Nā waiwai kumu o Drymix mortar

ʻO Drymix Mortar ka mea i hoʻohana nui ʻia a ʻo kekahi o nā mea pono i ka ʻenehana kūkulu hale hou. Ua haku ʻia me ka sima, ke one a me nā mea hoʻohui. ʻO ka sima ka mea hoʻoheheʻe nui. I kēia lā e aʻo hou e pili ana i nā waiwai kumu o ka mortar drymix.

ʻO ka pahū hana: He mea hana ia i hoomakaukauia e ka mea sima, ka huikau maikai, ka huipu ana a me ka wai ma na huina kupono.

ʻO ka pā pōhaku: O ka hamo e hoopaa ai i na pohakulepo, pohaku, poloka, etc. Hoʻokani ka mortar masonry i nā poloka cimenting a me ka lawe ʻana i ka ukana, a he mea nui ia o ka masonry.

1. Nā mea hoʻohui ʻia o ka mortar masonry

(1) ʻO nā mea hana sima a me nā mea hoʻohui

ʻO nā mea hoʻomaʻemaʻe i hoʻohana mau ʻia i ka mortar masonry, ʻo ia ka cement, lime paste, a me ka gypsum hale.

Pono e koho ʻia ka māka ikaika o ka sima i hoʻohana ʻia no ka mortar masonry e like me nā koi hoʻolālā. ʻAʻole pono e ʻoi aku ka nui o ka ikaika o ka sima i hoʻohana ʻia i ka mīkini sima ma mua o 32.5; ʻAʻole pono e ʻoi aku ka nui o ka ikaika o ka sima i hoʻohana ʻia i loko o ka momi i hui ʻia ma mua o 42.5.

I mea e hoʻomaikaʻi ai i ka hana ʻana o ka mīkini a hoʻemi i ka nui o ka sima, ua hui pinepine ʻia kekahi mau lime paʻi, pālolo a i ʻole lehu lele i loko o ka pahu sima, a ua kapa ʻia ka mortar i hoʻomākaukau ʻia ma kēia ʻano. ʻAʻole pono kēia mau mea i nā mea ʻino e pili ana i ka hana o ka mortar, a i ka wā e loaʻa ai nā ʻāpana a i ʻole nā ​​agglomerates, pono lākou e kānana ʻia me kahi sieve 3 mm square hole. ʻAʻole pono e hoʻohana pono ʻia ka pauka lime i hoʻopaʻa ʻia i loko o ka paʻi pōhaku.

(2) Huina maikai

ʻO ke one i hoʻohana ʻia no ka paʻipaʻi ʻana he one waena, a ʻo ka ʻōpala ʻōpala he one koʻikoʻi. ʻAʻole pono ka nui o ka lepo o ke one ma mua o 5%. No ka mortar i hui pū ʻia me ka ikaika o M2.5, ʻaʻole pono ka nui o ka lepo o ke one ma mua o 10%.

(3) Nā koi no nā mea hoʻohui

E like me ka hoʻohui ʻana o nā admixtures i loko o ka koneki, i mea e hoʻomaikaʻi ai i kekahi mau waiwai o ka mortar, admixtures e like me ka plasticizing, ka ikaika mua,cellulose etera, hiki ke hoʻohui pū ʻia ka antifreeze, a me ka retarding. ʻO ka maʻamau, pono e hoʻohana ʻia nā admixture inorganic, a pono e hoʻoholo ʻia ko lākou ʻano a me nā dosage ma o nā hoʻokolohua.

(4) ʻO nā koi no ka wai pahū e like me nā koi no ke kaʻa.

2. ʻO nā waiwai ʻenehana o ka hui ʻana i ka masonry mortar

(1) Ka wai o ka hamo

ʻO ka hana o ka mortar e kahe ana ma lalo o kona kaumaha ponoʻī a i ʻole ka ikaika o waho i kapa ʻia ʻo ka fluidity o ka mortar, i kapa ʻia hoʻi ka kūlike. ʻO ka helu kuhikuhi e hōʻike ana i ka wai o ka mortar ʻo ia ke degere kuʻi ʻana, i ana ʻia e ka mika kūlike o ka mortar, a ʻo kāna ʻāpana he mm. ʻO ke koho ʻana i ka paʻa ʻana o ka mortar i ka papahana e pili ana i ke ʻano o ka masonry a me ke ʻano o ke aniau hana, hiki ke koho ʻia ma ke kuhikuhi ʻana i ka Papa 5-1 ("Code for Construction and Acceptance of Masonry Engineering" (GB51203-1998)).

ʻO nā mea e pili ana i ka wai o ka mortar: ʻo ka hoʻohana ʻana i ka wai o ka mortar, ke ʻano a me ka nui o nā mea cementitious, ke ʻano o ka ʻāpana a me ka gradation o ka aggregate, ke ʻano a me ke ʻano o ka admixture, ke ʻano like o ka hui ʻana, etc.

(2) Paʻa wai o ka pahū

I ka wā o ka lawe ʻana, kaʻa a me ka hoʻohana ʻana i ka mortar hui ʻia, pale ia i ka hoʻokaʻawale ʻana ma waena o ka wai a me nā mea paʻa, ma waena o ka slurry maikaʻi a me ka aggregate, a ʻo ka hiki ke mālama i ka wai ka paʻa ʻana o ka wai. ʻO ka hoʻohui ʻana i ka nui kūpono o ka microfoam a i ʻole plasticizer hiki ke hoʻomaikaʻi nui i ka paʻa ʻana o ka wai a me ka wai o ka mortar. ʻO ka paʻa ʻana o ka wai o ka mortar e ana ʻia e kahi mika delamination mortar, a ua hōʻike ʻia e ka delamination (. Inā ʻoi aku ka nui o ka delamination, ʻo ia ke ʻano o ka mortar i ka delamination a me ka hoʻokaʻawale ʻana, ʻaʻole kūpono i ke kūkulu ʻana a me ka paʻakikī sima. ʻAʻole pono e ʻoi aku ka nui o ka delamination o ka mortar ma mua o 3 0mm Inā ʻoi aku ka liʻiliʻi o ka delamination, ʻoi aku ka maikaʻi o ka hoʻomaloʻo ʻana i nā māwae, no laila ʻaʻole pono ka delamination o ka mortar ma lalo o 1 0mm.

(3) Hoʻonohonoho manawa

E loiloi ʻia ka manawa hoʻonohonoho o ke kūkulu ʻana i ka mortar ma muli o ke kūpaʻa komo ʻana a hiki i 0.5MPa. ʻAʻole pono e ʻoi aku ka nui o ka pahu sima ma mua o 8 mau hola, a ʻo ka mortar hui ʻia ʻaʻole pono ma mua o 10 mau hola. Ma hope o ka hoʻohui ʻana i ka admixture, pono ia e hoʻokō i ka hoʻolālā a me nā koi kūkulu.

3. Nā waiwai ʻenehana o ka mortar masonry ma hope o ka paʻakikī

Hoʻohana ʻia ka ikaika compressive o ka mortar ma ke ʻano he kuhikuhi ikaika. ʻO ka nui o ka hōʻailona maʻamau he 70.7 mm cubic specimens, he hui o 6 specimens, a ʻo ka moʻomeheu maʻamau a hiki i 28 lā, a ua ana ʻia ka ikaika compressive awelika (MPa). Hoʻokaʻawale ʻia ka mortar masonry i ʻeono mau māka ikaika e like me ka ikaika compressive: M20, M15, M7.5, M5.0, a me M2.5. ʻAʻole pili ka ikaika o ka mortar i ka hoʻohui a me ka hapa o ka mortar ponoʻī, akā pili pū kekahi i ka hana hoʻoheheʻe wai o ke kumu.

No ka mīkini sima, hiki ke hoʻohana ʻia ke ʻano o ka ikaika e koho ai:

(1) Ke kumu ʻole-absorbent (e like me ka pōhaku paʻa)

ʻO ke kumu non-absorbent ka mea nui e pili ana i ka ikaika o ka mortar, ʻo ia hoʻi ka mea like me ka mea paʻa, ʻo ia hoʻi, ua hoʻoholo ʻia e ka ikaika sima a me ka ratio wai-cement.

(2) Ke kumu hoʻoheheʻe wai (e like me nā pōhaku lepo a me nā mea porous ʻē aʻe)

ʻO kēia no ka mea hiki i ka papa kumu ke komo i ka wai. Ke komo ia i ka wai, ʻo ka nui o ka wai i mālama ʻia i loko o ka pahū e pili ana i kona paʻa wai ponoʻī, a ʻaʻohe mea liʻiliʻi i ka ratio wai-cement. No laila, ʻo ka ikaika o ka mortar i kēia manawa e hoʻoholo nui ʻia e ka ikaika o ka sima a me ka nui o ka sima.

ʻO ka ikaika paʻa o ka mortar masonry

Pono e loaʻa i ka mortar masonry ka ikaika hui like e hoʻopaʻa i ka masonry i loko o kahi paʻa paʻa. ʻO ka nui o ka ikaika cohesive o ka mortar e hoʻopili i ka ikaika shear, ka lōʻihi, ka paʻa a me ke kūpaʻa vibration o ka masonry. ʻO ka maʻamau, piʻi ka ikaika cohesive me ka piʻi ʻana o ka ikaika compressive o ka mortar. ʻO ka hui pū ʻana o ka mortar e pili pū ana me ke ʻano o ka ʻili, ka pae o ka pulu a me nā kūlana hoʻōla o nā mea masonry.