E hana i ka pahū hou me ka paʻa wai maikaʻi:

ʻO ke kaʻina hana hydration Cement he hana lohi, e like me ka hiki ʻole o ka sima ke hoʻopili me ka wai no ka manawa lōʻihi, ʻaʻole hiki ke hoʻomau i ka hydration, no laila e pili ana i ka ulu ikaika ma hope. ʻOi aku ka ikaika o ka polimer modified mortar ma mua o ka waiwai maʻamau, ʻo ke kumu ʻo ia kaka pauka polymer redispersiblehoʻomaikaʻi i ka hiki ke mālama i ka wai, no laila e hoʻonui ka ikaika hope o ka sima. ʻO ka lua, ʻo ka hoʻokumu ʻana i ka māhele polymer liʻiliʻi i ka mortar, hoʻomaikaʻi i ka ikaika paʻa.

E hoʻomaikaʻi i ka hana o ke kūkulu ʻana i ka mortar hou:

Ma hope o ka hoʻohui ʻana i ka pauka polymer redispersible i loko o ka mortar maloʻo maloʻo, ua hoʻomaikaʻi maikaʻi ʻia ka hana o ka mortar, ʻo ia ka mea ma muli o nā kumu penei: A. I ka hui ʻana i ka pauka polymer redispersible a me ka mortar, no ka mea, ua uhi ʻia nā ʻāpana polymer pauda redispersible e ka colloid pale pale wai. , Hiki i ka papa uhi ke pale i ka hoʻohuihui ʻole ʻia ma waena o nā ʻāpana polymer i loaʻa ka hopena lubrication ma waena o nā ʻāpana, hiki ke hoʻopuehu ʻia nā ʻāpana polymer i ke kaumaha o ka slurry sima, ʻO kēia mau mea i hoʻopuehu ʻia, e like me nā bearings, hiki ke hoʻokaʻawale i nā ʻāpana mortar a hoʻomaikaʻi i ka hiki ke hana o ka moka. B. redispersible polymer pauda nona iho i kekahi ea engendering hopena, redispersible polymer pauda ma ka ea induction hopena e haawi mortar compressibility, no laila, i ka mortar i hana maikai workability. Eia kekahi, ʻo ka loaʻa ʻana o nā micro bubbles ke pāʻani nei i kahi ʻōwili i ka hui ʻana i mea e hoʻomaikaʻi ai i ka hana o ka hui ʻana.

ʻO ka pauka polymer hiki ke hoʻokuʻu ʻiae hoʻomaikaʻi i ka maʻalahi a me ka pale ʻana o ka mortar:

Ma hopeka pauka polymer redispersibleua hoʻohui ʻia i ka mortar, ua hoʻomaikaʻi nui ʻia ka ratio compression mortar a me tensile ratio, e hōʻike ana ua hoʻemi nui ʻia ka palupalu o ka mortar, hoʻomaikaʻi nui ʻia ka paʻakikī, no laila e hoʻomaikaʻi ʻia ke kūʻē ʻana o ka moka.ka pauka polymer redispersiblei ka mortar dehydrating film, ʻaʻole wale e hoʻopiha i nā hemahema a me nā pores i ka pōhaku sima, akā i nā huahana cementhydration a me ka gluing aggregate e hana i ka polymer interpenetrating network, no ka mea, ʻoi aku ka haʻahaʻa o ka modulus elastic o ka kiʻiʻoniʻoni polymer ma mua o ka mortar, no laila ka brittleness o ka mortar. ua hoemiia. Hoʻonui ka mortar flexibility i ka palena deformation kiʻekiʻe o ka mortar i ka wā e pōʻino ai, a ʻo ka ikehu i koi ʻia e ka hemahema a me ka micro-crack propagation e hoʻopili ʻia i kahi ākea nui, i hiki ai i ka mortar ke hoʻokau i ke koʻikoʻi ma mua o ka hiki ʻole. Eia kekahi, ʻo ka kiʻiʻoniʻoni polymer i loko o kahi mīkini hoʻopololei ponoʻī, a ʻo ke kiʻiʻoniʻoni polymer e hana i kahi iwi ʻoʻoleʻa i loko o ka mortar hydrated sima, kahi i loaʻa i kahi hopena hui hoʻoneʻe, e hōʻoia i ka elasticity a me ka paʻakikī o ka iwi paʻa. Aia nā pores ma ka ʻili o ka polymer film i hoʻokumu ʻia ma ka ʻili o nā ʻāpana mortar, a ua hoʻopiha ʻia nā pores e ka mortar, kahi e hoʻemi ai i ka hoʻoluhi kaumaha a hoʻopuka i ka hoʻomaha me ka ʻole o ka pōʻino ma lalo o ka hana o nā mana o waho. ʻO ka loaʻa ʻana o ka flexibility kiʻekiʻe a me ka ʻāpana polymer elasticity kiʻekiʻe e hoʻomaikaʻi i ka maʻalahi a me ka elasticity o ka mortar.