Ka lā hoʻouna: 01, Nov, 2021

ʻAʻole hiki ke hana me ka ʻole o ʻekolu mau mea, ka hui ʻana, ka pauka a me nā mea wai. ʻO kēia ka ʻāpana nui o nā mea e pono ai ka hui ʻana. He aha nā ʻano?

ʻO ka mea mua, e kamaʻilio e pili ana i ka mea maʻamau i hoʻohana ʻia i ka wai hoʻohaʻahaʻa wai.sodiumnaphthalenesulfonatekiʻekiʻe ka hana hoʻohaʻahaʻa wai,polycarboxylic acidkiʻekiʻe ka hana ho'ēmi wai amea hoemi wai lignin.

Sodiumnaphthalenesulfonate mea hoemi wai kupono:ʻO kēia ʻano mea hoʻohaʻahaʻa wai he synthesis kemika o ke ʻano ʻano ʻole o ka ea hoʻohaʻahaʻa wai maikaʻi ʻole, i nā ʻāpana sima he hopena hoʻopuehu ikaika, i ka hoʻonohonoho ʻana o ke kahe kahe, a me ka ikaika mua, nā koi ikaika kiʻekiʻe o ka hoʻoheheʻe ʻia ma-situ a me ma mua o ka hana ʻana, he hopena maikaʻi loa ka hoʻohana ʻana i ka mea hoʻemi wai. ʻO nā alahaka, nā DAMS, nā awa a me nā uapo, nā tunnels, ka mana uila, ka mālama wai a me nā papahana hana kīwila a me nā mea mālama kūlohelohe.

Polycarboxylicsuperplasticizer ʻO ka mea hoʻohaʻahaʻa wai maikaʻi kiʻekiʻe: he ʻano hou kēia o ka mea hoʻohaʻahaʻa wai, ʻike ʻia ʻo ka "ideal" kiʻekiʻe kiʻekiʻe hana hoʻohui ʻia, hiki ke hoʻohui ʻia me nā ʻano hoʻohui like ʻole i nā mea hoʻohui multi-functional, e like me ka pumping agent, ka mea ikaika mua, anti-seepage agent, coagulant.The water reduction rate of 1%polycarboxylic acid superplasticizerhe 35%, a ua hoʻonui ʻia ka ikaika mua ma mua o 50%.

Lignosulphonate hoʻohana ʻia ma ke ʻano he mea hoʻohaʻahaʻa wai i ka 0.2-0.3%, hiki ke hōʻemi i ka hoʻohana ʻana i ka wai hui ʻana i ka wai 10% -12%, hoʻemi i ka ratio wai-cement, mālama i ka sima ma kahi o 10%, hoʻomaikaʻi i ka hiki ke hana paʻa, ka wai a me ke kūpaʻa permeability, hoʻomaikaʻi i ka ikaika paʻa a ʻO ka compactness, me ka hopena ikaika mua, hoʻopōkole i ka manawa hoʻonohonoho, hoʻomaikaʻi i ka ikaika compressive. I ka manawa like e hōʻemi i ka poho slump.

He aha ke ʻano o ka admixture, e like me ka ʻenehana ponoʻī o ka mea kūʻai aku e pono ai e hoʻokō, ʻōlelo maʻamau mākou he ʻoi aku ka maikaʻi o ka hoʻololi ʻana o ke kahua hui ʻenehana ʻenehana, ʻoi aku ka nui o ke koho ʻana o ka admixture i kahi kokoke i ka papahana, ʻo ia ke kumu e nui ai nā papahana. ke hoʻokomo nei i ke kūkulu ʻana i ke kahua hui nui a ʻaʻole kūʻai pololei i ka ʻoihana ʻoihana.