Once it hardens use some soil around the low spots and slope it away from the steps packing it down firmly.
How to fix erosion under concrete steps.
Without the right support concrete will crack sink and cease to be the sturdy solid surface you can count on.
Mulching makes use of organic materials to do just this while adding nutrients back into the soil.
Properly installed gutters and downspouts will effectively channel rainwater away from building foundations thereby minimizing erosion under concrete slab foundations.
It s imperative to fix erosion under concrete as soon as possible but first you need to know what to look for.
So the concrete is buried by a few inches.
The grass will eventually fill in.
I would fill the area with concrete stone mix.
To repair you ll need a form.
Drill at least four holes through the slab at a point that s centered on the void beneath.
How to fill voids under a concrete slab.
Recommendations for installing downspouts state that they should channel water 5 to 10 feet from the base of the building.
I would suggest packing dirt rock under as well as you can.
Connect a hose to a slabjacking pump then run the hose to the holes leading to the void.
Then back fill a little bit with soil.
1 855 752 2522 uses an expanding polymer foam injected under the concrete that fills voids and if necessary raises you re settled concrete back to the proper grade.
Use a hoe or fabricate a pushing stick and stuff the concrete into the crevice.
Mix the concrete to a thicker consistency.
Use an ax handle or whatever and pack it up in there.
It looks like the problem is just that it was poured on top of the ground instead of being dug out a few inches and then being back filled after.
It s surprising how many basement water leaks erosion issues and other drainage problems can be fixed by simply redirecting water from gutters and downspouts away from the house.
You can fill it with gravel or sand checking and repacking every few months or do what another poster said and call a mud jacking company to do it.
The loose fill is susceptible to settling over time especially if it gets and stays dry which it will do under concrete sidewalks and porches.
Manure compost newspaper grass clippings and other organic materials can be good for this purpose.
Sometimes a splash block or a short run of horizontal pipe drain pipe or pvc along the ground is all that is needed.
Use a drill equipped with a masonry bit to bore.
Smooth it out on the outside.
These simple methods can help you revitalize your soil repair damaged areas and prevent soil erosion in the future.
Bury an aluminum flashing or redwood or other suitable material a couple of inches deep and about an inch from the concrete edge allowing it to extend above the bottom edge of the concrete approximately an inch.
