Product Overview
Blue Circle Quality Assured Mortar supplied in a 5kg tub is a ready-to-use, pre-blended cement and sand mortar designed for small-scale bricklaying, patching, and repair applications. The controlled factory mix ensures reliable strength, smooth workability, and consistent performance across both interior and exterior masonry tasks.
Formulated for convenience, the mortar only requires the addition of clean water, allowing quick preparation of manageable quantities directly in the tub. It provides excellent adhesion, easy trowelling, and a uniform finish suitable for brick, block, and stonework.
The 5kg tub offers lightweight handling, clean storage, and minimal waste for domestic or maintenance-scale use.
Features & Benefits
- Pre-blended composition: Contains cement, fine sand, and additives for uniform consistency and dependable results.
- Reliable strength development: Provides assured structural integrity for minor masonry construction and repairs.
- Strong adhesion: Bonds effectively to brick, block, and stone surfaces, reducing risk of joint failure.
- Smooth workability: Produces a workable, cohesive mix that spreads and finishes evenly.
- Interior and exterior use: Suitable for sheltered and exposed applications when fully cured.
- Simple preparation: Requires only the addition of clean water and thorough mixing before application.
- Controlled working time: Allows sufficient open time for laying, pointing, or finishing before setting begins.
Applications
- Bricklaying and blockwork: Designed for small-scale masonry projects, such as garden walling, decorative pillars, or localised wall reconstructions.
- Repointing and jointing: Ideal for restoring weathered or recessed mortar joints in existing brickwork to improve weatherproofing and aesthetics.
- Patching and crack filling: Effective for the structural reinstatement of mortar in cracked masonry or filling voids around newly installed fixtures.
- General masonry repairs: Suitable for bedding and securing loose bricks, coping stones, or paving slabs in low-traffic areas.
- Property maintenance: A convenient solution for minor building repairs, such as filling around pipe penetrations or repairing damaged steps.
- Internal renovations: Used for making good around new door or window installations and repairing internal masonry before plastering.
Installation Guidance
- Clean the substrate: Remove all loose mortar, dust, organic growth, and contaminants from the masonry surfaces to ensure a strong mechanical bond.
- Manage surface suction: Lightly dampen dry or highly porous bricks and blocks with clean water to prevent the mortar from drying too rapidly.
- Control water addition: Gradually add approximately 0.6 to 0.8 litres of clean water per 5kg of dry mix, adjusting until a stiff, workable paste is formed.
- Mix thoroughly: Stir the mixture vigorously in the tub for at least 3-5 minutes until the colour is uniform and no dry clumps remain.
- Apply with precision: Use a pointing trowel or jointing iron to firmly press the mortar into the joints, ensuring all voids are completely filled.
- Strike the joints: Finish the mortar profile (e.g., weathered, bucket handle, or recessed) only after the mix has begun to "stiffen" but before it hardens.
- Protect during curing: Cover the fresh mortar with polythene or burlap to protect against frost, heavy rain, or rapid evaporation in direct sunlight.
- Avoid re-tempering: Do not add extra water to the mix once it has started to set, as this will significantly reduce the final compressive strength.
Compliance & Performance
- Composition: Pre-blended mixture of cement, graded sand, and workability enhancers.
- Performance standard: Produced under quality-controlled conditions to meet BS EN 998-2 requirements for masonry mortars.
- Compressive strength: Typically achieves strength class M4 under standard curing conditions.
- Colour: Natural light grey finish consistent with traditional mortar appearance.
- Shelf life: Up to 12 months when stored unopened in a cool, dry place and protected from moisture.
- Health and safety: Contains cement; wear suitable protective gloves and eye protection during mixing and use.
- Important note: Use only clean water. Do not add extra cement or admixtures. Do not mix or apply when temperatures are below +5°C.