Mvura-inoderedza admixtures (WRA) uye superplasticizers makemikari admixtures anoshandiswa mukongiri musanganiswa kuvandudza kushanda kwayo uye kuderedza mvura zvirimo pasina kukanganisa kusimba kwechigadzirwa chekupedzisira.Mutsanangudzo iyi yakadzama, tichatarisa zvakadzama musiyano uripo pakati pemhando mbiri idzi dzezviwedzere, tichiongorora zvinosanganisa zvazvo, maitiro ekuita, mabhenefiti, uye mashandisiro muindasitiri yekuvaka.
A.1.Mvura inoderedza mumiririri (WRA):
Mvura-inoderedza musanganiswa, inozivikanwawo seplasticizer kana mvura-inoderedza admixture, ikemikari yakasanganiswa yakagadzirirwa kuderedza huwandu hwemvura inodiwa mumusanganiswa wekongiri pasina kukanganisa maitiro ayo.Aya maajenti anonyanya kuita seanoparadzira, achifambisa kupararira kwemasimende uye nekusimudzira zvirinani hydration.Chinangwa chikuru cheWRA ndechekuvandudza kushanda kwekongiri nekuderedza chiyero chemvura-simende, izvo zvinogona kutungamirira kune zvakasiyana-siyana panguva yekuvaka.
2. Mabasa:
WRAs anowanzo organic compounds akadai se lignosulfonates, sulfonated melamine formaldehyde (SMF), sulfonated naphthalene formaldehyde (SNF), uye polycarboxylate ethers (PCE).
Lignosulfonates inotorwa kubva muhuni pulp uye ndeimwe yemhando dzekutanga dzekudzikisa mvura.
SMF uye SNF mapolymer ekugadzira anoshandiswa zvakanyanya muindasitiri.
PCE iWRA yemazuva ano inozivikanwa nekunyanya kushanda kwayo uye kuita zvakasiyana.
3. Nzira yekuita:
Iyo meshini inosanganisira adsorption yemvura inodzikisa mumiririri pamusoro pemasimende, zvichiita kuti zvimedu izvi zvipararire.
Kupararira uku kunoderedza interparticle masimba, zvichiita kuti zvive nani fluidity uye kushanda kwekongiri musanganiswa.
4.Benefits:
Inovandudza kushanda: WRA inowedzera kuyerera uye kupomba kwekongiri, zvichiita kuti zvive nyore kuisa uye kupedza.
Inoderedza Hunyoro Zvemukati: Nekudzikisa chiyero chemvura-simende, WRA inobatsira kuwedzera kusimba uye kusimba kwekongiri yakaoma.
Zvirinani Kubatana: Kuparadzira mhedzisiro yeWRA inovandudza homogeneity yemusanganiswa, nekudaro inovandudza kubatana uye kuderedza kupatsanura.
5.Kushandisa:
WRA inogona kushandiswa munzvimbo dzakasiyana siyana dzekuvaka kongiri dzinosanganisira dzimba dzekugara, dzekutengesa uye dzezvivakwa.
Zvinonyanya kubatsira apo kushanda kwakanyanya uye kuderera kwehunyoro hwemukati zvakakosha.
B.1.Yakakwirira-inoshanda yekudzikisa mvura mumiririri:
Superplasticizers, inowanzonzi superplasticizers, inomiririra chikamu chepamberi uye chinoshanda mukati mekirasi yakafararira ye superplasticizers.Izvi zvinowedzera zvinopa masimba epamusoro ekudzikisa mvura paunenge uchichengetedza kana kusimudzira zvimwe zvinodiwa zvekongiri.
2. Mabasa:
Yakakwirira-inoshanda yekudzikisa mvura maajenti anosanganisira advanced polycarboxylate ethers (PCE) uye yakagadziridzwa polynaphthalene sulfonates.
PCE inozivikanwa nekugadzirwa kwayo kwema molecular iyo inobvumira kunyatso kudzora kwekupararira uye kuderedza mvura.
3. Nzira yekuita:
Zvakafanana neyakajairwa superplasticizers, superplasticizers inoshanda nekushambadza pane simende zvimedu uye kukonzera kupararira.
Iyo molecular chimiro chePCE inobvumira hukuru hwekutonga uye kuchinjika mukuwana inodiwa maitiro ekuita.
4.Benefits:
Superior Water Reduction: High-effective WRAs inogona kuderedza zvakanyanya mvura yemukati, kazhinji inodarika kugona kwemaWRA akajairwa.
Enhanced workability: Aya maajenti ane yakanakisa kuyerera zvivakwa uye akakodzera kushandiswa mu-self-compacting kongiri uye mamwe maapplication anoda kushanda kwakanyanya.
Kuvandudzwa kwekuchengetedza slump: Mamwe maWRA anoshanda akanyanya anogona kuwedzera kudonha, nekudaro achiwedzera nguva yekushanda pasina kukanganisa kuita kwekongiri.
5.Kushandisa:
Superplasticizers inogona kushandiswa mumhando dzakasiyana-siyana dzekushandisa, kusanganisira yakakwirira-yakasimba kongiri, inozvigadzirisa kongiri, uye mapurojekiti ane stringent durability zvinodiwa.
C. Misiyano mikuru:
1. Kunyatsogona:
Musiyano mukuru ndeyekuderedza mvura kushanda zvakanaka.High-inoshanda mvura regenerators inogona kuderedza zvinyorwa zvemvura zvakanyanya kupfuura zvechinyakare mvura regenerator.
2. Molecular design:
High-effective WRAs, kunyanya maPCE, ane mamwe mamorekuru akaomesesa magadzirirwo anobvumira kunyatso kudzora kwekupararira kwemhedzisiro.
3. Kushanda uye kuchengetedza kudonha:
Yepamusoro-inoshanda WRA kazhinji ine zvirinani kushanda uye kuderera kwekuchengetedza masimba, zvichiita kuti ive yakakodzera kune yakakura siyana yekongiri yekushandisa.
4. Mutengo:
Yepamusoro-inoshanda WRA inogona kudhura kupfuura yechinyakare WRA, asi kuita kwayo kwepamusoro kunopembedza kushandiswa kwayo mumapurojekiti chaiwo anoda kushanda kwepamusoro.
Mvura-inoderedza musanganiswa uye superplasticizers inoita basa rakakosha mukugadzirisa zviyero zvekongiri.Nepo maWRA akajairwa akashandiswa zvinobudirira kwemakore mazhinji, maWRA ane hunyanzvi, kunyanya maPCE, anomiririra mhinduro yepamusoro inopa hunyanzvi hwekudzikisa mvura uye hunhu hwekuita.Sarudzo pakati pezviviri zvinoenderana nezvinodiwa chaizvo zvechirongwa chekuvaka uye chiyero chinodiwa pakati pemutengo nekuita.
Nguva yekutumira: Jan-25-2024