About this code
Specification for chemical admixtures: water reducers, retarders, accelerators, superplasticizers. Defines performance requirements and tests.
Key sections
- 01Types of admixtures
- 02Performance requirements
- 03Tests
- 04Marking
Critical clauses
Clause 5.0Types
WR, R, A, WRR, WRA, SP, SPR.
In practicePCE superplasticizer most common today.
Clause 6.0Performance
% water reduction, slump retention, strength impact.
In practiceTrial in actual mix — claimed dosages often off.
Practical implications
For specifiers
Specify performance, not brand.
For suppliers
Maintain test certificates.
For executors
Verify dosing equipment calibration.
FAQs
Are PCE admixtures covered?
Yes — performance-based, brand-agnostic.
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