Dab tsi yog Cov Khoom Siv Uas Siv Tau Zoo?

Kev sib xyaw ua ke kom zoo yog qhov tseem ceeb rau kev ua tiav qhov xav tau lub zog, durability, workability, thiab lwm yam khoom ntawm cov pob zeb. Qhov sib xyaw ua ke yog nyob ntawm ntau yam xws li cov ntawv thov, cov qauv tsim, ib puag ncig, thiab cov ntaub ntawv muaj. Nov yog qee qhov sib xyaw ua ke sib xyaw siv hauv kev tsim kho:

1. General-Purpose Concrete:

• 1:2:3 Mix ratio (los ntawm ntim):
  • 1 ntu cement
  • 2 qhov chaw zoo aggregate (xuab zeb)
  • 3 ntu coarse aggregate (gravel los yog crushed pob zeb)
• 1:2:4 Mix ratio (los ntawm ntim):
  • 1 ntu cement
  • 2 qhov chaw zoo aggregate (xuab zeb)
  • 4 ntu ntxhib sib sau ua ke (gravel lossis crushed pob zeb)

2. High-Strength Concrete:

• 1:1.5:3 Mix ratio (los ntawm ntim):
  • 1 ntu cement
  • 1.5 qhov chaw zoo sib sau ua ke (xuab zeb)
  • 3 ntu coarse aggregate (gravel los yog crushed pob zeb)
• 1: 2: 2 Mix ratio (los ntawm ntim):
  • 1 ntu cement
  • 2 qhov chaw zoo aggregate (xuab zeb)
  • 2 ntu coarse aggregate (gravel los yog crushed pob zeb)

3. Lub teeb pob zeb:

• 1: 1: 6 Mix ratio (los ntawm ntim):
  • 1 ntu cement
  • 1 feem fine aggregate (xuab zeb)
  • 6 qhov sib xyaw ua ke (perlite, vermiculite, lossis nthuav av nplaum)

4. Reinforced qhob:

• 1: 1.5: 2.5 Mix ratio (los ntawm ntim):
  • 1 ntu cement
  • 1.5 qhov chaw zoo sib sau ua ke (xuab zeb)
  • 2.5 feem ntawm coarse aggregate (gravel los yog crushed pob zeb)

5. Cov pob zeb loj:

• 1: 2.5: 3.5 Mix ratio (los ntawm ntim):
  • 1 ntu cement
  • 2.5 qhov chaw zoo sib sau ua ke (xuab zeb)
  • 3.5 feem ntawm coarse aggregate (gravel los yog crushed pob zeb)

6. Pumped Qhob:

• 1:2:4 Mix ratio (los ntawm ntim):
  • 1 ntu cement
  • 2 qhov chaw zoo aggregate (xuab zeb)
  • 4 ntu ntxhib sib sau ua ke (gravel lossis crushed pob zeb)
  • Kev siv tshwj xeeb admixtures los yog additives los txhim kho pumpability thiab txo kev cais.

Nco tseg: Qhov sib xyaw ua ke uas tau teev tseg saum toj no yog nyob ntawm qhov ntsuas ntim (piv txwv li, cubic feet lossis litres) thiab yuav xav tau kev hloov kho raws li cov ntsiab lus xws li cov ntsiab lus noo noo, particle loj faib, hom cement, thiab cov khoom xav tau ntawm cov pob zeb sib xyaw. Nws yog ib qho tseem ceeb uas yuav tsum ua raws li cov txheej txheem tsim qauv tsim thiab ua cov kev sim sib xyaw kom ua kom zoo dua cov proportions thiab xyuas kom meej qhov kev ua tau zoo ntawm cov pob zeb. Tsis tas li ntawd, sab laj nrog cov kws tsim qauv tsim nyog, cov neeg muab khoom ua vaj tse, lossis sib xyaw cov kws tsim qauv tshwj xeeb rau cov phiaj xwm tshwj xeeb thiab cov lus pom zoo.