Hurukuro pamusoro pezvinhu zvinokanganisa kuyerera kwedhaka

Iyo fluidity yedhaka, inowanzonzi sekushanda kwayo kana kuenderana, chinhu chakakosha chinokanganisa zvakasiyana-siyana zvekuvaka, kusanganisira kureruka kwekuiswa, compaction, uye kupedzisa. Zvinhu zvakati wandei zvinopesvedzera kuyerera kwedhaka, uye kunzwisisa zvinhu izvi kwakakosha kuti uwane kuita kwakaringana muzvirongwa zvekuvaka. Heino nhaurirano pane zvimwe zvakakosha zvinokanganisa fluidity yematope:

1. Mvura-ku-Binder Ratio: Mvura-ku-binder ratio, iyo inomiririra chiyero chemvura kune simentitious zvinhu (samende, lime, kana musanganiswa), inokanganisa zvakanyanya kuyerera kwedhaka. Kuwedzera mvura yemukati kunogona kuvandudza kushanda nekuderedza viscosity uye kuwedzera kuyerera. Zvisinei, mvura yakawandisa inogona kukonzera kupatsanurwa, kubuda ropa, uye kuderera kwesimba, saka zvakakosha kuchengetedza chiyero chakakodzera chemvura-kune-binder yemvura inodiwa pasina kukanganisa kushanda kwedhaka.
2. Type uye Gradation yeAggregates: Rudzi, saizi, chimiro, uye gradation yeaggregates inoshandiswa mudhaka inokanganisa rheological properties uye fluidity. Aggregates akanaka, akadai sejecha, anonatsiridza kushanda nekuzadza ma voids uye zvidimbu zvekuzora, nepo coarse aggregates inopa kugadzikana uye simba. Akanyatso giredhi aggregates ane yakaringana kugoverwa kwemasikisi ezvimedu anogona kuwedzera kurongedza uye kuyerera kwedhaka, zvichikonzera kuvandudzwa kwemvura uye kubatana.
3. Particle Size Distribution: Iyo particle saizi kugoverwa kwecementitious zvinhu uye aggregates inokanganisa kurongedza density, interparticle friction, uye kuyerera kwedhaka. Finer particles anogona kuzadza voids pakati pezvimedu zvakakura, kuderedza kusawirirana uye kunatsiridza kuyerera. Sezvineiwo, mutsauko wakakura mumasikisi ezvimedu zvinogona kutungamira kukupatsanurwa kwechidimbu, kusabatana kwakashata, uye kuderera kwemvura.
4. Chemical Admixtures: Chemical admixtures, senge zvinoderedza mvura, plasticizers, uye superplasticizers, zvinogona kukanganisa zvakanyanya kuyerera kwedhaka nekuchinja rheological properties. Zvidzikisi zvemvura zvinoderedza huwandu hwemvura hunodiwa kune yakapihwa slump, kuwedzera kushanda pasina kukanganisa simba. Plasticizers anonatsiridza kubatana uye kuderedza viscosity, nepo superplasticizers inopa kuyerera kwakanyanya uye yekuzvimisa-yega zvivakwa, kunyanya mu-self-compacting madhaka.
5. Binder Type uye Maumbirwo: Rudzi uye kuumbwa kwezvisungo, senge simende, lime, kana masanganiswa ayo, zvinopesvedzera hydration kinetics, kuseta nguva, uye rheological maitiro edhaka. Mhando dzakasiyana dzesimende (semuenzaniso, Portland simende, simende yakasanganiswa) uye zvekuwedzera simende zvinhu (semuenzaniso, madota anobhururuka, slag, silica fume) zvinogona kukanganisa kuyerera uye kusachinja-chinja kwedhaka nekuda kwekusiyana kwehukuru hwechikamu, reactivity, uye hydration maitiro.
6. Kusanganisa Maitiro uye Zvishandiso: Iyo yekusanganisa maitiro uye zvishandiso zvinoshandiswa kugadzira dhaka zvinogona kukanganisa fluidity uye homogeneity. Maitiro akakodzera ekusanganisa, kusanganisira yakakodzera nguva yekusanganisa, kukurumidza, uye kutevedzana kwekuwedzera kwezvinhu, zvakakosha kuti uwane yunifomu yekupararira kwezvinhu uye inowirirana rheological properties. Kusanganiswa kusina kunaka kunogona kukonzera kusakwana kwe hydration, kupatsanurwa kwechidimbu, uye kugovera kusiri kwakafanana kwezvakasanganiswa, zvichikanganisa kuyerera uye kuita kwedhaka.
7. Mamiriro Ezvakatipoteredza: Zvinhu zvakatipoteredza zvakaita setembiricha, hunyoro, uye kumhanya kwemhepo zvinogona kukanganisa kuyerera kwedhaka panguva yekusanganiswa, kufambisa, uye kuiswa. Kupisa kwepamusoro kunomhanyisa hydration uye kuseta, kuderedza kushanda uye kuwedzera njodzi yepurasitiki shrinkage kuparuka. Tembiricha yakaderera inogona kudzoreredza kuseta uye kudzikisira mvura, ichida kugadziridzwa kusanganisa zviyero uye admixture dosages kuti uchengetedze kushanda kwaunoda.

iyo fluidity yedhaka inopesvedzerwa nekubatanidzwa kwezvinhu zvine chekuita nemidziyo, musanganiswa dhizaini, maitiro ekusanganisa, uye mamiriro ezvakatipoteredza. Nekunyatso funga izvi zvinhu uye nekukwirisa musanganiswa chiyero, nyanzvi dzekuvaka dzinogona kuwana dhaka neinodiwa fluidity, kuwirirana, uye kuita kune chaiyo mashandisirwo uye zvinodiwa zveprojekiti.