There are a few different types you can find in the home improvement store that can replace concrete cement used for driveways and walkways. These include pea gravel, crushed stone, and quarry process. Cheaper than other surface materials and low-cost to install.
What can I use as a substitute for concrete?
Glass, being a versatile inert material, is a suitable aggregate replacement for concrete. Since it can be recycled and reused many times without any changes in its chemical properties, post-consumer glass increases the durability of concrete and helps in reducing consumer landfill waste.Jul 18, 2019
- Pulverised Fuel Ash (PFA), aka 'Fly ash' as a cement substitute. PFA is a by-product of coal-burning power stations. ...
- Ground Granulated Blast-furnace Slag (GGBS) as a cement substitute. GGBS is a by-product of the iron and steel industry. ...
- Silica fume. ...
- Limestone fines. ...
- Alternative fuels.