Ka lā hoʻouna: 18, Sep, 2023

Noho ʻo Aggregate i ka leo nui o ka koneki, akā no ka manawa lōʻihi, nui nā kuhi hewa e pili ana i ke kūlana o ka hoʻokolokolo ʻana i ka maikaʻi o ka aggregate, a ʻo ka kuhihewa nui loa ʻo ia ka koi o ka ikaika compressive cylinder.ʻO kēia kuhi hewa ʻana mai kāna kuleana i ka ʻili, ʻo ia hoʻi, ke one a me ka ʻiliʻili, e like me ka iwi iwi, he mea nui ia e hoʻoholo ai i ka ikaika o ka ʻili.No laila, ʻo ka nui o nā puke aʻo a me nā kūlana a me nā loina o kēia manawa e koi mau i ka ikaika o nā aggregates he 1.5 a 1.7 mau manawa, a i ʻole 2 mau manawa o ka ikaika o ka ʻōpala i hoʻomākaukau ʻia.Manaʻo ka mea kākau i ka wā e haʻahaʻa loa ana ka papa hana hoʻolālā mua, ua kau ʻia kēia koi i mua, ʻo ia hoʻi, ʻo ka ikaika compressive cylinder o ka aggregate ʻo ≥40MPa, ʻo ia ka mea e wehe wale i kēlā pōhaku me ka ʻino ʻino e like me ka aggregate;Eia naʻe, ua hoʻomaikaʻi maikaʻi ʻia ka ikaika o ka hoʻolālā paʻa, a ke hahai nei nō ia i ka pilina ma waena o nā mea ʻelua ma mua, ʻo ia ka mea i maopopo maoli i ka hemo ʻana mai ka ʻoiaʻiʻo.ʻO kaʻoiaʻiʻo, ua hoʻomākaukau ʻia a hoʻohana ʻia ka ʻenehana māmā ma ka home a me nā ʻāina ʻē aʻe, a ʻo ka ikaika compressive cylinder o ka ʻāpana māmā i hoʻohana ʻia ʻo 15MPa a i ʻole ka haʻahaʻa, ʻoiai hiki i ka ikaika paʻa ke hiki i 80 a 100MPa.

ʻO kekahi manaʻo kuhihewa koʻikoʻi ʻo ka nui o ka nui o nā ʻāpana e pili ana i nā pōhaku pahū a i ʻole nā ​​​​pōhaku hoʻopaʻa paʻa ponoʻī (SCC).No ka mea he pono ka neʻe pili ma waena o nā pōhaku i ke kaʻina o ia hui ʻana e hele ana i loko o ka paipu pahū a kahe ʻana i loko o ke kiʻi, ʻoi aku ka mānoanoa o ka papa lubrication film i koi ʻia no ka neʻe ʻana ma waena o nā ʻāpana pōhaku me ka nui o ka nui o ka ʻāpana, ʻo ia hoʻi, ʻoi aku ka nui. pono paha ka nui o ka pulp.ʻO kēia ke kumu o ka 19mm(British 3/4inch) ka nui o ka nui o nā pōhaku i hoʻohana ʻia i ka hoʻomākaukau ʻana i ia hui ʻana ma waho.ʻOiai ka liʻiliʻi o ka nui o ka nui o nā pōhaku i hoʻohana ʻia, ʻo ka ratio void e pono e hoʻopiha ʻia i ka hui ʻana he nui, aia kahi helu kaulike ma waena o nā kūlana i luna, a he liʻiliʻi ka nui o ka mortar e pono ai no ka hui ʻana.