Lub teeb yuag aggregate pob zeb (LGC), yog ib qho ntawm cov khoom siv hauv tsev tshiab, yog cov pob zeb sib sib zog ua los ntawm cov khoom sib xyaw ua ke nrog qhov ntom ntom ntawm tsis ntau tshaj 1900kg / m3, tseem hu ua porous aggregate lightweight concrete.

Lub teeb yuag aggregate pob zeb muaj cov yam ntxwv

Lub teeb yuag aggregate pob zeb muaj cov yam ntxwv ntawm lub teeb yuag, zoo thermal rwb thaiv tsev thiab hluav taws kub.Piv nrog rau cov pob zeb zoo tib yam ntawm tib qib, lub zog compressive ntawm cov qauv sib xyaw ua ke tuaj yeem ncav cuag 70 MPa, uas tuaj yeem txo qhov hnyav ntawm ntau dua 20-30%.Cov txheej txheem thermal rwb thaiv tsev lub teeb yuag aggregate pob zeb yog ib yam ntawm cov khoom siv phab ntsa nrog cov thermal rwb thaiv tsev zoo, thiab nws cov thermal conductivity yog 0.233-0.523 w / (m * k), uas tsuas yog 12-33% ntawm cov pob zeb zoo tib yam.Lub teeb yuag aggregate pob zeb muaj qhov ua tau zoo deformation thiab qis elastic modulus.Feem ntau, qhov shrinkage thiab creep kuj loj.Lub elastic modulus ntawm lub teeb yuag aggregate qhob yog ncaj qha proportional rau nws tej ntom thiab lub zog.Qhov me me ntawm qhov ntom ntom thiab qhov qis zog, qhov qis dua elastic modulus.Piv nrog rau cov pob zeb zoo tib yam ntawm tib qib, elastic modulus ntawm lub teeb yuag aggregate pob zeb yog li 25-65% qis dua.

Lub teeb yuag aggregate pob zeb yog dav siv nyob rau hauv industrial thiab civil vaj tse thiab lwm yam dej num, uas yuav txo tau qhov hnyav ntawm cov qauv, txhim kho cov seismic kev ua tau zoo ntawm cov qauv, txuag tus nqi ntawm cov ntaub ntawv, txhim kho cov efficiency ntawm kev thauj mus los thiab hoisting, txo lub hauv paus. load thiab txhim kho lub tsev muaj nuj nqi (thermal rwb thaiv tsev thiab hluav taws kub, thiab lwm yam).Yog li ntawd, nyob rau xyoo 1960 thiab 1970s, kev tsim khoom thiab kev siv thev naus laus zis ntawm lub teeb yuag aggregate pob zeb tsim tau sai heev, feem ntau yog nyob rau hauv cov kev taw qhia ntawm lub teeb yuag thiab siab zog.Nws tau dav siv nyob rau hauv high-rise, ntev-span lug thiab enclosure lug, tshwj xeeb tshaj yog nyob rau hauv zus tau tej cov me hollow blocks rau phab ntsa.Tuam Tshoj pib tsim lub teeb yuag aggregate thiab lub teeb yuag aggregate pob zeb txij li xyoo 1950.Nws yog tsuas yog siv rau loj-scale sab nrauv phab ntsa panels thiab me me hollow blocks nyob rau hauv industrial thiab civil vaj tse, thiab ib tug me me npaum li cas yog siv rau load-bearing lug thiab thermal lug ntawm high-rise thiab choj vaj tse.

Lub teeb aggregate pob zeb

Lub ntsiab hom ntawm lub teeb yuag aggregate pob zeb

Lub teeb yuag aggregate yog muab faib ua tej yam ntuj tso sib xyaw ua ke raws li hom sib xyaw ua ke.Xws li pumice pob zeb, cinder pob zeb thiab porous tuff pob zeb.Artificial lightweight aggregate pob zeb.Xws li av nplaum ceramsite pob zeb, shale ceramsite pob zeb, nthuav perlite pob zeb thiab cov organic sib xyaw ua ke sib xyaw ua ke.Industrial pov tseg lub teeb yuag aggregate pob zeb.Xws li cinder pob zeb, ya tshauv ceramsite pob zeb thiab nthuav slag hlaws pob zeb.

Raws li hom nplua aggregate, nws tuaj yeem muab faib ua: tag nrho cov pob zeb sib sib zog nqus.Lub teeb yuag aggregate pob zeb siv lub teeb xuab zeb ua cov khoom zoo.Xuab zeb teeb pob zeb.Lub teeb yuag aggregate pob zeb nrog ib feem lossis tag nrho cov xuab zeb zoo tib yam.

Raws li nws siv, nws tuaj yeem muab faib ua: thermal rwb thaiv tsev lub teeb yuag aggregate pob zeb.Nws qhov ntom ntom yog tsawg dua 800 kg / m3, thiab nws lub zog compressive tsawg dua 5.0 MPa.Nws yog tsuas yog siv rau thermal rwb thaiv tsev hnab ntawv thiab thermal qauv.Cov qauv thermal rwb thaiv tsev lub teeb yuag aggregate pob zeb.Nws qhov ceev ceev yog 800-1400kg / m3, thiab nws lub zog compressive yog 5.0-20.0 MPa.Nws yog tsuas yog siv rau kev txhawb zog thiab unreinforced enclosure lug.Lub teeb yuag aggregate pob zeb.Nws qhov ntom ntom yog 1400-1800 kg / m3, thiab nws lub zog compressive yog 15.0-50.0 MPa.Nws yog tsuas yog siv rau cov tswv cuab load-bearing, cov tswv cuab prestressed lossis cov qauv.