26/08/2026
AAQ ARCHITECT & ENGINEERING
Concrete Reinforcement Spacer / Cover Block
Product: Precast Concrete Reinforcement Spacer
Manufacturer: AAQ Architect & Engineering
Concrete Mix Ratio: 1 : 1 : 1 — Cement : Sand : Crush (by volume)
Recommended Grade: M25 or higher, subject to laboratory cube testing.
A 1:1:1 mix is a rich concrete mix, but the actual concrete grade cannot be confirmed from the ratio alone; it should be verified by compressive-strength testing.
Specifications
Material: High-quality cement, clean sand and graded crushed aggregate
Mix Proportion: 1 part cement : 1 part sand : 1 part crush
Manufacturing: Properly compacted/vibrated precast concrete
Function: Maintains the required concrete cover around reinforcement steel
Applications: RCC slabs, beams, columns, foundations and other reinforced-concrete structures
Cover Options: Can be manufactured in different cover thicknesses such as 20 mm, 25 mm, 30 mm, 38 mm, 40 mm, 50 mm, etc., according to structural requirements
Central Hole: Provided for secure placement/tie fixing with reinforcement
Durability: Concrete spacer provides better compatibility with RCC than plastic/metal supports
Quality Requirement: Spacer should be adequately cured and should not be cracked, honeycombed or easily broken.
Importance
Concrete spacers are essential for maintaining the specified concrete cover over reinforcement bars. They help:
Maintain correct rebar position and alignment during concreting.
Provide adequate protection of steel against corrosion and moisture.
Ensure the designed concrete cover is achieved.
Improve the durability and fire resistance of RCC members.
Prevent reinforcement from touching the formwork.
Help achieve the intended structural performance of slabs, beams, columns and foundations.
Suggested Product Description
“AAQ Architect & Engineering Concrete Spacers are high-quality precast RCC cover blocks manufactured using a rich 1:1:1 cement-sand-crush mix. Designed to maintain accurate reinforcement cover, these spacers provide reliable rebar support, improve durability, and protect reinforcement against corrosion and fire. Available in various cover sizes as per structural requirements.
