Thin Concrete Floor Slab
You can level an existing concrete floor with a leveling layer of new concrete but you must prepare the old concrete floor first.
Thin concrete floor slab. This type of mix is best for pouring a very thin coat of concrete such as when topping off or leveling out an existing slab. Neglecting to prepare the old surface will prevent the new concrete from adhering correctly resulting in a weak bond between the two layers. Even though a thinner layer is cheaper the cost to build a concrete walkway is largely determined by the size and length you prefer. Slab design must be checked for required additional reinforcement at penetrations.
The thicker the material the stronger it is. The thinnest a concrete slab can be is about 2 inches. As you have found a thin layer of screed on concrete breaks up like toffee. Consequently a reduction in concrete also decreases the gravity loads on the vertical load carrying.
Overlays can be paper thin or several inches thick. This article will focus on applications inch thick and less. If you can remove the whole surface layer then use a latex self levelling compound to resurface the floor make sure the surface is wet before you apply the compound. Thin concrete overlay micro topping for floors and walls surecrete s micro topping is a single component thin concrete overlay that is a self bonding cement based for interior concrete surfaces.
Preparation must create a surface profile free of bond inhibiting material. Typically a pro applies thin layers on an area like a walkway. The thin mix is laid over the old concrete slipping into. Fine aggregates are typically sand or crushed stone.
Pros of a thinner slab there are several benefits to specifying thinner slabs from a structural perspective. The aggregate in a concrete mix is listed on the label. Thin concrete pavement tcp advanced concrete engineering for industrial pavements pna expands into the exterior space with new proprietary tools and technologies that optimize pavement designs reducing construction and maintenance costs while maximizing performance and service life. Whether you have cracks chips or just a stained concrete slab thinset helps cover the old surface and create a new problem free area.
One obvious advantage is less concrete is required.