Lagu daro la taaban karo oo khafiif ah | Wakiilada Xumbaynta Waxqabadka Sare ee Shabka Gacanta
Waa maxay qeexida biyo-yaraha?
Wakiilka biyaha-yareeya waa nooc ka mid ah isku darka la taaban karo, kaas oo wanaajin kara shaqada shubka, in la yareeyo isticmaalka tamarta dhismaha iyo hagaajinta waxtarka dhismaha. In shubka, Wakiilka yaraynta biyaha ayaa lagu daraa isku dhafka walxaha sibidhka saamaynta faafinta, taas oo kor u qaadi karta waxqabadka shaqada ee sibidhka. Marka la eego xaaladda hoos u dhigista la taaban karo si joogto ah, isku dhafka iyo kala-goynta wakiilka waxay si weyn u yareeyn kartaa isticmaalka halbeegga biyaha ee isku dhafka shubka ah waxayna yareyn kartaa saamiga sibidhka biyaha ee shubka waxayna wanaajisaa xoogga iyo xasilloonida shubka la xoojiyay. Ama hoos xaalad isku mid ah oo ku saabsan shaqada la taaban karo iyo xoogga, ku darida wakiilka biyaha dhimaya waxay yarayn kartaa unugga sibidhka si loo badbaadiyo sibidhka. Si kastaba ha ahaatee, Waxa kale oo jira dhibaatooyin qaar ka mid ah codsiga superplasticizer ee shubka. Tusaale ahaan, Marka inta badan ion superplasticizer ay yihiin surfactants anionic, Waxaa jiri doona qalabyada qaarkood sida lignin sulfonate, naphthalene sulfonate formaldehyde polymer, iwm..
Sida loo sameeyo wakiilka biyaha yareeya?
Isticmaalka methyl naphthalene iyo sulfur trioxide sida alaabta ceeriin, iyada oo loo marayo sulfonation, uumiye, dhexdhexaadin iyo falcelin kale, ugu dambeyntii iyada oo loo marayo qalajinta alaabta.
Dhibaatooyinka caadiga ah ee shubka shubka: Saamaynta ay wakiilka biyuhu ku leeyihiin biyaha dhiig baxa!
Marka loo eego habka ficilka ee wakiilka biyaha yareeya, molecules polar waxay ku qulqulayaan hareeraha qaybaha sibidhka, samaynta qurubyada iska celiya midba midka kale, yaraynta qulqulka, sii daynta biyaha ay ku daboolan yihiin qaybo sibidh ah, and thinning the adsorbed water layer on the surface of cement particles, greatly reducing the wetting water required. According to this mechanism, the water-reducing agent can increase the free water amount in fresh concrete and increase the bleeding water. But on the other hand, because of the water-reducing effect of water-reducing agent, the mixing water needed for concrete with the same slump degree greatly reduces the water, so that the concrete can extract free water to reduce water. The final bleeding condition depends on which function is dominant.
The adaptability of admixtures and cement also affects the bleeding of concrete.
What are the main research directions of concrete water reducer in the future?
(1) The production of water reducer materials can be further optimized the synthesized. Iyada oo loo marayo xulashada qalabka wax soo saarka iyo isbeddelka farsamada wax soo saarka, Qaab-dhismeedka molecular ee biyo-yaraha ayaa la hagaajiyay si loo hagaajiyo la qabsiga u dhexeeya biyo-yareeyaha iyo sibidhka, si kor loogu qaado saamaynta biyo-yaraynta.
(2) Laba ama in ka badan oo wax-ku-ool ah oo biyo-dhimis ah waa in lagu diyaariyaa qayb gaar ah, si loo beddelo waxqabadka qayb kasta isla waqti isku mid ah iyo in la keeno isuduwidda gudaha si loo soo saaro saameyn sare.
(3) Laga soo bilaabo jihada horumarinta polymer ee biyo-yaraynta cusub ee waxtarka leh, si dhamaystiran u wanaaji xoogga la taaban karo iyo adkeysiga, iwm, si loo yareeyo kharashka wax soo saarka.
Cie-China.org waa hormoodka bixiyayaasha xumbo-samaynta la taaban karo ee bixiya wakiilka xumbo-samaynta, superplasticizer,xoojinta xoogga shubka xumbo ee shubka fudud, CLC blocks. Haddii aad raadinayso superplasticizer, fadlan xor u noqo nala soo xidhiidh.