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How to Mix Mortar
If you're struggling to mix the perfect mortar, check out this easy-to-follow, step-by-step guide. It includes images to show you how to mix mortar and a list of tools you'll need.
Table of Contents
What Tools Do I Need to Mix Mortar?
Below is a list of the tools that you will need to mix mortar yourself:
- Shovel
- Wheelbarrow
- Spot board
What Safety Equipment Do I Need to Mix Mortar?
Below is a list of the recommended safety equipment needed for mixing mortar:
- Safety glasses or goggles
- Dust mask
- Waterproof gloves
- Long-sleeved top and full-length trousers
What Materials Do I Need to Mix Mortar?
Depending on what type of mortar you are using, you will need either:
- Lime putty and sharp sand or
- Pre-made mortar and room temperature water
How to Prepare for Mortar Mixing
Mortar is usually used as a binding material used to repoint brick walls on a house or other brickwork. It is a good all-rounder adhesive that is used when constructing walls for a house or a garden. It can also be used as a filler between bricks and stones that have been laid on a garden path.
To prepare for mixing mortar, you must ensure that you have all of the tools, materials, and safety equipment needed to effectively and safely complete the job.
Before you start to mix the mortar, you should put on your safety goggles, dust mask, and waterproof gloves, and ensure your arms and legs are covered. Wet mortar and lime can burn the skin and damage the eyes, so it's important to wear protective equipment when handling them.
Make sure you have your wheelbarrow and spot board ready so that the mortar can be mixed and transferred quickly.
How to Mix Mortar Yourself
Below is a step-by-step guide on how to mix lime mortar by hand. However, if you prefer to hire someone to do any repointing on your behalf, they will either use the same method or bring a cement mixer to use on site:
Step 1
Empty the package of mortar mix into your wheelbarrow, being careful not to overspill it. If you are not using a pre-made mortar, mix the lime putty with sand thoroughly. It doesn't usually need water added, as it becomes wetter and more workable the more it is mixed. In the steps below, only add a little water if the mix feels too stiff.
Step 2
Add a small amount of water to the wheelbarrow. It's important that you don't begin by adding too much water as this can ruin the consistency and you will have to start again. You should focus on adding the water in gradually.
Step 3
Once you have added some water, use the shovel to lift the mortar mix over the water. Concentrate on lifting the back and sides of the mix over the water and fold it all together.
Step 4
Once all the water is mixed in, add some more water and repeat the above step. Continue to fold the mix over and combine it with the water and spread it through the mixture evenly. Continue adding and folding in water until it reaches the right consistency.
Step 5
Now, add some water to your spot board before transporting your mortar mix over to it.
Step 6
Check the consistency of the mortar mix on the spot board. If it is too hard, create a circle in the centre of the pile of mortar and insert some water into this central hole. Then start piling the mortar from the outside into the centre and continue this until the water is all mixed in.
Step 7
Continue to take the mix from the outside and move it into the centre to create the ideal consistency.
Step 8
Once the consistency is perfect, the brick mortar mix is then ready for use.
FAQs
How Long Should I Mix Lime Mortar by Hand?
Lime mortar can be mixed by hand or in a cement mixer. You should mix the mortar for 5 minutes and allow it to rest for 3 minutes, then go on to mix it for another 3 minutes for the best results.
How Do You Mix Mortar in a Bucket?
Pre-wet your bucket ready for mixing and pour in the appropriate amount of cement, lime, and sand. Add water and fold the mixture from the bottom as you continue until the water is fully mixed in. Keep adding water until the mortar is a smooth consistency. You can stop mixing when the mortar is wet enough to slip off your spade easily, but holds its shape if you hollow out the mixture.
How Long Does Mortar Take to Dry?
This will depend on a variety of factors such as the temperature and humidity, as well as the type of mortar being used. On average, initial setting takes around 48 hours. However, in order for the mortar to reach its full strength, cement-based mortar can take up to 28 days to fully cure, while lime mortar can potentially take even longer.
Can I Reuse Leftover Mortar?
Cement mortar must be used within about 2 hours and should be thrown away once it starts to harden as adding more water at this stage weakens it. Lime putty mortar hardens on contact with air, but re-mixing it makes it workable again so it can be reused. Bagged hydraulic lime mortar can be re-mixed, but follow the manufacturer's guidelines.
How Long Does Mortar Last?
If mixed and applied correctly, mortar can last for decades with little or no maintenance. Lime mortar is especially durable and can last a lifetime with proper care, although weather conditions and moisture levels can impact its actual lifespan.
