Mortar Mix NZ

Mortar Mix NZ

About the range

At Mastermix

We have developed a comprehensive range of mortar mix products to suite the needs of your next project. We believe that the right tool for the job means lasting results that you can depend on for the lifetime of the project. All our products are applied by approved Mastermix Product Applicators so you can be confident that your project will be done right the first time.

Our Mortar Mix NZ products come in premixed bags and are a cement based product range that contain no additional aggressive products. They can be used to bond together bricks or other masonry units for a variety of projects depending on what attributes are needed to get the job done.

Check out our Mortar Guide

For more information on the type of projects, product breakdowns and testimonials we have received over the years for the entire range.

We would love to help you with your next project so get in touch with Mastermix before you selecting the right premixed mortar. We can help you save time and money by working with you to understand your requirements first.

What is Mortar Mix

Mortar is a mixture of sand and cement that acts as a bonding agent for brick, stone and block laying. While there are some similarities between concrete and mortar it is important to understand their differences as they should not be used interchangeably. The most obvious difference is concrete is stronger and more durable, making it appropriate for structural projects such as posts, foundations and pathways while mortar mix NZ is used as the glue between bricks or for plastering jobs. As a general rule mortar is used to stick things together, not stand alone.

Both mortar and concrete use a mixture of cement, sand and water but concrete is reinforced with gravel and other coarse aggregates which make it tougher. While water is used to create the required slurry, the amount of water is much lower in concrete and is overall a thinner consistency than mortar. The thicker consistency of mortar makes it an ideal adhesive for bricks and tiles in both new and repair projects. The Mastermix Mortar Mix range incorporates a plasticiser which makes the product even more workable which places and floats off well to create a beautiful finish.

There are 5 main types of mortar mix in our range: Standard Mortar Mix , Super Mortar Mix , Waterproof Mortar Mix , Fire Mortar Mix , Pave Locking Mix

Each type has been specifically formulated with different ratios of cement, sand, plasticiser and water to achieve the different characteristics required by our customers. This includes projects which require extremely high strength mortar, fireproof and waterproof features.

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How can you make mortar mix stronger?

One of the key differences between brick mortar mix and concrete is their relative strength. Before answering the question of how to make mortar mix stronger it is important to understand why there is a difference in their relative strengths to begin with.

As highlighted above, mortar mix is used as a bonding agent between bricks or blocks. The goal is for the bricks or blocks to be the strongest link in the chain, with the NZ mortar mix acting as the sacrificial element as the natural movement of the chain occurs due to expansion and contraction, movement of the foundation as well as the load bearing nature of the structure in general.

These forces over time weaken the mortar, while protecting the bricks or blocks, slowly breaking or crumbling. With the bricks or blocks structurally intact it is a much simpler matter to chip out the damaged mortar mix and repoint. On the other hand, if the bricks or blocks were to fail, then the repair job would be much more significant as you would likely have to rebuild the entire wall.

With that in mind there are projects which require you to make the mortar mix stronger such as bridge builds, sewer repairs or some brick and block work. We recommend giving our technical department a call for guidance before selecting the mortar mix for your next project so we can offer the necessary advice on what mortar mix project in our range best suits your needs.

As a general rule, the less water added will strengthen the mortar mix however this only works to a point. This is because not enough water can impact the hydration process causing the mixture to crumble.

Adding hydrated lime is a time tested way to make mortar mix stronger. It is recommended to create lime mortar at ratios of 1:0.25:3 (cement:lime:sand) for higher strength and durability down to 1:3:12 for a weaker mix capable of accommodating more movement. At Mastermix, we have developed a specific mortar mix new zealand product which has a much higher compression strength than standard mortar mix products. In fact, our Super Mortar Mix has a compression strength of over 69.5MPa after 28 days compared to 55MPa for our standard Mortar Mix product.

Get in touch with our technical team to discuss if Super Mortar Mix is right for your next project.

Mortar Mix Prices

We have developed a wide range of Mortar Mix NZ products which are packed in 20kg and 30kg waterproof bags. In order to offer the best price on our mortar mix products we recommend giving us a call to discuss the requirements of your next project. Our technical team can then ensure we provide the right mortar mix product at a competitive price.

Mastermix Mortar Mix is our general purpose brick and block laying mortar. It is suitable for general use in the building and construction industry as an original construction and repair product. We batch produce our premix mortar mix to ensure consistency and incorporate a plasticiser to maximise the workability of the product.

Trade quality product

Batch mixed for consistency

Washed and graded sand, cement and plasticiser

Complies with NZ Standard 4210:1989 Code of Practice for masonry construction

Compression of 41.0MPa after 7 days and 55.0MPa after 28 days

Mortar Mix is suitable for general use in the building and construction industry:

Brick and block laying

Plastering

Independent laboratory tests have shown that Mortar Mix has a compression of 41.0MPa after 7 days and 55.0MPa after 28 days. Mortar Mix meets NZ Standard 4210:1989 Code of Practice for masonry construction.
MORE ABOUT MORTAR MIX
If you are looking for a high strength premix Mortar Mix suitable for brick and block laying than our Super Mortar Mix bag was custom developed and manufactured for you.
You can expect the same level of batch created consistency as our general use Mortar Mix. Only taken a step further with a compression strength of 69.5MPa after 28 days compared to the 55MPa compression strength delivered by our standard Mortar Mix!

Trade quality product

Washed and graded sand, cement and plasticiser

Batch mixed for consistency

High compression strength

Complies with NZ Standard 4210:1989 Code of Practice for masonry construction.

Super Mortar Mix is most suitable for projects where high compression strength is required:

Original construction and repair work for both brick and block work

Bridge repairs

Sewer repair

Pumpable grout

Independent laboratory tests have shown that Super Mortar Mix has a compression of 53.0MPa after 4 days, and 69.5MPa after 28 days.
MORE ABOUT SUPER MORTAR MIX
We developed a waterproof mortar mix designed to line areas where water is to be stored, from water tanks, reservoirs and water treatment plants. Further, it will provide, a breathable, waterproof rendered finish to the external walls of houses and commercial buildings. Typically, waterproof mortar mix products compromise compression strength in order to maximise waterproofing capabilities however our premix waterproof mortar delivers an above standard 27MPa after 28 days.

Large volumes can be pumped/sprayed

Mix is waterproof from time of set

Compressive strength

Waterproof repair medium

Suitable for potable water applications

Non-toxic

Compression of 22.5MPa after 7 days and 27.0MPa after 28 days

Waterproof Mortar Mix is most suitable for projects which come into contact with water:

Bridge repairs

Sewer repair

Pumpable grout

Paving bedding

Original construction and repair work for both brick and block work

Independent Independent laboratory tests have shown that that Waterproof Mortar Mix has a compressive strength of 22.5 MPa after 7 days and 27.0 MPa after 28 days. It meets NZ Standards 4210:1989 Code of Practice for masonry construction.
MORE ABOUT WATERPROOF MORTAR MIX
We developed our premix Fire Mortar Mix bags to withstand temperatures of between 1500 to 1800ºC making it suitable for most high temperature applications.
In addition it has the additional feature of having a very high compression strength combined with extremely low rate of shrinkage. Fire Mortar Mix forms an extremely heat resistant barrier which builds strength fast:

Trade quality product

High Temperature resistance

Builds strength early

Sets in 1 to 1.5 hours and will cure rapidly

Has a very high compression strength

Extremely low rate of shrinkage

Compression of 53.0MPa after 3 days and 70.0MPa after 28 days

Fire Mortar Mix is most suitable for projects which come into contact with high temperature:

Furnaces

Ovens

Incinerators operating at temperatures up to 1800 degrees Celsius.

Repair mortar for damaged fire bricks

Plug entry point into ovens during construction or repairs

Independent laboratory tests have shown that that Fire Mortar Mix has a compressive strength of 53.0MPa after 3 days and minimum 70.0MPa after 28 days. It meets NZ Standards 4210:1989 Code of Practice for masonry construction.
MORE ABOUT FIRE MORTAR MIX

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