Site-mix concreting involves proportioning and mixing concrete at the construction site using approved materials and suitable batching and mixing equipment.

Our site-mix concreting support may include:

• Review of the approved concrete mix design and material specifications.
• Coordination of cement, fine aggregate, coarse aggregate, water, and approved admixtures.
• Batching by weight or by another method specifically permitted by the applicable specification and approved procedure.
• Control of aggregate moisture and related water adjustments where required.
• Monitoring of water addition, mixing procedure, and batch consistency.
• Coordination of fresh-concrete testing and sampling.
• Proper placement, compaction, finishing, and curing.

Site-mix concrete intended for structural work must follow the approved mix design and applicable quality-control requirements. Arbitrary volume proportions should not replace an approved design where design-controlled concrete is required.

Suitable for: Projects where site conditions, quantity requirements, access, logistics, and approved construction procedures make on-site mixing appropriate.

• IS 456 — Plain and Reinforced Concrete: Code of Practice: Concrete construction, durability, workmanship, and acceptance requirements within its scope.
• IS 10262 — Concrete Mix Proportioning: Guidelines: Guidance for developing concrete mix proportions.
• IS 4926 — Ready-Mixed Concrete: Code of Practice: Requirements and guidance for the production and supply of ready-mixed concrete.
• IS 383 — Coarse and Fine Aggregate for Concrete: Specification: Relevant aggregate requirements.
• IS 1199 series — Fresh Concrete: Methods of Sampling, Testing and Analysis: Applicable procedures for fresh-concrete sampling and testing.
• IS 516 series — Hardened Concrete: Methods of Test: Applicable methods for concrete strength and other specified hardened-concrete properties.