Cov lus qhia rau kev siv cov tshuaj txo cov dej

Polycarboxylic acid-based high-performance dej-txo tus neeg sawv cev
1. Qhov ntau npaum li cas yog 0.5% ~ 2.0% ntawm tag nrho qhov hnyav ntawm cov khoom siv cementitious, thiab qhov ntau npaum li cas yog 0.2% ~ {{7} }.5%; ib qho kev sim sib xyaw ua ke yuav tsum tau ua ua ntej siv los nrhiav qhov zoo tshaj plaws;
2. Nws tsis tuaj yeem siv ua ke nrog naphthalene series high-efficiency dej-txo cov khoom siv. Thaum siv los ua ke nrog lwm cov khoom sib xyaw, cov kev ntsuas sib xyaw ua ke yuav tsum tau ua ua ntej;
3. Slump yog rhiab heev rau kev siv dej, thiab kev siv dej yuav tsum tau tswj nruj me ntsis thaum siv;
4. Ua tib zoo saib xyuas cov pob zeb nto.
Naphthalene series high-efficiency dej txo tus neeg sawv cev
1. Ntau npaum li cas: hmoov: 0 75-1.5%; kua: 1.5-2.5%.
2. Thaum siv cov porous aggregate, nws yog ib advisable mus ntxiv dej thiab do ua ntej, ces ntxiv dej-txo tus neeg sawv cev.
3. Thaum lub slump loj, yuav tsum tau them nyiaj mloog mus rau lub vibrating lub sij hawm kom tsis txhob ntev dhau los tiv thaiv los ntshav thiab delamination.
HSB aliphatic superplasticizer
1. Nrhiav qhov pom kev zoo los ntawm kev sim. Cov koob tshuaj pom zoo yog 1.5-2%;
2. Ntxiv HSB thiab sib tov dej rau cov pob zeb tib lub sijhawm, lossis koj tuaj yeem ntxiv nws tom qab. Thaum ntxiv HSB pob zeb, do rau 30 vib nas this;
3. Vim tias qhov txo qis ntawm cov dej loj ntawm HSB, ua ntej pib qhov kev teeb tsa ntawm cov pob zeb, ib txheej ntawm cov xim daj slurry yuav zais rau ntawm qhov chaw, uas yog qhov tshwm sim ib txwm muaj. Cov xim yuav ploj mus tom qab cov pob zeb yog pounded thiab grouted, los yog cov xim yuav ploj lawm tom qab cov pob zeb muaj zog. Cov xim yuav ploj sai dua los ntawm kev ywg dej thiab kho yam tsis muaj kev cuam tshuam rau sab hauv thiab qhov chaw ntawm cov pob zeb.