Premixed Masonry Mortar

Premixed Type N Cement-Based Masonry Mortar

MASONRY MIX is a premium pre-mixed cement-based masonry mortar comprising hydraulic binders, selected aggregates, special adhesion agents and high-performance additives.

The product is supplied as a dry powder in factory-controlled, pre-weighed bags. It requires only the addition of clean water to produce a cohesive and workable mortar suitable for application in thicknesses from approximately 5–50 mm.

MASONRY MIX provides strong adhesion between concrete blocks, panels and wall connections. It is suitable for internal and external masonry work in dry, humid and harsh weather conditions.

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Properties

Technical Data

Properties

Property	Value
Type	Pre-mixed Type N masonry mortar
Color	Grey
Mixing Water	Approximately 7–10 litres per 50 kg bag
Application Thickness	5–50 mm
Wet Density	Approximately 1.9 kg/l
Pot Life	Approximately 1 hour at 23°C
Set Time	Approximately 4 hours at 23°C
Compressive Strength (ASTM C109)	≥ 6 MPa after 28 days
Flexural Strength (ASTM C348)	≥ 3 MPa after 28 days
Air Content	≤ 16%
VOC Content	> 5 g/l, as stated in the current TDS
Chloride Content	Nil
Reaction to Fire (EN 13501-1)	Class A1
Standards	ASTM C109, ASTM C348, ASTM C270 and ASTM C780
Packaging	50 kg paper bag
Shelf Life	Minimum 12 months under recommended storage conditions

Technical Data

Uses

Laying cement and concrete blocks.
Laying concrete masonry units and panels.
Filling block-wall joints.
General masonry construction and wall connections.
Suitable for internal and external applications.
Suitable for wet and dry conditions.
Suitable for block walls and rough concrete surfaces.
Suitable for humid conditions and harsh weather environments.
Application in thicknesses from approximately 5–50 mm.

Advantages

Pre-mixed Type N cement-based masonry mortar.
Contains specially selected hydraulic binders and aggregates.
Enhanced with a special adhesion additive.
Strong adhesion to different types of concrete blocks.
Provides strong bonds at block and wall connections.
Suitable for internal and external use.
Suitable for humid and dry conditions.
Suitable for harsh weather conditions.
Consistent factory-controlled formulation.
Requires only the addition of clean water.
Can be applied in thicknesses from 5–50 mm.

Standards Compliance

Compressive strength tested according to ASTM C109.
Flexural strength tested according to ASTM C348.
Complies with ASTM C270 requirements for mortar for unit masonry.
Evaluated according to ASTM C780 test methods for masonry mortar.

Substrate Preparation

The block-wall surface must be sound, clean and free from loose material, grease, laitance, curing compounds, dirt and other contaminants.

Before application, wet the complete surface using clean potable water. At the time of application, the substrate should appear damp without standing or pooled water.

Mixing

Place approximately 7–10 litres of clean water in a suitable mixing container for each 50 kg bag.
Slowly add MASONRY MIX powder to the water while mixing.
Use a mechanical mortar mixer or a low-speed electric drill fitted with a suitable mixing paddle.
Mix for approximately 3–4 minutes until a uniform and lump-free consistency is obtained.
Allow the mixture to stand for approximately 10 minutes.
Remix briefly before application.
Do not add excessive water or additional materials to the mixture.

Application

Neutralize the suction of the block surfaces using clean water.
Remove any excess or standing water before applying the mortar.
Spread MASONRY MIX using a suitable trowel on the contact surfaces and joints.
Position the blocks while the mortar remains workable.
Fill the joints in the same manner as conventional sand-and-cement masonry mortar.
Check the alignment and level of each masonry unit during installation.
After the mortar begins to stiffen, smooth the joints and remove projections or irregularities.

Yield and Coverage

Approximate coverage for one 50 kg bag applied at a 10 mm joint thickness:

Solid Block Size	Approximate Coverage
400 × 200 × 200 mm	15 linear metres
400 × 200 × 150 mm	22 linear metres
400 × 200 × 100 mm	31 linear metres

The stated consumption values are for general guidance. Actual coverage depends on block dimensions, substrate condition, joint thickness, application method and material wastage.

Cleaning

Clean tools immediately after completing the application using clean water. Hardened material must be removed mechanically.

Storage and Shelf Life

MASONRY MIX has a minimum shelf life of 12 months when stored in its unopened and undamaged original packaging in a dry, shaded place, away from direct sunlight, at an ambient temperature below 35°C.

Packaging

50 kg paper bags.

Health and Safety

Wear suitable protective gloves and safety goggles during mixing and application.
Avoid unnecessary contact with the skin and eyes.
In case of skin contact, wash immediately with soap and clean water.
In case of eye contact, rinse immediately with plenty of clean, cold water.
Seek medical advice if irritation continues.
The product is non-flammable and is not classified as hazardous under current legislation.
Do not dispose of the material in water or soil. Follow applicable local disposal regulations.

Quality and Technical Support

WHITE SAND products are developed and manufactured under a quality-oriented product-development process and an independently certified quality management system.

WHITE SAND provides technical assistance regarding masonry preparation, mortar selection, mixing, application and curing requirements.