How To Cement A Gravel Garage Floor

Good ground preparation starts with removing the topsoil.

How to cement a gravel garage floor.

Pour 3 inches or 5 cm. These bars will provide strength to the concrete. Also called mudjacking or concrete raising a matrix of holes each about three inches in diameter is drilled into the concrete. Place the steel rods or rebar around the edges of the freshly poured concrete mix and through the middle of your floor if working with a large area.

Add the gravel or crushed stone at a ratio of up to 5 portions of gravel for every 1 portion of cement and sand mixture. Soil that has been dug up before should be compacted the gravel or stone also needs to be compacted. Then a slurry of sand gravel ash and water is injected into the holes. If the excavation had to go deeper and the soil below the gravel layer is disturbed the deeper portion might be filled with 2 to 4 inch rock also compacted.

The best combination would be 1 part cement 2 parts sand small aggregates 3 parts gravel large aggregate and 1 part water. Apply it evenly to your garage floor and let it dry thoroughly. Divide the basement floor into four even quadrants marking the quadrants by spray painting the gravel. Mix all the dry materials first and slowly add water as you go along.

Place strips of 1 2 inch plywood against the two concrete basement walls in the first. In my area no one would use sand. You may wish to have this job done by a pro but you can do it yourself. 4 to 6 inches compacted densely 90 or to refusal of 3 4 minus crushed rock gravel would be typical.

Have the bars prepared before pouring. It utilizes your existing concrete slab with only minor touch ups required if the slab jacking efforts succeed. Just be sure to leave enough cement paste to fill the spaces between the gravel. Then if the soil has not previously been disturbed i e dug up a four inch layer minimum of gravel or stone should be added.

The tools can be rented at many rental places and the skills are not very difficult to learn. Mix all of these thoroughly together until the lumps disappear.