IS 12163:1987 is the Indian Standard (BIS) for liquid membrane-forming curing compounds for concrete - specification. This standard specifies the requirements for liquid membrane-forming compounds used for curing concrete. It covers two types (white pigmented and clear/translucent) and details performance criteria like water retention efficiency and drying time, along with testing methods.
Specified requirements for liquid membrane-forming compounds used for curing concrete to retain moisture.
Overview
- Status
- Superseded — superseded by IS 12163:1999
- Usage level
- Specialized
- Domain
- Materials Science — Admixtures and Chemical Products for Concrete
- Type
- Specification
Also on InfraLens for IS 12163
Practical Notes
! Ensure the concrete surface is damp but free of standing water before application for best results.
! The application rate specified by the manufacturer is critical for forming an effective membrane; over-dilution or thin application will reduce curing efficiency.
! White pigmented compounds (Type 1) are preferred in hot, sunny conditions as they reflect sunlight and reduce heat gain in the concrete.
Frequently referenced clauses
Cl. 3General Requirements
Cl. 4Requirements (Water Retention & Drying Time)
Cl. 5Sampling and Criteria for Conformity
Appendix A - Method for Determination of Water Retention Efficiency of Curing Compound
curing compoundconcreteadmixtureresinwax
International Equivalents
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International Comparison — Coming Soon
We're adding equivalent international standards for this code.
Key Values4
Quick Reference Values
Maximum water loss at 72h0.055 g/cm²
Maximum drying time4 hours
Minimum shelf life6 months
Minimum daylight reflectance (Type 1)60 percent
Tables & Referenced Sections
Key Tables
Table 1 - Requirements for Liquid Membrane-Forming Curing Compounds
Frequently Asked Questions3
What is the main performance requirement for a curing compound under this code?+
The water loss from the concrete surface shall not exceed 0.055 g/cm² after 72 hours when tested as per Appendix A (Table 1).
What are the two types of curing compounds specified in IS 12163?+
Type 1 (White Pigmented) and Type 2 (Clear or Translucent, with or without fugitive dye) are specified in Clause 3.1.
What is the maximum permissible drying time for the compound?+
It should set to touch in not more than 4 hours when applied to a moist concrete surface (Clause 4.2).
QA/QC Inspection Templates
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QA/QC templates coming soon for this code.