![]() ![]() Used to create unusual shapes for unique structures.Ī square foot of standard 3500 – 5000 psi concrete weighs about 150 pounds. ![]() These are typically left in place after the concrete is poured. These are made in a factory out of a variety of materials. They can be as simple as a few 2x4s nailed together to form a sidewalk or pad. Traditional timber forms are the most basic and widely used. There are six major types of concrete forms that can be used to hold and mold concrete in place while it sets and cures. They hold wet concrete in place until it hardens and assumes the desired shape. Some forms like wood are removed once the cement hardens, while others like brick, stone, or insulation remains.įorms are like different shaped molds. The purpose of forms is to hold the semi-solid cement in place until it hardens. For as long as people have used concrete, there have been forms to shape and mold it into place.įorms come in a variety of materials such as wood, metal, plastic, other masonry products like stone or brick, and foam insulation panels. The history of concrete forms, also known as falsework or formwork, dates back to the Romans who used concrete and cement to build roads and structures. None of this would be possible without concrete forms. This ability to fill voids and assume shapes is what makes concrete one of the most widely used and versatile building materials in the world. It eventually hardens to assume the shape mold or form it was poured into. It can be manipulated and worked in its liquid form to assume almost any shape. Or a few pieces of wood nailed together to form a brick mold.Ĭoncrete is a unique building product because it starts out as a semi-solid. Basic forms on the other hand can be as simple as 2x4s nailed together to form the outer edges of a sidewalk. ![]() We use these advanced forms to build some of the most energy efficient homes in the world. These systems are call Insulated Concrete Forms or ICF. Many newer forming systems do other things as well, such as providing insulation. Even finish products like cast fireplace surrounds, furniture, planters and countertops are built using concrete and forms. This same basic method is used to build patios, sidewalks, footings, walls and even large projects like pillars, bridges and damns. Later you remove the forms and the result is a foundation. The forms are built, rebar installed and concrete is poured. Solid concrete foundations are built with concrete, rebar and forms. They can be made into just about any shape and are used in a variety of applications. Think of forms as a sort of mold for concrete. When the wet concrete dries, it assumes the shape of the form it was poured into. Concrete forms are a solid structure that holds wet concrete in place. ![]()
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