paint or acid etch
theywork well as long as you can get the existing concrete clean enough
Radiant flooring is an option if one has an existing concrete floor. The radiant flooring system is installed underneath the concrete floor to heat the concrete.
No do to the concrete settling the concrete on top would split
You must form on top of the existing slab and drill in anchors to join the new concrete to the old this is called a cap
To increase the concrete cover on an existing column, you can apply a layer of shotcrete or form a new concrete jacket around the column. First, clean the surface of the existing concrete to ensure proper bonding. Then, create forms to contain the new concrete, ensuring that the additional cover meets the required thickness. Finally, pour or spray the new concrete mix and allow it to cure adequately.
Want to replace an existing subsided external concrete step.
A concrete path produces greater friction that a linoleum floor because its surface is rougher. This allows more surface area to contact an object moving along the path.
Yes, slurry concrete can be used to fill an existing concrete pit. It is a fluid mixture that can easily flow into voids and gaps, ensuring a solid fill. However, it's essential to ensure proper preparation of the existing concrete surface to promote bonding and prevent issues like settling or cracking. Additionally, consider the pit's size and depth, as these factors may influence the choice of filling material.
To build a patio cover on existing concrete, you can use anchor bolts to secure the cover to the concrete. First, measure and mark the placement of the cover on the concrete. Then, drill holes for the anchor bolts and attach the cover frame to the concrete using the bolts. Finally, install the roofing material to complete the patio cover.
To add a concrete step to an existing slab, you will need to prepare the surface by cleaning it thoroughly and applying a bonding agent. Then, build a form for the step, pour concrete into the form, and level it. Allow the concrete to cure properly before removing the form and finishing the step as desired.
Metal presents,colour,water content.
in between existing concrete and the new concrete you need to place an expansion joint in between the two.