He aha nā hiʻohiʻona o ka papa pōhaku asphalt kala?
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He aha nā hiʻohiʻona o ka papa pōhaku asphalt kala?
Manawa Hoʻokuʻu:2023-10-12
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ʻO ka asphalt kala, ʻike ʻia hoʻi he sima kala, he sima ia e hoʻohālike i nā ʻāpana o ka asphalt petroleum a hoʻololi ʻia e ka hui ʻana i ka resin petroleum me SBS modifier a me nā mea kemika ʻē aʻe. ʻAʻole waihoʻoluʻu a kala ʻole paha kēia asphalt, akā ʻeleʻele ʻeleʻele, i nā makahiki i hala iho nei, ua kapa ʻia ʻo ia ʻo asphalt kala ma muli o nā hana maʻamau. I kēia manawa, hiki ke hoʻokaʻawale ʻia nā pavements asphalt ʻulaʻula o Kina i ʻelua ʻano nui: hana ʻia ke ʻano mua me ka hoʻohana ʻana i ka mea hoʻopaʻa asphalt transparent a translucent ma ke ʻano he mea hoʻopili, a laila hoʻohui i nā puaʻa inorganic i ka hui asphalt; ʻO ka lua o ke ʻano ʻo ia Ua hana ʻia me ka sima alohilohi a translucent. Hoʻokumu ʻia ia ma ka hui ʻana i nā mea mineral kala maoli e like me nā aggregates. No laila he aha nā hiʻohiʻona o ka papa pōhaku asphalt kala?

Hoʻonani i ke kūlanakauhale, hoʻomaikaʻi i ke kaiapuni alanui, a hōʻike i ke ʻano o ke kūlanakauhale. Hoʻohana pono ʻia ia i nā alanui hele wāwae, nā wahi ʻāina, nā ʻāpana, nā paka, nā alanui a me nā wahi ʻē aʻe. Hoʻopiha ia i ka mauʻu ʻōmaʻomaʻo a puni, nā kumulāʻau, nā pua, a me nā mea ʻē aʻe, e hoʻonani ai i ke kaiapuni a hāʻawi i ka poʻe i ke ʻano o ke ʻano. Nanea i ka nani. Loaʻa iā ia ka hana o ka hoʻonohonoho ʻana a me ka hoʻokele ʻana i nā kaʻa, a hoʻohana pono ʻia e hoʻokaʻawale i nā ʻāpana alanui a me nā alahele me nā hana like ʻole e hoʻonui ai i ka hopena ʻike o ka ʻili o ke alanui, ka hiki ke kaʻa o ke alanui a me ka palekana o ke kaʻa. Loaʻa iā ia ka hana alanui maikaʻi. Ma lalo o ka mana o nā ʻano wela like ʻole a me nā kaiapuni o waho, ʻoi aku ka maikaʻi o kona kūpaʻa kiʻekiʻe, ke kūpaʻa ʻana o ka wai a me ka lōʻihi, ʻaʻole ʻike ʻia ka degeneration, asphalt film peeling, etc. . ʻO ke kala he'ālohilohi a lōʻihi ka lōʻihi,ʻaʻole e mae, hiki ke pale i nā mahana kiʻekiʻe o 77 ° C a me nā haʻahaʻa haʻahaʻa o -23 ° C, a maʻalahi ka mālamaʻana. Me ka hana hoʻoheheʻe leo ikaika, ʻaʻole e hoʻopuka nā kaʻa kaʻa i ka walaʻau ikaika ma muli o ke kaomi ʻana o ka ea i ka wā e ʻōwili ai i ka wikiwiki kiʻekiʻe ma ke alanui, a hiki nō hoʻi ke komo i nā leo ʻē aʻe mai ka honua waho. Loaʻa iā ia ka elasticity maikaʻi a me ka maʻalahi, maikaʻi ka wāwae wāwae, kūpono no ka hele ʻana e ka poʻe ʻelemakule, a he hana anti-slip maikaʻi i ka hoʻoilo.