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Doctors Medicines MCQs Q&A

  1. Neither factor I nor II affects.
  2. Only factor I affects.
  3. Only factor II affects.
  4. Both factors I and II affect.
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1 Answers

Option 4 : Both factors I and II affect.

Concept:

Cement Stabilization:

  • Cement has been widely used for surface treatment of soil used in subgrades of highways or railways.
  • Clays with calcium ions are easily stabilized by cement, whereas clays with sodium are better stabilized by lime stabilization.

The following table shows the percentage by volume of cement required for the stabilization of soil:

Type of soil

Percentage of cement

Sandy soil

6 – 10 %

Silts and clays of low plasticity

8 – 12 %

Clays of high plasticity

10 – 14%

The following factors affect the cement stabilization of soil:

  1. Type of soil
  2. Quantity of cement
  3. Quantity of water
  4. Mixing, compaction and curing
  5. Admixtures

Soil Stabilization: 

  • It is also known as soil improvement.
  • It is defined as the process of alteration of properties of soil to improve its engineering performance.
  • The following are the methods of soil improvement:
  1. Compaction (Mechanical or Dynamic)
  2. Vibroflotation
  3. Preloading
  4. Sand and stone columns
  5. Use of admixtures (like lime, cement, fly ash)
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Related Questions

In the question below is given a statement followed by two courses of actions numbered I and II. A course of action is a step or administrative decision to be taken for improvement, follow-up or further action in regard to the problem, policy, etc. On the basis of the information given in the statement to be true, then decide which of the suggested courses of action logically follow(s) for pursuing. Statement: The wastage of water is discouraged by all the nations across the globe. The water table is depleting and it is claimed that by 2050, there will be an acute shortage of water. Measures to harvest rainwater are being encouraged.  Courses of action: I. The amount of water to be used in households should be limited by all governments.  II. All domestic households should be advised to install rainwater harvesting systems and reuse of water should be promoted.?
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