Tam sim no, cov ntxhia admixture tau dhau los ua ib qho tseem ceeb ntawm cov pob zeb niaj hnub no, feem ntau tau pom zoo tias feem ntau siv cov khoom siv ntxhia (slag, ya tshauv, silica fume, thiab lwm yam) siv hauv cov pob zeb ua kom muaj kev ua tau zoo ntawm kev txhim kho tseem ceeb. Travertine Pob zeb Kev koom ua ke ntawm ya tshauv, ntxhia hmoov thiab lwm yam ntxhia admixtures tuaj yeem txhim kho kev ua haujlwm ntawm pob zeb. Txoj kev loj hlob ntawm cov pob zeb ua haujlwm siab, ya tshauv thiab slag thiab lwm yam khoom siv feem ntau siv los ntawm kev siv loj, ua rau kev lag luam ya tshauv, ntxhia hmoov thiab lwm yam ntxhia admixture thauj cov nqi nce, Travertine Pob zeb cov khoom muaj zog nce ntxiv. Ua rau tam sim no tsis txaus ntawm cov ntxhia admixtures ntawm qhov tshwm sim, kev siv cov limestone hmoov los ua cov pob zeb sib xyaw ua ke, muaj cov ntsiab lus hauv qab no: kev daws teeb meem zoo rau qhov tsis txaus ntawm cov peev txheej feem ntau siv hauv Suav teb, qhov tsis sib xws ntawm cov khoom siv thiab kev thov kom yooj yim. Chongqing lub zos limestone nplua nuj nyob rau hauv cov peev txheej, Travertine Pob zeb zoo thiab pheej yig, uas yuav pab daws qhov tsis txaus ntawm cov khoom sib xyaw. Tab sis kuj tuaj yeem lav tag nrho txoj kev loj hlob ntawm cheeb tsam ib puag ncig, ua kom tag nrho cov peev txheej hauv zos los txhawb Tuam Tshoj' lub tsev cov ntaub ntawv kev lag luam rau pem hauv ntej.
Nrog rau qhov nce ntawm limestone hmoov cov ntsiab lus, pob zeb slump thiab 1h slump tshwm sim hauv Table 2. Nws tuaj yeem pom los ntawm Table 2 tias raws li cov limestone hmoov cov ntsiab lus tau nce los ntawm 0 kg / m3 mus rau 90 kg / m3, thawj slump ntawm pob zeb tau khaws cia. nruab nrab ntawm 210 mm thiab 250 mm, Travertine Pob zeb thiab cov slump nce los ntawm 170 mm mus rau 240 mm. Nrog rau qhov nce ntawm limestone hmoov cov ntsiab lus, qhov poob poob qis los ntawm 40mm hauv pawg 1 txog 10mm hauv pawg 5, thiab qhov nce ntawm limestone hmoov cov ntsiab lus txo qhov poob ntawm cov pob zeb. Ntawm lawv, limestone hmoov cov ntsiab lus yog ntau dua 50% ntawm cov ntxhia sib xyaw, 1h poob qis txo qis.
Nrog rau qhov nce ntawm limestone hmoov cov ntsiab lus, Travertine Pob zeb qhov slump ntawm pob zeb slag ua loj thiab cov slump poob qis heev, uas yog vim li cas rau cov nyhuv morphological thiab filling nyhuv ntawm limestone hmoov. Qhov saum npoo ntawm qhov ntom ntom thiab du limestone hmoov cov khoom tawg nyob rau hauv cov cement hais, ua lub luag haujlwm hauv dispersant, tuaj yeem txhawb cov dej thaum ntxov ntawm cov cement hais ntawm cov tshuaj, yog li txhim kho kev ua haujlwm ntawm pob zeb. Lub limestone hmoov yog finer thiab muaj ib tug tsawg deg cheeb tsam, Travertine Pob zeb yog li ua rau cov flowability ntawm cov sib tov. Vim tias cov hmoov limestone me dua qhov zoo ntawm cov cement hais, nws tuaj yeem sau qhov sib txawv ntawm cov cement thiab ya tshauv thiab ua lub luag haujlwm ntawm cov pob txha pob txha, yog li txhim kho kev ua haujlwm ntawm pob zeb.
Nrog rau qhov nce ntawm cov hmoov tshauv ya ya es tsis txhob ya tshauv, lub zog thaum ntxov tsis hloov pauv ntau nrog cov gels sib txawv raws li cov ntsiab lus ntawm limestone hmoov, thiab lub zog ntawm cov theem tom qab tau nce nrog cov ntsiab lus ntawm pob zeb. hmoov. Travertine Pob zeb poob. Raws li cov limestone hmoov kev ua haujlwm yog qhov qis, qhov kev loj hlob ntawm lub zog lig tsis zoo li cov hmoov tshauv ya, yog li cov pob zeb hmoov cov ntsiab lus nce, lub zog loj hlob qeeb me ntsis.
