Post Day:14,Mar,2022

Ua weheweheʻia kahi admixture ma mua o kahi mea'ē aʻe ma mua o ka wai, nā mea i hoʻohuiʻia e like me ka hoʻohuiʻana i kahi pākeke . ^. E like me kaʻikeʻia ma ka'āpana 1, he mea hoʻonaninaniʻo kemika i weheweheʻia e like me ka mea nonpozzulec (ʻaʻole pono i ka curltibude i keʻano o ka wai.

Hoʻohana ka wai o ka wai me nā maʻi maʻi me kaʻili o ka pākeke. ʻElua, i ka wā e hoʻohana ponoʻia, hāʻawi i nā hana kūpono maikaʻi. Eia kekahi, e hoʻokō nā admineturesʻelua i nā koi o Astm C 494 (eʻike i ka papa 1).

Wai-e hōʻemi i nā adminetures

Hana nui ka wai i nā mea e pono ai: e hōʻemi i ka nui o ka wai e pono ai e loaʻa i kahi slump. Hiki i kēia ke hopena i kahi hōʻemi o ka nui o ka wai-cementious ratio (w / c ratio), e alakaʻi ana i nā ikaika ikaika.

ʻO ka hōʻemiʻana i ka liloʻana o W / C REITION ORDER iʻikeʻia e like me ka mea nui loa e hana ai i nā mea nui, kiʻekiʻe kiʻekiʻe. Ma kaʻaoʻao'ē aʻe, i kekahi manawa e hoʻolōʻihiʻia kaʻike o ka cement i ka wā e mālama ai i ka uku W / C ROTO e hōʻemi i nā kumukūʻai a iʻole ka wela o ka hydration i nā kumukūʻai kiʻekiʻe.

E hōʻemi ana ka wai i nā admixxtute e hōʻemi i ka segragation a hoʻomaikaʻi i ke kahe o ka pā. No laila, ua hoʻohana pinepineʻia lākou no nā noi pākēneka e pili ana.

ʻO ka wai-e hōʻemi i nā admixters e hāʻule mau ana iʻekolu mau pūʻulu: haʻahaʻa-, medium- a me ke kiʻekiʻe. Kuhiʻia kēia mau pūʻulu ma ka laulā o ka hōʻemiʻana o ka wai no ka admineture. ʻO ka hapanui o ka hōʻemiʻana o ka wai e pili ana i ka wai hui pono e pono ai e loaʻa i kahi slump i hāʻawiʻia (ʻike i ka papa 2).

ʻOiai he mau mea likeʻole nā ​​mea āpau a pau, he noi kūpono kēlā me kēia e kūpono ai. Papa 3 E hāʻawi i kahi hōʻuluʻulu o nāʻano o nāʻano waiʻekolu e hōʻemi ana i nā admine ʻO kā lākou hopena ma ke komoʻana i ka ea e komo ai ma muli o ka chemistry.

Pehea lākou e hana ai

Ke hele mai nei ka cement i ka wai, nā kumu uila uila e pili ana i ka papahele o nā cement ʻO kahi hapa maikaʻi o ka wai e hoʻopiliʻia i kēia kaʻina hana, e alakaʻi ana i kahi hui kūpono a hōʻemi i ka slump.

E hōʻemi i ka wai-e hōʻemi i nā mea e pono ai e pili ana i nā mea e pili ana i nā'āpana i nā'āpana a me nā kumu āpau e lawe ai i nā uku. Mai nā mea e like me nā mea e like me nā uku e hoʻonui ai i kēlā me kēia, e hōʻemi lākou i ka flocculation o nā'āpana cement aʻaeʻia no ka hoʻopiʻi maikaʻi aʻe. Hoʻemi pū lākou i ka viscosity o ka paste, hopena i kahi mea nui loa.

ʻO ka papaʻaina 4 e hāʻawi i kekahi o nā mea maʻamau maʻamau i hoʻohanaʻia no kēlā me kēia o ka nui o ka wai o ka wai. Hoʻohui houʻia nā māhele'ē aʻe ma muli o ka huahana a me ka mea hana. ʻO kekahi mau mea e hōʻemi ai i nā maʻi e hōʻemi i nā hopenaʻelua a i hui pūʻia paha me nā mea kaua a iʻole nā ​​mea hoʻoponopono.