Ako mo te Awe o te Superplasticizer ki runga i nga Taonga Raima

Tikanga awe o superplasticizer i runga i nga taonga raima

Ko te Superplasticizer he momo rawa hanga, i te whakamahi i te pahuka me te mirumiru me etahi atu mirumiru sol, a he rereke nga ahuatanga me nga tikanga hanga, na te superplasticizer katote. I muri i te taapiri i te superplasticizer ki te ranunga raima, ka uru te superplasticizer ki te mata o nga matūriki ciment. Ko te tikanga, mō 80% o superplasticizer ka adsorbed e matūriki ciment, kia taea ai e ratou te pupuri i te ahua whakahiatotanga mo te wa roa kaore he tohatoha. I te kore e taapirihia te superplasticizer, te raima ka whai i te nui o te hau (mō 2%), i hanga e te rahi o te mirumiru he koretake, a ko te tohatoha he tino koretake. I muri i te taapiri i te superplasticizer ki te raima, ka taea e te tohatoha o nga taapiri raima te pupuri i nga taonga pai me te whakapai ake i te mahi o te raima, penei i te pakari o te raima. I tua atu, ko te taapiri i te superplasticizer ki te whakaranu raima ka awhina i te whakaiti i te kohi wai i roto i te whakaranu raima. Ko nga mirumiru hau iti ka hangaia ka awhina i te whakakii i nga pores moroiti ki te raima, tino whakapai ake i te anti-permeability o te raima, me te whakarei ake i tana matū anti-corrosion me te kaha anti-pakeke. Ka taea te whakauru i te superplasticizer ki te heke wai kore utu o nga rawa o roto, e awhina ana ki te whakaheke i te pehanga superplasticizer pateko me te whakarei ake i te aukati o te raima ki te hurihanga whakatio-rewa tonu.. Ka taea e te Superplasticizer te whakaheke i te tere o te tauhohenga o te hydration o te ciment i waenganui me te mutunga o te atamira, te whakapai ake i te kaha o te ciment me te whakarei ake i tana mahi anti-whakawhanui. No reira, i te ranu raima, i tua atu i te whakaaro ki te kirikiri, kohatu, sima me etahi atu mea tikanga, te taapiri tika o te nui o te superplasticizer hei whakapai ake i te whakamahinga o te mahi raima.

1) Te awenga o te superplasticizer ki te paheketanga o te raima hou i konatunatua

I te wetewete i te kaha mahi me te rere o te raima, he taupū matua ko te heke. Ko te nui ake o te uara, ka pai ake te rere o te raima. Ko te ngaronga o te paheketanga e pa ana ki te rereketanga i waenga i te paheketanga raima i whanganga ano i muri i te waa motuhake me tona hekenga tuatahi. Ko nga mea whakaawe ko te ciment, ngā āhuatanga whakahiato me te ōwehenga wai-sima, etc. Ko te momo o te superplasticizer he take whakaawe matua. I te timatanga o te 30min, Ko te superplasticizer raupapa naphthalene te nui rawa o te pakaru o te raima, kaute mo 60%, whai i te melamine raupapa superplasticizer kaihoko (30%) me te superplasticizer raupapa waikawa polycarboxylic (20%), i tohu ko te superplasticizer raupapa waikawa polycarboxylic he pai rawa atu te whakamarumaru o te pakaru o te raima. Mai i tona tikanga hanga, te tari o te waikawa polycarboxylic superplasticizer i roto i nga mea raima ka uru ki te mata o te sima, kia rite ki te ara trapezoidal ka taea te sima rāpoi polymer adsorption paparanga i hanga e te repulsion electrostatic pānga atu marara, whakarei ake i tona pumau, na raima te taapiri i te punaha waikawa polycarboxylic i muri i te superplasticizer, ka taea te whakaiti i te ngaro o te heke.

(2) Te awe o te superplasticizer ki runga i te kaha compressive o te raima hou i konatunatua.

Ko te kaha o te raima i tito mai i nga momo superplasticizer he rereke nga paanga. Ma te whakamahi i te superplasticizer, Ka taea e tino whakaiti i te ranu o te kohi wai whakaranu raima, te whakapai ake i te tohu hydration o te ciment, whakapai ake i te raima i ia tau (3 d, 7 d me 28 d) kaha, mai i te toru, ko te superplasticizer tino pai o te kaha o te raima raima i tino teitei ake i tera o te raima parakore te kaha o te raima., 3 d, 7 d, a 28 d he nui ake te tere o te piki o te kaha kōpeke 15%, 20%, a 30% ia. I tua atu, Ko te momo raima me te kaha o te kaha o te kaha o te kopiri i te timatanga ko te raima i konatunatua ki te waikawa polyhydroxy superplasticizer., a ko tona uara kaha compressive hoki te teitei i muri 28 nga ra. Heoi ano, te raima titoa o naphthalene raupapa superplasticizer he iti te kaha kōpeke i te atamira tuatahi, e tohu ana he iti noa te kaha o tana mahi moata.

(3) Te awenga o te superplasticizer i runga i te mahi pakaru wawe o te raima hou i konatunatua

Ka puta nga tauhohenga tinana me te matū i waenga i te raima me te whakauru, sima, me nga whakauru. A kind of superplasticizer is in the concrete that some kind of cement place forms relatively small slump, appear in another kind of cement however relatively big slump loss may appear, do not exist so the superplasticizer that has a good effect to any kind of cement. In the actual evaluation of concrete quality, commonly used evaluation indicators mainly include concrete slump and strength, but it is easy to ignore the volume stability of concrete, easy to induce early shrinkage cracks, may accelerate concrete cracking, affect the durability and safety of the building structure. From the factors that affect the early cracking of the concrete, in addition to wind speed and ambient temperature, the type and amount of admixture are also very important factors.

Ko te whakamatautau e whakaatu ana ko te whanui kapiti morahi me te waahi kapiti o te raima i hangaia e te superplasticizer-melamine te mea iti rawa., kei roto ko te waahi kapiti anake 76% o te uara rite o te waikawa polycarboxylic superplasticizer me 52% o te uara o te naphthalene superplasticizer. He tata noa te whanui kapiti morahi 40% o te uara o te waikawa polycarboxylic me te superplasticizer naphthalene. I te timatanga o te wa pakaru o te raima, ko te awe o te momo whakaurunga kaore he mea nui, e pa ana ki te whakauru whakauru me etahi atu mea.

(4) Te awe o te superplasticizer i runga i te mauroa o te raima hou i konatunatua

Ko te Superplasticizer i runga i te roa o te raima he nui ake te paanga, te nuinga whakaaturia rite: (1) te paanga o te aukati hukapapa raima. Na te iti ake o te owehenga wai-sima, ko te pai ake o te whakatio-whakarewa o te raima. Ma te taapiri i te superplasticizer me te paanga o te hau, kua tino pai ake te parenga whakatio-rewa o te raima. Me whakahaere te nui o te hau i roto 2%, a kaua e neke ake te morahi 6%. Kore, te kaha me te mauroa o te raima ka raru kino.

(2) te awenga o te koretake o te raima. Te ōwehenga wai-sima, hei take matua e pa ana ki te koretake o te raima, mehemea he nui ake tona uara i 0.55, ka nui ake i te kohi wai o te hydration ciment me te hanga i te maha o nga kohao toto i roto i te raima, te whakanui ake i te uruhanga o te raima. Mena he iti rawa te owehenga wai-sima, ka pa te mahi o te raima, ka pa te kino ki te aukati o te raima.

Ko Cie-China.org te kaiwhakarato taapiri raima pahuka e whakarato ana i te kaihoko hukapapa raima, superplasticizer,whakakaha kaha raima pahuka mo te raima mama, Nga poraka CLC. Mena kei te rapu koe pahuka agent, tēnā koa koa whakapā mai.