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      General Studies 3

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      • Policy on manufactured sand (M-sand)

      Policy on manufactured sand (M-sand)

      • Posted by Vizmins Official Post
      • Date January 30, 2021
      • Comments 0 comment
      General-Studies-paper-3-science-and-technology

      M-sand policy

      • The Supreme Court had banned illegal mining on riverbeds in 2017.
      • The Rajasthan government has brought a policy on manufactured sand (M-sand).
      • It has given industry status to the units producing it for construction work and reducing the dependence on bajri (riverbed sand).
      • Policy
        • The policy will enable the investors to set up M-sand units by utilising the incentives offered by the State government.
        • It will also help in environmental protection and generate faith among the public in the efficacy of M-sand for construction works.
        • The policy would help create employment opportunities through new units and resolve the issue of huge quantities of waste generated in the mining areas.
        • The Supreme Court had banned illegal mining on riverbeds in 2017.

      About M-sand

      • M-sand is a substitute of river sand for concrete construction.
      • Manufactured sand is produced from hard granite stone by crushing.
      • The crushed sand is of cubical shape with grounded edges, washed and graded to as a construction material.
      • The size of manufactured sand (M-Sand) is less than 4.75mm.

      Significance of the policy

      • It can be dust free, the sizes of m-sand can be controlled easily so that it meets the required grading for the given construction.
      • It is well graded in the required proportion.
      • It does not contain organic and soluble compounds that affect the setting time and properties of cement, thus the required strength of concrete can be maintained.
      • It does not have the presence of impurities such as clay, dust and silt coatings.

      Tag:science and technology, UPSC

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