How should I store bags of hydrated lime on site?

Store them in a weatherproof shed on a raised, dry platform. The stack height should not exceed 10 bags (Clause 6.1.1).

What is the shelf life of quicklime?

Even under good storage conditions, it is recommended to use quicklime within 2-3 months as it readily absorbs moisture and carbon dioxide from the atmosphere, reducing its quality (Clause 5.2.1).

What are the general precautions for storing any type of lime?

The storage place should be dry, weatherproof, and located away from damp areas. The storage floor should be impermeable (Clause 4).

IS 14401

: 1996

Guidelines for handling and storage of building limes

CurrentSpecializedGuidelinesMaterials Science · Building Limes and Gypsum Products

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This standard provides guidelines for the proper handling and storage of various types of building limes, such as quicklime and hydrated lime. It outlines necessary precautions to prevent deterioration from exposure to air and moisture and details safe practices for on-site storage, stacking, and slaking.

Guidelines for handling and storage of building limes

Quick Reference Values

Maximum stack height for bagged hydrated lime10 bags

Recommended usage period for hydrated lime in bags1 month

Recommended usage period for quicklime (good storage)2-3 months

Practical Notes

Lime is caustic; always use appropriate Personal Protective Equipment (PPE) like gloves, goggles, and respiratory masks during handling and slaking.

Ensure storage areas are completely weatherproof as moisture absorption significantly degrades the quality and reactivity of both quicklime and hydrated lime.

Quicklime generates significant heat when slaked (mixed with water); add lime to water slowly and in a well-ventilated area to control the reaction.