He aha ke kuleana o ka hydroxypropyl methylcellulose i loko o ka pahu pahu

ʻO ke kiʻekiʻe i hoʻemi ʻia o ka poloka hoʻāʻo i loko o ka mold ma hope o ka hoʻoheheʻe ʻana e hōʻike ana i ka hopena o ka hydroxypropyl methylcellulose i ka paʻa o ka leo o ka pahu pahu. Hiki ke ʻike ʻia ʻo ke ʻano o ka 0.05% hydroxypropyl methylcellulose ka mea kūpono loa, a inā ʻo ka nui o ka hydroxypropylmethylcellulose he 0.05%, hoʻonui ʻia ke kiʻekiʻe hoʻemi. Hōʻike ka loiloi inā kūpono ka hydroxypropyl methylcellulose, hiki iā ia ke hōʻemi i ka emi ʻana o ka nui o ke kino paʻakikī i ka hoʻomaikaʻi ʻana i ka wai o ka slurry. I ka wā o ka paʻakikī o ka slurry, nalowale ka wai. Hoʻopilikia mau ʻia ka ʻōpū o loko, a ʻo ka pōkole o ke kino paʻakikī ʻaʻole hiki ke pale ʻia. ʻO kēia ke kumu o ka paʻa ʻole o ka leo o ke kino paʻakikī, a ʻo ka hui ʻana o ka hydroxypropyl methylcellulose ʻaʻole wale e hoʻolako i ke kino paʻakikī ʻAʻole wale ka hopena paʻa wai maikaʻi, akā hoʻopaʻa a paʻakikī hoʻi i ka pahu mua ma o nā ʻano o ka slurry hardening a me ka hydroxypropyl. methylcellulose kiʻi paʻakikī i ka manawa like, i mea e pāʻani ai i kahi hopena hoʻomaha maikaʻi a hoʻemi i ka emi ʻana o ka nui o ke kino paʻakikī.

ʻO ka hoʻokūpaʻa ʻana i ka huʻu kōkua

I ka hoʻonui ʻia ʻana o ka hydroxypropyl methylcellulose i 0.5%, ua emi iki ka slump. Hōʻike ka ʻikepili inā ʻaʻole i ʻoi aku ka nui o ka hydroxypropyl methylcellulose ma mua o 0.05%, hiki i ka hoʻohui ʻana o ka hydroxypropyl methylcellulose ke hoʻomaikaʻi nui i ka wai a me ka viscosity o ka slurry concrete foamed. Ma hope o ka hoʻoheheʻe ʻia ʻana o ka hydroxypropyl methylcellulose, hoʻokumu ʻia kahi kiʻiʻoniʻoni elastika maʻemaʻe ma waena o nā ʻāpana paʻa paʻa a me nā ʻōpū o ke kinoea, he hopena maikaʻi loa i ka wā o ka hui ʻana. He manuahi ka slurry a me ka "poepoe", e hoʻomaikaʻi maikaʻi i ka wai o ka slurry hou i hui pū ʻia: akā inā ʻoi aku ka nui o ka hydroxypropyl methylcellulose ma mua o 0.5%, e lilo ka slurry i mea viscous a e hoʻemi nui ʻia ka wai. Eia naʻe, ʻaʻole ʻo 0.05% hydroxypropyl methylcellulose wale nō e hōʻoiaʻiʻo i ka hāʻule ʻana, akā hoʻopaʻa pū nō hoʻi i nā ʻōpū o ka ea, kahi kūpono no ka hoʻohui ʻana i nā kānaka.