ʻO ka mortar maloʻo maloʻo e pili ana i kahi mea granular a pauda paha i hana ʻia e ka hui kino ʻana o nā aggregates, nā mea hoʻoheheʻe inorganic, a me nā mea hoʻohui i hoʻomaloʻo ʻia a pale ʻia i kekahi ʻāpana. He aha nā mea hoʻohui maʻamau i hoʻohana ʻia no ka lepo maloʻo? ʻO kēia ka hoʻolauna ʻana i ka ʻike nui o nā mea hoʻohui mortar pauka maloʻo i lawe ʻia e Jianshe Net no ka ʻike.
Hoʻohana maʻamau ka mortar pauda maloʻo i ka sima Portland ma ke ʻano he mea sima, a ʻo ka nui o nā mea sima ma ke ʻano he 20% a 40% o ka mortar pauda maloʻo; ʻO ka hapa nui o nā hōʻuluʻulu maikaʻi he one quartz a koi i ka nui o ka hoʻomaʻamaʻa mua ʻana e like me ka hoʻomaloʻo ʻana a me ka nānā ʻana e hōʻoia i ka nui o ka nui a me ka maikaʻi e hoʻokō i nā koi o ke ʻano; I kekahi manawa ua hoʻohui pū ʻia ka lehu lele, ka pauka palaka, a me nā mea ʻē aʻe ma ke ʻano he hui hoʻohui; Hoʻohana pinepine ʻia nā mea hoʻohui i nā mea liʻiliʻi, mai ka 1% a i ka 3%, akā he hopena koʻikoʻi. Hoʻohana pinepine ʻia lākou e like me nā koi o ke ʻano huahana e hoʻomaikaʻi ai i ka hana, layering, ikaika, shrinkage, a me ke kūpaʻa hau o ka mortar.
He aha nā ʻano mea hoʻohui i hoʻohana maʻamau ʻia o ka pauka maloʻo?
ʻO ka pauka latex hiki ke hoʻopuka hou ʻia
EVA copolymerhiki ke hoʻomaikaʻi i kēia mau waiwai i loko o ka lepo maloʻo maloʻo:
① ʻO ka paʻa ʻana o ka wai a me ka hana ʻana o ka palaki hou i hui ʻia;
② Ka hana hoʻopaʻa ʻana o nā papa kumu like ʻole;
③ ʻO ka hana maʻalahi a me ka deformation o ka mortar;
④ ʻO ka ikaika a me ka pilina;
⑤ ʻAʻahu kūʻē;
⑥ ʻO ke kūpaʻa;
⑦ Paʻa (impermeability).
ʻO ka hoʻohana ʻana i ka pauka latex redispersible i loko o ka mortar plastering layer, ka mea hoʻopaʻa tile ceramic, ka ʻōnaehana insulation o waho, a me nā mea papahele hoʻopaʻa pono i nā hopena maikaʻi.
Mea mālama wai a mānoanoa
ʻO nā mea mānoanoa e hoʻopaʻa ai i ka wai, ʻo ia ka cellulose ethers, starch ethers, etc.hydroxypropyl methyl cellulose ether(HPMC).
ʻO ka hana maʻamau o nā mea hoʻohaʻahaʻa wai e hōʻemi i ka koi wai o ka mortar, a laila e hoʻomaikaʻi ai i kona ikaika compressive. ʻO nā mea hoʻohaʻahaʻa wai nui i hoʻohana ʻia i ka mortar pauka maloʻo he casein, naphthalene based water reducing agent, melamine formaldehyde condensate, a me polycarboxylic acid. ʻO Casein kahi Plasticizer maikaʻi loa me ka hana maikaʻi loa, ʻoi aku hoʻi no ka mortar papa lahilahi, akā no ka mea he huahana kūlohelohe ia, e loli pinepine kona ʻano a me ke kumukūʻai. Naphthalene series wai hoemi wai hoʻohana mau i ka β- Naphthalenesulfonic acid formaldehyde condensate.
Coagulant
ʻElua ʻano coagulants: accelerator a me retarder. Hoʻohana ʻia nā Accelerators e hoʻolalelale i ka hoʻonohonoho ʻana a me ka paʻakikī o ka mortar, Calcium formate a me Lithium carbonate i hoʻohana nui ʻia, a hiki ke hoʻohana pū ʻia ka Aluminate a me Sodium metasilicate e like me nā accelerators. Hoʻohana ʻia nā retarders e hoʻolōʻihi i ka hoʻonohonoho ʻana a me ka paʻakikī o ka mortar. Ua hoʻohana maikaʻi ʻia ka waika tartaric, ka waikawa citric a me kāna mau paʻakai a me ka waikawa Gluconic.
ʻAikini pale wai
ʻO ka mea hoʻoheheʻe wai ka mea nui: Iron(III) chloride, organic silane compound, fatty acid paʻakai, polypropylene fiber, Styrene-butadiene a me nā pūhui macromolecular ʻē aʻe. ʻO ka hao (III) chloride wai wai ka hopena maikaʻi ʻole, akā maʻalahi ke kumu i ka corrosion o ka hoʻoikaika a me nā ʻāpana metala. ʻO nā paʻakai calcium insoluble i hana ʻia e ka hopena o nā paʻakai ʻakika momona me nā ion calcium i ka waiho ʻana o ka sima ma nā paia o nā capillaries, e pāʻani ana i kahi kuleana i ka pale ʻana i nā pores a lilo i kēia mau paia capillary tube i mau mea hydrophobic, a laila e pāʻani ana i kahi kuleana wai. He haʻahaʻa loa ke kumukūʻai o ka Unite o kēia mau huahana, akā lōʻihi ka manawa e hoʻohui pū ai i ka moka me ka wai.
ʻO nā pulupulu i hoʻohanaʻia no ka pahū maloʻo maloʻo,ʻo ia ka alkali kū'ē i ke aniani fiber, polyethylene fiber (polypropylene fiber), kiʻekiʻe a me ka modulus kiʻekiʻe polyvinyl alcohol fiber (polyvinyl alcohol fiber), lāʻau, etc. ʻO nā mea i hoʻohana pinepineʻia he ikaika kiʻekiʻe a kiʻekiʻe modulus polyvinyl alcohol fibers a me polypropylene fibers. ʻOi aku ka maikaʻi o ka hana a me ke kumu kūʻai haʻahaʻa ma mua o nā fiber polypropylene i lawe ʻia mai ka ikaika kiʻekiʻe a me ka modulus kiʻekiʻe polyvinyl alcohol fibers. Hoʻokaʻawale ʻole ʻia nā fibers i ka sima matrix, a pili pū me ka sima e pale ai i ka hoʻokumu ʻana a me ka hoʻomohala ʻana o nā microcracks, e hana ana i ka mortar matrix paʻa, a pēlā e loaʻa ai ka hana wai a me ka hopena maikaʻi loa a me ke kūʻē ʻana. ʻO 3-19 mm ka lōʻihi.
Ka manawa hoʻouna: Jul-14-2023