Envirocon publicly claims that two labourers can install up to 160 square meters (m2) of Interbloc wall per day. This is based on the assumption that the labourers are experienced and that the laying conditions are good.
We analysed over 30 jobs to provide a more accurate figure for inexperienced installation staff and found that the average installation rate for jobs consisting of 100 blocks or more was 11.46 blocks per hour. The fastest rate was 21.56 blocks per hour and the slowest was 4.5 blocks per hour.
For jobs consisting of under 100 blocks, the average installation rate was 6.06 blocks per hour. The fastest rate was 11.1 blocks per hour and the slowest was 3.8 blocks per hour.
We found that the following factors had a significant impact on the installation rate:
- Site access and block layout: Having the blocks close to where they will be installed makes a big difference to the installation rate. This reduces double handling and potential damage to the blocks.
- The base layer of blocks: The base layer of blocks takes the longest to put in. Every subsequent layer locks into place very easily after that. So short, high walls will always be faster to place than long low walls.
- The foundation: A level concrete foundation is the best foundation to place the blocks on. This will make the installation process easier and faster.
In conclusion, Envirocon's guidance on the installation of Interbloc blocks is generally accurate. However, the actual installation rate will vary depending on the experience of the labourers, the laying conditions, and the size and layout of the wall.
Here are some additional tips for installing Interbloc blocks:
- Use a lifting device to move the blocks to the installation site. This will reduce the risk of injury and damage to the blocks.
- Use a level to ensure that the foundation is level. This will help to ensure that the blocks are installed straight.
- Use a grout to fill the gaps between the blocks. This will help to strengthen the wall and prevent water from seeping in.
- Install a weep hole at the bottom of the wall to allow water to drain out.
By following these tips, you can install Interbloc blocks quickly and easily.