John Langell Concrete Construction has been serving the Pittsburgh area for over 30 years. John took over from his dad's successful concrete business back starting in 1950, so John KNOWS CONCRETE! If you are looking for the best and most trusted concrete contractor in Pittsburgh and the surrounding areas. You probably have walked all over our sidewalks, driveways, and patios in Pittsburgh and have seen our name there. If you'd like to become one of our satisfied clients, call today for exceptional service.
To improve safety for drivers and pedestrians, have concrete bumpers installed at the heads of parking spaces. By leaving an appropriate space between bumpers, you create pedestrian lanes while at the same time preventing cars from pulling too far forward.
Austrian engineer Karl von Terzaghi developed the mechanics behind modern foundation construction, including mathematical models for bearing capacity. Employed by the Central Powers during WWI, Terzaghi later took a post at MIT, where he worked with the mother of famed poet Sylvia Plath.
A properly designed concrete mixture will provide the desired workability needed when the concrete is fresh and the required durability and strength for the finished product when the concrete is hardened. Typically, the mix will be 10 percent to 15 percent cement, 60 percent to 75 percent aggregate, and 15 percent to 20 percent water.
The S-curb is an 18-inch vertical curb with 6 inches of curb on the surface and another 12 inches of footing going straight into the ground. S-curbs are especially durable, as they have a sidewalk poured with them, creating one solid single unit.
Hydrated lime can be applied to expansive soils in order to reduce swelling. Since lime has a high calcium content, the sodium in the clay is replaced with calcium from the lime, reducing the soil's ability to expand.
Similar Businesses
