang ea Portland ke e latelang:
(1) Matla a pele a tlase, 'me sekhahla sa keketseho ea matla a morao se seholo: matla a pele a samente ea molora o fofang a tlase, 'me matla a pele a fokotseha haholo ka keketseho ea bongata ba molora o fofang. Hobane 'mele oa vitreous moloreng o fofang o tsitsitse haholo, likaroloana tsa molora o fofang lia senyeha 'me lia senngoa butle-butle ke Ca(OH)2 nakong ea ts'ebetso ea metsi ea samente ea molora o fofang, kahoo nts'etsopele ea matla a samente ea molora o fofang e bonahala haholo mohatong oa morao. , sekhahla sa keketseho ea matla a morao se seholo, 'me se ka feta matla a morao a samente ea Portland e tsamaellanang.
(2) Bokgoni bo botle ba ho sebetsa le ho fokotseha hanyane ha ho oma: Hobane boholo ba dikarolwana tsa molora o fofang di kwetswe ebile di tiile, mme sebaka sa kahare le metsi a monyang wa molek'hule e le nngwe di nyane, samente ya molora o fofang e na le bokgoni bo botle ba ho sebetsa le ho fokotseha hanyane ha ho oma. , e na le dibopeho tsa matla a ho thapolla le ho hanyetsa ho hotle ha mapetso. Ena ke monyetla o hlakileng wa samente ya molora o fofang.
(3) Ho hanyetsa mafome hantle: samente ea molora o fofang e na le ho hanyetsa mafome ho hoholo ho metsi a hloekileng le sulfate. Ka lebaka la motsoako oa SiO2 e sebetsang moloreng o fofang le Ca(OH)2, calcium silicate hydrate e hlahisoa ha e leka-lekanngoa. Khakanyo e hlokahalang (ke hore, alkalinity ea karolo ea metsi) e tlase haholo ho feta e hlokahalang bakeng sa ho leka-lekana ha calcium silicate hydrate samenteng e tloaelehileng ea Portland, kahoo sekhahla sa ho lutla metsing a hloekileng se fokotsehile haholo, ka hona se ntlafatsa ho hanyetsa samente. Bokhoni ba ho ruruha ha metsi a hloekileng le ho hanyetsa tšenyo ea sulfate.
(4) Mocheso o fokolang oa metsi: Lebelo la metsi la samente ea molora o fofang le lieha 'me mocheso oa metsi o tlase, haholo-holo ha bongata ba molora o fofang o eketsoang bo le boholo, phokotso ea mocheso oa metsi e totobetse haholo.

Samente ea Portland
Di-clinker tsohle tsa samente tsa Portland tse entsweng haholo-holo ka silicate ea calcium, limestone kapa granulated blast oven slag e nang le ka tlase ho 5%, le thepa ea hydraulic cementitious e entsoeng ka gypsum e sitsitsoeng hantle li bitsoa samente ea Portland. Li tsejoa machabeng e le Samente ea Portland.
Tlhophiso
Samente ea Portland e arotsoe ka mefuta e 'meli, mofuta oa I samente ea Portland e se nang thepa e tsoakiloeng o bitsoa samente ea Portland, khoutu ea P·I; thepa e tsoakiloeng e nang le lejoe la mokoetla kapa granulated blast oven slag e sa feteng 5% ea boima ba samente e bitsoa samente ea mofuta oa II ea Portland, khoutu ea P·Ⅱ.
Sebopeho sa diminerale
Sebopeho se seholo sa diminerale sa samente ya Portland ke: tricalcium silicate, dicalcium silicate, tricalcium aluminate, le tetracalcium ferric aluminate. Tricalcium silicate e fumana matla a samente ya Portland nakong ya dibeke tse nne; dicalcium silicate e fana ka matla a yona feela kamora dibeke tse nne, mme e fihlella matla a tricalcium silicate ka dibeke tse nne ka selemo; matla a tricalcium aluminate E fana ka matla kapele, empa matla a tlase, mme e bapala karolo e itseng matleng a samente ya Portland nakong ya matsatsi a 1 ho isa ho a 3 kapa ho feta hanyane; Monehelo wa matla a samente ya letswai la asiti o monyane.