Building Material - self compacted concrete

Self Compacted Concrete MCQ

For self-compacted concrete water/powder ratio by volume should be

• 0.80 to 1.0 
• 1.2 to 1.4
• 0.6 to 0.8
• 1.0 to 1.2

 

.8 to 1;

Indicative proportions of materials are shown below for self-compactible concrete:
1) Water/powder ratio by volume is to be 0.80 to 1.00
2) Total powder content to be 160 to 240 litres (400-600 kg) per m3
3) The sand content may be more than 38% of the mortar volume.
4) Coarse aggregate content should normally be 28 to 35% volume of the mix.
5) Water/cement ratio is selected based on the strength required. In any case, water content should not exceed 200 litres/m3.

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