Creating a Curved Colored Concrete Walkway: Forming, Coloring, and Finishing Options

Replacing a straight concrete walk with a curved, colored version adds elegance and flow to your landscape. The project requires removing the old walk, forming curves, and choosing a coloring method suited to your skill level.

Forming Curves

Remove the existing sidewalk. Use a garden hose to lay out smooth, flowing curves. Once satisfied, build forms with flexible materials:

• Masonite (hardboard): Cheap, bends easily, but degrades after 1-2 uses. Screw to stakes.
• HardiBacker or cement board: More durable, bends when pre-wet.
• Kerfed 1x4 lumber: Cut 1/4" deep slots 1/2" apart on back side for flexibility.
• Vinyl trim forms: Reusable, professional, but costly.

Coloring Methods

Integral Color (Best for DIY)

Pigment added to the concrete truck. Uniform, fade-resistant, but limited to earth tones. Requires ready-mix supplier.

Color Hardener (Pro Only)

Broadcast on fresh surface. Vibrant colors, harder surface. Difficult to apply evenly; not for beginners.

Acid Stain (DIY-Friendly)

React with cured concrete for variegated, translucent color. Permanent but unpredictable. Seal after.

Water-Based Stain (Easiest)

Like paint but penetrates slightly. Wide color range. Wears in 3-5 years; needs reapplication.

Finishing

For a broom finish on large slabs, use a bull float with handle extensions. Cure properly (keep moist 7 days) before staining or sealing.

Hire a decorative concrete contractor for integral color or hardener. For staining, a motivated DIYer can succeed with research and test patches.