ʻO ka māmā aggregate concrete (LGC), kekahi o nā mea hale hou, he māmā māmā i hanaʻia me ka māmā māmā me ka nui o ka nui o ka 1900kg / m3, iʻikeʻia hoʻi he porous aggregate lightweight concrete.

Loaʻa nā hiʻohiʻona o ka ʻuala aggregate māmā

Loaʻa nā hiʻohiʻona o ka māmā aggregate concrete i nā ʻano o ke kaumaha māmā, ka insulation thermal maikaʻi a me ke kūpaʻa ahi.Ke hoʻohālikelike ʻia me ka pāpaʻi maʻamau o ka papa like, ʻo ka ikaika compressive o ka ʻāpana māmā māmā hiki ke piʻi i ka 70 MPa, hiki ke hoʻemi i ke kaumaha make ma mua o 20-30%.ʻO ka hoʻoulu ʻana o ka thermal insulation lightweight aggregate concrete he ʻano mea pā me ka maikaʻi o ka hoʻoheheʻe ʻana i ka wela, a ʻo kāna conductivity thermal he 0.233-0.523 w / (m * k), ʻo ia wale nō 12-33% o kēlā me ka pā maʻamau.Loaʻa i ka hana hoʻololi maikaʻi a me ka modulus elastic haʻahaʻa.Ma keʻano laulā, nui nō hoʻi ka hōʻemi a me ka kolo.ʻO ka modulus elastic o ka māmā aggregate concrete i kūlike me kona nui a me kona ikaika.ʻO ka liʻiliʻi o ka puʻupuʻu nui a me ka haʻahaʻa o ka ikaika, ʻoi aku ka haʻahaʻa o ka modulus elastic.Ke hoʻohālikelike ʻia me ka pāpaʻi maʻamau o ka papa hoʻokahi, ʻo ka modulus elastic o ka māmā aggregate concrete ma kahi o 25-65% haʻahaʻa.

Hoʻohana nui ʻia ka māmā aggregate concrete i nā hale ʻoihana a me nā hale kīwila a me nā papahana ʻē aʻe, hiki ke hōʻemi i ke kaumaha o ka hale, hoʻomaikaʻi i ka hana seismic o ka hale, mālama i ka nui o nā mea, hoʻomaikaʻi i ka pono o ka lawe ʻana a me ka hāpai ʻana, hoʻemi i ke kumu. hoʻouka a hoʻomaikaʻi i ka hana o ka hale (ka insulation thermal a me ke pale ahi, etc.).No laila, i nā makahiki 1960 a me 1970, ua ulu wikiwiki ka hana a me ka noi ʻana o ka ʻenehana aggregate māmā, ʻoi aku ka nui ma ke kuhikuhi o ke kaumaha māmā a me ka ikaika kiʻekiʻe.Ua hoʻohana nui ʻia i nā hale kiʻekiʻe, lōʻihi ka lōʻihi a me nā hale paʻa, ʻoi aku ka nui o ka hana ʻana i nā poloka puka liʻiliʻi no nā paia.Ua hoʻomaka ʻo Kina i ka hoʻomohala ʻana i ka ʻāpana māmā a me ka māmā aggregate mai ka makahiki 1950.Hoʻohana nui ʻia ia no nā pā paneli waho nui a me nā poloka hollow liʻiliʻi i nā hale ʻoihana a me nā hale kīwila, a hoʻohana ʻia kahi liʻiliʻi no nā hale lawe ukana a me nā hale wela o nā hale kiʻekiʻe a me nā alahaka.

ʻO ke koʻi koʻikoʻi māmā

ʻO nā ʻano kumu nui o nā ʻāpana māmā māmā

Hoʻokaʻawale ʻia ka ʻāpana māmā māmā i nā ʻāpana māmā māmā e like me nā ʻano o ka māmā māmā.E like me ka pumice concrete, cinder concrete a me ka porous tuff concrete.ʻO ka lāʻau paʻa māmā māmā.E like me ka pālolo ceramsite, shale ceramsite concrete, expanded perlite concrete a me organic lightweight aggregate concrete.ʻO nā ʻōpala ʻoihana māmā aggregate concrete.E like me ka cinder concrete, fly ash ceramsite concrete a me ka mea hoʻonui slag bead concrete.

E like me ke ʻano o ka huila maikaʻi, hiki ke hoʻokaʻawale ʻia i: nā ʻāpana māmā a pau.ʻO ke koʻi koʻikoʻi māmā me ka hoʻohana ʻana i ke one māmā e like me ka hōʻiliʻili maikaʻi.Pākuʻi māmā one.ʻO ke koʻi koʻikoʻi māmā me ka ʻāpana a i ʻole ke one maʻamau e like me ka hui maikaʻi.

E like me kona hoʻohana ʻana, hiki ke hoʻokaʻawale ʻia i: thermal insulation lightweight aggregate concrete.ʻOi aku ka liʻiliʻi o kona puʻupuʻu nui ma mua o 800 kg / m3, a ʻoi aku kona ikaika compressive ma mua o 5.0 MPa.Hoʻohana nui ʻia no ka envelope insulation thermal a me ka hoʻolālā wela.ʻO ka hoʻoheheʻe ʻana i ka wela maʻemaʻe.ʻO 800-1400kg / m3 kona nui nui, a ʻo kona ikaika compressive he 5.0-20.0 MPa.Hoʻohana nui ʻia ia no nā hale paʻa i hoʻoikaika ʻia a hoʻopaʻa ʻole ʻia.ʻO ke koʻo koʻikoʻi māmā.ʻO 1400-1800 kg / m3 kona nui nui, a ʻo kona ikaika compressive he 15.0-50.0 MPa.Hoʻohana nui ʻia ia no nā lālā lawe ukana, nā lālā prestressed a i ʻole nā ​​hale.