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Q: The approximate volume of stone required for 100 m³ of rubble stone masonry will be
  • A. 150 m³
  • B. 175 m³
  • C. 125 m³
  • D. 200 m³
Correct Answer: Option C - The approximate volume of stone required for 100 m³ of rubble stone masonry will be 125 m³. Masonry of rubble stone (per cubic meter) (i) Stone ballast - 1.25 cum (ii) Cement mortar (dry) - 0.42 cum Ashlar masonry (per cum) (i) Stone (without dressing) – 1.33 cum (ii) Stone (dressing) - 1.00 cum (iii) Cement mortar (dry) - 0.20 cum
C. The approximate volume of stone required for 100 m³ of rubble stone masonry will be 125 m³. Masonry of rubble stone (per cubic meter) (i) Stone ballast - 1.25 cum (ii) Cement mortar (dry) - 0.42 cum Ashlar masonry (per cum) (i) Stone (without dressing) – 1.33 cum (ii) Stone (dressing) - 1.00 cum (iii) Cement mortar (dry) - 0.20 cum

Explanations:

The approximate volume of stone required for 100 m³ of rubble stone masonry will be 125 m³. Masonry of rubble stone (per cubic meter) (i) Stone ballast - 1.25 cum (ii) Cement mortar (dry) - 0.42 cum Ashlar masonry (per cum) (i) Stone (without dressing) – 1.33 cum (ii) Stone (dressing) - 1.00 cum (iii) Cement mortar (dry) - 0.20 cum