Kūkākūkā e pili ana i ka hopena o ka hoʻohui ʻana o Hydroxypropyl Methyl Cellulose ma nā ʻano o ka mortar.

Hiki i ka Hydroxypropyl methylcellulose HPMC ke hoʻomaikaʻi nui i ka paʻa ʻana o ka wai o ka palaki. Hiki ke hoʻomaikaʻi maikaʻi i ka nui o ka paʻa ʻana o ka wai o ka mortar ma kahi ʻano haʻahaʻa o ka hydroxypropyl methylcellulose HPMC. Ke 0.02% ka nui o ka wai, piʻi ka nui o ka mālama ʻana i ka wai mai 83% a hiki i 88%; i ka manawa he 0.2% ka nui o ka wai, ua hiki i ka 97%. I ka manawa like, ʻo ka haʻahaʻa haʻahaʻa o ka HPMC e hoʻemi nui i ke ʻano o ka delamination a me ke kahe koko o ka mortar, e hōʻike ana ʻaʻole hiki i ka HPMC ke hoʻomaikaʻi wale i ka paʻa ʻana o ka wai o ka mortar, akā hoʻomaikaʻi maikaʻi hoʻi i ka cohesion o ka mortar. He mea nui ia no ka kūlike o ka maikaʻi o ke kūkulu ʻana i ka mortar. maikaʻi loa.

Eia naʻe, loaʻa i ka hydroxypropyl methylcellulose HPMC kekahi degere o ka hopena maikaʻi ʻole i ka ikaika flexural a me ka ikaika compressive o ka mortar. Me ka hoʻonui ʻana o ka ʻike HPMC hydroxypropyl methylcellulose, ua emi mālie ka ikaika flexural a me ka ikaika compressive o ka mortar. I ka manawa like, hiki i ka hydroxypropyl methylcellulose HPMC ke hoʻonui i ka ikaika tensile o ka mortar. Ke hoʻonui ʻia ka maʻiʻo o ka hydroxypropyl methylcellulose HPMC i loko o 0.1%, piʻi mau ka ikaika tensile o ka mortar me ka piʻi ʻana o ka maʻiʻo HPMC, ʻoiai ke ʻoi aku ka ʻike ma mua o 0.1%, ʻaʻole e piʻi nui ka ikaika tensile. Hiki nō hoʻi i ka Hydroxypropyl methylcellulose HPMC ke hoʻonui nui i ka ikaika hoʻopaʻa ʻāwili compressive o ka pahū. Hiki i ka hoʻohui ʻana i ka 0.2% HPMC ke hoʻonui i ka ikaika paʻa mortar mai 0.72MPa i 1.16MPa.

Ua hōʻike ʻia nā haʻawina e hiki i ka hydroxypropyl methylcellulose HPMC ke hoʻolōʻihi i ka manawa hoʻoluʻu o ka pahū a hoʻemi nui i ka paheʻe ʻana o ka pahū, he mea maikaʻi loa ia no ke kūkulu ʻana i ka tile. Ke hoʻohui ʻole ʻia ka HPMC, hoʻemi ka ikaika paʻa o ka mortar no 20 mau minuke mai ka 0.72MPa a i ka 0.54MPa. Ma hope o ka hoʻohui ʻana i ka 0.05% a me ka 0.1% HPMC, ʻo ka ikaika paʻa o ka mortar i hoʻomaha ʻia no 20 mau minuke ʻo 0.8MPa a me 0.84MPa. Ke hoʻokomo ʻole ʻia ka HPMC, ʻo 5.5mm ka paheʻe ʻana o ka pahū. Me ka hoʻonui ʻana o ka ʻike HPMC, e emi mau ana ka paheʻe. Ke 0.2% ka waihona, hāʻule ka paheʻe o ka mortar i 2.1mm, a hoʻemi nui ʻia ka paheʻe. A ʻo ke kūkulu ʻana i nā ʻāpana lahilahi ʻē aʻe e hāʻawi i ke kākoʻo ʻenehana.

Eia hou, hiki i ka hydroxypropyl methylcellulose HPMC ke pale pono i ka hoʻokumu ʻana o nā māwae plastik i loko o ka pahū a hoʻemi nui i nā māwae plastik. Ke haʻahaʻa ka maʻiʻo o ka HPMC, e emi nui ka helu māwae me ka piʻi ʻana o ka maʻiʻo o HPMC. Inā he 0.1% a me 0.2% ka helu o ka HPMC, he 63% a me 50% ka helu māwae pili o ka mortar. Ma hope o ka ʻike ʻana o ka HPMC ma mua o 0.2%, ʻaʻole i hoʻemi nui ʻia nā māwae plastik o ka mortar.