SNF-AMOSEBETSI OA PHAHAMENG E PHAHAMENG
(I)PROPERTIES,CHARACTERISTICS(FDN-A)
1. Ponahalo: Phofo e sootho e khanyang & mokelikeli o sootho o lefifi.Ha e chefo, ha e na monko, e sa cheng ebile e sa senye litšepe.
2. Plasticity e Hlollang: E le boemo ba ho kopanya moo palo ea samente le ho putlama ho tsitsitseng esale pele, ho kopanya metsi ho ka fokotseha ka 18-28% ha e kopantsoe le konkreite e matlafalitsoeng ho 0.5-1.0%.Ho latela lipalo, matla a compression ka letsatsi la 1, letsatsi la 3rd le letsatsi la 28 kamora kopo e le 'ngoe a eketsoa ka 60-90% le 25-60% ka ho latellana ha e eketsoa ka tekanyo e tloaelehileng ea motsoako. , matla a buckling le modulus ea elasticity e tla ntlafatsoa ho isa bohōleng bo itseng.
3. Ntlafatsa miscibility ea konkreite amalgamator ka metsi le collapsibility hammoho.Joaloka boemo ba ho kopanya ho lekanang, ho putlama ho ka eketsoa ka makhetlo a 5-8 ha e eketsoa ka tekanyo ea 0.75% ea motsoako.
4. 15-20% ea samente e ka bolokoa ha moemeli a kopantsoe ka tekanyo ea 0.75% ea motsoako, e leng boemo ba pele ka ho putlama le matla a tšoanang.
(II) LITŠOANTŠISO LE KHETHO EA KAMOHELO(SNF-A)
ntho | sepheo | ntho | sepheo |
Litaba tse tiileng | ≥91% | PH Boleng | 7-9 |
Na2SO4 | 5% | Grout e ntle ea samente phallelo | ≥250 limilimithara |
Chloride | <0.3% | Khatello ea Bokaholimo | (70±1)×10-3N/ m |
(III)MEKOA LE MAEMO A KAMOHELO(SNF-A BAKENG SA TŠEBELETSO)
Mekhahlelo | Litekanyetso | Nnete liphetho | Mekhahlelo | litekanyetso | Nnete liphetho | ||
Phokotso ea metsi,% | ≥14 | ≥14 | Khatello matla,% | 1d | ≥140 | 170 | |
Ho kenella ha metsi,% | ≤90 | 79 | 3d | ≥130 | 160 | ||
Litaba tsa moea,% | ≤3.0 | 1.6 | 7d | ≥125 | 145 | ||
Kabo ea nakoana Bakeng sa litlhophiso(mets) | qalo ho beha nako | -90~ +120 | -90~ +120 | 28d | ≥120 | 135 | |
Theminale ho beha nako | Ho honyela | 28d | ≤135 | 82 | |||
Corrosion to steel bars | ha ho letho | ha ho letho | |||||
Tlhokomeliso: Tekanyetso e tloaelehileng ea motsoako: 0.75% (e le palo ea samente) |
SNF-B MOSEBETSI OA PHAHAMENG EA PHAHAMENG
(I)PROPERTIS, LINTLHA TSE KHOLO(SNF-B)
Phofo e sootho e kganyang & mokelikeli o sootho o lefifi.Ha e chefo, ha e na monko, e sa cheng ebile e sa senye litšepe.
tekanyo, e leng precondition ka collapsibility tšoanang le matla.
(II) LITŠOANTŠISO LE KHETHO EA KAMOHELO(SNF-B)
ntho | sepheo | ntho | sepheo | |
Litaba tse tiileng | ≥91% | PH | Boleng | 7-9 |
Na2SO4 | <10% | Grout e ntle ea samente | ≥240 limilimithara | |
phallelo | ||||
Chloride | <0.4% | Khatello ea Bokaholimo | (70±1)×10-3N/ m | |
(III)PARAMETERS&ACCEPTANCECRITERIA(FDN-B FOR REFERENCE)
Mekhahlelo | Litekanyetso | Nnete liphetho | Mekhahlelo | litekanyetso | Nnete liphetho | ||
Phokotso ea metsi,% | ≥14 | 17-25 | Khatello matla,% | 1d | ≥140 | 165 | |
Ho kenella ha metsi,% | ≤90 | 80 | 3d | ≥130 | 155 | ||
Litaba tsa moea,% | ≤3.0 | 1.6 | 7d | ≥125 | 140 | ||
Kabo ea nakoana Bakeng sa litlhophiso(mets) | qalo ho beha nako | -90~ +120 | -90~ +120 | 28d | ≥120 | 130 | |
Theminale ho beha nako | Ho honyela | 28d | ≤135 | 85 | |||
Corrosion to steel bars | ha ho letho | ha ho letho | |||||
Tlhokomeliso: Tekanyetso e tloaelehileng ea motsoako: 0.75% (e le palo ea samente) |
SNF-C MOSEBETSI OA HO HLOKOA HAHOLO
(I)PROPERTIS, LINTLHA TSE KHOLO(SNF-C)
Phofo e sootho e kganyang & mokelikeli o sootho o lefifi.Ha e chefo, ha e na monko, e sa cheng ebile e sa senye litšepe.
6.Plastiki e Hlollang: Joalo ka boemo ba ho kopanya moo palo ea samente le ho putlama ho tsitsitseng esale pele, ho kopanya metsi ho ka fokotsoa ka 16-22% ha e kopantsoe le konkreite e matlafalitsoeng ho 0.5-1.0%.Ho ea ka lipalo, matla a compression ho 1stletsatsi, la 3 le la 28thletsatsi ka mor'a hore kopo e le 'ngoe e eketsehe ka 60-95% le 25-40% ka ho latellana ha e eketsoa ka tekanyo e tloaelehileng ea motsoako.Ka lebaka leo, matla a ho hatella, matla a ho tsitsa, matla a buckling le madulus a elasticity a tla ntlafatsoa ho isa bohōleng bo itseng.
7. Ntlafatsa miscibility ea konkreite amalgamator ka metsi le collapsible hammoho.Joaloka boemo ba ho kopanya ho lekanang, ho putlama ho ka eketsoa ka makhetlo a 4-6 ha e eketsoa ka tekanyo ea 0.75% ea motsoako.
8.15-18% ea samente e ka bolokoa ha moemeli a kopantsoe ka tekanyo ea 0.75% ea motsoako, e leng boemo ba pele ka ho putlama le matla a tšoanang.
(II) LITŠOANTŠISO LE KHETHO EA KAMOHELO(SNF-C)
ntho | sepheo | ntho | sepheo | |
Litaba tse tiileng | ≥91% | PH | Boleng | 7-9 |
Na2SO4 | <20% | Grout e ntle ea samente | ≥230 limilimithara | |
phallelo | ||||
Chloride | <0.5% | Khatello ea Bokaholimo | (70±1)×10-3N/ m | |
(III)MEKOA LE MAEMO A KAMOHELO(SNF-C BAKENG SA TŠEBELETSO)
Mekhahlelo | Litekanyetso | Nnete liphetho | Mekhahlelo | litekanyetso | Nnete liphetho | ||
Phokotso ea metsi,% | ≥14 | 16-22 | Khatello matla,% | 1d | ≥140 | 160 | |
Ho kenella ha metsi,% | ≤90 | 85 | 3d | ≥130 | 150 | ||
Litaba tsa moea,% | ≤3.0 | 2.0 | 7d | ≥125 | 140 | ||
Kabo ea nakoana Bakeng sa litlhophiso(mets) | qalo ho beha nako | -90~ +120 | -90~ +120 | 28d | ≥120 | 125 | |
Theminale ho beha nako | Ho honyela | 28d | ≤135 | 88 | |||
Corrosion to steel bars | ha ho letho | ha ho letho | |||||
Tlhokomeliso: Tekanyetso e tloaelehileng ea motsoako: 0.75% (e le palo ea samente) |
(IV) TŠEBELETSO:
1.Ho kopanya litekanyetso ho 0.5-1%, 0.75% ho kopanya litekanyetso ho eletsoa.2.Lokisetsa litharollo e le
hlokahala.
3.Tšebeliso e tobileng ea motsoako oa phofo e lumelloa.Hantle-ntle ho eketsoa ha moemeli ho lateloa ke metsi a mongobo (karolelano ea samente ea metsi:60%).
4.Moemeli a ka kopanngoa le mahlahana a mang a sebelisoang ka ho fetisisa haeba tsoelo-pele ea lifofane kapa liteko tsa laboratori li atleha.
(V)PAKA, HO BOLOKA LE HO TSAMAISA
1.sephutheloana:
Phofo: ho paka ka mokotla oa masela a lohiloeng ka polasetiki ea kahare. Boima ba boima: 25kg± 0.2kg kapa 650kg±0.2kg
2.Litemoso:
E thibetsoe hore e se be tom ka lintho tse hlabang ha liphutheloana li ntse li fetisoa kapa li tsamaisoa.Ha e silafatsoa ke mongobo o phahameng kapa mongobo ha ho ka lutla, e ka lokisoa ka litsela tse behiloeng bakeng sa tšebeliso e tsoelang pele ntle le ho fana ka phello leha e le efe.
3. E lokela ho bolokoa sebakeng sa polokelo se inehetseng se nang le moea o pholileng le se omileng.